Fixed cycle delay: Difference between revisions

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Shortest possible CPU code that creates N cycles of delay, depending on constraints.


== Delay code ==
== Code ==
 
Shortest possible CPU code that creates N cycles of delay, depending on constraints.


All code samples are written for CA65.
All code samples are written for CA65.
Line 8: Line 7:
Assumptions:
Assumptions:
* No page wrap occurs during any branch instruction. If a page wrap occurs, it adds +1 cycle for each loop, completely thwarting the accurate delay.
* No page wrap occurs during any branch instruction. If a page wrap occurs, it adds +1 cycle for each loop, completely thwarting the accurate delay.
* No interrupt / NMI occurs during the delay code. This is important for accurate delay, but it is also required for correctness in those code samples where a PLA-PHA sequence is used.
* No interrupt / NMI occurs during the delay code.
 
It is possible to verify on compile time that no page wrap occurs,
by replacing all branches with these macros:
<pre>.macro branch_check opc, dest
    opc dest
    .assert >* = >dest, warning, "branch_check: failed, crosses page"
.endmacro
.macro Jcc dest
        branch_check bcc, dest
.endmacro
.macro Jcs dest
        branch_check bcs, dest
.endmacro
.macro Jeq dest
        branch_check beq, dest
.endmacro
.macro Jne dest
        branch_check bne, dest
.endmacro
.macro Jmi dest
        branch_check bmi, dest
.endmacro
.macro Jpl dest
        branch_check bpl, dest
.endmacro
.macro Jvc dest
        branch_check bvc, dest
.endmacro
.macro Jvs dest
        branch_check bvs, dest
.endmacro</pre>


It is permissible for DMA to steal cycles during the loops.
It is permissible for DMA to steal cycles during the loops.
Line 46: Line 14:
in order to get the correct delay.
in order to get the correct delay.


Explanations on the requirements:
=== Explanations on the requirements ===
* @zptemp means you have a zeropage address that you can write random data into.
 
* @rti means you have a dummy interrupt handler installed that does nothing but <code>RTI</code>.
* @rts12 means you know a memory address that contains byte $60 (<code>RTS</code>).
* @rts12 means you know a memory address that contains byte $60 (<code>RTS</code>).
* @rts14 means you know a memory address that contains a harmless 2-cycle instruction that fits your constraints (such as <code>CLC</code>, <code>LDA #0</code>, or <code>NOP</code>), followed by <code>RTS</code>.
cycle instruction that fits your constraints (such as <code>LDA $00</code>), followed by <code>RTS</code>.
* @rts15 means you know a memory address that contains a <code>JMP</code> that jumps to another location that contains <code>RTS</code>. Alternatively, it means you know a memory address that contains a harmless 3-cycle instruction that fits your constraints (such as <code>LDA $00</code>), followed by <code>RTS</code>.
 
* delay_a_25_clocks, delay_256a_16_clocks, delay_256a_x_33_clocks, delay_256a_x_31_clocks, and delay_256x_a_30_clocks are defined at [[Delay code]].
=== Instructions, addressing modes, byte counts, cycle counts and notes ===
 
{| class="wikitable testtable"
! scope="col"| Addressing mode
! scope="col"| Instruction type
! scope="col"| Bytes
! scope="col"| Cycle count
! scope="col"| Example instruction
! scope="col"| Notes
|-
! scope="row"| Implied
! scope="row"| Inter-register
| 1 || 2 || <code>TAX</code> || <code>NOP</code> has no side effects. Flag-manipulations like <code>CLC</code>, and <code>SEC</code><code>CLV</code> are used when their effects are desired.
|-
! scope="row"| Implied
! scope="row"| Stack push
| 1 || 3 || <code>PHA</code> || <code>PHP</code> is only paired with <code>PLP</code>.
|-
! scope="row"| Implied
! scope="row"| Stack pop
| 1 || 4 || <code>PLA</code> ||
|-
! scope="row"| Implied
! scope="row"| Return
| 1 || 6 || <code>RTS</code> || Used indirectly when paired with <code>JSR</code>. Similarly for <code>RTI</code>.
|-
! scope="row"| Immediate
! scope="row"|
| 2 || 2 || <code>CMP #$C5</code> || Includes instructions like <code>LDA</code>, <code>LDX</code> and <code>LDY</code>. Other ALU instructions are used in more complex situations.
|-
! scope="row"| Relative
! scope="row"| Branch
| 2 || 2—4 || <code>BCC *+2</code> || Branch takes 3 cycles when taken, 2 otherwise. A page crossing adds +1 cycle when branch is taken, but because of difficulties setting that up, we don't use it.
|-
! scope="row"| Zeropage
! scope="row"| Read, write
| 2 || 3 || <code>LDA $A5</code>
|-
! scope="row"| Zeropage
! scope="row"| RMW
| 2 || 5 || <code>INC @zptemp</code> || Writing to zeropage is only permitted when @zptemp is available. Technically we could save @zptemp into register and restore at end, but it is bytewise inferior to other techniques.
|-
! scope="row"| Zeropage indexed
! scope="row"| Read, write
| 2 || 4 || <code>LDA $EA,X</code> || Inferior to 2 × <code>NOP</code>, but useful for hiding additional code to be executed in a loop.
|-
! scope="row"| Zeropage indexed
! scope="row"| RMW
| 2 || 6 || <code>INC @zptemp,X</code> || Only doable when X is known to be 0, or when entire zeropage can be clobbered.
|-
! scope="row"| Indexed indirect
! scope="row"| Read, write
| 2 || 6 || <code>STA (@ptrtemp,X)</code> || Only doable when X is known to be 0.
|-
! scope="row"| Indexed indirect
! scope="row"| RMW
| 2 || 8 || <code>SLO (@ptrtemp,X)</code> || The most cost-effective instruction. Only doable when X is known to be 0, lest we write to a random address. All instructions in this category are unofficial.
|-
! scope="row"| Indirect indexed
! scope="row"| Read
| 2 || 5—6 || <code>LDA (@ptrtemp),Y</code> || Never used by this code.
|-
! scope="row"| Indirect indexed
! scope="row"| Write
| 2 || 6        || <code>STA (@ptrtemp),Y</code> || Only doable when Y is known to be 0.
|-
! scope="row"| Indirect indexed
! scope="row"| RMW
| 2 || 8        || <code>SLO (@ptrtemp),Y</code> || All instructions in this category are unofficial.
|-
! scope="row"| Absolute
! scope="row"| Jump
| 3 || 3 || <code>JMP *+3</code> ||
|-
! scope="row"| Absolute
! scope="row"| Read, write
| 3 || 4 || <code>LDA $2808</code> || Inferior to 2 × <code>NOP</code>, but can be used carefully to hide additional code to be executed in a loop.
|-
! scope="row"| Absolute
! scope="row"| RMW
| 3 || 6 || <code>INC $4018</code> || Inferior to 3 × <code>NOP</code>.
|-
! scope="row"| Absolute indexed
! scope="row"| Read
| 3 || 4—5 || <code>LDA $0200,X</code> || Inferior to shorter alternatives.
|-
! scope="row"| Absolute indexed
! scope="row"| Write
| 3 || 5 || <code>STA $0200,X</code> || Inferior to shorter alternatives.
|-
! scope="row"| Absolute indexed
! scope="row"| RMW
| 3 || 7 || <code>INC $4018,X</code> || Only doable when writing into the given address is harmless considering the possible values of X.
|-
! scope="row"| Absolute indirect
! scope="row"| Jump
| 3 || 5 || <code>JMP (@ptrtemp)</code> || Inferior to shorter alternatives.
|}


{{#css:
{{#css:
Line 71: Line 135:
=== 3 cycles ===
=== 3 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|1 bytes
|-
|<pre>48      PHA</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|2 bytes
!colspan="2"|2 bytes
|-
|-
|<pre>A5 00   LDA $00</pre>||Clobbers A, and Z&N
|<pre>C5 C5   CMP $C5</pre>||Clobbers Z&N, and C
|-
|<pre>A4 00    LDY $00</pre>||Clobbers Y, and Z&N
|-
|<pre>A6 00    LDX $00</pre>||Clobbers X, and Z&N
|-
|-
|<pre>C5 00   CMP $00</pre>||Clobbers Z&N, and C
|<pre>24 24   BIT $24</pre>||Clobbers Z&N, and V
|-
|-
|<pre>24 00   BIT $00</pre>||Clobbers Z&N, and V
|<pre>A5 A5   LDA $A5</pre>||Clobbers A, and Z&N
|-
|-
|<pre>85 xx   STA @zptemp</pre>||Requires @zptemp
|<pre>A6 A6   LDX $A6</pre>||Clobbers X, and Z&N
|-
|-
|<pre>04 00   NOP $00</pre>||Requires support for unofficial opcodes
|<pre>A4 A4   LDY $A4</pre>||Clobbers Y, and Z&N
|-
|-
!colspan="2"|3 bytes
!colspan="2"|3 bytes
|-
|-
|<pre>4C xx xx JMP *+3</pre>||Not relocatable code
|<pre>4C xx xx JMP *+3</pre>||No requirements
|-
|-
|}
|}
Line 101: Line 157:
=== 4 cycles ===
=== 4 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|1 bytes
|-
|<pre>68      PLA</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|2 bytes
!colspan="2"|2 bytes
|-
|-
|<pre>EA  ... NOP      &times; 2</pre>||No requirements
|<pre>EA  ... NOP      × 2</pre>||No requirements
|-
|-
|}
|}
* zp-indexed modes such as <code>LDA $00,X</code> also do 4 cycles, but having side effects, these two-byte instructions are inferior to a simple 2 &times; <code>NOP</code>.
* zp-indexed modes such as <code>LDA $00,X</code> also do 4 cycles, but having side effects, these two-byte instructions are inferior to a simple 2 × <code>NOP</code>.
* There is also an unofficial opcode <code>NOP $00,X</code> (34 00), but there is no reason to use this instruction when the official equivalent has the same performance.
* There is also an unofficial opcode <code>NOP $00,X</code> (34 00), but there is no reason to use this instruction when the official equivalent has the same performance.


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=== 5 cycles ===
=== 5 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|2 bytes
!colspan="2"|3 bytes
|-
|-
|<pre>E6 xx   INC @zptemp</pre>||Clobbers Z&N; and requires @zptemp
|<pre>18      CLC
90 00   BCC *+2</pre>||Clobbers C
|-
|-
|<pre>EA       NOP
|<pre>B8       CLV
48      PHA</pre>||Clobbers S; and writes in stack
50 00    BVC *+2</pre>||Clobbers V
|-
!colspan="2"|3 bytes
|-
|<pre>EA      NOP
A5 00    LDA $00</pre>||Clobbers A, and Z&N
|-
|<pre>EA      NOP
A6 00    LDX $00</pre>||Clobbers X, and Z&N
|-
|-
|<pre>EA      NOP
|<pre>EA      NOP
A4 00   LDY $00</pre>||Clobbers Y, and Z&N
A5 A5   LDA $A5</pre>||Clobbers A, and Z&N
|-
|<pre>18      CLC
90 00    BCC *+2</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2</pre>||Clobbers V
|-
|-
|<pre>EA      NOP
|<pre>EA      NOP
85 xx   STA @zptemp</pre>||Requires @zptemp
A6 A6   LDX $A6</pre>||Clobbers X, and Z&N
|-
|-
|<pre>EA      NOP
|<pre>EA      NOP
04 00   NOP $00</pre>||Requires support for unofficial opcodes
A4 A4   LDY $A4</pre>||Clobbers Y, and Z&N
|-
|-
!colspan="2"|4 bytes
!colspan="2"|4 bytes
|-
|-
|<pre>EA      NOP
|<pre>EA      NOP
4C xx xx JMP *+3</pre>||Not relocatable code
4C xx xx JMP *+3</pre>||No requirements
|-
|-
|}
|}
Line 157: Line 196:
=== 6 cycles ===
=== 6 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|2 bytes
|-
|<pre>48  ... PHA      &times; 2</pre>||Clobbers S; and writes in stack
|-
|<pre>EA      NOP
68      PLA</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|3 bytes
!colspan="2"|3 bytes
|-
|-
|<pre>EA  ... NOP      &times; 3</pre>||No requirements
|<pre>EA  ... NOP      × 3</pre>||No requirements
|-
|-
|}
|}
* zp-indexed RMW instructions such as <code>INC @zptemp,X</code> do 6 cycles, but as the memory address modified depends on the value of X, and in this document it is a bit difficult to formalize the rules under which you can write to such addresses, thus the instruction is not used.
* zp-indexed RMW instructions such as <code>INC @zptemp,X</code> do 6 cycles. Unless we know the value of X, it might write into any address between $00-$FF. This option is only useful if the entire range of $00-$FF is free for clobbering with random data, or if X has a known value.
* ix and iy instructions such as <code>LDA ($00,X)</code> or <code>LDA ($00),Y</code> do 6 cycles, but there may be side effects for reading from random memory addresses (such as $2002), and therefore we do not do that. With ind-y there is also the trouble of predicting whether a wrap occurs or not.
* ix instructions like <code>LDA ($00,X)</code> do 6 cycles, but the value of X decides where a pointer is read from, and said pointer can point anywhere. We only do that when the value of X is known.
* Absolute RMW instructions like <code>INC $2000</code> do 6 cycles, but weighing 3 bytes with side-effects it would be inferior to 3 &times; <code>NOP</code>.
* iy instructions like <code>LDA ($00),Y</code> also do 5-6 cycles, but in addition to the note above, we cannot predict whether a wrap occurs or not. So we don't use this mode.
* Absolute RMW instructions like <code>INC $4018</code> do 6 cycles, but weighing 3 bytes with side-effects it would be inferior to 3 × <code>NOP</code>.




Line 179: Line 212:
|-
|-
|<pre>08      PHP
|<pre>08      PHP
28      PLP</pre>||Writes in stack
28      PLP</pre>||No requirements
|-
|<pre>68      PLA
48      PHA</pre>||Clobbers A, and Z&N
|-
!colspan="2"|3 bytes
|-
|<pre>EA      NOP
E6 xx    INC @zptemp</pre>||Clobbers Z&N; and requires @zptemp
|-
!colspan="2"|4 bytes
|-
|<pre>A6 00    LDX $00
EA  ... NOP      &times; 2</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
EA  ... NOP      &times; 2</pre>||Clobbers Y, and Z&N
|-
|<pre>18  ... CLC      &times; 2
90 00    BCC *+2</pre>||Clobbers C
|-
|<pre>B8  ... CLV      &times; 2
50 00    BVC *+2</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 2</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 2</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|5 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 2</pre>||Not relocatable code
|-
|-
|}
|}
* <code>PHP-PLP</code> is very efficient for 7 cycles of delay, but it does modify stack contents. S register remains unchanged though.
* <code>PHP-PLP</code> is very efficient for 7 cycles of delay, but it does modify stack contents. S register remains unchanged though.
* <code>PLA-PHA</code> does not overwrite any bytes in stack. It just writes back the same byte. But it does clobber A and Z+N.
* <code>PLA-PHA</code> does not overwrite any bytes in stack. It just writes back the same byte. But it does clobber A and Z+N. It is not interrupt-unsafe either: If an interrupt happens, the stack byte does get temporarily clobbered, but the value is still in A when the interrupt exits, and gets written back in stack.
* abs-indexed RMW instructions such as <code>INC abs,X</code> do 7 cycles, but it is difficult to formalize the rules under which one could write to such random addresses.
* abs-indexed RMW instructions such as <code>INC abs,X</code> do 7 cycles. We only do this when either we know the value of X (for instance, <code>INC $4018,X</code> is safe when X is 0&mdash;7</code>, or when the entire 256-byte page can be safely overwritten with random data.




=== 8 cycles ===
=== 8 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|2 bytes
|-
|<pre>68  ... PLA      &times; 2</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|3 bytes
|-
|<pre>BA      TSX
68      PLA
9A      TXS</pre>||Clobbers A, X, and Z&N
|-
|<pre>EA      NOP
48  ... PHA      &times; 2</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|4 bytes
!colspan="2"|4 bytes
|-
|-
|<pre>EA  ... NOP      &times; 4</pre>||No requirements
|<pre>EA  ... NOP      × 4</pre>||No requirements
|-
|-
|}
|}
* ix and iy RMW instructions such as <code>SLO ($00,X)</code> or <code>SLO ($00),Y</code> would do 8 cycles for 2 bytes of code, but it is dangerous to read random memory addresses, let alone write to them, so we do not do that. These instructions are also unofficial.
* Unofficial ix and iy RMW instructions such as <code>SLO ($00,X)</code> or <code>SLO ($00),Y</code> would do 8 cycles for 2 bytes of code. We only do that if we know X or Y to be zero, and we have a known pointer to safely rewritable data.




Line 249: Line 236:
|<pre>EA      NOP
|<pre>EA      NOP
08      PHP
08      PHP
28      PLP</pre>||Writes in stack
28      PLP</pre>||No requirements
|-
|-
|<pre>EA       NOP
|}
68      PLA
* Jumping into the middle of another instruction and thereby reusing code is a very efficient way of reducing code size. Note that all code samples using branches on this page require that no page wrap occurs.
48       PHA</pre>||Clobbers A, and Z&N
 
 
=== 10 cycles ===
{| class="wikitable testtable"
!colspan="2"|4 bytes
|-
|<pre>08       PHP
C5 C5    CMP $C5
28       PLP</pre>||No requirements
|-
|-
|}
* The <code>ROL-ROR</code> sequence preserves the original value of the memory address. Carry is also preserved.
=== 11 cycles ===
{| class="wikitable testtable"
!colspan="2"|4 bytes
!colspan="2"|4 bytes
|-
|-
|<pre>A0 AC    LDY #$AC  ;hides 'LDY $FDD0'
|<pre>EA  ... NOP      × 2
D0 FD    BNE *-1</pre>||Clobbers Y, and Z&N
08       PHP
|-
28       PLP</pre>||No requirements
|<pre>A2 AE    LDX #$AE  ;hides 'LDX $FDD0'
D0 FD    BNE *-1</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
E6 xx    INC @zptemp</pre>||Clobbers Z&N; and requires @zptemp
|-
!colspan="2"|5 bytes
|-
|<pre>EA  ... NOP      &times; 2
18       CLC
90 00    BCC *+2</pre>||Clobbers C
|-
|<pre>EA  ... NOP      &times; 2
B8       CLV
50 00    BVC *+2</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 3</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 3</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|6 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 3</pre>||Not relocatable code
|-
|-
|}
|}
* Jumping into the middle of another instruction is a very efficient way of reducing code size. Note that all code samples using branches on this page require that no page wrap occurs.




=== 10 cycles ===
=== 12 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|3 bytes
!colspan="2"|3 bytes
|-
|-
|<pre>48      PHA
|<pre>20 xx xx JSR @rts12</pre>||Requires @rts12
08      PHP
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>EA      NOP
68  ... PLA      &times; 2</pre>||Clobbers A, S, and Z&N
|-
|-
!colspan="2"|4 bytes
!colspan="2"|4 bytes
|-
|-
|<pre>08      PHP
|<pre>36 36   ROL $36,X
24 00    BIT $00
76 36   ROR $36,X</pre>||Clobbers Z&N
28      PLP</pre>||Writes in stack
|-
|<pre>26 00   ROL $00
66 00   ROR $00</pre>||Clobbers Z&N
|-
|-
!colspan="2"|5 bytes
!colspan="2"|5 bytes
|-
|-
|<pre>EA  ... NOP      &times; 5</pre>||No requirements
|<pre>08      PHP
18      CLC
90 00    BCC *+2
28      PLP</pre>||No requirements
|-
|-
|}
|}
* Note that the <code>ROL-ROR</code> sequence preserves the original value of the memory address. Carry is also preserved.
* <code>JSR-RTS</code> causes 12 cycles of delay. But it does write a function return address in the stack, which may be unwanted in some applications. S is not modified.
* Again, <code>ROL-ROR</code> does not have side effects (as long as an interrupt does not happen in the middle), except for Z+N.




=== 11 cycles ===
=== 13 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|3 bytes
!colspan="2"|5 bytes
|-
|-
|<pre>68   ... PLA     &times; 2
|<pre>EA   ... NOP     × 3
48       PHA</pre>||Clobbers A, S, and Z&N
08       PHP
28      PLP</pre>||No requirements
|-
|-
|}
=== 14 cycles ===
{| class="wikitable testtable"
!colspan="2"|4 bytes
!colspan="2"|4 bytes
|-
|-
|<pre>EA  ... NOP      &times; 2
|<pre>08      PHP       \ × 2
08      PHP
28      PLP       /</pre>||No requirements
28      PLP</pre>||Writes in stack
|-
|<pre>EA  ... NOP      &times; 2
68      PLA
48      PHA</pre>||Clobbers A, and Z&N
|-
|-
|}
=== 15 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
!colspan="2"|5 bytes
|-
|-
|<pre>A2 02    LDX #2
|<pre>08      PHP
CA       DEX
BA      TSX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
28      PLP
9A       TXS
28      PLP</pre>||Clobbers X
|-
|-
|<pre>A0 02   LDY #2
|<pre>C5 C5   CMP $C5
88      DEY
20 xx xx JSR @rts12</pre>||Clobbers Z&N, and C; and requires @rts12
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>E6 xx   INC @zptemp
|<pre>24 24    BIT $24
EA  ... NOP      &times; 3</pre>||Clobbers Z&N; and requires @zptemp
20 xx xx JSR @rts12</pre>||Clobbers Z&N, and V; and requires @rts12
|-
|-
!colspan="2"|6 bytes
|<pre>A5 A5    LDA $A5
20 xx xx JSR @rts12</pre>||Clobbers A, and Z&N; and requires @rts12
|-
|-
|<pre>18      CLC
|<pre>A4 A4   LDY $A4
90 00   BCC *+2
20 xx xx JSR @rts12</pre>||Clobbers Y, and Z&N; and requires @rts12
EA  ... NOP      &times; 3</pre>||Clobbers C
|-
|-
|<pre>B8      CLV
!colspan="2"|6 bytes
50 00    BVC *+2
EA  ... NOP      &times; 3</pre>||Clobbers V
|-
|-
|<pre>85 xx    STA @zptemp
|<pre>08      PHP
EA  ... NOP      &times; 4</pre>||Requires @zptemp
28      PLP
EA  ... NOP      × 4</pre>||No requirements
|-
|-
|<pre>04 00    NOP $00
|}
EA  ... NOP      &times; 4</pre>||Requires support for unofficial opcodes
 
 
=== 16 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|-
!colspan="2"|7 bytes
|<pre>EA       NOP
|-
08      PHP      \ × 2
|<pre>4C xx xx JMP *+3
28      PLP      /</pre>||No requirements
EA   ... NOP     &times; 4</pre>||Not relocatable code
|-
|-
|}
|}




=== 12 cycles ===
=== 17 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|3 bytes
!colspan="2"|6 bytes
|-
|-
|<pre>20 xx xx JSR @rts12</pre>||Requires @rts12; and writes in stack
|<pre>08      PHP
48      PHA
A5 A5    LDA $A5
68      PLA
28      PLP</pre>||No requirements
|-
|-
|<pre>68  ... PLA      &times; 3</pre>||Clobbers A, S, and Z&N
|}
 
 
=== 18 cycles ===
{| class="wikitable testtable"
!colspan="2"|6 bytes
|-
|-
!colspan="2"|4 bytes
|<pre>EA  ... NOP      × 2
|-
08      PHP       \ × 2
|<pre>36 00    ROL $00,X
28      PLP       /</pre>||No requirements
76 00    ROR $00,X</pre>||Clobbers Z&N
|-
|<pre>08      PHP
E6 xx    INC @zptemp
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>48  ... PHA      &times; 4</pre>||Clobbers S; and writes in stack
|-
|-
|}
=== 19 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
!colspan="2"|5 bytes
|-
|-
|<pre>08      PHP
|<pre>08      PHP
18      CLC
28      PLP
90 00    BCC *+2
20 xx xx JSR @rts12</pre>||Requires @rts12
28      PLP</pre>||Writes in stack
|-
|-
!colspan="2"|6 bytes
!colspan="2"|6 bytes
|-
|-
|<pre>EA  ... NOP      &times; 6</pre>||No requirements
|<pre>08      PHP
36 36    ROL $36,X
76 36    ROR $36,X
28      PLP</pre>||No requirements
|-
|-
|}
|}
* <code>JSR-RTS</code> causes 12 cycles of delay. But it does write a function return address in the stack, which may be unwanted in some applications. S is not modified.
* Again, <code>ROL-ROR</code> does not have side effects (as long as an interrupt does not happen in the middle), except for Z+N.




=== 13 cycles ===
=== 20 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|2 bytes
!colspan="2"|5 bytes
|-
|-
|<pre>00 00   BRK 0</pre>||Requires dummy interrupt handler; and writes in stack
|<pre>A9 2A   LDA #$2A ;hides 'ROL A'
38      SEC
10 FC    BPL *-2</pre>||Clobbers A, Z&N, and C
|-
|-
!colspan="2"|4 bytes
!colspan="2"|7 bytes
|-
|-
|<pre>48   ... PHA     &times; 2
|<pre>EA   ... NOP     × 3
08      PHP
08      PHP       \ × 2
28      PLP</pre>||Clobbers S; and writes in stack
28      PLP       /</pre>||No requirements
|-
|<pre>EA      NOP
68  ... PLA      &times; 2
48      PHA</pre>||Clobbers A, S, and Z&N
|-
|-
|}
=== 21 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
!colspan="2"|5 bytes
|-
|-
|<pre>EA  ... NOP      &times; 3
|<pre>18      CLC
08      PHP
A9 2A    LDA #$2A ;hides 'ROL A'
28      PLP</pre>||Writes in stack
90 FD    BCC *-1</pre>||Clobbers A, Z&N, and C
|-
|-
|<pre>EA  ... NOP      &times; 3
|<pre>A2 04    LDX #4
68       PLA
CA      DEX
48      PHA</pre>||Clobbers A, and Z&N
D0 FD    BNE *-1</pre>||Clobbers X, and Z&N
|-
|<pre>A0 04    LDY #4
88       DEY
D0 FD    BNE *-1</pre>||Clobbers Y, and Z&N
|-
|-
!colspan="2"|6 bytes
!colspan="2"|6 bytes
|-
|-
|<pre>A6 00    LDX $00
|<pre>08      PHP      \ × 3
26 00    ROL $00
28      PLP      /</pre>||No requirements
66 00    ROR $00</pre>||Clobbers X, and Z&N
|-
|-
|<pre>A4 00    LDY $00
|}
26 00    ROL $00
 
66 00    ROR $00</pre>||Clobbers Y, and Z&N
 
=== 22 cycles ===
{| class="wikitable testtable"
!colspan="2"|6 bytes
|-
|-
|<pre>C5 00   CMP $00
|<pre>18      CLC
26 00    ROL $00
A9 2A   LDA #$2A ;hides 'ROL A'
66 00   ROR $00</pre>||Clobbers Z&N, and C
38      SEC
10 FC   BPL *-2</pre>||Clobbers A, Z&N, and C
|-
|-
|<pre>24 00   BIT $00
|<pre>A2 02   LDX #2
26 00    ROL $00
EA      NOP
66 00   ROR $00</pre>||Clobbers Z&N, and V
CA      DEX
10 FC   BPL *-2</pre>||Clobbers X, and Z&N
|-
|-
|<pre>85 xx   STA @zptemp
|<pre>A0 03   LDY #3
26 00    ROL $00
EA      NOP
66 00    ROR $00</pre>||Clobbers Z&N; and requires @zptemp
88      DEY
|-
D0 FC   BNE *-2</pre>||Clobbers Y, and Z&N
|<pre>04 00    NOP $00
26 00    ROL $00
66 00   ROR $00</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
|-
!colspan="2"|7 bytes
!colspan="2"|7 bytes
|-
|-
|<pre>4C xx xx JMP *+3
|<pre>08      PHP
26 00    ROL $00
BA      TSX
66 00    ROR $00</pre>||Clobbers Z&N; and not relocatable code
08      PHP
28  ... PLP      × 2
9A      TXS
28      PLP</pre>||Clobbers X
|-
|-
|<pre>18       CLC
|<pre>08       PHP
90 00   BCC *+2
C5 C5   CMP $C5
EA  ... NOP      &times; 4</pre>||Clobbers C
28       PLP
|-
20 xx xx JSR @rts12</pre>||Requires @rts12
|<pre>B8       CLV
50 00    BVC *+2
EA  ... NOP      &times; 4</pre>||Clobbers V
|-
|<pre>85 xx   STA @zptemp
EA  ... NOP      &times; 5</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 5</pre>||Requires support for unofficial opcodes
|-
|-
!colspan="2"|8 bytes
!colspan="2"|8 bytes
|-
|-
|<pre>4C xx xx JMP *+3
|<pre>08      PHP      \ × 2
EA  ... NOP      &times; 5</pre>||Not relocatable code
28      PLP      /
EA  ... NOP      × 4</pre>||No requirements
|-
|-
|}
|}




=== 14 cycles ===
=== 23 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|3 bytes
!colspan="2"|6 bytes
|-
|-
|<pre>20 xx xx JSR @rts14</pre>||Requires @rts14; and writes in stack
|<pre>18  ... CLC      × 2
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1</pre>||Clobbers A, Z&N, and C
|-
|-
!colspan="2"|4 bytes
|<pre>EA       NOP
|-
A2 04    LDX #4
|<pre>08       PHP      \ &times; 2
CA       DEX
28       PLP      /</pre>||Writes in stack
D0 FD    BNE *-1</pre>||Clobbers X, and Z&N
|-
|<pre>68      PLA      \ &times; 2
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|5 bytes
|-
|-
|<pre>EA      NOP
|<pre>EA      NOP
36 00   ROL $00,X
A0 04   LDY #4
76 00   ROR $00,X</pre>||Clobbers Z&N
88      DEY
D0 FD   BNE *-1</pre>||Clobbers Y, and Z&N
|-
|-
!colspan="2"|7 bytes
!colspan="2"|7 bytes
|-
|-
|<pre>EA   ... NOP     &times; 7</pre>||No requirements
|<pre>EA       NOP
08      PHP      \ × 3
28      PLP      /</pre>||No requirements
|-
|-
|}
|}




=== 15 cycles ===
=== 24 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|3 bytes
!colspan="2"|4 bytes
|-
|-
|<pre>20 xx xx JSR @rts15</pre>||Requires @rts15; and writes in stack
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1</pre>||Clobbers A, Z&N, and C
|-
|-
|<pre>EA      NOP
!colspan="2"|6 bytes
00 00    BRK 0</pre>||Requires dummy interrupt handler; and writes in stack
|-
|-
!colspan="2"|4 bytes
|<pre>20 xx xx JSR @rts12× 2</pre>||Requires @rts12
|-
|-
|<pre>48      PHA
!colspan="2"|7 bytes
20 xx xx JSR @rts12</pre>||Clobbers S; requires @rts12; and writes in stack
|-
|-
|<pre>68      PLA
|<pre>A6 A6    LDX $A6
48       PHA
A2 04    LDX #4
68  ... PLA      &times; 2</pre>||Clobbers A, S, and Z&N
CA       DEX
D0 FD    BNE *-1</pre>||Clobbers X, and Z&N
|-
|-
!colspan="2"|5 bytes
|<pre>A4 A4    LDY $A4
A0 04    LDY #4
88      DEY
D0 FD    BNE *-1</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>A5 00    LDA $00
!colspan="2"|8 bytes
20 xx xx JSR @rts12</pre>||Clobbers A, and Z&N; requires @rts12; and writes in stack
|-
|<pre>48      PHA
BA      TSX
68      PLA
9A      TXS
68      PLA</pre>||Clobbers X, and Z&N; and writes in stack
|-
|<pre>A4 00    LDY $00
20 xx xx JSR @rts12</pre>||Clobbers Y, and Z&N; requires @rts12; and writes in stack
|-
|-
|<pre>08      PHP
|<pre>08      PHP
BA       TSX
C5 C5    CMP $C5
68       PLA
28      PLP       \ × 2
9A       TXS
08       PHP       /
28      PLP</pre>||Clobbers A, and X; and writes in stack
28      PLP</pre>||No requirements
|-
|-
|<pre>68      PLA
|}
48      PHA
 
BA      TSX
 
68      PLA
=== 25 cycles ===
9A      TXS</pre>||Clobbers A, X, and Z&N
{| class="wikitable testtable"
!colspan="2"|7 bytes
|-
|-
|<pre>C5 00   CMP $00
|<pre>98      TYA
20 xx xx JSR @rts12</pre>||Clobbers Z&N, and C; requires @rts12; and writes in stack
A0 04   LDY #4
88      DEY
D0 FD    BNE *-1
A8      TAY</pre>||Clobbers A, and Z&N
|-
|-
|<pre>24 00   BIT $00
|<pre>EA  ... NOP      × 2
20 xx xx JSR @rts12</pre>||Clobbers Z&N, and V; requires @rts12; and writes in stack
A2 04   LDX #4
CA      DEX
D0 FD    BNE *-1</pre>||Clobbers X, and Z&N
|-
|-
|<pre>85 xx   STA @zptemp
|<pre>EA  ... NOP      × 2
20 xx xx JSR @rts12</pre>||Requires @zptemp, and @rts12; and writes in stack
A0 04   LDY #4
88      DEY
D0 FD    BNE *-1</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>48  ... PHA      &times; 5</pre>||Clobbers S; and writes in stack
!colspan="2"|8 bytes
|-
|-
|<pre>04 00    NOP $00
|<pre>EA  ... NOP     × 2
20 xx xx JSR @rts12</pre>||Requires @rts12, and support for unofficial opcodes; and writes in stack
08      PHP      \ × 3
28      PLP      /</pre>||No requirements
|-
|-
!colspan="2"|6 bytes
|}
 
 
=== 26 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|-
|<pre>08       PHP
|<pre>18       CLC
28      PLP
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 4</pre>||Writes in stack
10 FD    BPL *-1</pre>||Clobbers A, Z&N, and C
|-
|-
|<pre>A5 00   LDA $00
|<pre>A2 04   LDX #4
36 00    ROL $00,X
CA      DEX
76 00   ROR $00,X</pre>||Clobbers A, and Z&N
10 FD   BPL *-1</pre>||Clobbers X, and Z&N
|-
|-
|<pre>A4 00   LDY $00
|<pre>A0 05   LDY #5
36 00    ROL $00,X
88      DEY
76 00   ROR $00,X</pre>||Clobbers Y, and Z&N
D0 FD   BNE *-1</pre>||Clobbers Y, and Z&N
|-
|<pre>A6 00    LDX $00
36 00    ROL $00,X
76 00    ROR $00,X</pre>||Clobbers X, and Z&N
|-
|<pre>C5 00    CMP $00
36 00    ROL $00,X
76 00    ROR $00,X</pre>||Clobbers Z&N, and C
|-
|<pre>24 00    BIT $00
36 00    ROL $00,X
76 00    ROR $00,X</pre>||Clobbers Z&N, and V
|-
|<pre>E6 xx    INC @zptemp
26 00    ROL $00
66 00    ROR $00</pre>||Clobbers Z&N; and requires @zptemp
|-
|<pre>04 00    NOP $00
36 00    ROL $00,X
76 00    ROR $00,X</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
|-
!colspan="2"|7 bytes
!colspan="2"|7 bytes
|-
|-
|<pre>4C xx xx JMP *+3
|<pre>EA      NOP
36 00    ROL $00,X
20 xx xx JSR @rts12× 2</pre>||Requires @rts12
76 00    ROR $00,X</pre>||Clobbers Z&N; and not relocatable code
|-
|-
!colspan="2"|8 bytes
!colspan="2"|8 bytes
|-
|-
|<pre>18       CLC
|<pre>08       PHP
90 00    BCC *+2
48       PHA
EA  ... NOP      &times; 5</pre>||Clobbers C
36 36   ROL $36,X
|-
76 36   ROR $36,X
|<pre>B8       CLV
68      PLA
50 00   BVC *+2
28      PLP</pre>||No requirements
EA  ... NOP      &times; 5</pre>||Clobbers V
|-
|<pre>85 xx   STA @zptemp
EA  ... NOP      &times; 6</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 6</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 6</pre>||Not relocatable code
|-
|-
|}
|}




=== 16 cycles ===
=== 27 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|3 bytes
!colspan="2"|6 bytes
|-
|-
|<pre>48      PHA
|<pre>A5 A5    LDA $A5
00 00   BRK 0</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD   BPL *-1</pre>||Clobbers A, Z&N, and C
|-
|-
!colspan="2"|4 bytes
!colspan="2"|7 bytes
|-
|-
|<pre>EA       NOP
|<pre>48       PHA
20 xx xx JSR @rts14</pre>||Requires @rts14; and writes in stack
A9 2A    LDA #$2A ;hides 'ROL A'
38      SEC
10 FC    BPL *-2
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
|<pre>A5 00   LDA $00
|<pre>08      PHP
00 00   BRK 0</pre>||Clobbers A, and Z&N; requires dummy interrupt handler; and writes in stack
A9 2A   LDA #$2A ;hides 'ROL A'
38      SEC
10 FC   BPL *-2
28      PLP</pre>||Clobbers A
|-
|-
|<pre>A6 00   LDX $00
|<pre>24 2C    BIT <$2C ;hides 'BIT $FDA2'
00 00   BRK 0</pre>||Clobbers X, and Z&N; requires dummy interrupt handler; and writes in stack
A2 FD   LDX #253
E8      INX
D0 FA   BNE *-4</pre>||Clobbers X, Z&N, and V
|-
|-
|<pre>A4 00   LDY $00
|<pre>24 2C    BIT <$2C ;hides 'BIT $FDA0'
00 00   BRK 0</pre>||Clobbers Y, and Z&N; requires dummy interrupt handler; and writes in stack
A0 FD   LDY #253
C8      INY
D0 FA   BNE *-4</pre>||Clobbers Y, Z&N, and V
|-
|-
|<pre>C5 00   CMP $00
|<pre>A4 AC   LDY <$AC ;hides 'LDY $82A2'
00 00   BRK 0</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
A2 82   LDX #130
CA      DEX
30 FA    BMI *-4</pre>||Clobbers X, Y, and Z&N
|-
|-
|<pre>24 00    BIT $00
!colspan="2"|8 bytes
00 00    BRK 0</pre>||Clobbers Z&N, and V; requires dummy interrupt handler; and writes in stack
|-
|-
|<pre>85 xx    STA @zptemp
|<pre>EA   ... NOP     × 3
00 00    BRK 0</pre>||Requires @zptemp, and dummy interrupt handler; and writes in stack
A2 04    LDX #4
|-
|<pre>68   ... PLA     &times; 4</pre>||Clobbers A, S, and Z&N
|-
|<pre>04 00    NOP $00
00 00    BRK 0</pre>||Requires dummy interrupt handler, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|5 bytes
|-
|<pre>EA      NOP
08      PHP      \ &times; 2
28      PLP      /</pre>||Writes in stack
|-
|<pre>EA      NOP
68      PLA      \ &times; 2
48      PHA      /</pre>||Clobbers A, and Z&N
|-
|<pre>A2 03   LDX #3
CA      DEX
CA      DEX
D0 FB   BNE *-3</pre>||Clobbers X, and Z&N
D0 FD   BNE *-1</pre>||Clobbers X, and Z&N
|-
|-
|<pre>A0 03   LDY #3
|<pre>EA  ... NOP      × 3
A0 04   LDY #4
88      DEY
88      DEY
D0 FB   BNE *-3</pre>||Clobbers Y, and Z&N
D0 FD   BNE *-1</pre>||Clobbers Y, and Z&N
|-
|-
!colspan="2"|6 bytes
|<pre>24 24    BIT $24
20 xx xx JSR @rts12× 2</pre>||Clobbers Z&N, and V; and requires @rts12
|-
|-
|<pre>EA  ... NOP      &times; 2
|<pre>20 xx xx JSR @rts12
36 00    ROL $00,X
08      PHP
76 00    ROR $00,X</pre>||Clobbers Z&N
BA      TSX
28      PLP
9A      TXS
28      PLP</pre>||Clobbers X; and requires @rts12
|-
|-
!colspan="2"|8 bytes
!colspan="2"|9 bytes
|-
|-
|<pre>EA  ... NOP      &times; 8</pre>||No requirements
|<pre>EA  ... NOP      × 3
08      PHP      \ × 3
28      PLP      /</pre>||No requirements
|-
|-
|}
|}




=== 17 cycles ===
=== 28 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|3 bytes
!colspan="2"|6 bytes
|-
|-
|<pre>68      PLA
|<pre>38  ... SEC      × 2
00 00   BRK 0</pre>||Clobbers A, S, and Z&N; requires dummy interrupt handler; and writes in stack
A9 0A   LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1</pre>||Clobbers A, Z&N, and C
|-
|-
!colspan="2"|4 bytes
|<pre>EA      NOP
A2 04    LDX #4
CA      DEX
10 FD    BPL *-1</pre>||Clobbers X, and Z&N
|-
|-
|<pre>EA      NOP
|<pre>EA      NOP
20 xx xx JSR @rts15</pre>||Requires @rts15; and writes in stack
A0 05    LDY #5
88      DEY
D0 FD    BNE *-1</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>EA  ... NOP      &times; 2
!colspan="2"|7 bytes
00 00    BRK 0</pre>||Requires dummy interrupt handler; and writes in stack
|-
|-
|<pre>48      PHA
|<pre>48      PHA
20 xx xx JSR @rts14</pre>||Clobbers S; requires @rts14; and writes in stack
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
!colspan="2"|5 bytes
|<pre>08      PHP
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
28      PLP</pre>||Clobbers A
|-
|-
|<pre>A5 00   LDA $00
|<pre>08      PHP
20 xx xx JSR @rts14</pre>||Clobbers A, and Z&N; requires @rts14; and writes in stack
A2 04    LDX #4
CA      DEX
D0 FD   BNE *-1
28      PLP</pre>||Clobbers X
|-
|-
|<pre>A6 00   LDX $00
|<pre>08      PHP
20 xx xx JSR @rts14</pre>||Clobbers X, and Z&N; requires @rts14; and writes in stack
A0 04    LDY #4
88      DEY
D0 FD   BNE *-1
28      PLP</pre>||Clobbers Y
|-
|-
|<pre>A4 00    LDY $00
!colspan="2"|8 bytes
20 xx xx JSR @rts14</pre>||Clobbers Y, and Z&N; requires @rts14; and writes in stack
|-
|-
|<pre>C5 00    CMP $00
|<pre>08      PHP      \ × 4
20 xx xx JSR @rts14</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
28      PLP      /</pre>||No requirements
|-
|-
|<pre>24 00    BIT $00
|}
20 xx xx JSR @rts14</pre>||Clobbers Z&N, and V; requires @rts14; and writes in stack
 
 
=== 29 cycles ===
{| class="wikitable testtable"
!colspan="2"|6 bytes
|-
|-
|<pre>E6 xx   INC @zptemp
|<pre>18      CLC
20 xx xx JSR @rts12</pre>||Clobbers Z&N; requires @zptemp, and @rts12; and writes in stack
A9 2A   LDA #$2A ;hides 'ROL A'
EA      NOP
90 FC    BCC *-2</pre>||Clobbers A, Z&N, and C
|-
|-
|<pre>85 xx   STA @zptemp
|<pre>A2 04   LDX #4
20 xx xx JSR @rts14</pre>||Requires @zptemp, and @rts14; and writes in stack
EA      NOP
CA      DEX
D0 FC    BNE *-2</pre>||Clobbers X, and Z&N
|-
|-
|<pre>48       PHA
|<pre>A0 04    LDY #4
08       PHP      \ &times; 2
EA       NOP
28      PLP      /</pre>||Clobbers S; and writes in stack
88       DEY
D0 FC    BNE *-2</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>EA      NOP
!colspan="2"|8 bytes
68      PLA
48      PHA
68  ... PLA      &times; 2</pre>||Clobbers A, S, and Z&N
|-
|-
|<pre>04 00   NOP $00
|<pre>48      PHA
20 xx xx JSR @rts14</pre>||Requires @rts14, and support for unofficial opcodes; and writes in stack
18      CLC
A9 2A   LDA #$2A ;hides 'ROL A'
38      SEC
10 FC    BPL *-2
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
!colspan="2"|6 bytes
|<pre>08      PHP
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
38      SEC
10 FC    BPL *-2
28      PLP</pre>||Clobbers A
|-
|-
|<pre>08      PHP
|<pre>08      PHP
26 00   ROL $00
A2 02   LDX #2
66 00   ROR $00
EA      NOP
28      PLP</pre>||Writes in stack
CA      DEX
10 FC   BPL *-2
28      PLP</pre>||Clobbers X
|-
|-
|<pre>68       PLA
|<pre>08       PHP
48      PHA
A0 03   LDY #3
26 00    ROL $00
EA      NOP
66 00    ROR $00</pre>||Clobbers A, and Z&N
88       DEY
|-
D0 FC   BNE *-2
|<pre>E6 xx    INC @zptemp
28       PLP</pre>||Clobbers Y
36 00    ROL $00,X
76 00    ROR $00,X</pre>||Clobbers Z&N; and requires @zptemp
|-
!colspan="2"|7 bytes
|-
|<pre>EA      NOP
A4 00   LDY $00
36 00    ROL $00,X
76 00    ROR $00,X</pre>||Clobbers Y, and Z&N
|-
|<pre>EA      NOP
A6 00    LDX $00
36 00    ROL $00,X
76 00    ROR $00,X</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
C5 00    CMP $00
36 00    ROL $00,X
76 00    ROR $00,X</pre>||Clobbers Z&N, and C
|-
|<pre>EA       NOP
24 00   BIT $00
36 00    ROL $00,X
76 00    ROR $00,X</pre>||Clobbers Z&N, and V
|-
|<pre>EA      NOP
04 00    NOP $00
36 00    ROL $00,X
76 00    ROR $00,X</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|8 bytes
|-
|<pre>EA       NOP
4C xx xx JMP *+3
36 00    ROL $00,X
76 00    ROR $00,X</pre>||Clobbers Z&N; and not relocatable code
|-
|-
!colspan="2"|9 bytes
!colspan="2"|9 bytes
|-
|-
|<pre>18       CLC
|<pre>08       PHP
90 00    BCC *+2
28      PLP
EA  ... NOP      &times; 6</pre>||Clobbers C
08       PHP
|-
C5 C5   CMP $C5
|<pre>B8       CLV
28      PLP
50 00   BVC *+2
20 xx xx JSR @rts12</pre>||Requires @rts12
EA  ... NOP      &times; 6</pre>||Clobbers V
|-
|<pre>85 xx   STA @zptemp
EA  ... NOP      &times; 7</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 7</pre>||Requires support for unofficial opcodes
|-
|-
!colspan="2"|10 bytes
!colspan="2"|10 bytes
|-
|-
|<pre>4C xx xx JMP *+3
|<pre>08      PHP
EA  ... NOP      &times; 7</pre>||Not relocatable code
C5 C5    CMP $C5
28      PLP
08      PHP
36 36    ROL $36,X
76 36    ROR $36,X
28      PLP</pre>||No requirements
|-
|-
|}
|}




=== 18 cycles ===
=== 30 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|4 bytes
!colspan="2"|7 bytes
|-
|-
|<pre>E6 xx   INC @zptemp
|<pre>98      TYA
00 00   BRK 0</pre>||Clobbers Z&N; requires @zptemp, and dummy interrupt handler; and writes in stack
A0 05   LDY #5
88      DEY
D0 FD   BNE *-1
A8      TAY</pre>||Clobbers A, and Z&N
|-
|-
|<pre>48       PHA
|<pre>EA  ... NOP      × 2
20 xx xx JSR @rts15</pre>||Clobbers S; requires @rts15; and writes in stack
A2 04    LDX #4
CA       DEX
10 FD    BPL *-1</pre>||Clobbers X, and Z&N
|-
|-
|<pre>68       PLA
|<pre>EA  ... NOP      × 2
20 xx xx JSR @rts14</pre>||Clobbers A, S, and Z&N; requires @rts14; and writes in stack
A0 05    LDY #5
88       DEY
D0 FD    BNE *-1</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>EA      NOP
!colspan="2"|8 bytes
48      PHA
00 00    BRK 0</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
|-
!colspan="2"|5 bytes
|<pre>48      PHA
18  ... CLC      × 2
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
|<pre>A5 00   LDA $00
|<pre>08      PHP
20 xx xx JSR @rts15</pre>||Clobbers A, and Z&N; requires @rts15; and writes in stack
18  ... CLC      × 2
A9 2A   LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
28      PLP</pre>||Clobbers A
|-
|-
|<pre>A4 00   LDY $00
|<pre>EA      NOP
20 xx xx JSR @rts15</pre>||Clobbers Y, and Z&N; requires @rts15; and writes in stack
08      PHP
|-
A2 04   LDX #4
|<pre>A6 00    LDX $00
CA      DEX
20 xx xx JSR @rts15</pre>||Clobbers X, and Z&N; requires @rts15; and writes in stack
D0 FD    BNE *-1
28      PLP</pre>||Clobbers X
|-
|-
|<pre>C5 00   CMP $00
|<pre>EA      NOP
20 xx xx JSR @rts15</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
08      PHP
A0 04    LDY #4
88      DEY
D0 FD   BNE *-1
28      PLP</pre>||Clobbers Y
|-
|-
|<pre>24 00    BIT $00
!colspan="2"|9 bytes
20 xx xx JSR @rts15</pre>||Clobbers Z&N, and V; requires @rts15; and writes in stack
|-
|-
|<pre>EA  ... NOP      &times; 2
|<pre>08      PHP
20 xx xx JSR @rts14</pre>||Requires @rts14; and writes in stack
48      PHA
18      CLC
A9 6A    LDA #$6A ;hides 'ROR A'
90 FD    BCC *-1
68      PLA
28      PLP</pre>||No requirements
|-
|-
|<pre>85 xx    STA @zptemp
|}
20 xx xx JSR @rts15</pre>||Requires @zptemp, and @rts15; and writes in stack
 
 
=== 31 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|-
|<pre>EA       NOP
|<pre>18       CLC
A5 00   LDA $00
A9 0A   LDA #$0A ;hides 'ASL A'
00 00   BRK 0</pre>||Clobbers A, and Z&N; requires dummy interrupt handler; and writes in stack
90 FD   BCC *-1</pre>||Clobbers A, Z&N, and C
|-
|-
|<pre>EA      NOP
|<pre>A2 05   LDX #5
A6 00   LDX $00
CA      DEX
00 00   BRK 0</pre>||Clobbers X, and Z&N; requires dummy interrupt handler; and writes in stack
10 FD   BPL *-1</pre>||Clobbers X, and Z&N
|-
|-
|<pre>EA      NOP
|<pre>A0 06   LDY #6
A4 00   LDY $00
88      DEY
00 00   BRK 0</pre>||Clobbers Y, and Z&N; requires dummy interrupt handler; and writes in stack
D0 FD   BNE *-1</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>18      CLC
!colspan="2"|6 bytes
90 00    BCC *+2
00 00    BRK 0</pre>||Clobbers C; requires dummy interrupt handler; and writes in stack
|-
|-
|<pre>B8       CLV
|<pre>48       PHA
50 00   BVC *+2
A9 0A   LDA #$0A ;hides 'ASL A'
00 00    BRK 0</pre>||Clobbers V; requires dummy interrupt handler; and writes in stack
10 FD    BPL *-1
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
|<pre>EA       NOP
|<pre>08       PHP
85 xx   STA @zptemp
A9 0A   LDA #$0A ;hides 'ASL A'
00 00   BRK 0</pre>||Requires @zptemp, and dummy interrupt handler; and writes in stack
10 FD   BPL *-1
28      PLP</pre>||Clobbers A
|-
|-
|<pre>48  ... PHA      &times; 2
!colspan="2"|8 bytes
20 xx xx JSR @rts12</pre>||Clobbers S; requires @rts12; and writes in stack
|-
|-
|<pre>EA       NOP
|<pre>08       PHP
68  ... PLA      &times; 4</pre>||Clobbers A, S, and Z&N
28      PLP
20 xx xx JSR @rts12× 2</pre>||Requires @rts12
|-
|-
|<pre>04 00    NOP $00
!colspan="2"|9 bytes
20 xx xx JSR @rts15</pre>||Requires @rts15, and support for unofficial opcodes; and writes in stack
|-
|-
|<pre>EA       NOP
|<pre>08       PHP
04 00   NOP $00
A6 A6    LDX $A6
00 00   BRK 0</pre>||Requires dummy interrupt handler, and support for unofficial opcodes; and writes in stack
A2 04    LDX #4
CA      DEX
D0 FD   BNE *-1
28      PLP</pre>||Clobbers X
|-
|-
|<pre>A9       LDA #0
|<pre>08       PHP
20 xx xx JSR delay_256a_16_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks, and delay_256a_16_clocks
A4 A4    LDY $A4
A0 04    LDY #4
88      DEY
D0 FD    BNE *-1
28      PLP</pre>||Clobbers Y
|-
|-
!colspan="2"|6 bytes
!colspan="2"|10 bytes
|-
|-
|<pre>EA  ... NOP      &times; 2
|<pre>08      PHP
08      PHP       \ &times; 2
36 36    ROL $36,X \ × 2
28      PLP       /</pre>||Writes in stack
76 36    ROR $36,X /
28      PLP</pre>||No requirements
|-
|-
|<pre>EA  ... NOP      &times; 2
|}
68      PLA      \ &times; 2
 
48      PHA      /</pre>||Clobbers A, and Z&N
 
|-
=== 32 cycles ===
|<pre>EA      NOP
{| class="wikitable testtable"
A0 03    LDY #3
!colspan="2"|6 bytes
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>EA      NOP
|<pre>A2 05   LDX #5 ;hides 'ORA zp'
A2 03   LDX #3
CA      DEX ;first loop only
CA      DEX
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
D0 FB    BNE *-3</pre>||Clobbers A, X, and Z&N
|-
|<pre>A0 05    LDY #5 ;hides 'ORA zp'
88      DEY ;first loop only
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, and Z&N
|-
|-
!colspan="2"|7 bytes
!colspan="2"|7 bytes
|-
|-
|<pre>EA  ... NOP      &times; 3
|<pre>A9 2A    LDA #$2A ;hides 'ROL A'
36 00    ROL $00,X
EA  ... NOP      × 3
76 00   ROR $00,X</pre>||Clobbers Z&N
10 FA   BPL *-4</pre>||Clobbers A, Z&N, and C
|-
|-
!colspan="2"|9 bytes
!colspan="2"|8 bytes
|-
|-
|<pre>EA   ... NOP     &times; 9</pre>||No requirements
|<pre>EA       NOP
98      TYA
A0 05    LDY #5
88      DEY
D0 FD    BNE *-1
A8      TAY</pre>||Clobbers A, and Z&N
|-
|-
|}
|<pre>A6 A6    LDX $A6
 
A2 04    LDX #4
 
EA      NOP
=== 19 cycles ===
CA      DEX
{| class="wikitable testtable"
D0 FC    BNE *-2</pre>||Clobbers X, and Z&N
!colspan="2"|4 bytes
|-
|-
|<pre>68       PLA
|<pre>A4 A4    LDY $A4
20 xx xx JSR @rts15</pre>||Clobbers A, S, and Z&N; requires @rts15; and writes in stack
A0 04    LDY #4
EA      NOP
88       DEY
D0 FC    BNE *-2</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>48  ... PHA      &times; 2
!colspan="2"|9 bytes
00 00    BRK 0</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
|-
!colspan="2"|5 bytes
|<pre>48      PHA
98      TYA
A0 04    LDY #4
88      DEY
D0 FD    BNE *-1
A8      TAY
68      PLA</pre>||Clobbers Z&N
|-
|-
|<pre>08      PHP
|<pre>08      PHP
28      PLP
98      TYA
20 xx xx JSR @rts12</pre>||Requires @rts12; and writes in stack
A0 04    LDY #4
88      DEY
D0 FD    BNE *-1
A8      TAY
28      PLP</pre>||Clobbers A
|-
|-
|<pre>EA  ... NOP      &times; 2
|<pre>EA  ... NOP      × 2
20 xx xx JSR @rts15</pre>||Requires @rts15; and writes in stack
08      PHP
A2 04    LDX #4
CA      DEX
D0 FD    BNE *-1
28      PLP</pre>||Clobbers X
|-
|-
|<pre>EA  ... NOP      &times; 3
|<pre>EA  ... NOP      × 2
00 00   BRK 0</pre>||Requires dummy interrupt handler; and writes in stack
08      PHP
A0 04   LDY #4
88      DEY
D0 FD    BNE *-1
28      PLP</pre>||Clobbers Y
|-
|-
|<pre>E6 xx    INC @zptemp
!colspan="2"|10 bytes
20 xx xx JSR @rts14</pre>||Clobbers Z&N; requires @zptemp, and @rts14; and writes in stack
|-
|-
|<pre>68       PLA
|<pre>08       PHP
48      PHA
48      PHA
68   ... PLA     &times; 3</pre>||Clobbers A, S, and Z&N
18   ... CLC     × 2
|-
A9 6A    LDA #$6A ;hides 'ROR A'
|<pre>EA       NOP
90 FD    BCC *-1
48       PHA
68       PLA
20 xx xx JSR @rts14</pre>||Clobbers S; requires @rts14; and writes in stack
28       PLP</pre>||No requirements
|-
|-
|}
=== 33 cycles ===
{| class="wikitable testtable"
!colspan="2"|6 bytes
!colspan="2"|6 bytes
|-
|-
|<pre>08      PHP
|<pre>18  ... CLC      × 2
36 00   ROL $00,X
A9 0A   LDA #$0A ;hides 'ASL A'
76 00   ROR $00,X
90 FD   BCC *-1</pre>||Clobbers A, Z&N, and C
28      PLP</pre>||Writes in stack
|-
|-
|<pre>68       PLA
|<pre>EA       NOP
48       PHA
A2 05    LDX #5
36 00   ROL $00,X
CA       DEX
76 00    ROR $00,X</pre>||Clobbers A, and Z&N
10 FD   BPL *-1</pre>||Clobbers X, and Z&N
|-
|-
!colspan="2"|7 bytes
|<pre>EA      NOP
|-
A0 06   LDY #6
|<pre>A4 00    LDY $00
A0 03   LDY #3
88      DEY
88      DEY
D0 FB   BNE *-3</pre>||Clobbers Y, and Z&N
D0 FD   BNE *-1</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>A6 00    LDX $00
!colspan="2"|7 bytes
A2 03    LDX #3
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|-
|<pre>EA       NOP
|<pre>48       PHA
E6 xx    INC @zptemp
18      CLC
36 00   ROL $00,X
A9 0A   LDA #$0A ;hides 'ASL A'
76 00   ROR $00,X</pre>||Clobbers Z&N; and requires @zptemp
10 FD   BPL *-1
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
!colspan="2"|8 bytes
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28      PLP</pre>||Clobbers A
|-
|-
|<pre>C5 00   CMP $00
|<pre>08      PHP
EA  ... NOP      &times; 2
A2 04   LDX #4
36 00   ROL $00,X
CA      DEX
76 00    ROR $00,X</pre>||Clobbers Z&N, and C
10 FD   BPL *-1
28      PLP</pre>||Clobbers X
|-
|-
|<pre>24 00   BIT $00
|<pre>08      PHP
EA  ... NOP      &times; 2
A0 05   LDY #5
36 00    ROL $00,X
88      DEY
76 00   ROR $00,X</pre>||Clobbers Z&N, and V
D0 FD   BNE *-1
|-
28      PLP</pre>||Clobbers Y
|<pre>04 00    NOP $00
EA  ... NOP      &times; 2
36 00    ROL $00,X
76 00    ROR $00,X</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
|-
!colspan="2"|9 bytes
!colspan="2"|9 bytes
|-
|-
|<pre>4C xx xx JMP *+3
|<pre>EA       NOP
EA   ... NOP     &times; 2
08      PHP
36 00    ROL $00,X
28      PLP
76 00    ROR $00,X</pre>||Clobbers Z&N; and not relocatable code
20 xx xx JSR @rts12× 2</pre>||Requires @rts12
|-
|-
!colspan="2"|10 bytes
!colspan="2"|10 bytes
|-
|-
|<pre>18       CLC
|<pre>08       PHP      \ × 2
90 00    BCC *+2
28      PLP      /
EA  ... NOP      &times; 7</pre>||Clobbers C
08       PHP
|-
36 36   ROL $36,X
|<pre>B8       CLV
76 36   ROR $36,X
50 00   BVC *+2
28      PLP</pre>||No requirements
EA  ... NOP      &times; 7</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 8</pre>||Requires @zptemp
|-
|<pre>04 00   NOP $00
EA  ... NOP      &times; 8</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|11 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 8</pre>||Not relocatable code
|-
|-
|}
|}




=== 20 cycles ===
=== 34 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|4 bytes
|-
|<pre>08      PHP
28      PLP
00 00    BRK 0</pre>||Requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|5 bytes
!colspan="2"|5 bytes
|-
|-
|<pre>A9 2A   LDA #$2A ;hides 'ROL A'
|<pre>A9 0A   LDA #$0A ;hides 'ASL A'
18      CLC
18      CLC
10 FC    BPL *-2</pre>||Clobbers A, Z&N, and C
10 FC    BPL *-2</pre>||Clobbers A, Z&N, and C
|-
|-
|<pre>E6 xx   INC @zptemp
|<pre>A0 88   LDY #136 ;hides 'DEY'
20 xx xx JSR @rts15</pre>||Clobbers Z&N; requires @zptemp, and @rts15; and writes in stack
88      DEY
30 FC    BMI *-2</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>EA      NOP
!colspan="2"|7 bytes
48      PHA
20 xx xx JSR @rts15</pre>||Clobbers S; requires @rts15; and writes in stack
|-
|-
|<pre>68  ... PLA      &times; 5</pre>||Clobbers A, S, and Z&N
|<pre>A6 A6    LDX $A6
A2 05    LDX #5
CA      DEX
10 FD    BPL *-1</pre>||Clobbers X, and Z&N
|-
|-
|<pre>48  ... PHA      &times; 2
!colspan="2"|8 bytes
20 xx xx JSR @rts14</pre>||Clobbers S; requires @rts14; and writes in stack
|-
|-
!colspan="2"|6 bytes
|<pre>C5 C5    CMP $C5
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
|<pre>EA       NOP
|<pre>08       PHP
A5 00   LDA $00
A5 A5   LDA $A5
20 xx xx JSR @rts15</pre>||Clobbers A, and Z&N; requires @rts15; and writes in stack
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28      PLP</pre>||Clobbers A
|-
|-
|<pre>EA      NOP
!colspan="2"|9 bytes
A6 00    LDX $00
20 xx xx JSR @rts15</pre>||Clobbers X, and Z&N; requires @rts15; and writes in stack
|-
|-
|<pre>EA       NOP
|<pre>08       PHP
A4 00   LDY $00
48      PHA
20 xx xx JSR @rts15</pre>||Clobbers Y, and Z&N; requires @rts15; and writes in stack
A9 2A   LDA #$2A ;hides 'ROL A'
38      SEC
10 FC    BPL *-2
68      PLA
28      PLP</pre>||No requirements
|-
|-
|<pre>BA      TSX
|}
68  ... PLA      &times; 4
 
9A      TXS</pre>||Clobbers A, X, and Z&N
 
=== 35 cycles ===
{| class="wikitable testtable"
!colspan="2"|6 bytes
|-
|-
|<pre>18       CLC
|<pre>A9 2A    LDA #$2A ;hides 'ROL A'
90 00   BCC *+2
08      PHP
20 xx xx JSR @rts15</pre>||Clobbers C; requires @rts15; and writes in stack
28       PLP
10 FB   BPL *-3</pre>||Clobbers A, Z&N, and C
|-
|-
|<pre>B8      CLV
|<pre>A2 F8    LDX #248 ;hides 'SED'
50 00   BVC *+2
E8  ... INX      × 2
20 xx xx JSR @rts15</pre>||Clobbers V; requires @rts15; and writes in stack
D0 FB   BNE *-3</pre>||Clobbers X, Z&N, and D
|-
|-
|<pre>EA  ... NOP      &times; 3
|<pre>A0 88   LDY #136 ;hides 'DEY'
20 xx xx JSR @rts14</pre>||Requires @rts14; and writes in stack
88   ... DEY     × 2
|-
30 FB    BMI *-3</pre>||Clobbers Y, and Z&N
|<pre>EA      NOP
85 xx   STA @zptemp
20 xx xx JSR @rts15</pre>||Requires @zptemp, and @rts15; and writes in stack
|-
|<pre>48   ... PHA     &times; 2
08      PHP      \ &times; 2
28      PLP      /</pre>||Clobbers S; and writes in stack
|-
|<pre>EA      NOP
04 00    NOP $00
20 xx xx JSR @rts15</pre>||Requires @rts15, and support for unofficial opcodes; and writes in stack
|-
|-
!colspan="2"|7 bytes
!colspan="2"|7 bytes
|-
|-
|<pre>EA  ... NOP      &times; 3
|<pre>98      TYA
08       PHP      \ &times; 2
A0 06    LDY #6
28      PLP       /</pre>||Writes in stack
88       DEY
D0 FD    BNE *-1
A8       TAY</pre>||Clobbers A, and Z&N
|-
|-
|<pre>EA  ... NOP      &times; 3
|<pre>EA  ... NOP      × 2
68      PLA      \ &times; 2
A2 05   LDX #5
48      PHA      /</pre>||Clobbers A, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A2 03   LDX #3
CA      DEX
CA      DEX
D0 FB   BNE *-3</pre>||Clobbers X, and Z&N
10 FD   BPL *-1</pre>||Clobbers X, and Z&N
|-
|-
|<pre>EA   ... NOP     &times; 2
!colspan="2"|8 bytes
A0 03   LDY #3
|-
88      DEY
|<pre>48      PHA
D0 FB   BNE *-3</pre>||Clobbers Y, and Z&N
38   ... SEC     × 2
A9 0A   LDA #$0A ;hides 'ASL A'
10 FD   BPL *-1
68      PLA</pre>||Clobbers Z&N, and C
|-
|<pre>08      PHP
38  ... SEC      × 2
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28      PLP</pre>||Clobbers A
|-
|-
!colspan="2"|8 bytes
|<pre>EA      NOP
08      PHP
A2 04    LDX #4
CA      DEX
10 FD    BPL *-1
28      PLP</pre>||Clobbers X
|-
|-
|<pre>26 00   ROL $00  \ &times; 2
|<pre>EA      NOP
66 00   ROR $00  /</pre>||Clobbers Z&N
08      PHP
A0 05   LDY #5
88      DEY
D0 FD   BNE *-1
28      PLP</pre>||Clobbers Y
|-
|-
!colspan="2"|10 bytes
!colspan="2"|9 bytes
|-
|-
|<pre>EA  ... NOP      &times; 10</pre>||No requirements
|<pre>08      PHP
48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
68      PLA
28      PLP</pre>||No requirements
|-
|-
|}
|}




=== 21 cycles ===
=== 36 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|4 bytes
!colspan="2"|5 bytes
|-
|-
|<pre>68  ... PLA      &times; 2
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$2A'
00 00   BRK 0</pre>||Clobbers A, S, and Z&N; requires dummy interrupt handler; and writes in stack
2A      ROL A ;first loop only
B0 FC   BCS *-2</pre>||Clobbers A, Z&N, C, and V
|-
|-
!colspan="2"|5 bytes
|<pre>A2 07   LDX #7
|-
|<pre>A2 04   LDX #4
CA      DEX
CA      DEX
D0 FB   BNE *-3</pre>||Clobbers X, and Z&N
D0 FD   BNE *-1</pre>||Clobbers X, and Z&N
|-
|-
|<pre>A0 04   LDY #4
|<pre>A0 06   LDY #6
88      DEY
88      DEY
D0 FB   BNE *-3</pre>||Clobbers Y, and Z&N
10 FD   BPL *-1</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1</pre>||Clobbers A, Z&N, and C
|-
|<pre>08      PHP
28      PLP
20 xx xx JSR @rts14</pre>||Requires @rts14; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
20 xx xx JSR @rts15</pre>||Clobbers S; requires @rts15; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
00 00    BRK 0</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
|-
!colspan="2"|6 bytes
!colspan="2"|6 bytes
|-
|-
|<pre>08       PHP      \ &times; 3
|<pre>38       SEC
28      PLP       /</pre>||Writes in stack
A9 0A    LDA #$0A ;hides 'ASL A'
|-
38       SEC
|<pre>68      PLA      \ &times; 3
10 FC    BPL *-2</pre>||Clobbers A, Z&N, and C
48      PHA      /</pre>||Clobbers A, and Z&N
|-
|-
!colspan="2"|8 bytes
!colspan="2"|8 bytes
|-
|-
|<pre>EA  ... NOP      &times; 2
|<pre>48      PHA
E6 xx    INC @zptemp
18      CLC
36 00   ROL $00,X
A9 2A   LDA #$2A ;hides 'ROL A'
76 00   ROR $00,X</pre>||Clobbers Z&N; and requires @zptemp
EA      NOP
90 FC   BCC *-2
68      PLA</pre>||Clobbers Z&N, and C
|-
|<pre>08      PHP
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
EA      NOP
90 FC    BCC *-2
28      PLP</pre>||Clobbers A
|-
|-
!colspan="2"|9 bytes
|<pre>08      PHP
A2 04    LDX #4
EA      NOP
CA      DEX
D0 FC    BNE *-2
28      PLP</pre>||Clobbers X
|-
|-
|<pre>C5 00   CMP $00
|<pre>08      PHP
EA   ... NOP     &times; 3
A0 04   LDY #4
36 00   ROL $00,X
EA       NOP
76 00    ROR $00,X</pre>||Clobbers Z&N, and C
88      DEY
D0 FC   BNE *-2
28      PLP</pre>||Clobbers Y
|-
|-
|<pre>24 00    BIT $00
!colspan="2"|9 bytes
EA  ... NOP      &times; 3
36 00    ROL $00,X
76 00    ROR $00,X</pre>||Clobbers Z&N, and V
|-
|-
|<pre>04 00    NOP $00
|<pre>20 xx xx JSR @rts12× 3</pre>||Requires @rts12
EA  ... NOP      &times; 3
36 00    ROL $00,X
76 00    ROR $00,X</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
|-
!colspan="2"|10 bytes
!colspan="2"|10 bytes
|-
|-
|<pre>4C xx xx JMP *+3
|<pre>08      PHP
EA  ... NOP      &times; 3
48      PHA
36 00    ROL $00,X
18      CLC
76 00    ROR $00,X</pre>||Clobbers Z&N; and not relocatable code
A9 2A   LDA #$2A ;hides 'ROL A'
|-
38       SEC
!colspan="2"|11 bytes
10 FC   BPL *-2
|-
68      PLA
|<pre>18      CLC
28      PLP</pre>||No requirements
90 00   BCC *+2
EA  ... NOP      &times; 8</pre>||Clobbers C
|-
|<pre>B8       CLV
50 00   BVC *+2
EA  ... NOP      &times; 8</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 9</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 9</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|12 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 9</pre>||Not relocatable code
|-
|-
|}
|}




=== 22 cycles ===
=== 37 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|5 bytes
!colspan="2"|7 bytes
|-
|-
|<pre>08      PHP
|<pre>A5 A5    LDA $A5
28       PLP
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15</pre>||Requires @rts15; and writes in stack
18       CLC
10 FC    BPL *-2</pre>||Clobbers A, Z&N, and C
|-
|-
|<pre>EA       NOP
|<pre>A2 04    LDX #4
08      PHP
EA   ... NOP     × 2
28       PLP
CA       DEX
00 00   BRK 0</pre>||Requires dummy interrupt handler; and writes in stack
D0 FB   BNE *-3</pre>||Clobbers X, and Z&N
|-
|-
|<pre>68   ... PLA     &times; 2
|<pre>A0 04    LDY #4
20 xx xx JSR @rts14</pre>||Clobbers A, S, and Z&N; requires @rts14; and writes in stack
EA   ... NOP     × 2
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|-
!colspan="2"|6 bytes
!colspan="2"|8 bytes
|-
|-
|<pre>A0 03   LDY #3
|<pre>EA      NOP
EA      NOP
98      TYA
A0 06   LDY #6
88      DEY
88      DEY
D0 FA   BNE *-4</pre>||Clobbers Y, and Z&N
D0 FD   BNE *-1
A8      TAY</pre>||Clobbers A, and Z&N
|-
|-
|<pre>A2 03    LDX #3
!colspan="2"|9 bytes
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
18      CLC
10 FC    BPL *-2</pre>||Clobbers A, Z&N, and C
|-
|-
|<pre>48      PHA
|<pre>48      PHA
08       PHP
98       TYA
28       PLP
A0 05    LDY #5
20 xx xx JSR @rts12</pre>||Clobbers S; requires @rts12; and writes in stack
88       DEY
D0 FD    BNE *-1
A8      TAY
68      PLA</pre>||Clobbers Z&N
|-
|-
|<pre>EA       NOP
|<pre>08       PHP
68  ... PLA      &times; 5</pre>||Clobbers A, S, and Z&N
98      TYA
A0 05    LDY #5
88      DEY
D0 FD    BNE *-1
A8      TAY
28      PLP</pre>||Clobbers A
|-
|-
|<pre>EA       NOP
|<pre>EA  ... NOP     × 2
48   ... PHA     &times; 2
08      PHP
20 xx xx JSR @rts14</pre>||Clobbers S; requires @rts14; and writes in stack
A2 04    LDX #4
CA      DEX
10 FD    BPL *-1
28      PLP</pre>||Clobbers X
|-
|-
!colspan="2"|7 bytes
|<pre>EA  ... NOP      × 2
08      PHP
A0 05    LDY #5
88      DEY
D0 FD    BNE *-1
28      PLP</pre>||Clobbers Y
|-
|-
|<pre>08      PHP
!colspan="2"|10 bytes
24 00    BIT $00
28      PLP
20 xx xx JSR @rts12</pre>||Requires @rts12; and writes in stack
|-
|-
|<pre>08      PHP
|<pre>08      PHP
48      PHA
48      PHA
BA      TSX
18  ... CLC      × 2
68      PLA
A9 2A    LDA #$2A ;hides 'ROL A'
9A      TXS
90 FD    BCC *-1
68      PLA
68      PLA
28      PLP</pre>||Clobbers X; and writes in stack
28      PLP</pre>||No requirements
|-
|<pre>EA  ... NOP      &times; 4
20 xx xx JSR @rts14</pre>||Requires @rts14; and writes in stack
|-
|<pre>48      PHA
08      PHP
36 00    ROL $00,X
76 00    ROR $00,X
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
24 00    BIT $00
36 00    ROL $00,X
76 00    ROR $00,X
28      PLP</pre>||Writes in stack
|-
|<pre>26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X
76 00    ROR $00,X</pre>||Clobbers Z&N
|-
!colspan="2"|11 bytes
|-
|<pre>EA  ... NOP      &times; 11</pre>||No requirements
|-
|-
|}
|}




=== 23 cycles ===
=== 38 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|5 bytes
!colspan="2"|6 bytes
|-
|-
|<pre>68  ... PLA      &times; 2
|<pre>38      SEC
20 xx xx JSR @rts15</pre>||Clobbers A, S, and Z&N; requires @rts15; and writes in stack
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA      NOP ;first loop only
B0 FC    BCS *-2</pre>||Clobbers A, Z&N, C, and V
|-
|-
|<pre>A9 2A   LDA #$2A ;hides 'ROL A'
|<pre>EA      NOP
48       PHA
A2 07   LDX #7
10 FC   BPL *-2</pre>||Clobbers A, S, Z&N, and C; and writes in stack
CA       DEX
|-
D0 FD   BNE *-1</pre>||Clobbers X, and Z&N
|<pre>48      PHA
08      PHP
28      PLP
00 00    BRK 0</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|6 bytes
|-
|-
|<pre>EA      NOP
|<pre>EA      NOP
A0 04   LDY #4
A0 06   LDY #6
88      DEY
88      DEY
D0 FB   BNE *-3</pre>||Clobbers Y, and Z&N
10 FD   BPL *-1</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|-
|<pre>EA       NOP
|<pre>48       PHA
A2 04   LDX #4
18      CLC
CA      DEX
A9 0A   LDA #$0A ;hides 'ASL A'
D0 FB   BNE *-3</pre>||Clobbers X, and Z&N
90 FD   BCC *-1
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
|<pre>18   ... CLC     &times; 2
|<pre>08      PHP
A9 2A   LDA #$2A ;hides 'ROL A'
18       CLC
90 FD    BCC *-1</pre>||Clobbers A, Z&N, and C
A9 0A   LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1
28      PLP</pre>||Clobbers A
|-
|-
|<pre>EA       NOP
|<pre>08       PHP
08       PHP
A2 05    LDX #5
28      PLP
CA       DEX
20 xx xx JSR @rts14</pre>||Requires @rts14; and writes in stack
10 FD    BPL *-1
28      PLP</pre>||Clobbers X
|-
|-
|<pre>08      PHP
|<pre>08      PHP
24 00   BIT $00
A0 06   LDY #6
28      PLP
88      DEY
00 00    BRK 0</pre>||Requires dummy interrupt handler; and writes in stack
D0 FD    BNE *-1
28      PLP</pre>||Clobbers Y
|-
|-
|<pre>EA      NOP
!colspan="2"|8 bytes
48  ... PHA      &times; 2
20 xx xx JSR @rts15</pre>||Clobbers S; requires @rts15; and writes in stack
|-
|-
|<pre>68       PLA
|<pre>08       PHP
48      PHA
48      PHA
68   ... PLA     &times; 4</pre>||Clobbers A, S, and Z&N
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68       PLA
28      PLP</pre>||No requirements
|-
|-
!colspan="2"|7 bytes
|}
 
 
=== 39 cycles ===
{| class="wikitable testtable"
!colspan="2"|4 bytes
|-
|-
|<pre>EA      NOP
|<pre>A9 4A    LDA #$4A ;hides 'LSR A'
08      PHP      \ &times; 3
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C
28      PLP      /</pre>||Writes in stack
|-
|-
|<pre>EA      NOP
!colspan="2"|7 bytes
68      PLA      \ &times; 3
48      PHA      /</pre>||Clobbers A, and Z&N
|-
|-
!colspan="2"|9 bytes
|<pre>A6 A6    LDX $A6
A2 07    LDX #7
CA      DEX
D0 FD    BNE *-1</pre>||Clobbers X, and Z&N
|-
|-
|<pre>E6 xx   INC @zptemp
|<pre>A4 A4   LDY $A4
EA  ... NOP      &times; 3
A0 06    LDY #6
36 00    ROL $00,X
88      DEY
76 00   ROR $00,X</pre>||Clobbers Z&N; and requires @zptemp
10 FD   BPL *-1</pre>||Clobbers Y, and Z&N
|-
|-
!colspan="2"|10 bytes
!colspan="2"|8 bytes
|-
|-
|<pre>C5 00   CMP $00
|<pre>98      TYA
26 00    ROL $00   \ &times; 2
A0 88   LDY #136 ;hides 'DEY'
66 00   ROR $00  /</pre>||Clobbers Z&N, and C
88   ... DEY      × 2
30 FB   BMI *-3
A8      TAY</pre>||Clobbers A, and Z&N
|-
|-
|<pre>24 00   BIT $00
|<pre>08      PHP
26 00    ROL $00  \ &times; 2
A2 05   LDX #5 ;hides 'ORA zp'
66 00   ROR $00  /</pre>||Clobbers Z&N, and V
CA      DEX ;first loop only
CA      DEX
D0 FB   BNE *-3
28      PLP</pre>||Clobbers A, and X
|-
|-
|<pre>04 00   NOP $00
|<pre>08      PHP
26 00    ROL $00  \ &times; 2
A0 05   LDY #5 ;hides 'ORA zp'
66 00   ROR $00  /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
88      DEY ;first loop only
88      DEY
D0 FB   BNE *-3
28      PLP</pre>||Clobbers A, and Y
|-
|-
!colspan="2"|11 bytes
!colspan="2"|9 bytes
|-
|-
|<pre>4C xx xx JMP *+3
|<pre>48      PHA
26 00   ROL $00   \ &times; 2
A9 2A   LDA #$2A ;hides 'ROL A'
66 00   ROR $00  /</pre>||Clobbers Z&N; and not relocatable code
EA   ... NOP      × 3
10 FA   BPL *-4
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
!colspan="2"|12 bytes
|<pre>08      PHP
A9 2A    LDA #$2A ;hides 'ROL A'
EA  ... NOP      × 3
10 FA    BPL *-4
28      PLP</pre>||Clobbers A
|-
|-
|<pre>18      CLC
!colspan="2"|10 bytes
90 00    BCC *+2
EA  ... NOP      &times; 9</pre>||Clobbers C
|-
|-
|<pre>B8       CLV
|<pre>EA       NOP
50 00   BVC *+2
48      PHA
EA  ... NOP      &times; 9</pre>||Clobbers V
98      TYA
A0 05   LDY #5
88      DEY
D0 FD    BNE *-1
A8      TAY
68      PLA</pre>||Clobbers Z&N
|-
|-
|<pre>85 xx   STA @zptemp
|<pre>08      PHP
EA   ... NOP     &times; 10</pre>||Requires @zptemp
A6 A6    LDX $A6
A2 04   LDX #4
EA       NOP
CA      DEX
D0 FC    BNE *-2
28      PLP</pre>||Clobbers X
|-
|-
|<pre>04 00   NOP $00
|<pre>08      PHP
EA   ... NOP     &times; 10</pre>||Requires support for unofficial opcodes
A4 A4    LDY $A4
A0 04    LDY #4
EA       NOP
88      DEY
D0 FC    BNE *-2
28      PLP</pre>||Clobbers Y
|-
|-
!colspan="2"|13 bytes
!colspan="2"|11 bytes
|-
|-
|<pre>4C xx xx JMP *+3
|<pre>08      PHP
EA  ... NOP      &times; 10</pre>||Not relocatable code
48      PHA
98      TYA
A0 04    LDY #4
88      DEY
D0 FD    BNE *-1
A8      TAY
68      PLA
28      PLP</pre>||No requirements
|-
|-
|}
|}




=== 24 cycles ===
=== 40 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|4 bytes
!colspan="2"|6 bytes
|-
|-
|<pre>A9 0A   LDA #$0A ;hides 'ASL A'
|<pre>A2 05   LDX #5 ;hides 'ORA zp'
10 FD   BPL *-1</pre>||Clobbers A, Z&N, and C
EA      NOP
CA      DEX
D0 FB   BNE *-3</pre>||Clobbers A, X, and Z&N
|-
|-
!colspan="2"|5 bytes
|<pre>A0 05    LDY #5 ;hides 'ORA zp'
EA      NOP
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, and Z&N
|-
|-
|<pre>48      PHA
!colspan="2"|7 bytes
68  ... PLA      &times; 2
00 00    BRK 0</pre>||Clobbers A, S, and Z&N; requires dummy interrupt handler; and writes in stack
|-
|-
!colspan="2"|6 bytes
|<pre>98      TYA
A0 06    LDY #6
88      DEY
10 FD    BPL *-1
A8      TAY</pre>||Clobbers A, and Z&N
|-
|-
|<pre>20 xx xx JSR @rts12&times; 2</pre>||Requires @rts12; and writes in stack
|<pre>EA  ... NOP      × 2
A2 07    LDX #7
CA      DEX
D0 FD    BNE *-1</pre>||Clobbers X, and Z&N
|-
|-
|<pre>EA       NOP
|<pre>EA   ... NOP     × 2
08      PHP
A0 06    LDY #6
28       PLP
88       DEY
20 xx xx JSR @rts15</pre>||Requires @rts15; and writes in stack
10 FD    BPL *-1</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>EA  ... NOP      &times; 2
!colspan="2"|8 bytes
08      PHP
28      PLP
00 00    BRK 0</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>68  ... PLA      &times; 6</pre>||Clobbers A, S, and Z&N
|-
|-
|<pre>48      PHA
|<pre>48      PHA
A0 04   LDY #4
18  ... CLC      × 2
88      DEY
A9 0A   LDA #$0A ;hides 'ASL A'
D0 FB   BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
90 FD   BCC *-1
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
|<pre>48       PHA
|<pre>08       PHP
A2 04   LDX #4
18  ... CLC      × 2
CA      DEX
A9 0A   LDA #$0A ;hides 'ASL A'
D0 FB   BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
90 FD   BCC *-1
28      PLP</pre>||Clobbers A
|-
|-
|<pre>48       PHA
|<pre>EA       NOP
08      PHP
08      PHP
28      PLP
A2 05   LDX #5
20 xx xx JSR @rts14</pre>||Clobbers S; requires @rts14; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 04   LDX #4
CA      DEX
CA      DEX
D0 FB   BNE *-3</pre>||Clobbers X, and Z&N
10 FD   BPL *-1
28      PLP</pre>||Clobbers X
|-
|-
|<pre>A4 00    LDY $00
|<pre>EA      NOP
A0 04   LDY #4
08      PHP
A0 06   LDY #6
88      DEY
88      DEY
D0 FB   BNE *-3</pre>||Clobbers Y, and Z&N
D0 FD   BNE *-1
28      PLP</pre>||Clobbers Y
|-
|-
|<pre>08      PHP
!colspan="2"|9 bytes
24 00    BIT $00
28      PLP
20 xx xx JSR @rts14</pre>||Requires @rts14; and writes in stack
|-
|<pre>48      PHA
08      PHP      \ &times; 3
28      PLP      /</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|8 bytes
|-
|-
|<pre>08      PHP
|<pre>08      PHP
28       PLP
48       PHA
08       PHP
18       CLC
26 00   ROL $00
A9 0A   LDA #$0A ;hides 'ASL A'
66 00   ROR $00
10 FD   BPL *-1
28      PLP</pre>||Writes in stack
68      PLA
|-
28      PLP</pre>||No requirements
|<pre>36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|12 bytes
|-
|<pre>EA  ... NOP      &times; 12</pre>||No requirements
|-
|-
|}
|}




=== 25 cycles ===
=== 41 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|5 bytes
!colspan="2"|5 bytes
|-
|-
|<pre>20 xx xx JSR @rts12
|<pre>38      SEC
00 00   BRK 0</pre>||Requires dummy interrupt handler, and @rts12; and writes in stack
A9 4A   LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C
|-
|-
|<pre>68  ... PLA      &times; 3
|<pre>A2 08    LDX #8
00 00   BRK 0</pre>||Clobbers A, S, and Z&N; requires dummy interrupt handler; and writes in stack
CA      DEX
D0 FD   BNE *-1</pre>||Clobbers X, and Z&N
|-
|-
!colspan="2"|6 bytes
|<pre>A0 08    LDY #8
88      DEY
D0 FD    BNE *-1</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>36 00    ROL $00,X
!colspan="2"|7 bytes
76 00    ROR $00,X
00 00    BRK 0</pre>||Clobbers Z&N; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
E6 xx    INC @zptemp
28      PLP
00 00    BRK 0</pre>||Requires @zptemp, and dummy interrupt handler; and writes in stack
|-
|-
|<pre>48      PHA
|<pre>48      PHA
08       PHP
A9 0A    LDA #$0A ;hides 'ASL A'
28       PLP
18       CLC
20 xx xx JSR @rts15</pre>||Clobbers S; requires @rts15; and writes in stack
10 FC    BPL *-2
68       PLA</pre>||Clobbers Z&N, and C
|-
|-
|<pre>A2 03   LDX #3
|<pre>08      PHP
48      PHA
A9 0A   LDA #$0A ;hides 'ASL A'
CA       DEX
18       CLC
D0 FA   BNE *-4</pre>||Clobbers X, S, and Z&N; and writes in stack
10 FC   BPL *-2
28      PLP</pre>||Clobbers A
|-
|-
|<pre>A0 03   LDY #3
|<pre>08      PHP
48      PHA
A0 88   LDY #136 ;hides 'DEY'
88      DEY
88      DEY
D0 FA   BNE *-4</pre>||Clobbers Y, S, and Z&N; and writes in stack
30 FC   BMI *-2
28      PLP</pre>||Clobbers Y
|-
|-
|<pre>68      PLA
!colspan="2"|9 bytes
A0 04    LDY #4
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|-
|<pre>68       PLA
|<pre>08       PHP
A2 04   LDX #4
A6 A6    LDX $A6
A2 05   LDX #5
CA      DEX
CA      DEX
D0 FB   BNE *-3</pre>||Clobbers A, X, S, and Z&N
10 FD   BPL *-1
28      PLP</pre>||Clobbers X
|-
|-
|<pre>68      PLA
!colspan="2"|10 bytes
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1</pre>||Clobbers A, S, Z&N, and C
|-
|<pre>48      PHA
68  ... PLA      &times; 2
20 xx xx JSR @rts14</pre>||Clobbers A, S, and Z&N; requires @rts14; and writes in stack
|-
|<pre>48  ... PHA      &times; 4
00 00    BRK 0</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|7 bytes
|-
|-
|<pre>08      PHP
|<pre>08      PHP
24 00   BIT $00
48      PHA
28      PLP
A5 A5    LDA $A5
20 xx xx JSR @rts15</pre>||Requires @rts15; and writes in stack
A9 0A   LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA
28      PLP</pre>||No requirements
|-
|-
|<pre>A9 09   LDA #$09 ;hides 'ORA #$EA'
|}
EA      NOP ;first loop only
 
08      PHP
 
28      PLP
=== 42 cycles ===
10 FA   BPL *-4</pre>||Clobbers A, and Z&N; and writes in stack
{| class="wikitable testtable"
!colspan="2"|6 bytes
|-
|<pre>A5 A5    LDA $A5
A9 4A   LDA #$4A ;hides 'LSR A'
D0 FD   BNE *-1</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|7 bytes
|-
|-
|<pre>EA   ... NOP     &times; 2
|<pre>EA       NOP
A2 04   LDX #4
A2 05   LDX #5 ;hides 'ORA zp'
EA      NOP
CA      DEX
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
D0 FB    BNE *-3</pre>||Clobbers A, X, and Z&N
|-
|-
|<pre>EA   ... NOP     &times; 2
|<pre>EA       NOP
A0 04   LDY #4
A0 05   LDY #5 ;hides 'ORA zp'
EA      NOP
88      DEY
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
D0 FB    BNE *-3</pre>||Clobbers A, Y, and Z&N
|-
!colspan="2"|8 bytes
|-
|-
|<pre>EA  ... NOP      &times; 2
|<pre>48       PHA
18       CLC
A9 2A    LDA #$2A ;hides 'ROL A'
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1</pre>||Clobbers A, Z&N, and C
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
08      PHP
28      PLP
28      PLP
20 xx xx JSR @rts14</pre>||Requires @rts14; and writes in stack
10 FB    BPL *-3
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
|<pre>EA       NOP
|<pre>08       PHP
A9 2A    LDA #$2A ;hides 'ROL A'
08      PHP
08      PHP
24 00    BIT $00
28      PLP
28      PLP
00 00   BRK 0</pre>||Requires dummy interrupt handler; and writes in stack
10 FB   BPL *-3
28      PLP</pre>||Clobbers A
|-
|-
|<pre>48   ... PHA     &times; 2
|<pre>08      PHP
08      PHP
A2 F8    LDX #248 ;hides 'SED'
28      PLP
E8   ... INX     × 2
20 xx xx JSR @rts12</pre>||Clobbers S; requires @rts12; and writes in stack
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X
|-
|-
|<pre>EA       NOP
|<pre>08       PHP
68      PLA
A0 88    LDY #136 ;hides 'DEY'
48      PHA
88   ... DEY     × 2
68   ... PLA     &times; 4</pre>||Clobbers A, S, and Z&N
30 FB    BMI *-3
28      PLP</pre>||Clobbers Y
|-
|-
|<pre>08      PHP
!colspan="2"|9 bytes
A9      LDA #0
20 xx xx JSR delay_256a_16_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks, and delay_256a_16_clocks; and writes in stack
|-
|-
|<pre>48      PHA
|<pre>48      PHA
A9       LDA #0
98       TYA
20 xx xx JSR delay_256a_16_clocks
A0 06    LDY #6
68       PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks, and delay_256a_16_clocks; and writes in stack
88       DEY
|-
D0 FD    BNE *-1
!colspan="2"|8 bytes
A8       TAY
|-
68      PLA</pre>||Clobbers Z&N
|<pre>EA  ... NOP      &times; 2
08      PHP      \ &times; 3
28      PLP       /</pre>||Writes in stack
|-
|<pre>EA  ... NOP      &times; 2
68      PLA       \ &times; 3
48      PHA      /</pre>||Clobbers A, and Z&N
|-
|-
!colspan="2"|10 bytes
!colspan="2"|10 bytes
|-
|-
|<pre>C5 00    CMP $00
|<pre>08      PHP
26 00   ROL $00
48      PHA
66 00   ROR $00
38  ... SEC      × 2
36 00    ROL $00,X
A9 0A   LDA #$0A ;hides 'ASL A'
76 00    ROR $00,X</pre>||Clobbers Z&N, and C
10 FD   BPL *-1
68      PLA
28      PLP</pre>||No requirements
|-
|-
|<pre>24 00    BIT $00
|}
26 00   ROL $00
 
66 00   ROR $00
 
36 00    ROL $00,X
=== 43 cycles ===
76 00    ROR $00,X</pre>||Clobbers Z&N, and V
{| class="wikitable testtable"
|-
!colspan="2"|6 bytes
|<pre>E6 xx   INC @zptemp
|-
26 00   ROL $00  \ &times; 2
|<pre>38  ... SEC      × 2
66 00    ROR $00  /</pre>||Clobbers Z&N; and requires @zptemp
A9 4A   LDA #$4A ;hides 'LSR A'
D0 FD   BNE *-1</pre>||Clobbers A, Z&N, and C
|-
|<pre>A2 05   LDX #5
EA      NOP
CA      DEX
10 FC   BPL *-2</pre>||Clobbers X, and Z&N
|-
|-
|<pre>04 00   NOP $00
|<pre>A0 06   LDY #6
26 00    ROL $00
EA      NOP
66 00    ROR $00
88      DEY
36 00   ROL $00,X
D0 FC   BNE *-2</pre>||Clobbers Y, and Z&N
76 00    ROR $00,X</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
|-
!colspan="2"|11 bytes
!colspan="2"|7 bytes
|-
|-
|<pre>4C xx xx JMP *+3
|<pre>48      PHA
26 00   ROL $00
A9 E9   LDA #$E9 ;hides 'SBC #$2A'
66 00    ROR $00
2A      ROL A ;first loop only
36 00    ROL $00,X
B0 FC   BCS *-2
76 00   ROR $00,X</pre>||Clobbers Z&N; and not relocatable code
68      PLA</pre>||Clobbers Z&N, C, and V
|-
|-
!colspan="2"|13 bytes
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
B0 FC    BCS *-2
28      PLP</pre>||Clobbers A
|-
|-
|<pre>18       CLC
|<pre>08       PHP
90 00   BCC *+2
A2 07   LDX #7
EA  ... NOP      &times; 10</pre>||Clobbers C
CA      DEX
D0 FD    BNE *-1
28      PLP</pre>||Clobbers X
|-
|-
|<pre>B8       CLV
|<pre>08       PHP
50 00   BVC *+2
A0 06   LDY #6
EA  ... NOP      &times; 10</pre>||Clobbers V
88      DEY
10 FD    BPL *-1
28      PLP</pre>||Clobbers Y
|-
|-
|<pre>85 xx    STA @zptemp
!colspan="2"|8 bytes
EA  ... NOP      &times; 11</pre>||Requires @zptemp
|-
|-
|<pre>04 00   NOP $00
|<pre>48      PHA
EA  ... NOP      &times; 11</pre>||Requires support for unofficial opcodes
38      SEC
A9 0A   LDA #$0A ;hides 'ASL A'
38      SEC
10 FC    BPL *-2
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
!colspan="2"|14 bytes
!colspan="2"|10 bytes
|-
|-
|<pre>4C xx xx JMP *+3
|<pre>08      PHP
EA   ... NOP     &times; 11</pre>||Not relocatable code
48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
EA       NOP
90 FC    BCC *-2
68      PLA
28      PLP</pre>||No requirements
|-
|-
|}
|}




=== 26 cycles ===
=== 44 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|4 bytes
!colspan="2"|6 bytes
|-
|-
|<pre>00 00... BRK 0   &times; 2</pre>||Requires dummy interrupt handler; and writes in stack
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      × 2
10 FB   BPL *-3</pre>||Clobbers A, Z&N, and C
|-
|-
!colspan="2"|5 bytes
|<pre>A0 88    LDY #136 ;hides 'DEY'
EA      NOP
88      DEY
30 FB    BMI *-3</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>A2 05   LDX #5
!colspan="2"|7 bytes
|-
|<pre>A6 A6    LDX $A6
A2 08   LDX #8
CA      DEX
CA      DEX
D0 FB   BNE *-3</pre>||Clobbers X, and Z&N
D0 FD   BNE *-1</pre>||Clobbers X, and Z&N
|-
|-
|<pre>A0 05    LDY #5
!colspan="2"|9 bytes
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>18       CLC
|<pre>C5 C5    CMP $C5
48       PHA
A9 0A    LDA #$0A ;hides 'ASL A'
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD   BPL *-1</pre>||Clobbers A, Z&N, and C
18      CLC
10 FC   BPL *-2
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
!colspan="2"|6 bytes
|<pre>08       PHP
|-
A5 A5    LDA $A5
|<pre>20 xx xx JSR @rts12
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14</pre>||Requires @rts12, and @rts14; and writes in stack
18       CLC
|-
10 FC    BPL *-2
|<pre>48       PHA
28      PLP</pre>||Clobbers A
68  ... PLA      &times; 2
20 xx xx JSR @rts15</pre>||Clobbers A, S, and Z&N; requires @rts15; and writes in stack
|-
|<pre>68  ... PLA      &times; 3
20 xx xx JSR @rts14</pre>||Clobbers A, S, and Z&N; requires @rts14; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>EA       NOP
20 xx xx JSR @rts12&times; 2</pre>||Requires @rts12; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
28      PLP
20 xx xx JSR @rts15</pre>||Requires @rts15; and writes in stack
|-
|<pre>36 00    ROL $00,X
76 00    ROR $00,X
20 xx xx JSR @rts14</pre>||Clobbers Z&N; requires @rts14; and writes in stack
|-
|-
|<pre>08      PHP
|<pre>08      PHP
E6 xx   INC @zptemp
A2 04   LDX #4
28      PLP
EA  ... NOP     × 2
20 xx xx JSR @rts14</pre>||Requires @zptemp, and @rts14; and writes in stack
CA      DEX
|-
D0 FB    BNE *-3
|<pre>EA       NOP
28      PLP</pre>||Clobbers X
68   ... PLA     &times; 6</pre>||Clobbers A, S, and Z&N
|-
|<pre>48  ... PHA      &times; 4
20 xx xx JSR @rts14</pre>||Clobbers S; requires @rts14; and writes in stack
|-
!colspan="2"|8 bytes
|-
|-
|<pre>08      PHP
|<pre>08      PHP
28      PLP
A0 04    LDY #4
08       PHP
EA  ... NOP      × 2
36 00    ROL $00,X
88       DEY
76 00   ROR $00,X
D0 FB   BNE *-3
28      PLP</pre>||Writes in stack
28      PLP</pre>||Clobbers Y
|-
|-
|<pre>36 00    ROL $00,X
!colspan="2"|10 bytes
76 00    ROR $00,X
68      PLA      \ &times; 2
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|9 bytes
|-
|-
|<pre>EA      NOP
|<pre>EA      NOP
36 00   ROL $00,X \ &times; 2
48      PHA
76 00   ROR $00,X /</pre>||Clobbers Z&N
98      TYA
A0 06   LDY #6
88      DEY
D0 FD   BNE *-1
A8      TAY
68      PLA</pre>||Clobbers Z&N
|-
|-
!colspan="2"|13 bytes
!colspan="2"|11 bytes
|-
|-
|<pre>EA  ... NOP      &times; 13</pre>||No requirements
|<pre>08      PHP
48      PHA
98      TYA
A0 05    LDY #5
88      DEY
D0 FD    BNE *-1
A8      TAY
68      PLA
28      PLP</pre>||No requirements
|-
|-
|}
|}




=== 27 cycles ===
=== 45 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|5 bytes
!colspan="2"|7 bytes
|-
|-
|<pre>00 00   BRK 0
|<pre>98      TYA
20 xx xx JSR @rts14</pre>||Requires dummy interrupt handler, and @rts14; and writes in stack
A0 08   LDY #8
88      DEY
D0 FD    BNE *-1
A8      TAY</pre>||Clobbers A, and Z&N
|-
|-
|<pre>48      PHA
|<pre>EA  ... NOP      × 2
A9 0A   LDA #$0A ;hides 'ASL A'
A2 08   LDX #8
10 FD    BPL *-1</pre>||Clobbers A, S, Z&N, and C; and writes in stack
CA      DEX
D0 FD    BNE *-1</pre>||Clobbers X, and Z&N
|-
|-
|<pre>A9       LDA #0
|<pre>EA  ... NOP      × 2
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
A0 08    LDY #8
88       DEY
D0 FD    BNE *-1</pre>||Clobbers Y, and Z&N
|-
|-
!colspan="2"|6 bytes
!colspan="2"|8 bytes
|-
|-
|<pre>20 xx xx JSR @rts12
|<pre>48      PHA
20 xx xx JSR @rts15</pre>||Requires @rts12, and @rts15; and writes in stack
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA      NOP ;first loop only
B0 FC    BCS *-2
68      PLA</pre>||Clobbers Z&N, C, and V
|-
|-
|<pre>A5 00    LDA $00
|<pre>08      PHP
A9 0A   LDA #$0A ;hides 'ASL A'
38      SEC
10 FD   BPL *-1</pre>||Clobbers A, Z&N, and C
A9 69   LDA #$69 ;hides 'ADC #$EA'
EA      NOP ;first loop only
B0 FC   BCS *-2
28      PLP</pre>||Clobbers A
|-
|-
|<pre>00 00    BRK 0
|<pre>EA      NOP
08      PHP      \ &times; 2
08      PHP
28      PLP       /</pre>||Requires dummy interrupt handler; and writes in stack
A2 07    LDX #7
CA       DEX
D0 FD    BNE *-1
28      PLP</pre>||Clobbers X
|-
|-
|<pre>68  ... PLA      &times; 3
|<pre>EA      NOP
20 xx xx JSR @rts15</pre>||Clobbers A, S, and Z&N; requires @rts15; and writes in stack
08      PHP
A0 06    LDY #6
88      DEY
10 FD    BPL *-1
28      PLP</pre>||Clobbers Y
|-
|-
!colspan="2"|7 bytes
!colspan="2"|9 bytes
|-
|<pre>36 00    ROL $00,X
76 00    ROR $00,X
20 xx xx JSR @rts15</pre>||Clobbers Z&N; requires @rts15; and writes in stack
|-
|-
|<pre>08      PHP
|<pre>08      PHP
A9 2A    LDA #$2A ;hides 'ROL A'
48      PHA
18      CLC
18      CLC
10 FC   BPL *-2
A9 0A   LDA #$0A ;hides 'ASL A'
28      PLP</pre>||Clobbers A; and writes in stack
90 FD    BCC *-1
68      PLA
28      PLP</pre>||No requirements
|-
|-
|<pre>48      PHA
|}
A9 2A    LDA #$2A ;hides 'ROL A'
 
18      CLC
 
10 FC    BPL *-2
=== 46 cycles ===
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|-
|<pre>08       PHP
|<pre>A2 08    LDX #8
E6 xx   INC @zptemp
CA       DEX
28       PLP
10 FD    BPL *-1</pre>||Clobbers X, and Z&N
20 xx xx JSR @rts15</pre>||Requires @zptemp, and @rts15; and writes in stack
|-
|-
|<pre>48       PHA
|<pre>A0 09    LDY #9
20 xx xx JSR @rts12&times; 2</pre>||Clobbers S; requires @rts12; and writes in stack
88       DEY
D0 FD    BNE *-1</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>48  ... PHA      &times; 4
!colspan="2"|6 bytes
20 xx xx JSR @rts15</pre>||Clobbers S; requires @rts15; and writes in stack
|-
|-
|<pre>68      PLA
|<pre>48      PHA
48      PHA
A9 4A    LDA #$4A ;hides 'LSR A'
68   ... PLA     &times; 5</pre>||Clobbers A, S, and Z&N
D0 FD    BNE *-1
68       PLA</pre>||Clobbers Z&N, and C
|-
|-
|<pre>48  ... PHA      &times; 2
|<pre>08      PHP
A0 04   LDY #4
A9 4A   LDA #$4A ;hides 'LSR A'
88      DEY
D0 FD   BNE *-1
D0 FB   BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
28      PLP</pre>||Clobbers A
|-
|-
|<pre>48  ... PHA      &times; 2
!colspan="2"|9 bytes
A2 04    LDX #4
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|-
|<pre>48  ... PHA      &times; 2
|<pre>08      PHP
08      PHP
A6 A6    LDX $A6
28      PLP
A2 07   LDX #7
20 xx xx JSR @rts14</pre>||Clobbers S; requires @rts14; and writes in stack
|-
|<pre>A2 82   LDX #130 ;hides 'NOP #imm'
04 EA    NOP $EA ;hides 'NOP'
CA      DEX
CA      DEX
30 FA   BMI *-4</pre>||Clobbers X, and Z&N; and requires support for unofficial opcodes
D0 FD   BNE *-1
28      PLP</pre>||Clobbers X
|-
|-
|<pre>A0 82   LDY #130 ;hides 'NOP #imm'
|<pre>08      PHP
04 EA    NOP $EA ;hides 'NOP'
A4 A4    LDY $A4
A0 06   LDY #6
88      DEY
88      DEY
30 FA   BMI *-4</pre>||Clobbers Y, and Z&N; and requires support for unofficial opcodes
10 FD   BPL *-1
28      PLP</pre>||Clobbers Y
|-
|-
!colspan="2"|8 bytes
!colspan="2"|10 bytes
|-
|-
|<pre>EA       NOP
|<pre>48       PHA
08       PHP
98       TYA
24 00   BIT $00
A0 88   LDY #136 ;hides 'DEY'
28       PLP
88  ... DEY      × 2
20 xx xx JSR @rts15</pre>||Requires @rts15; and writes in stack
30 FB    BMI *-3
A8       TAY
68      PLA</pre>||Clobbers Z&N
|-
|-
|<pre>EA  ... NOP      &times; 3
!colspan="2"|11 bytes
A0 04    LDY #4
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A2 04    LDX #4
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>24 00    BIT $00
20 xx xx JSR @rts12&times; 2</pre>||Clobbers Z&N, and V; requires @rts12; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
28      PLP
20 xx xx JSR @rts14</pre>||Requires @rts14; and writes in stack
|-
|<pre>85 xx    STA @zptemp
20 xx xx JSR @rts12&times; 2</pre>||Requires @zptemp, and @rts12; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP      \ &times; 3
28      PLP      /</pre>||Clobbers S; and writes in stack
|-
|<pre>04 00    NOP $00
20 xx xx JSR @rts12&times; 2</pre>||Requires @rts12, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|-
|<pre>08      PHP
|<pre>08      PHP
48      PHA
48      PHA
A9 6A   LDA #$6A ;hides 'ROR A'
A9 2A   LDA #$2A ;hides 'ROL A'
38      SEC
EA  ... NOP      × 3
10 FC   BPL *-2
10 FA   BPL *-4
68      PLA
68      PLA
28      PLP</pre>||Writes in stack
28      PLP</pre>||No requirements
|-
|-
|<pre>EA  ... NOP      &times; 3
|}
68      PLA      \ &times; 3
 
48      PHA      /</pre>||Clobbers A, and Z&N
 
=== 47 cycles ===
{| class="wikitable testtable"
!colspan="2"|8 bytes
|-
|-
!colspan="2"|10 bytes
|<pre>98      TYA
A0 06    LDY #6
EA      NOP
88      DEY
D0 FC    BNE *-2
A8      TAY</pre>||Clobbers A, and Z&N
|-
|-
|<pre>C5 00   CMP $00
|<pre>EA  ... NOP      × 3
36 00    ROL $00,X \ &times; 2
A2 08   LDX #8
76 00   ROR $00,X /</pre>||Clobbers Z&N, and C
CA      DEX
D0 FD   BNE *-1</pre>||Clobbers X, and Z&N
|-
|-
|<pre>24 00    BIT $00
|<pre>08      PHP
36 00   ROL $00,X \ &times; 2
A2 05   LDX #5 ;hides 'ORA zp'
76 00   ROR $00,X /</pre>||Clobbers Z&N, and V
EA      NOP
CA      DEX
D0 FB   BNE *-3
28      PLP</pre>||Clobbers A, and X
|-
|-
|<pre>E6 xx    INC @zptemp
|<pre>EA  ... NOP      × 3
26 00   ROL $00
A0 08   LDY #8
66 00    ROR $00
88      DEY
36 00   ROL $00,X
D0 FD   BNE *-1</pre>||Clobbers Y, and Z&N
76 00    ROR $00,X</pre>||Clobbers Z&N; and requires @zptemp
|-
|-
|<pre>04 00   NOP $00
|<pre>08      PHP
36 00   ROL $00,X \ &times; 2
A0 05   LDY #5 ;hides 'ORA zp'
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
EA      NOP
88      DEY
D0 FB   BNE *-3
28      PLP</pre>||Clobbers A, and Y
|-
|-
!colspan="2"|11 bytes
!colspan="2"|9 bytes
|-
|-
|<pre>4C xx xx JMP *+3
|<pre>48      PHA
36 00   ROL $00,X \ &times; 2
98      TYA
76 00   ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
A0 06   LDY #6
88      DEY
10 FD   BPL *-1
A8      TAY
68      PLA</pre>||Clobbers Z&N
|-
|-
!colspan="2"|14 bytes
|<pre>08      PHP
98      TYA
A0 06    LDY #6
88      DEY
10 FD    BPL *-1
A8      TAY
28      PLP</pre>||Clobbers A
|-
|-
|<pre>18      CLC
|<pre>EA  ... NOP      × 2
90 00    BCC *+2
08      PHP
EA  ... NOP      &times; 11</pre>||Clobbers C
A2 07    LDX #7
CA      DEX
D0 FD    BNE *-1
28      PLP</pre>||Clobbers X
|-
|-
|<pre>B8      CLV
|<pre>EA  ... NOP      × 2
50 00    BVC *+2
08      PHP
EA  ... NOP      &times; 11</pre>||Clobbers V
A0 06    LDY #6
88      DEY
10 FD    BPL *-1
28      PLP</pre>||Clobbers Y
|-
|-
|<pre>85 xx    STA @zptemp
!colspan="2"|10 bytes
EA  ... NOP      &times; 12</pre>||Requires @zptemp
|-
|-
|<pre>04 00    NOP $00
|<pre>08      PHP
EA   ... NOP     &times; 12</pre>||Requires support for unofficial opcodes
48      PHA
|-
18   ... CLC     × 2
!colspan="2"|15 bytes
A9 0A    LDA #$0A ;hides 'ASL A'
|-
90 FD    BCC *-1
|<pre>4C xx xx JMP *+3
68      PLA
EA  ... NOP      &times; 12</pre>||Not relocatable code
28      PLP</pre>||No requirements
|-
|-
|}
|}




=== 28 cycles ===
=== 48 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|5 bytes
!colspan="2"|6 bytes
|-
|-
|<pre>EA      NOP
|<pre>EA      NOP
00 00... BRK 0   &times; 2</pre>||Requires dummy interrupt handler; and writes in stack
A2 08   LDX #8
|-
CA       DEX
|<pre>68       PLA
10 FD    BPL *-1</pre>||Clobbers X, and Z&N
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1</pre>||Clobbers A, S, Z&N, and C
|-
|<pre>A9      LDA #1
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|-
|<pre>EA      NOP
|<pre>EA      NOP
A0 05   LDY #5
A0 09   LDY #9
88      DEY
88      DEY
D0 FB   BNE *-3</pre>||Clobbers Y, and Z&N
D0 FD   BNE *-1</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>EA      NOP
!colspan="2"|7 bytes
A2 05    LDX #5
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|-
|<pre>EA  ... NOP      &times; 2
|<pre>48      PHA
A9 0A   LDA #$0A ;hides 'ASL A'
38      SEC
10 FD    BPL *-1</pre>||Clobbers A, Z&N, and C
A9 4A   LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
|<pre>20 xx xx JSR @rts14&times; 2</pre>||Requires @rts14; and writes in stack
|<pre>08      PHP
|-
38      SEC
!colspan="2"|7 bytes
A9 4A    LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers A
|-
|-
|<pre>08      PHP
|<pre>08      PHP
18      CLC
A2 08   LDX #8
A9 2A   LDA #$2A ;hides 'ROL A'
CA      DEX
90 FD    BCC *-1
D0 FD    BNE *-1
28      PLP</pre>||Clobbers A; and writes in stack
28      PLP</pre>||Clobbers X
|-
|-
|<pre>08      PHP
|<pre>08      PHP
A0 04   LDY #4
A0 08   LDY #8
88      DEY
88      DEY
D0 FB   BNE *-3
D0 FD   BNE *-1
28      PLP</pre>||Clobbers Y; and writes in stack
28      PLP</pre>||Clobbers Y
|-
!colspan="2"|9 bytes
|-
|-
|<pre>08      PHP
|<pre>08      PHP
A2 04    LDX #4
48       PHA
CA       DEX
A9 0A   LDA #$0A ;hides 'ASL A'
D0 FB   BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
18      CLC
18      CLC
A9 2A   LDA #$2A ;hides 'ROL A'
10 FC   BPL *-2
90 FD    BCC *-1
68      PLA
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
28      PLP</pre>||No requirements
|-
|-
|<pre>48  ... PHA      &times; 2
|}
08      PHP
 
28      PLP
 
20 xx xx JSR @rts15</pre>||Clobbers S; requires @rts15; and writes in stack
=== 49 cycles ===
{| class="wikitable testtable"
!colspan="2"|4 bytes
|-
|-
|<pre>68  ... PLA      &times; 7</pre>||Clobbers A, S, and Z&N
|<pre>A0 88    LDY #136 ;hides 'DEY'
30 FD    BMI *-1</pre>||Clobbers Y, and Z&N
|-
|-
!colspan="2"|8 bytes
!colspan="2"|7 bytes
|-
|-
|<pre>08      PHP       \ &times; 4
|<pre>18      CLC
28      PLP       /</pre>||Writes in stack
A9 2A    LDA #$2A ;hides 'ROL A'
|-
08      PHP
|<pre>68       PLA      \ &times; 4
28      PLP
48      PHA      /</pre>||Clobbers A, and Z&N
90 FB    BCC *-3</pre>||Clobbers A, Z&N, and C
|-
|<pre>A6 A6    LDX $A6
A2 08    LDX #8
CA       DEX
10 FD    BPL *-1</pre>||Clobbers X, and Z&N
|-
!colspan="2"|8 bytes
|-
|-
!colspan="2"|10 bytes
|<pre>C5 C5    CMP $C5
48      PHA
A9 4A    LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
|<pre>EA  ... NOP      &times; 2
|<pre>08      PHP
36 00   ROL $00,X \ &times; 2
A5 A5    LDA $A5
76 00   ROR $00,X /</pre>||Clobbers Z&N
A9 4A   LDA #$4A ;hides 'LSR A'
D0 FD   BNE *-1
28      PLP</pre>||Clobbers A
|-
|-
!colspan="2"|14 bytes
!colspan="2"|10 bytes
|-
|-
|<pre>EA  ... NOP      &times; 14</pre>||No requirements
|<pre>08      PHP
48      PHA
A9 2A    LDA #$2A ;hides 'ROL A'
08      PHP
28      PLP
10 FB    BPL *-3
68      PLA
28      PLP</pre>||No requirements
|-
|-
|}
|}




=== 29 cycles ===
=== 50 cycles ===
{| class="wikitable testtable"
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>48      PHA
00 00... BRK 0    &times; 2</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
|<pre>A9      LDA #2
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
!colspan="2"|6 bytes
|-
|-
|<pre>A0 04   LDY #4
|<pre>A9 E9   LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
EA      NOP
EA      NOP
88      DEY
B0 FB   BCS *-3</pre>||Clobbers A, Z&N, C, and V
D0 FA   BNE *-4</pre>||Clobbers Y, and Z&N
|-
|-
|<pre>A2 04   LDX #4
|<pre>A2 07   LDX #7
EA      NOP
EA      NOP
CA      DEX
CA      DEX
D0 FA   BNE *-4</pre>||Clobbers X, and Z&N
D0 FC   BNE *-2</pre>||Clobbers X, and Z&N
|-
|-
|<pre>18      CLC
|<pre>A0 06   LDY #6
A9 2A   LDA #$2A ;hides 'ROL A'
EA      NOP
EA      NOP
90 FC    BCC *-2</pre>||Clobbers A, Z&N, and C
88      DEY
|-
10 FC    BPL *-2</pre>||Clobbers Y, and Z&N
|<pre>20 xx xx JSR @rts14
20 xx xx JSR @rts15</pre>||Requires @rts14, and @rts15; and writes in stack
|-
|<pre>A5 00    LDA $00
00 00... BRK 0    &times; 2</pre>||Clobbers A, and Z&N; requires dummy interrupt handler; and writes in stack
|-
|<pre>C5 00    CMP $00
00 00... BRK 0    &times; 2</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>24 00    BIT $00
00 00... BRK 0    &times; 2</pre>||Clobbers Z&N, and V; requires dummy interrupt handler; and writes in stack
|-
|<pre>EA      NOP
00 00    BRK 0
20 xx xx JSR @rts14</pre>||Requires dummy interrupt handler, and @rts14; and writes in stack
|-
|<pre>85 xx    STA @zptemp
00 00... BRK 0    &times; 2</pre>||Requires @zptemp, and dummy interrupt handler; and writes in stack
|-
|<pre>04 00    NOP $00
00 00... BRK 0    &times; 2</pre>||Requires dummy interrupt handler, and support for unofficial opcodes; and writes in stack
|-
|-
!colspan="2"|7 bytes
!colspan="2"|7 bytes
|-
|-
|<pre>08       PHP       \ &times; 2
|<pre>98       TYA
28      PLP       /
A0 09    LDY #9
20 xx xx JSR @rts15</pre>||Requires @rts15; and writes in stack
88       DEY
D0 FD    BNE *-1
A8       TAY</pre>||Clobbers A, and Z&N
|-
|-
|<pre>EA      NOP
!colspan="2"|8 bytes
00 00    BRK 0
08      PHP      \ &times; 2
28      PLP      /</pre>||Requires dummy interrupt handler; and writes in stack
|-
|-
|<pre>48      PHA
|<pre>48      PHA
20 xx xx JSR @rts12
38  ... SEC      × 2
20 xx xx JSR @rts14</pre>||Clobbers S; requires @rts12, and @rts14; and writes in stack
A9 4A    LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers Z&N, and C
|-
|-
|<pre>48       PHA
|<pre>08       PHP
68   ... PLA     &times; 3
38   ... SEC     × 2
20 xx xx JSR @rts14</pre>||Clobbers A, S, and Z&N; requires @rts14; and writes in stack
A9 4A    LDA #$4A ;hides 'LSR A'
|-
D0 FD    BNE *-1
!colspan="2"|8 bytes
28      PLP</pre>||Clobbers A
|-
|-
|<pre>08      PHP
|<pre>08      PHP
18      CLC
A2 05   LDX #5
A9 2A    LDA #$2A ;hides 'ROL A'
18      CLC
10 FC    BPL *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A2 03   LDX #3
EA      NOP
EA      NOP
CA      DEX
CA      DEX
D0 FA   BNE *-4
10 FC   BPL *-2
28      PLP</pre>||Clobbers X; and writes in stack
28      PLP</pre>||Clobbers X
|-
|-
|<pre>08      PHP
|<pre>08      PHP
A0 03   LDY #3
A0 06   LDY #6
EA      NOP
EA      NOP
88      DEY
88      DEY
D0 FA   BNE *-4
D0 FC   BNE *-2
28      PLP</pre>||Clobbers Y; and writes in stack
28      PLP</pre>||Clobbers Y
|-
|<pre>48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
18      CLC
10 FC    BPL *-2
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>24 00    BIT $00
20 xx xx JSR @rts12
20 xx xx JSR @rts14</pre>||Clobbers Z&N, and V; requires @rts12, and @rts14; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
20 xx xx JSR @rts12&times; 2</pre>||Clobbers Z&N; requires @zptemp, and @rts12; and writes in stack
|-
|<pre>85 xx    STA @zptemp
20 xx xx JSR @rts12
20 xx xx JSR @rts14</pre>||Requires @zptemp, @rts12, and @rts14; and writes in stack
|-
|<pre>EA      NOP
48      PHA
20 xx xx JSR @rts12&times; 2</pre>||Clobbers S; requires @rts12; and writes in stack
|-
|<pre>EA      NOP
68      PLA
48      PHA
68  ... PLA      &times; 5</pre>||Clobbers A, S, and Z&N
|-
|<pre>20 xx xx JSR @rts14
48  ... PHA      &times; 5</pre>||Clobbers S; requires @rts14; and writes in stack
|-
|<pre>04 00    NOP $00
20 xx xx JSR @rts12
20 xx xx JSR @rts14</pre>||Requires @rts12, @rts14, and support for unofficial opcodes; and writes in stack
|-
|-
!colspan="2"|9 bytes
!colspan="2"|9 bytes
|-
|<pre>20 xx xx JSR @rts12
08      PHP
26 00    ROL $00
66 00    ROR $00
28      PLP</pre>||Requires @rts12; and writes in stack
|-
|<pre>08      PHP
28      PLP
EA  ... NOP      &times; 4
20 xx xx JSR @rts14</pre>||Requires @rts14; and writes in stack
|-
|<pre>48      PHA
08      PHP
28      PLP
08      PHP
36 00    ROL $00,X
76 00    ROR $00,X
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|10 bytes
|-
|-
|<pre>08      PHP
|<pre>08      PHP
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X
76 00    ROR $00,X
28      PLP</pre>||Writes in stack
|-
|<pre>68      PLA
48      PHA
48      PHA
26 00   ROL $00
A9 E9   LDA #$E9 ;hides 'SBC #$2A'
66 00    ROR $00
2A      ROL A ;first loop only
36 00    ROL $00,X
B0 FC   BCS *-2
76 00   ROR $00,X</pre>||Clobbers A, and Z&N
68      PLA
28      PLP</pre>||No requirements
|-
|-
|<pre>E6 xx    INC @zptemp
|}
36 00    ROL $00,X \ &times; 2
 
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
 
|-
== Sanity checks ==
!colspan="2"|11 bytes
 
|-
It is possible to verify on compile time that no page wrap occurs,
|<pre>EA      NOP
by replacing all branches with these macros:
C5 00    CMP $00
<pre>.macro branch_check opc, dest
36 00    ROL $00,X \ &times; 2
    opc dest
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
    .assert >* = >(dest), warning, "branch_check: failed, crosses page"
|-
.endmacro
|<pre>EA      NOP
.macro bccnw dest
24 00    BIT $00
        branch_check bcc, dest
36 00    ROL $00,X \ &times; 2
.endmacro
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
.macro bcsnw dest
|-
        branch_check bcs, dest
|<pre>EA      NOP
.endmacro
04 00    NOP $00
.macro beqnw dest
36 00    ROL $00,X \ &times; 2
        branch_check beq, dest
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
.endmacro
|-
.macro bnenw dest
!colspan="2"|12 bytes
        branch_check bne, dest
|-
.endmacro
|<pre>EA      NOP
.macro bminw dest
4C xx xx JMP *+3
        branch_check bmi, dest
36 00    ROL $00,X \ &times; 2
.endmacro
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
.macro bplnw dest
|-
        branch_check bpl, dest
!colspan="2"|15 bytes
.endmacro
|-
.macro bvcnw dest
|<pre>18      CLC
        branch_check bvc, dest
90 00    BCC *+2
.endmacro
EA  ... NOP      &times; 12</pre>||Clobbers C
.macro bvsnw dest
|-
        branch_check bvs, dest
|<pre>B8      CLV
.endmacro</pre>
50 00    BVC *+2
EA  ... NOP      &times; 12</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 13</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 13</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|16 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 13</pre>||Not relocatable code
|-
|}
 
 
=== 30 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>68      PLA
00 00... BRK 0    &times; 2</pre>||Clobbers A, S, and Z&N; requires dummy interrupt handler; and writes in stack
|-
|<pre>A9      LDA #3
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>20 xx xx JSR @rts15&times; 2</pre>||Requires @rts15; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
00 00... BRK 0    &times; 2</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>68      PLA
A2 05    LDX #5
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>68      PLA
A0 05    LDY #5
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>EA      NOP
68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1</pre>||Clobbers A, S, Z&N, and C
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 05    LDX #5
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 05    LDY #5
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1</pre>||Clobbers A, Z&N, and C
|-
|<pre>EA      NOP
20 xx xx JSR @rts14&times; 2</pre>||Requires @rts14; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
18  ... CLC      &times; 2
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 04    LDX #4
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 04    LDY #4
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
18  ... CLC      &times; 2
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
20 xx xx JSR @rts12&times; 2</pre>||Clobbers S; requires @rts12; and writes in stack
|-
|<pre>EA      NOP
68  ... PLA      &times; 7</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
10 FD    BPL *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
|<pre>EA      NOP
68      PLA      \ &times; 4
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|11 bytes
|-
|<pre>EA  ... NOP      &times; 3
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|15 bytes
|-
|<pre>EA  ... NOP      &times; 15</pre>||No requirements
|-
|}
 
 
=== 31 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 06    LDX #6
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 06    LDY #6
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|6 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
00 00... BRK 0    &times; 2</pre>||Clobbers Z&N; requires @zptemp, and dummy interrupt handler; and writes in stack
|-
|<pre>EA      NOP
48      PHA
00 00... BRK 0    &times; 2</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>EA      NOP
20 xx xx JSR @rts14
20 xx xx JSR @rts15</pre>||Requires @rts14, and @rts15; and writes in stack
|-
|<pre>18      CLC
90 00    BCC *+2
00 00... BRK 0    &times; 2</pre>||Clobbers C; requires dummy interrupt handler; and writes in stack
|-
|<pre>B8      CLV
50 00    BVC *+2
00 00... BRK 0    &times; 2</pre>||Clobbers V; requires dummy interrupt handler; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
00 00    BRK 0
20 xx xx JSR @rts14</pre>||Requires dummy interrupt handler, and @rts14; and writes in stack
|-
|<pre>EA      NOP
85 xx    STA @zptemp
00 00... BRK 0    &times; 2</pre>||Requires @zptemp, and dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
20 xx xx JSR @rts14&times; 2</pre>||Clobbers S; requires @rts14; and writes in stack
|-
|<pre>EA      NOP
04 00    NOP $00
00 00... BRK 0    &times; 2</pre>||Requires dummy interrupt handler, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
28      PLP
20 xx xx JSR @rts12&times; 2</pre>||Requires @rts12; and writes in stack
|-
|<pre>EA      NOP
08      PHP      \ &times; 2
28      PLP      /
20 xx xx JSR @rts15</pre>||Requires @rts15; and writes in stack
|-
|<pre>24 00    BIT $00
20 xx xx JSR @rts14&times; 2</pre>||Clobbers Z&N, and V; requires @rts14; and writes in stack
|-
|<pre>85 xx    STA @zptemp
20 xx xx JSR @rts14&times; 2</pre>||Requires @zptemp, and @rts14; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
00 00    BRK 0
08      PHP      \ &times; 2
28      PLP      /</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>68      PLA
48      PHA
68  ... PLA      &times; 6</pre>||Clobbers A, S, and Z&N
|-
|<pre>48      PHA
08      PHP
A2 04    LDX #4
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 04    LDY #4
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>04 00    NOP $00
20 xx xx JSR @rts14&times; 2</pre>||Requires @rts14, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A4 00    LDY $00
A0 04    LDY #4
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 04    LDX #4
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>20 xx xx JSR @rts14
08      PHP
26 00    ROL $00
66 00    ROR $00
28      PLP</pre>||Requires @rts14; and writes in stack
|-
|<pre>48      PHA
08      PHP      \ &times; 4
28      PLP      /</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /
28      PLP</pre>||Writes in stack
|-
|<pre>68      PLA
48      PHA
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|11 bytes
|-
|<pre>EA      NOP
E6 xx    INC @zptemp
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
!colspan="2"|12 bytes
|-
|<pre>EA  ... NOP      &times; 2
C5 00    CMP $00
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>EA  ... NOP      &times; 2
24 00    BIT $00
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>EA  ... NOP      &times; 2
04 00    NOP $00
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
4C xx xx JMP *+3
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|16 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 13</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 13</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 14</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 14</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|17 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 14</pre>||Not relocatable code
|-
|}
 
 
=== 32 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #5
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 05    LDY #5 ;hides 'ORA zp'
88      DEY ;first loop only
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, and Z&N
|-
|<pre>A2 05    LDX #5 ;hides 'ORA zp'
CA      DEX ;first loop only
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, and Z&N
|-
|<pre>68  ... PLA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1</pre>||Clobbers A, S, Z&N, and C
|-
|<pre>48  ... PHA      &times; 2
00 00... BRK 0    &times; 2</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>EA      NOP
20 xx xx JSR @rts15&times; 2</pre>||Requires @rts15; and writes in stack
|-
|<pre>A9 2A    LDA #$2A ;hides 'ROL A'
EA  ... NOP      &times; 2
18      CLC
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C
|-
|<pre>EA  ... NOP      &times; 3
00 00... BRK 0    &times; 2</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A0 05    LDY #5
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A2 05    LDX #5
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>68      PLA
20 xx xx JSR @rts14&times; 2</pre>||Clobbers A, S, and Z&N; requires @rts14; and writes in stack
|-
|<pre>A0 FA    LDY #250 ;hides 'NOP'
EA      NOP
C8  ... INY      &times; 2
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N; and requires support for unofficial opcodes
|-
|<pre>A2 FA    LDX #250 ;hides 'NOP'
EA      NOP
E8  ... INX      &times; 2
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|8 bytes
|-
|<pre>A4 00    LDY $00
A0 04    LDY #4
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>A6 00    LDX $00
A2 04    LDX #4
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
20 xx xx JSR @rts14&times; 2</pre>||Requires @rts14; and writes in stack
|-
|<pre>68  ... PLA      &times; 8</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|9 bytes
|-
|<pre>48      PHA
A9 09    LDA #$09 ;hides 'ORA #$EA'
EA      NOP ;first loop only
08      PHP
28      PLP
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 03    LDY #3
C5 00    CMP $00
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 03    LDX #3
24 00    BIT $00
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
20 xx xx JSR @rts12&times; 2</pre>||Clobbers S; requires @rts12; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #0
20 xx xx JSR delay_256a_16_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks, and delay_256a_16_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
18  ... CLC      &times; 2
A9 2A    LDA #$2A ;hides 'ROL A'
10 FD    BPL *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
|<pre>EA  ... NOP      &times; 2
68      PLA      \ &times; 4
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|12 bytes
|-
|<pre>36 00    ROL $00,X
76 00    ROR $00,X
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /</pre>||Clobbers Z&N
|-
!colspan="2"|16 bytes
|-
|<pre>EA  ... NOP      &times; 16</pre>||No requirements
|-
|}
 
 
=== 33 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #6
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 06    LDX #6
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 06    LDY #6
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>18  ... CLC      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1</pre>||Clobbers A, Z&N, and C
|-
|<pre>08      PHP
28      PLP
00 00... BRK 0    &times; 2</pre>||Requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 05    LDY #5
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 05    LDX #5
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>48      PHA
20 xx xx JSR @rts15&times; 2</pre>||Clobbers S; requires @rts15; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>24 00    BIT $00
20 xx xx JSR @rts15&times; 2</pre>||Clobbers Z&N, and V; requires @rts15; and writes in stack
|-
|<pre>08      PHP
28      PLP
20 xx xx JSR @rts12
20 xx xx JSR @rts14</pre>||Requires @rts12, and @rts14; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
20 xx xx JSR @rts14
20 xx xx JSR @rts15</pre>||Requires @rts14, and @rts15; and writes in stack
|-
|<pre>85 xx    STA @zptemp
20 xx xx JSR @rts15&times; 2</pre>||Requires @zptemp, and @rts15; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
20 xx xx JSR @rts14&times; 2</pre>||Clobbers Z&N; requires @zptemp, and @rts14; and writes in stack
|-
|<pre>EA      NOP
48      PHA
20 xx xx JSR @rts14&times; 2</pre>||Clobbers S; requires @rts14; and writes in stack
|-
|<pre>04 00    NOP $00
20 xx xx JSR @rts15&times; 2</pre>||Requires @rts15, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>EA      NOP
08      PHP
28      PLP
20 xx xx JSR @rts12&times; 2</pre>||Requires @rts12; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP      \ &times; 2
28      PLP      /
20 xx xx JSR @rts15</pre>||Requires @rts15; and writes in stack
|-
|<pre>20 xx xx JSR @rts14
08      PHP
36 00    ROL $00,X
76 00    ROR $00,X
28      PLP</pre>||Requires @rts14; and writes in stack
|-
|<pre>EA      NOP
68      PLA
48      PHA
68  ... PLA      &times; 6</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP      \ &times; 2
28      PLP      /
08      PHP
36 00    ROL $00,X
76 00    ROR $00,X
28      PLP</pre>||Writes in stack
|-
|<pre>36 00    ROL $00,X
76 00    ROR $00,X
68      PLA      \ &times; 3
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|12 bytes
|-
|<pre>EA  ... NOP      &times; 2
E6 xx    INC @zptemp
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
!colspan="2"|13 bytes
|-
|<pre>C5 00    CMP $00
EA  ... NOP      &times; 3
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>24 00    BIT $00
EA  ... NOP      &times; 3
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 3
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|14 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 3
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|17 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 14</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 14</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 15</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 15</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|18 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 15</pre>||Not relocatable code
|-
|}
 
 
=== 34 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
88      DEY
30 FC    BMI *-2</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A2 06    LDX #6
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>68  ... PLA      &times; 2
00 00... BRK 0    &times; 2</pre>||Clobbers A, S, and Z&N; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 06    LDX #6
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>08      PHP
28      PLP
00 00    BRK 0
20 xx xx JSR @rts14</pre>||Requires dummy interrupt handler, and @rts14; and writes in stack
|-
|<pre>48      PHA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
00 00... BRK 0    &times; 2</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
A9      LDA #0
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #0
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 2
20 xx xx JSR @rts15&times; 2</pre>||Requires @rts15; and writes in stack
|-
|<pre>08      PHP
A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>EA  ... NOP      &times; 4
00 00... BRK 0    &times; 2</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
20 xx xx JSR @rts14&times; 2</pre>||Clobbers S; requires @rts14; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9 2A    LDA #$2A ;hides 'ROL A'
18      CLC
10 FC    BPL *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|<pre>EA      NOP
68  ... PLA      &times; 8</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|11 bytes
|-
|<pre>EA  ... NOP      &times; 3
68      PLA      \ &times; 4
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|12 bytes
|-
|<pre>26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|17 bytes
|-
|<pre>EA  ... NOP      &times; 17</pre>||No requirements
|-
|}
 
 
=== 35 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #8
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
88  ... DEY      &times; 2
30 FB    BMI *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 2A    LDA #$2A ;hides 'ROL A'
08      PHP
28      PLP
10 FB    BPL *-3</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>A2 F8    LDX #248 ;hides 'SED'
E8  ... INX      &times; 2
D0 FB    BNE *-3</pre>||Clobbers X, Z&N, and D
|-
|<pre>68      PLA
A2 06    LDX #6
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>68      PLA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1</pre>||Clobbers A, S, Z&N, and C
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 06    LDX #6
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1</pre>||Clobbers A, Z&N, and C
|-
|<pre>EA      NOP
08      PHP
28      PLP
00 00... BRK 0    &times; 2</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>68      PLA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28      PLP</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
A9      LDA #1
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #1
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 05    LDX #5
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 05    LDY #5
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>08      PHP
28      PLP
20 xx xx JSR @rts14&times; 2</pre>||Requires @rts14; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
20 xx xx JSR @rts15&times; 2</pre>||Clobbers Z&N; requires @zptemp, and @rts15; and writes in stack
|-
|<pre>EA      NOP
48      PHA
20 xx xx JSR @rts15&times; 2</pre>||Clobbers S; requires @rts15; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
|<pre>68      PLA
48      PHA
68  ... PLA      &times; 7</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|10 bytes
|-
|<pre>68      PLA      \ &times; 5
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|13 bytes
|-
|<pre>E6 xx    INC @zptemp
EA  ... NOP      &times; 3
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
!colspan="2"|14 bytes
|-
|<pre>C5 00    CMP $00
36 00    ROL $00,X
76 00    ROR $00,X
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /</pre>||Clobbers Z&N, and C
|-
|<pre>24 00    BIT $00
36 00    ROL $00,X
76 00    ROR $00,X
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /</pre>||Clobbers Z&N, and V
|-
|<pre>04 00    NOP $00
36 00    ROL $00,X
76 00    ROR $00,X
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|15 bytes
|-
|<pre>4C xx xx JMP *+3
36 00    ROL $00,X
76 00    ROR $00,X
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|18 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 15</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 15</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 16</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 16</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|19 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 16</pre>||Not relocatable code
|-
|}
 
 
=== 36 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 07    LDX #7
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 07    LDY #7
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
B0 FC    BCS *-2</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|6 bytes
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|7 bytes
|-
|<pre>48      PHA
08      PHP
28      PLP
00 00... BRK 0    &times; 2</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
A9      LDA #2
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #2
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
EA      NOP
90 FC    BCC *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 04    LDY #4
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 04    LDX #4
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
EA      NOP
90 FC    BCC *-2
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>08      PHP
28      PLP
20 xx xx JSR @rts14
20 xx xx JSR @rts15</pre>||Requires @rts14, and @rts15; and writes in stack
|-
|<pre>08      PHP
24 00    BIT $00
28      PLP
00 00... BRK 0    &times; 2</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
20 xx xx JSR @rts15&times; 2</pre>||Clobbers S; requires @rts15; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>20 xx xx JSR @rts12&times; 3</pre>||Requires @rts12; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
20 xx xx JSR @rts15&times; 2</pre>||Requires @rts15; and writes in stack
|-
|<pre>68  ... PLA      &times; 9</pre>||Clobbers A, S, and Z&N
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
20 xx xx JSR @rts14&times; 2</pre>||Clobbers S; requires @rts14; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
18      CLC
10 FC    BPL *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|18 bytes
|-
|<pre>EA  ... NOP      &times; 18</pre>||No requirements
|-
|}
 
 
=== 37 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #10
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>00 00    BRK 0
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
A0 88    LDY #136 ;hides 'DEY'
88      DEY
30 FC    BMI *-2</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>A0 04    LDY #4
68      PLA
88      DEY
D0 FA    BNE *-4</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>A2 04    LDX #4
68      PLA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A0 04    LDY #4
EA  ... NOP      &times; 2
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 04    LDX #4
EA  ... NOP      &times; 2
CA      DEX
D0 F9    BNE *-5</pre>||Clobbers X, and Z&N
|-
|<pre>A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2</pre>||Clobbers A, Z&N, and C
|-
|<pre>A9 09    LDA #$09 ;hides 'ORA #$EA'
EA      NOP ;first loop only
00 00    BRK 0
10 FA    BPL *-4</pre>||Clobbers A, and Z&N; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
A9      LDA #3
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #3
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
28      PLP
20 xx xx JSR @rts15&times; 2</pre>||Requires @rts15; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
28      PLP
00 00... BRK 0    &times; 2</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 05    LDY #5
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 05    LDX #5
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>EA      NOP
08      PHP
28      PLP
20 xx xx JSR @rts14&times; 2</pre>||Requires @rts14; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
18  ... CLC      &times; 2
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
|<pre>EA      NOP
68      PLA
48      PHA
68  ... PLA      &times; 7</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|11 bytes
|-
|<pre>EA      NOP
68      PLA      \ &times; 5
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|14 bytes
|-
|<pre>C5 00    CMP $00
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>24 00    BIT $00
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>E6 xx    INC @zptemp
36 00    ROL $00,X
76 00    ROR $00,X
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /</pre>||Clobbers Z&N; and requires @zptemp
|-
|<pre>04 00    NOP $00
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|15 bytes
|-
|<pre>4C xx xx JMP *+3
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|19 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 16</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 16</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 17</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 17</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|20 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 17</pre>||Not relocatable code
|-
|}
 
 
=== 38 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #11
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A0 07    LDY #7
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA      NOP
A2 07    LDX #7
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>38      SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA      NOP ;first loop only
10 FA    BPL *-4</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2</pre>||Clobbers A, S, Z&N, and C
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 06    LDY #6
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 06    LDX #6
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2</pre>||Clobbers A, Z&N, and C
|-
|<pre>20 xx xx JSR @rts12
00 00... BRK 0    &times; 2</pre>||Requires dummy interrupt handler, and @rts12; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
68  ... PLA      &times; 9</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|12 bytes
|-
|<pre>68      PLA      \ &times; 2
48      PHA      /
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|13 bytes
|-
|<pre>EA      NOP
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|19 bytes
|-
|<pre>EA  ... NOP      &times; 19</pre>||No requirements
|-
|}
 
 
=== 39 cycles ===
{| class="wikitable testtable"
!colspan="2"|4 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|6 bytes
|-
|<pre>00 00... BRK 0    &times; 3</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
A0 07    LDY #7
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A2 07    LDX #7
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 07    LDX #7
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 07    LDY #7
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #5
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #5
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 05    LDY #5 ;hides 'ORA zp'
88      DEY ;first loop only
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A, and Y; and writes in stack
|-
|<pre>08      PHP
A2 05    LDX #5 ;hides 'ORA zp'
CA      DEX ;first loop only
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A, and X; and writes in stack
|-
|<pre>A9 09    LDA #$09 ;hides 'ORA #$EA'
EA      NOP ;first loop only
20 xx xx JSR @rts14
10 F9    BPL *-5</pre>||Clobbers A, and Z&N; requires @rts14; and writes in stack
|-
|<pre>68  ... PLA      &times; 2
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28      PLP</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>EA      NOP
08      PHP
28      PLP
20 xx xx JSR @rts15&times; 2</pre>||Requires @rts15; and writes in stack
|-
|<pre>08      PHP
A9 2A    LDA #$2A ;hides 'ROL A'
EA  ... NOP      &times; 2
18      CLC
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 2A    LDA #$2A ;hides 'ROL A'
EA  ... NOP      &times; 2
18      CLC
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 05    LDX #5
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 05    LDY #5
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>08      PHP
A0 FA    LDY #250 ;hides 'NOP'
EA      NOP
C8  ... INY      &times; 2
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
A2 FA    LDX #250 ;hides 'NOP'
EA      NOP
E8  ... INX      &times; 2
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
A6 00    LDX $00
A2 04    LDX #4
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 04    LDY #4
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
28      PLP
20 xx xx JSR @rts14&times; 2</pre>||Requires @rts14; and writes in stack
|-
|<pre>48      PHA
20 xx xx JSR @rts12&times; 3</pre>||Clobbers S; requires @rts12; and writes in stack
|-
|<pre>68      PLA
48      PHA
68  ... PLA      &times; 8</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|11 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA  ... NOP      &times; 2
68      PLA      \ &times; 5
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|14 bytes
|-
|<pre>C5 00    CMP $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>24 00    BIT $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>E6 xx    INC @zptemp
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
|<pre>04 00    NOP $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|15 bytes
|-
|<pre>4C xx xx JMP *+3
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|20 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 17</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 17</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 18</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 18</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|21 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 18</pre>||Not relocatable code
|-
|}
 
 
=== 40 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #13
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 05    LDY #5 ;hides 'ORA zp'
EA      NOP
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, and Z&N
|-
|<pre>A2 05    LDX #5 ;hides 'ORA zp'
EA      NOP
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, and Z&N
|-
|<pre>68      PLA
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
B0 FC    BCS *-2</pre>||Clobbers A, S, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A0 07    LDY #7
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A2 07    LDX #7
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA      NOP ;first loop only
10 FA    BPL *-4</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>00 00... BRK 0    &times; 2
20 xx xx JSR @rts14</pre>||Requires dummy interrupt handler, and @rts14; and writes in stack
|-
|<pre>EA      NOP
68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2</pre>||Clobbers A, S, Z&N, and C
|-
|<pre>08      PHP
A9      LDA #6
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #6
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
18  ... CLC      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 06    LDY #6
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 06    LDX #6
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
18  ... CLC      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2</pre>||Clobbers A, Z&N, and C
|-
|<pre>00 00... BRK 0    &times; 2
08      PHP      \ &times; 2
28      PLP      /</pre>||Requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>68  ... PLA      &times; 10</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|12 bytes
|-
|<pre>36 00    ROL $00,X
76 00    ROR $00,X
68      PLA      \ &times; 4
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|14 bytes
|-
|<pre>EA  ... NOP      &times; 2
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|20 bytes
|-
|<pre>EA  ... NOP      &times; 20</pre>||No requirements
|-
|}
 
 
=== 41 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 08    LDY #8
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 08    LDX #8
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 88    LDY #136 ;hides 'DEY'
88      DEY
30 FC    BMI *-2
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>EA      NOP
00 00... BRK 0    &times; 3</pre>||Requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48      PHA
08      PHP
A2 06    LDX #6
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A6 00    LDX $00
A2 06    LDX #6
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>20 xx xx JSR @rts12
20 xx xx JSR @rts14
20 xx xx JSR @rts15</pre>||Requires @rts12, @rts14, and @rts15; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #0
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA      NOP
68      PLA
48      PHA
68  ... PLA      &times; 8</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 3
68      PLA      \ &times; 5
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|14 bytes
|-
|<pre>E6 xx    INC @zptemp
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
!colspan="2"|15 bytes
|-
|<pre>EA      NOP
C5 00    CMP $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>EA      NOP
24 00    BIT $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>EA      NOP
04 00    NOP $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|16 bytes
|-
|<pre>EA      NOP
4C xx xx JMP *+3
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|21 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 18</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 18</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 19</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 19</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|22 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 19</pre>||Not relocatable code
|-
|}
 
 
=== 42 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>A9      LDA #15
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|7 bytes
|-
|<pre>EA      NOP
A2 05    LDX #5 ;hides 'ORA zp'
EA      NOP
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, and Z&N
|-
|<pre>EA      NOP
A0 05    LDY #5 ;hides 'ORA zp'
EA      NOP
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, and Z&N
|-
|<pre>48  ... PHA      &times; 2
A2 07    LDX #7
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A0 07    LDY #7
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
00 00... BRK 0    &times; 3</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
A9      LDA #8
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #8
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A9 2A    LDA #$2A ;hides 'ROL A'
08      PHP
28      PLP
10 FB    BPL *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A2 F8    LDX #248 ;hides 'SED'
E8  ... INX      &times; 2
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 88    LDY #136 ;hides 'DEY'
88  ... DEY      &times; 2
30 FB    BMI *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
A0 07    LDY #7
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A2 07    LDX #7
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>48      PHA
A9 2A    LDA #$2A ;hides 'ROL A'
08      PHP
28      PLP
10 FB    BPL *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>24 00    BIT $00
00 00... BRK 0    &times; 3</pre>||Clobbers Z&N, and V; requires dummy interrupt handler; and writes in stack
|-
|<pre>EA      NOP
00 00... BRK 0    &times; 2
20 xx xx JSR @rts14</pre>||Requires dummy interrupt handler, and @rts14; and writes in stack
|-
|<pre>85 xx    STA @zptemp
00 00... BRK 0    &times; 3</pre>||Requires @zptemp, and dummy interrupt handler; and writes in stack
|-
|<pre>04 00    NOP $00
00 00... BRK 0    &times; 3</pre>||Requires dummy interrupt handler, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>20 xx xx JSR @rts12
20 xx xx JSR @rts15&times; 2</pre>||Requires @rts12, and @rts15; and writes in stack
|-
|<pre>20 xx xx JSR @rts14&times; 3</pre>||Requires @rts14; and writes in stack
|-
|<pre>EA      NOP
00 00... BRK 0    &times; 2
08      PHP      \ &times; 2
28      PLP      /</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #1
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA      NOP
68  ... PLA      &times; 10</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|12 bytes
|-
|<pre>68      PLA      \ &times; 6
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|15 bytes
|-
|<pre>EA  ... NOP      &times; 3
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|21 bytes
|-
|<pre>EA  ... NOP      &times; 21</pre>||No requirements
|-
|}
 
 
=== 43 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, S, Z&N, and C
|-
|<pre>A9      LDA #16
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 06    LDY #6
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 06    LDX #6
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
B0 FC    BCS *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A2 07    LDX #7
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 07    LDY #7
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
B0 FC    BCS *-2
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
00 00... BRK 0    &times; 3</pre>||Requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>20 xx xx JSR @rts15
20 xx xx JSR @rts14&times; 2</pre>||Requires @rts14, and @rts15; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #2
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
EA      NOP
90 FC    BCC *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>68      PLA
48      PHA
68  ... PLA      &times; 9</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|13 bytes
|-
|<pre>A9 09    LDA #$09 ;hides 'ORA #$EA'
EA      NOP ;first loop only
EA  ... NOP      &times; 8
10 F4    BPL *-10</pre>||Clobbers A, and Z&N
|-
!colspan="2"|15 bytes
|-
|<pre>EA      NOP
E6 xx    INC @zptemp
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
!colspan="2"|16 bytes
|-
|<pre>EA  ... NOP      &times; 2
C5 00    CMP $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>EA  ... NOP      &times; 2
24 00    BIT $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>EA  ... NOP      &times; 2
04 00    NOP $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|17 bytes
|-
|<pre>EA  ... NOP      &times; 2
4C xx xx JMP *+3
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|22 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 19</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 19</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 20</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 20</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|23 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 20</pre>||Not relocatable code
|-
|}
 
 
=== 44 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #17
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
EA      NOP
88      DEY
30 FB    BMI *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
10 FB    BPL *-3</pre>||Clobbers A, Z&N, and C
|-
|<pre>48      PHA
A2 08    LDX #8
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 08    LDX #8
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>08      PHP
A9      LDA #10
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #10
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>00 00    BRK 0
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28      PLP</pre>||Clobbers A; requires dummy interrupt handler; and writes in stack
|-
|<pre>00 00    BRK 0
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
00 00... BRK 0    &times; 3</pre>||Clobbers Z&N; requires @zptemp, and dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 88    LDY #136 ;hides 'DEY'
88      DEY
30 FC    BMI *-2
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
|<pre>EA      NOP
48      PHA
00 00... BRK 0    &times; 3</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 04    LDY #4
EA  ... NOP      &times; 2
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 04    LDX #4
EA  ... NOP      &times; 2
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>20 xx xx JSR @rts14
20 xx xx JSR @rts15&times; 2</pre>||Requires @rts14, and @rts15; and writes in stack
|-
|<pre>48      PHA
A9 09    LDA #$09 ;hides 'ORA #$EA'
EA      NOP ;first loop only
00 00    BRK 0
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N; requires dummy interrupt handler; and writes in stack
|-
|<pre>18      CLC
90 00    BCC *+2
00 00... BRK 0    &times; 3</pre>||Clobbers C; requires dummy interrupt handler; and writes in stack
|-
|<pre>B8      CLV
50 00    BVC *+2
00 00... BRK 0    &times; 3</pre>||Clobbers V; requires dummy interrupt handler; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
00 00... BRK 0    &times; 2
20 xx xx JSR @rts14</pre>||Requires dummy interrupt handler, and @rts14; and writes in stack
|-
|<pre>EA      NOP
85 xx    STA @zptemp
00 00... BRK 0    &times; 3</pre>||Requires @zptemp, and dummy interrupt handler; and writes in stack
|-
|<pre>EA      NOP
04 00    NOP $00
00 00... BRK 0    &times; 3</pre>||Requires dummy interrupt handler, and support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #3
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP      \ &times; 2
28      PLP      /
20 xx xx JSR @rts15&times; 2</pre>||Requires @rts15; and writes in stack
|-
|<pre>EA      NOP
20 xx xx JSR @rts14&times; 3</pre>||Requires @rts14; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
00 00... BRK 0    &times; 2
08      PHP      \ &times; 2
28      PLP      /</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
|<pre>68  ... PLA      &times; 11</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|13 bytes
|-
|<pre>EA      NOP
68      PLA      \ &times; 6
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|16 bytes
|-
|<pre>26 00    ROL $00  \ &times; 2
66 00    ROR $00  /
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|22 bytes
|-
|<pre>EA  ... NOP      &times; 22</pre>||No requirements
|-
|}
 
 
=== 45 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #18
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 08    LDY #8
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 08    LDX #8
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>EA      NOP
68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, S, Z&N, and C
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 08    LDX #8
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 08    LDY #8
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C
|-
|<pre>08      PHP
A9      LDA #11
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #11
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA      NOP ;first loop only
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 07    LDX #7
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 07    LDY #7
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA      NOP ;first loop only
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
00 00... BRK 0    &times; 3</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
68      PLA
48      PHA
68  ... PLA      &times; 9</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|14 bytes
|-
|<pre>36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /
68      PLA      \ &times; 3
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|16 bytes
|-
|<pre>EA  ... NOP      &times; 2
E6 xx    INC @zptemp
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
!colspan="2"|17 bytes
|-
|<pre>EA  ... NOP      &times; 3
C5 00    CMP $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>EA  ... NOP      &times; 3
24 00    BIT $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>EA  ... NOP      &times; 3
04 00    NOP $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|18 bytes
|-
|<pre>EA  ... NOP      &times; 3
4C xx xx JMP *+3
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|23 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 20</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 20</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 21</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 21</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|24 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 21</pre>||Not relocatable code
|-
|}
 
 
=== 46 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 09    LDY #9
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 09    LDX #9
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9      LDA #19
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>68      PLA
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
28      PLP
00 00... BRK 0    &times; 3</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 07    LDY #7
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 07    LDX #7
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A4 00    LDY $00
A0 07    LDY #7
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 07    LDX #7
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #5
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
20 xx xx JSR @rts14
20 xx xx JSR @rts15&times; 2</pre>||Requires @rts14, and @rts15; and writes in stack
|-
|<pre>48      PHA
A9 09    LDA #$09 ;hides 'ORA #$EA'
EA      NOP ;first loop only
20 xx xx JSR @rts14
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N; requires @rts14; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
A9 2A    LDA #$2A ;hides 'ROL A'
EA  ... NOP      &times; 2
18      CLC
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
68  ... PLA      &times; 11</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|14 bytes
|-
|<pre>EA  ... NOP      &times; 2
68      PLA      \ &times; 6
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|16 bytes
|-
|<pre>26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|23 bytes
|-
|<pre>EA  ... NOP      &times; 23</pre>||No requirements
|-
|}
 
 
=== 47 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #20
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68  ... PLA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, S, Z&N, and C
|-
!colspan="2"|7 bytes
|-
|<pre>BA      TSX
68      PLA
9A      TXS
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, X, Z&N, and C
|-
|<pre>00 00    BRK 0
A0 88    LDY #136 ;hides 'DEY'
88      DEY
30 FC    BMI *-2</pre>||Clobbers Y, and Z&N; requires dummy interrupt handler; and writes in stack
|-
|<pre>00 00    BRK 0
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A2 08    LDX #8
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A0 08    LDY #8
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>EA      NOP
68      PLA
A2 08    LDX #8
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>EA      NOP
68      PLA
A0 08    LDY #8
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>08      PHP
A9      LDA #13
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #13
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 3
A0 08    LDY #8
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A2 08    LDX #8
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>08      PHP
A2 05    LDX #5 ;hides 'ORA zp'
EA      NOP
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A, and X; and writes in stack
|-
|<pre>08      PHP
A0 05    LDY #5 ;hides 'ORA zp'
EA      NOP
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A, and Y; and writes in stack
|-
|<pre>A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
10 FB    BPL *-3</pre>||Clobbers A, Z&N, and C
|-
|<pre>68      PLA
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
B0 FC    BCS *-2
28      PLP</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA      NOP ;first loop only
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 07    LDX #7
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 07    LDY #7
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA      NOP ;first loop only
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
28      PLP
00 00... BRK 0    &times; 2
20 xx xx JSR @rts14</pre>||Requires dummy interrupt handler, and @rts14; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
00 00... BRK 0    &times; 3</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #6
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
18  ... CLC      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>68      PLA
48      PHA
68  ... PLA      &times; 10</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|14 bytes
|-
|<pre>36 00    ROL $00,X
76 00    ROR $00,X
68      PLA      \ &times; 5
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|17 bytes
|-
|<pre>EA  ... NOP      &times; 3
E6 xx    INC @zptemp
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
!colspan="2"|18 bytes
|-
|<pre>C5 00    CMP $00
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>24 00    BIT $00
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>04 00    NOP $00
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|19 bytes
|-
|<pre>4C xx xx JMP *+3
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|24 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 21</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 21</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 22</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 22</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|25 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 22</pre>||Not relocatable code
|-
|}
 
 
=== 48 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #21
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A0 09    LDY #9
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA      NOP
A2 09    LDX #9
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 08    LDY #8
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 08    LDX #8
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>EA      NOP
68      PLA
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>68  ... PLA      &times; 12</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|15 bytes
|-
|<pre>EA  ... NOP      &times; 3
68      PLA      \ &times; 6
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|16 bytes
|-
|<pre>36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|24 bytes
|-
|<pre>EA  ... NOP      &times; 24</pre>||No requirements
|-
|}
 
 
=== 49 cycles ===
{| class="wikitable testtable"
!colspan="2"|4 bytes
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
30 FD    BMI *-1</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #22
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 06    LDX #6
48      PHA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
90 FC    BCC *-2</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 09    LDX #9
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
08      PHP
28      PLP
90 FB    BCC *-3</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
24 00    BIT $00
90 FB    BCC *-3</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
90 FB    BCC *-3</pre>||Clobbers A, Z&N, and C; and requires @zptemp
|-
|<pre>48      PHA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
|<pre>EA      NOP
68  ... PLA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, S, Z&N, and C
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
90 FB    BCC *-3</pre>||Clobbers A, Z&N, and C; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #15
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #15
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>26 00    ROL $00
66 00    ROR $00
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|9 bytes
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 07    LDY #7
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 07    LDX #7
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
28      PLP
00 00... BRK 0    &times; 3</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #8
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
A9 2A    LDA #$2A ;hides 'ROL A'
08      PHP
28      PLP
10 FB    BPL *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA      NOP
68      PLA
48      PHA
68  ... PLA      &times; 10</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|14 bytes
|-
|<pre>68      PLA      \ &times; 7
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|18 bytes
|-
|<pre>C5 00    CMP $00
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>24 00    BIT $00
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>E6 xx    INC @zptemp
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /
36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
|<pre>04 00    NOP $00
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|19 bytes
|-
|<pre>4C xx xx JMP *+3
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|25 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 22</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 22</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 23</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 23</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|26 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 23</pre>||Not relocatable code
|-
|}
 
 
=== 50 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #23
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 07    LDY #7
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 07    LDX #7
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
EA      NOP
B0 FB    BCS *-3</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts12
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>68      PLA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>68  ... PLA      &times; 2
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, S, Z&N, and C
|-
|<pre>08      PHP
A9      LDA #16
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #16
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A2 06    LDX #6
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 06    LDY #6
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
68      PLA
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
B0 FC    BCS *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA      NOP
68  ... PLA      &times; 12</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|15 bytes
|-
|<pre>68      PLA
48      PHA
A9 09    LDA #$09 ;hides 'ORA #$EA'
EA      NOP ;first loop only
EA  ... NOP      &times; 8
10 F4    BPL *-10</pre>||Clobbers A, and Z&N
|-
!colspan="2"|17 bytes
|-
|<pre>EA      NOP
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|25 bytes
|-
|<pre>EA  ... NOP      &times; 25</pre>||No requirements
|-
|}
 
 
=== 51 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 0A    LDX #10
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 0A    LDY #10
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>20 xx xx JSR @rts12
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>68  ... PLA      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, S, Z&N, and C
|-
|<pre>08      PHP
A9      LDA #17
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #17
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
10 FB    BPL *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 88    LDY #136 ;hides 'DEY'
EA      NOP
88      DEY
30 FB    BMI *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
10 FB    BPL *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>36 00    ROL $00,X
76 00    ROR $00,X
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C
|-
|<pre>48      PHA
08      PHP
A2 08    LDX #8
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A6 00    LDX $00
A2 08    LDX #8
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>20 xx xx JSR @rts12
00 00... BRK 0    &times; 3</pre>||Requires dummy interrupt handler, and @rts12; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #10
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>00 00    BRK 0
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68      PLA
28      PLP</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
10 FC    BPL *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>68      PLA
48      PHA
68  ... PLA      &times; 11</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|15 bytes
|-
|<pre>EA      NOP
68      PLA      \ &times; 7
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|18 bytes
|-
|<pre>C5 00    CMP $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>24 00    BIT $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>E6 xx    INC @zptemp
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
|<pre>04 00    NOP $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|19 bytes
|-
|<pre>4C xx xx JMP *+3
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|26 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 23</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 23</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 24</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 24</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|27 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 24</pre>||Not relocatable code
|-
|}
 
 
=== 52 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>48      PHA
A0 88    LDY #136 ;hides 'DEY'
30 FD    BMI *-1</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>A9      LDA #25
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A4 00    LDY $00
A0 88    LDY #136 ;hides 'DEY'
30 FD    BMI *-1</pre>||Clobbers Y, and Z&N
|-
|<pre>00 00    BRK 0
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>EA      NOP
A2 07    LDX #7
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>38      SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA      NOP ;first loop only
EA      NOP
10 F9    BPL *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
90 FC    BCC *-2</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #18
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #18
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts12
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>00 00... BRK 0    &times; 4</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
|<pre>68  ... PLA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
10 FB    BPL *-3</pre>||Clobbers A, S, Z&N, and C
|-
!colspan="2"|9 bytes
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 08    LDY #8
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 08    LDX #8
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>18      CLC
A9 4A    LDA #$4A ;hides 'LSR A'
36 00    ROL $00,X
76 00    ROR $00,X
90 F9    BCC *-5</pre>||Clobbers A, Z&N, and C
|-
|<pre>08      PHP
48      PHA
A9      LDA #11
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA      NOP ;first loop only
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>68  ... PLA      &times; 13</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|16 bytes
|-
|<pre>36 00    ROL $00,X \ &times; 2
76 00    ROR $00,X /
68      PLA      \ &times; 4
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|18 bytes
|-
|<pre>EA  ... NOP      &times; 2
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|26 bytes
|-
|<pre>EA  ... NOP      &times; 26</pre>||No requirements
|-
|}
 
 
=== 53 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>68      PLA
A0 88    LDY #136 ;hides 'DEY'
30 FD    BMI *-1</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>A9      LDA #26
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 0A    LDX #10
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 0A    LDY #10
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FA    BMI *-4</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>A9 2A    LDA #$2A ;hides 'ROL A'
00 00    BRK 0
10 FB    BPL *-3</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A2 09    LDX #9
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 09    LDY #9
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>20 xx xx JSR @rts14
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>68      PLA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
90 FC    BCC *-2</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #19
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #19
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
|<pre>68      PLA      \ &times; 2
48      PHA      /
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|14 bytes
|-
|<pre>EA      NOP
68      PLA
48      PHA
68  ... PLA      &times; 11</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|16 bytes
|-
|<pre>EA  ... NOP      &times; 2
68      PLA      \ &times; 7
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|18 bytes
|-
|<pre>E6 xx    INC @zptemp
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
!colspan="2"|19 bytes
|-
|<pre>EA      NOP
C5 00    CMP $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>EA      NOP
24 00    BIT $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>EA      NOP
04 00    NOP $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|20 bytes
|-
|<pre>EA      NOP
4C xx xx JMP *+3
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|27 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 24</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 24</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 25</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 25</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|28 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 25</pre>||Not relocatable code
|-
|}
 
 
=== 54 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #27
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>E6 xx    INC @zptemp
A0 88    LDY #136 ;hides 'DEY'
30 FD    BMI *-1</pre>||Clobbers Y, and Z&N; and requires @zptemp
|-
|<pre>48      PHA
A0 0A    LDY #10
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A2 0A    LDX #10
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
68      PLA
88      DEY
30 FB    BMI *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
10 FB    BPL *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 0A    LDX #10
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 0A    LDY #10
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C
|-
|<pre>08      PHP
A9      LDA #20
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #20
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>68  ... PLA      &times; 2
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
BA      TSX
68      PLA
9A      TXS
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers A, and X; and writes in stack
|-
|<pre>EA      NOP
00 00... BRK 0    &times; 4</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 08    LDY #8
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 08    LDX #8
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #13
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
10 FB    BPL *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A0 08    LDY #8
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A2 08    LDX #8
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
10 FB    BPL *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA      NOP ;first loop only
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|14 bytes
|-
|<pre>EA      NOP
68  ... PLA      &times; 13</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|16 bytes
|-
|<pre>36 00    ROL $00,X
76 00    ROR $00,X
68      PLA      \ &times; 6
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|19 bytes
|-
|<pre>EA  ... NOP      &times; 3
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|27 bytes
|-
|<pre>EA  ... NOP      &times; 27</pre>||No requirements
|-
|}
 
 
=== 55 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, and C
|-
|<pre>A0 F8    LDY #248 ;hides 'SED'
C8      INY
D0 FC    BNE *-2</pre>||Clobbers Y, Z&N, and D
|-
|<pre>A2 F8    LDX #248 ;hides 'SED'
E8      INX
D0 FC    BNE *-2</pre>||Clobbers X, Z&N, and D
|-
!colspan="2"|6 bytes
|-
|<pre>48  ... PHA      &times; 2
A0 88    LDY #136 ;hides 'DEY'
30 FD    BMI *-1</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>A0 06    LDY #6
68      PLA
88      DEY
D0 FA    BNE *-4</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>A2 06    LDX #6
68      PLA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>A2 06    LDX #6
EA  ... NOP      &times; 2
CA      DEX
D0 F9    BNE *-5</pre>||Clobbers X, and Z&N
|-
|<pre>A0 06    LDY #6
EA  ... NOP      &times; 2
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #21
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #21
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A0 09    LDY #9
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 09    LDX #9
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|14 bytes
|-
|<pre>68      PLA
48      PHA
68  ... PLA      &times; 12</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|16 bytes
|-
|<pre>A9 09    LDA #$09 ;hides 'ORA #$EA'
EA      NOP ;first loop only
EA  ... NOP      &times; 11
10 F1    BPL *-13</pre>||Clobbers A, and Z&N
|-
!colspan="2"|19 bytes
|-
|<pre>EA      NOP
E6 xx    INC @zptemp
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
!colspan="2"|20 bytes
|-
|<pre>EA  ... NOP      &times; 2
C5 00    CMP $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>EA  ... NOP      &times; 2
24 00    BIT $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>EA  ... NOP      &times; 2
04 00    NOP $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|21 bytes
|-
|<pre>EA  ... NOP      &times; 2
4C xx xx JMP *+3
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|28 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 25</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 25</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 26</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 26</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|29 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 26</pre>||Not relocatable code
|-
|}
 
 
=== 56 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 0B    LDY #11
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 0B    LDX #11
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9      LDA #29
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>08      PHP
A0 88    LDY #136 ;hides 'DEY'
30 FD    BMI *-1
28      PLP</pre>||Clobbers Y; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts14
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2</pre>||Clobbers A, Z&N, C, and V; and requires @zptemp
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
10 FB    BPL *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #22
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #22
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C
|-
|<pre>48      PHA
08      PHP
A2 09    LDX #9
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
24 00    BIT $00
90 FB    BCC *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A2 06    LDX #6
24 00    BIT $00
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
08      PHP
28      PLP
90 FB    BCC *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #15
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|14 bytes
|-
|<pre>68  ... PLA      &times; 14</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|16 bytes
|-
|<pre>68      PLA      \ &times; 8
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|20 bytes
|-
|<pre>26 00    ROL $00  \ &times; 2
66 00    ROR $00  /
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|28 bytes
|-
|<pre>EA  ... NOP      &times; 28</pre>||No requirements
|-
|}
 
 
=== 57 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #30
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 08    LDY #8
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 08    LDX #8
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #23
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #23
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
EA      NOP
B0 FB    BCS *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A2 07    LDX #7
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 07    LDY #7
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
EA      NOP
B0 FB    BCS *-3
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>48      PHA
A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts12
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #16
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|15 bytes
|-
|<pre>EA      NOP
68      PLA
48      PHA
68  ... PLA      &times; 12</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|17 bytes
|-
|<pre>EA      NOP
A9 09    LDA #$09 ;hides 'ORA #$EA'
EA      NOP ;first loop only
EA  ... NOP      &times; 11
10 F1    BPL *-13</pre>||Clobbers A, and Z&N
|-
!colspan="2"|20 bytes
|-
|<pre>EA  ... NOP      &times; 2
E6 xx    INC @zptemp
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
!colspan="2"|21 bytes
|-
|<pre>EA  ... NOP      &times; 3
C5 00    CMP $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>EA  ... NOP      &times; 3
24 00    BIT $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>EA  ... NOP      &times; 3
04 00    NOP $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|22 bytes
|-
|<pre>EA  ... NOP      &times; 3
4C xx xx JMP *+3
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|29 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 26</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 26</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 27</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 27</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|30 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 27</pre>||Not relocatable code
|-
|}
 
 
=== 58 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #31
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A0 0B    LDY #11
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA      NOP
A2 0B    LDX #11
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
B0 FA    BCS *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 0A    LDY #10
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 0A    LDX #10
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, and C
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>20 xx xx JSR @rts12
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #17
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
10 FB    BPL *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|15 bytes
|-
|<pre>EA      NOP
68  ... PLA      &times; 14</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|17 bytes
|-
|<pre>EA      NOP
68      PLA      \ &times; 8
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|20 bytes
|-
|<pre>26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|29 bytes
|-
|<pre>EA  ... NOP      &times; 29</pre>||No requirements
|-
|}
 
 
=== 59 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #32
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
10 FB    BPL *-3</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>48      PHA
A0 0B    LDY #11
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A2 0B    LDX #11
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, and C
|-
|<pre>68      PLA
A0 F8    LDY #248 ;hides 'SED'
C8      INY
D0 FC    BNE *-2</pre>||Clobbers A, Y, S, Z&N, and D
|-
|<pre>68      PLA
A2 F8    LDX #248 ;hides 'SED'
E8      INX
D0 FC    BNE *-2</pre>||Clobbers A, X, S, Z&N, and D
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 0B    LDX #11
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 0B    LDY #11
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, and C
|-
|<pre>48      PHA
08      PHP
A0 88    LDY #136 ;hides 'DEY'
30 FD    BMI *-1
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>08      PHP
A9      LDA #25
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #25
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A4 00    LDY $00
A0 88    LDY #136 ;hides 'DEY'
30 FD    BMI *-1
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>00 00    BRK 0
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers A; requires dummy interrupt handler; and writes in stack
|-
|<pre>00 00    BRK 0
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA      NOP ;first loop only
EA      NOP
10 F9    BPL *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 07    LDX #7
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA      NOP ;first loop only
EA      NOP
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #18
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts12
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>08      PHP
28      PLP
00 00... BRK 0    &times; 4</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|15 bytes
|-
|<pre>68      PLA
48      PHA
68  ... PLA      &times; 13</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|17 bytes
|-
|<pre>A9 09    LDA #$09 ;hides 'ORA #$EA'
EA      NOP ;first loop only
EA  ... NOP      &times; 12
10 F0    BPL *-14</pre>||Clobbers A, and Z&N
|-
!colspan="2"|21 bytes
|-
|<pre>EA  ... NOP      &times; 3
E6 xx    INC @zptemp
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
!colspan="2"|22 bytes
|-
|<pre>C5 00    CMP $00
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>24 00    BIT $00
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>04 00    NOP $00
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|23 bytes
|-
|<pre>4C xx xx JMP *+3
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|30 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 27</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 27</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 28</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 28</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|31 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 28</pre>||Not relocatable code
|-
|}
 
 
=== 60 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #33
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A2 0B    LDX #11
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>68      PLA
A0 0B    LDY #11
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A0 0B    LDY #11
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A2 0B    LDX #11
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>E6 xx    INC @zptemp
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, and C; and requires @zptemp
|-
|<pre>EA      NOP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
B0 FA    BCS *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #26
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #26
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FA    BMI *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 0A    LDX #10
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 0A    LDY #10
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, and C
|-
|<pre>48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FA    BMI *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>48      PHA
A9 2A    LDA #$2A ;hides 'ROL A'
00 00    BRK 0
10 FB    BPL *-3
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>20 xx xx JSR @rts14
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #19
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
28      PLP
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|15 bytes
|-
|<pre>68  ... PLA      &times; 15</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|18 bytes
|-
|<pre>EA  ... NOP      &times; 2
68      PLA      \ &times; 8
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|20 bytes
|-
|<pre>36 00    ROL $00,X \ &times; 5
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|30 bytes
|-
|<pre>EA  ... NOP      &times; 30</pre>||No requirements
|-
|}
 
 
=== 61 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 0C    LDY #12
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 0C    LDX #12
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9      LDA #34
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
10 FB    BPL *-3</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
E6 xx    INC @zptemp
90 FB    BCC *-3</pre>||Clobbers A, Z&N, and C; and requires @zptemp
|-
|<pre>EA      NOP
68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, and C
|-
|<pre>08      PHP
A9      LDA #27
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #27
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, and C
|-
|<pre>08      PHP
E6 xx    INC @zptemp
A0 88    LDY #136 ;hides 'DEY'
30 FD    BMI *-1
28      PLP</pre>||Clobbers Y; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 0A    LDX #10
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 0A    LDY #10
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 0A    LDY #10
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 0A    LDX #10
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #20
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA      NOP
08      PHP
28      PLP
00 00... BRK 0    &times; 4</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
10 FB    BPL *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|16 bytes
|-
|<pre>EA      NOP
68      PLA
48      PHA
68  ... PLA      &times; 13</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|18 bytes
|-
|<pre>36 00    ROL $00,X
76 00    ROR $00,X
68      PLA      \ &times; 7
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|22 bytes
|-
|<pre>C5 00    CMP $00
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>24 00    BIT $00
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>E6 xx    INC @zptemp
26 00    ROL $00  \ &times; 2
66 00    ROR $00  /
36 00    ROL $00,X \ &times; 3
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
|<pre>04 00    NOP $00
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|23 bytes
|-
|<pre>4C xx xx JMP *+3
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|31 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 28</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 28</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 29</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 29</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|32 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 29</pre>||Not relocatable code
|-
|}
 
 
=== 62 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 88    LDX #136 ;hides 'DEY'
CA      DEX
30 FC    BMI *-2</pre>||Clobbers X, Y, and Z&N
|-
|<pre>A9      LDA #35
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>00 00    BRK 0
A0 88    LDY #136 ;hides 'DEY'
30 FD    BMI *-1</pre>||Clobbers Y, and Z&N; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A2 F8    LDX #248 ;hides 'SED'
E8      INX
D0 FC    BNE *-2
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 F8    LDY #248 ;hides 'SED'
C8      INY
D0 FC    BNE *-2
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>68      PLA
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, and C
|-
|<pre>68      PLA
48      PHA
A2 F8    LDX #248 ;hides 'SED'
E8      INX
D0 FC    BNE *-2</pre>||Clobbers A, X, Z&N, and D
|-
|<pre>68      PLA
48      PHA
A0 F8    LDY #248 ;hides 'SED'
C8      INY
D0 FC    BNE *-2</pre>||Clobbers A, Y, Z&N, and D
|-
|<pre>EA      NOP
68      PLA
A2 0B    LDX #11
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>EA      NOP
68      PLA
A0 0B    LDY #11
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 3
A0 0B    LDY #11
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A2 0B    LDX #11
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #21
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA      NOP
08      PHP
28      PLP
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|16 bytes
|-
|<pre>EA      NOP
68  ... PLA      &times; 15</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|18 bytes
|-
|<pre>68      PLA
48      PHA
A9 09    LDA #$09 ;hides 'ORA #$EA'
EA      NOP ;first loop only
EA  ... NOP      &times; 11
10 F1    BPL *-13</pre>||Clobbers A, and Z&N
|-
!colspan="2"|21 bytes
|-
|<pre>EA      NOP
36 00    ROL $00,X \ &times; 5
76 00    ROR $00,X /</pre>||Clobbers Z&N
|-
!colspan="2"|31 bytes
|-
|<pre>EA  ... NOP      &times; 31</pre>||No requirements
|-
|}
 
 
=== 63 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>A9      LDA #36
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A0 0C    LDY #12
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA      NOP
A2 0C    LDX #12
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; and requires @zptemp
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; and requires support for unofficial opcodes
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A2 0B    LDX #11
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 0B    LDY #11
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
4C xx xx JMP *+3
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; and not relocatable code
|-
|<pre>38      SEC
A9 0C    LDA #12
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>68  ... PLA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, and C
|-
|<pre>08      PHP
A9      LDA #29
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #29
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts14
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; requires @rts14; and writes in stack
|-
|<pre>48      PHA
A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts14
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
E6 xx    INC @zptemp
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2
68      PLA</pre>||Clobbers Z&N, C, and V; requires @zptemp; and writes in stack
|-
|<pre>A9 09    LDA #$09 ;hides 'ORA #$EA'
EA      NOP ;first loop only
00 00... BRK 0    &times; 2
10 F8    BPL *-6</pre>||Clobbers A, and Z&N; requires dummy interrupt handler; and writes in stack
|-
|<pre>EA      NOP
48      PHA
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 2A    LDA #$2A ;hides 'ROL A'
00 00    BRK 0
10 FB    BPL *-3
68      PLA</pre>||Clobbers S, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #22
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
08      PHP
28      PLP
90 FB    BCC *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
!colspan="2"|16 bytes
|-
|<pre>68      PLA
48      PHA
68  ... PLA      &times; 14</pre>||Clobbers A, S, and Z&N
|-
!colspan="2"|18 bytes
|-
|<pre>68      PLA      \ &times; 9
48      PHA      /</pre>||Clobbers A, and Z&N
|-
!colspan="2"|22 bytes
|-
|<pre>C5 00    CMP $00
36 00    ROL $00,X \ &times; 5
76 00    ROR $00,X /</pre>||Clobbers Z&N, and C
|-
|<pre>24 00    BIT $00
36 00    ROL $00,X \ &times; 5
76 00    ROR $00,X /</pre>||Clobbers Z&N, and V
|-
|<pre>E6 xx    INC @zptemp
26 00    ROL $00
66 00    ROR $00
36 00    ROL $00,X \ &times; 4
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires @zptemp
|-
|<pre>04 00    NOP $00
36 00    ROL $00,X \ &times; 5
76 00    ROR $00,X /</pre>||Clobbers Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|23 bytes
|-
|<pre>4C xx xx JMP *+3
36 00    ROL $00,X \ &times; 5
76 00    ROR $00,X /</pre>||Clobbers Z&N; and not relocatable code
|-
!colspan="2"|32 bytes
|-
|<pre>18      CLC
90 00    BCC *+2
EA  ... NOP      &times; 29</pre>||Clobbers C
|-
|<pre>B8      CLV
50 00    BVC *+2
EA  ... NOP      &times; 29</pre>||Clobbers V
|-
|<pre>85 xx    STA @zptemp
EA  ... NOP      &times; 30</pre>||Requires @zptemp
|-
|<pre>04 00    NOP $00
EA  ... NOP      &times; 30</pre>||Requires support for unofficial opcodes
|-
!colspan="2"|33 bytes
|-
|<pre>4C xx xx JMP *+3
EA  ... NOP      &times; 30</pre>||Not relocatable code
|-
|}
 
 
=== 64 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #37
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 09    LDX #9
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A0 09    LDY #9
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
EA  ... NOP      &times; 2
B0 FA    BCS *-4</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
18      CLC
10 FA    BPL *-4</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #30
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #30
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 08    LDY #8
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 08    LDX #8
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #23
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
EA      NOP
B0 FB    BCS *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
* From 64 cycles onwards, these tables quit considering writing into stack as a drawback.
 
 
=== 65 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #38
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 08    LDY #8
48      PHA
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>A2 08    LDX #8
48      PHA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 0C    LDX #12
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 0C    LDY #12
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; and requires @zptemp
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #31
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #31
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A0 0B    LDY #11
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 0B    LDX #11
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
4C xx xx JMP *+3
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; and not relocatable code
|-
|<pre>A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts15
18      CLC
10 F9    BPL *-5</pre>||Clobbers A, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 0C    LDA #12
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>00 00... BRK 0    &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
B0 FA    BCS *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
B0 FA    BCS *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 66 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 0D    LDY #13
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #39
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #32
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #32
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
10 FB    BPL *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
10 FB    BPL *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 0B    LDY #11
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 0B    LDX #11
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A4 00    LDY $00
A0 0B    LDY #11
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 0B    LDX #11
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #25
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>00 00    BRK 0
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA
28      PLP</pre>||Requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA      NOP ;first loop only
EA      NOP
10 F9    BPL *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 67 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #40
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>BA      TSX
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
D0 FC    BNE *-2
9A      TXS</pre>||Clobbers A, X, Z&N, and C; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
A2 88    LDX #136 ;hides 'DEY'
CA      DEX
30 FC    BMI *-2</pre>||Clobbers X, Y, and Z&N; and requires @zptemp
|-
|<pre>A0 06    LDY #6
48  ... PHA      &times; 2
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>A2 06    LDX #6
48  ... PHA      &times; 2
CA      DEX
D0 F9    BNE *-5</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
A9      LDA #33
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #33
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A4 00    LDY $00
A0 09    LDY #9
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>A6 00    LDX $00
A2 09    LDX #9
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 3
90 FA    BCC *-4</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|9 bytes
|-
|<pre>98      TYA
48      PHA
A0 0B    LDY #11
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 0B    LDX #11
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 0B    LDY #11
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
E6 xx    INC @zptemp
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>EA      NOP
48      PHA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
B0 FA    BCS *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
B0 FA    BCS *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #26
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FA    BMI *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 68 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #41
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A0 0D    LDY #13
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA      NOP
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A2 0C    LDX #12
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 0C    LDY #12
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>38      SEC
A9 0D    LDA #13
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>00 00    BRK 0
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>EA      NOP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #34
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #34
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>E6 xx    INC @zptemp
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; and requires @zptemp
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
10 FB    BPL *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
10 FB    BPL *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #27
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 69 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
EA      NOP
30 FC    BMI *-2</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 0A    LDX #10 ;hides 'ASL A'
CA      DEX
D0 FC    BNE *-2</pre>||Clobbers A, X, Z&N, and C
|-
|<pre>A9      LDA #42
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>08      PHP
A2 88    LDX #136 ;hides 'DEY'
CA      DEX
30 FC    BMI *-2
28      PLP</pre>||Clobbers X, and Y; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #35
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #35
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>00 00    BRK 0
08      PHP
A0 88    LDY #136 ;hides 'DEY'
30 FD    BMI *-1
28      PLP</pre>||Clobbers Y; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 70 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #43
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 0D    LDY #13
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 0D    LDY #13
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>48      PHA
68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #36
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #36
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A0 0C    LDY #12
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 0C    LDX #12
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>20 xx xx JSR @rts15
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 0D    LDA #13
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>EA      NOP
00 00    BRK 0
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 0C    LDA #12
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
4C xx xx JMP *+3
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; writes in stack; and not relocatable code
|-
|<pre>48      PHA
38      SEC
A9 0C    LDA #12
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #29
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts14
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Requires @rts14; and writes in stack
|-
|<pre>08      PHP
E6 xx    INC @zptemp
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>48      PHA
A9 09    LDA #$09 ;hides 'ORA #$EA'
EA      NOP ;first loop only
00 00... BRK 0    &times; 2
10 F8    BPL *-6
68      PLA</pre>||Clobbers Z&N; requires dummy interrupt handler; and writes in stack
|-
|<pre>EA      NOP
48      PHA
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 71 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 0E    LDY #14
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #44
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #37
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #37
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 09    LDY #9
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 09    LDX #9
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
EA  ... NOP      &times; 2
B0 FA    BCS *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
EA  ... NOP      &times; 2
B0 FA    BCS *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #30
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 72 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #45
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A0 88    LDY #136 ;hides 'DEY'
EA      NOP
30 FC    BMI *-2</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A2 0A    LDX #10 ;hides 'ASL A'
CA      DEX
D0 FC    BNE *-2</pre>||Clobbers A, X, S, Z&N, and C; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A4 00    LDY $00
A0 88    LDY #136 ;hides 'DEY'
EA      NOP
30 FC    BMI *-2</pre>||Clobbers Y, and Z&N
|-
|<pre>A6 00    LDX $00
A2 0A    LDX #10 ;hides 'ASL A'
CA      DEX
D0 FC    BNE *-2</pre>||Clobbers A, X, Z&N, and C
|-
|<pre>48  ... PHA      &times; 2
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
A9      LDA #38
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #38
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 3
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>00 00    BRK 0
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
10 FB    BPL *-3</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 88    LDX #136 ;hides 'DEY'
CA      DEX
30 FC    BMI *-2
28      PLP</pre>||Clobbers X, Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>98      TYA
48      PHA
A0 0C    LDY #12
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>08      PHP
A0 08    LDY #8
C5 00    CMP $00
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 08    LDX #8
24 00    BIT $00
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #31
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 0C    LDA #12
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
4C xx xx JMP *+3
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; writes in stack; and not relocatable code
|-
|<pre>48      PHA
A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts15
18      CLC
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 0C    LDA #12
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>00 00... BRK 0    &times; 2
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
D0 FD    BNE *-1
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
B0 FA    BCS *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
28      PLP
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 73 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #46
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 0E    LDY #14
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 0D    LDY #13
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
90 FB    BCC *-3</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #39
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #39
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>48      PHA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A, and S; requires @zptemp; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
D0 FB    BNE *-3
68      PLA</pre>||Clobbers S, Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A, and S; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
D0 FB    BNE *-3
68      PLA</pre>||Clobbers S, Z&N, and C; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #32
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
10 FB    BPL *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 74 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #47
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A0 0E    LDY #14
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 0E    LDY #14
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #40
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #40
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
24 00    BIT $00
28      PLP
10 F9    BPL *-5</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
BA      TSX
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
D0 FC    BNE *-2
9A      TXS
28      PLP</pre>||Clobbers A, and X; and writes in stack
|-
|<pre>08      PHP
E6 xx    INC @zptemp
A2 88    LDX #136 ;hides 'DEY'
CA      DEX
30 FC    BMI *-2
28      PLP</pre>||Clobbers X, and Y; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 09    LDY #9
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 09    LDX #9
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>68      PLA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A, S, and Z&N; requires @zptemp; and writes in stack
|-
|<pre>68      PLA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A, S, and Z&N; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #33
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 3
90 FA    BCC *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 08    LDX #8
24 00    BIT $00
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 08    LDY #8
C5 00    CMP $00
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 3
90 FA    BCC *-4
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
98      TYA
48      PHA
A0 0B    LDY #11
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>08      PHP
E6 xx    INC @zptemp
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>EA      NOP
48      PHA
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
B0 FA    BCS *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
28      PLP
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
30 FC    BMI *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 75 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #48
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 0E    LDY #14
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 0E    LDY #14
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C
|-
|<pre>EA      NOP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #41
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #41
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 0D    LDY #13
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 0D    LDA #13
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 0D    LDA #13
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>00 00    BRK 0
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #34
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>E6 xx    INC @zptemp
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
D0 FB    BNE *-3
68      PLA</pre>||Clobbers S, Z&N, and C; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
10 FB    BPL *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 76 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 0F    LDY #15
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 0F    LDX #15
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$08'
08      PHP ;first loop only
30 FC    BMI *-2</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>A9      LDA #49
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 88    LDY #136 ;hides 'DEY'
EA      NOP
30 FC    BMI *-2
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 0A    LDX #10 ;hides 'ASL A'
CA      DEX
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, and X; and writes in stack
|-
|<pre>00 00    BRK 0
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
A9      LDA #42
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #42
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>E6 xx    INC @zptemp
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; and requires @zptemp
|-
|<pre>48      PHA
08      PHP
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>EA      NOP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>04 00    NOP $00
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>00 00    BRK 0
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #35
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
28      PLP
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 77 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #50
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>48  ... PHA      &times; 2
A0 0E    LDY #14
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>68      PLA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #43
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #43
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 3
A0 0E    LDY #14
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts14
90 FA    BCC *-4</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 0D    LDY #13
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #36
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 0D    LDA #13
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>20 xx xx JSR @rts15
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 0D    LDA #13
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>EA      NOP
00 00    BRK 0
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18      CLC
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 0C    LDA #12
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 78 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #51
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 0B    LDX #11
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A0 0B    LDY #11
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$08'
08      PHP ;first loop only
30 FA    BMI *-4</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 0E    LDY #14
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 0F    LDA #15
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #44
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #44
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #37
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
EA  ... NOP      &times; 2
B0 FA    BCS *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 79 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
48      PHA
30 FC    BMI *-2</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>A9      LDA #52
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
A5 00    LDA $00
30 FB    BMI *-3</pre>||Clobbers A, Y, and Z&N
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
A6 00    LDX $00
30 FB    BMI *-3</pre>||Clobbers X, Y, and Z&N
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
C5 00    CMP $00
30 FB    BMI *-3</pre>||Clobbers Y, Z&N, and C
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
24 00    BIT $00
30 FB    BMI *-3</pre>||Clobbers Y, Z&N, and V
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
85 xx    STA @zptemp
30 FB    BMI *-3</pre>||Clobbers Y, and Z&N; and requires @zptemp
|-
|<pre>48      PHA
A2 0F    LDX #15
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
04 00    NOP $00
30 FB    BMI *-3</pre>||Clobbers Y, and Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|7 bytes
|-
|<pre>A4 00    LDY $00
A0 0F    LDY #15
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A6 00    LDX $00
A2 0F    LDX #15
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
B8      CLV
50 00    BVC *+2
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; and requires @zptemp
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #45
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #45
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
08      PHP
28      PLP
18      CLC
10 F9    BPL *-5</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 88    LDY #136 ;hides 'DEY'
EA      NOP
30 FC    BMI *-2
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 0A    LDX #10 ;hides 'ASL A'
CA      DEX
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, X, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A4 00    LDY $00
A0 88    LDY #136 ;hides 'DEY'
EA      NOP
30 FC    BMI *-2
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 0A    LDX #10 ;hides 'ASL A'
CA      DEX
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, and X; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #38
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
8C      TXA
48      PHA
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>00 00    BRK 0
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
10 FB    BPL *-3
28      PLP</pre>||Clobbers A; requires dummy interrupt handler; and writes in stack
|-
|<pre>00 00    BRK 0
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
10 FB    BPL *-3
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
10 FA    BPL *-4
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
10 FA    BPL *-4
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
98      TYA
48      PHA
A0 0C    LDY #12
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 0D    LDA #13
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 0C    LDA #12
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 80 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #53
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 88    LDX #136 ;hides 'DEY'
EA      NOP
CA      DEX
30 FB    BMI *-3</pre>||Clobbers X, Y, and Z&N
|-
|<pre>68      PLA
A0 0F    LDY #15
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 0F    LDX #15
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>68      PLA
A9 E9    LDA #$E9 ;hides 'SBC #$08'
08      PHP ;first loop only
30 FC    BMI *-2</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A0 0F    LDY #15
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A2 0F    LDX #15
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
EA      NOP
B0 F9    BCS *-5</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #46
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #46
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 0E    LDY #14
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>38      SEC
A9 0B    LDA #11
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>68      PLA
00 00    BRK 0
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
90 FB    BCC *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
90 FB    BCC *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #39
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Clobbers S; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Clobbers S; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
28      PLP
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
10 FB    BPL *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 81 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 10    LDX #16
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 10    LDY #16
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #54
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
48      PHA
30 FB    BMI *-3</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A9 69    LDA #$69 ;hides 'ADC #$18'
18      CLC ;first loop only
E6 xx    INC @zptemp
90 FA    BCC *-4</pre>||Clobbers A, Z&N, C, and V; and requires @zptemp
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
30 FA    BMI *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #47
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #47
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts15
90 FA    BCC *-4</pre>||Clobbers A, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
B8      CLV
50 00    BVC *+2
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; and requires @zptemp
|-
|<pre>18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
EA      NOP
00 00    BRK 0
90 FA    BCC *-4</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 0E    LDY #14
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; and requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A4 00    LDY $00
A0 0E    LDY #14
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
08      PHP
28      PLP
18      CLC
10 F9    BPL *-5</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>48      PHA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #40
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
24 00    BIT $00
28      PLP
10 F9    BPL *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 3
90 FA    BCC *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 82 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #55
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A0 88    LDY #136 ;hides 'DEY'
48      PHA
30 FC    BMI *-2</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>A2 09    LDX #9
68      PLA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>A2 09    LDX #9
EA  ... NOP      &times; 2
CA      DEX
D0 F9    BNE *-5</pre>||Clobbers X, and Z&N
|-
|<pre>A0 09    LDY #9
EA  ... NOP      &times; 2
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, and Z&N
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #48
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #48
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
EA      NOP
B0 F9    BCS *-5</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 0E    LDY #14
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #41
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 0D    LDA #13
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 83 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #56
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 10    LDX #16
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 10    LDY #16
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4</pre>||Clobbers A, Z&N, C, V, and D
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 0F    LDY #15
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 0F    LDX #15
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 10    LDA #16
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #49
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #49
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>20 xx xx JSR @rts12
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>18  ... CLC      &times; 2
A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts15
90 FA    BCC *-4</pre>||Clobbers A, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; and requires @zptemp
|-
|<pre>18  ... CLC      &times; 2
A9 2A    LDA #$2A ;hides 'ROL A'
EA      NOP
00 00    BRK 0
90 FA    BCC *-4</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; and requires support for unofficial opcodes
|-
|<pre>48      PHA
08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, and S; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #42
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>36 00    ROL $00,X
76 00    ROR $00,X
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C
|-
|<pre>08      PHP
E6 xx    INC @zptemp
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>EA      NOP
48      PHA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
|<pre>04 00    NOP $00
08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>04 00    NOP $00
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>00 00    BRK 0
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 84 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #57
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A0 10    LDY #16
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A2 10    LDX #16
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A4 00    LDY $00
A0 10    LDY #16
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A6 00    LDX $00
A2 10    LDX #16
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>68  ... PLA      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$08'
08      PHP ;first loop only
30 FC    BMI *-2</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #50
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #50
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
E6 xx    INC @zptemp
28      PLP
10 F9    BPL *-5</pre>||Clobbers A, Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>00 00    BRK 0
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 4
10 F9    BPL *-5</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
24 00    BIT $00
28      PLP
18      CLC
10 F8    BPL *-6</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 0E    LDY #14
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>68      PLA
08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, S, and Z&N; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #43
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
8C      TXA
48      PHA
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A0 0E    LDY #14
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts14
90 FA    BCC *-4
28      PLP</pre>||Clobbers A; requires @rts14; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts14
90 FA    BCC *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>08      PHP
8C      TXA
48      PHA
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 0D    LDA #13
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 85 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #58
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 0C    LDX #12
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A0 0C    LDY #12
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
08      PHP
28      PLP
B0 FA    BCS *-4</pre>||Clobbers A, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #51
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #51
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 0B    LDY #11
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 0B    LDX #11
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
08      PHP
28      PLP
90 FA    BCC *-4</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 0F    LDA #15
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 0F    LDA #15
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #44
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 86 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 11    LDY #17
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 11    LDX #17
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9      LDA #59
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4</pre>||Clobbers A, S, Z&N, C, V, and D; and writes in stack
|-
|<pre>08      PHP
A9      LDA #52
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #52
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 88    LDY #136 ;hides 'DEY'
C5 00    CMP $00
30 FB    BMI *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>A5 00    LDA $00
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4</pre>||Clobbers A, Z&N, C, V, and D
|-
|<pre>48      PHA
08      PHP
A2 0F    LDX #15
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48      PHA
68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>00 00    BRK 0
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; requires dummy interrupt handler, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
B8      CLV
50 00    BVC *+2
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 0F    LDX #15
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
B8      CLV
50 00    BVC *+2
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #45
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
08      PHP
28      PLP
18      CLC
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
48      PHA
8C      TXA
48      PHA
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>00 00    BRK 0
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
10 FB    BPL *-3
68      PLA
28      PLP</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 0D    LDA #13
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 87 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #60
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>A0 F8    LDY #248 ;hides 'SED'
68      PLA
C8      INY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, Z&N, and D
|-
|<pre>A2 F8    LDX #248 ;hides 'SED'
68      PLA
E8      INX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, Z&N, and D
|-
!colspan="2"|7 bytes
|-
|<pre>EA      NOP
A0 0C    LDY #12
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>EA      NOP
A2 0C    LDX #12
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C
|-
|<pre>08      PHP
A9      LDA #53
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #53
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A2 88    LDX #136 ;hides 'DEY'
EA      NOP
CA      DEX
30 FB    BMI *-3
28      PLP</pre>||Clobbers X, and Y; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 0F    LDX #15
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 0F    LDY #15
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 0F    LDX #15
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
EA      NOP
B0 F9    BCS *-5
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
EA      NOP
B0 F9    BCS *-5
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #46
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
38      SEC
A9 0B    LDA #11
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 0B    LDA #11
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
90 FB    BCC *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 88 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #61
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 11    LDX #17
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 11    LDY #17
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4</pre>||Clobbers A, Z&N, C, V, and D
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 10    LDY #16
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 10    LDX #16
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 11    LDA #17
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #54
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #54
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
10 FA    BPL *-4</pre>||Clobbers A, S, Z&N, and C; requires @rts12; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>EA  ... NOP      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>08      PHP
A9 69    LDA #$69 ;hides 'ADC #$18'
18      CLC ;first loop only
E6 xx    INC @zptemp
90 FA    BCC *-4
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
A9 69    LDA #$69 ;hides 'ADC #$18'
18      CLC ;first loop only
E6 xx    INC @zptemp
90 FA    BCC *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires @zptemp; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
18      CLC
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
30 FA    BMI *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
30 FA    BMI *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #47
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
B8      CLV
50 00    BVC *+2
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts15
90 FA    BCC *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
B8      CLV
50 00    BVC *+2
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
EA      NOP
00 00    BRK 0
90 FA    BCC *-4
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
08      PHP
28      PLP
18      CLC
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 89 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
68      PLA
30 FC    BMI *-2</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>A9      LDA #62
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
EA  ... NOP      &times; 2
30 FB    BMI *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 0A    LDX #10 ;hides 'ASL A'
EA      NOP
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, Z&N, and C
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
10 FB    BPL *-3</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>A2 0B    LDX #11
48      PHA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 11    LDX #17
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #55
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #55
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A2 09    LDX #9
EA  ... NOP      &times; 2
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 09    LDY #9
EA  ... NOP      &times; 2
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #48
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>8C      TXA
48      PHA
A2 0B    LDX #11
EA      NOP
CA      DEX
D0 FA    BNE *-4
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>48      PHA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
B8      CLV
50 00    BVC *+2
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
B8      CLV
50 00    BVC *+2
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
EA      NOP
B0 F9    BCS *-5
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
EA      NOP
B0 F9    BCS *-5
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, and C; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 0F    LDA #15
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 90 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #63
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 11    LDY #17
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 11    LDX #17
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 11    LDX #17
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 11    LDY #17
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA      NOP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4</pre>||Clobbers A, Z&N, C, V, and D
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #56
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #56
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 10    LDY #16
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 10    LDX #16
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, C, V, and D; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>48      PHA
38      SEC
A9 10    LDA #16
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #49
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>20 xx xx JSR @rts12
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>48      PHA
18  ... CLC      &times; 2
A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts15
90 FA    BCC *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
18  ... CLC      &times; 2
A9 2A    LDA #$2A ;hides 'ROL A'
EA      NOP
00 00    BRK 0
90 FA    BCC *-4
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Clobbers S; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>36 00    ROL $00,X
76 00    ROR $00,X
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>08      PHP
E6 xx    INC @zptemp
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>EA      NOP
48      PHA
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>04 00    NOP $00
08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA      NOP
08      PHP
C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 91 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 12    LDY #18
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 12    LDX #18
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9      LDA #64
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA  ... NOP      &times; 2
30 FA    BMI *-4</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
10 FB    BPL *-3</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #57
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #57
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48      PHA
08      PHP
A0 10    LDY #16
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 10    LDX #16
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; requires @rts12; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 10    LDX #16
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 10    LDY #16
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
26 00    ROL $00
66 00    ROR $00
90 F9    BCC *-5</pre>||Clobbers A, Z&N, and C
|-
|<pre>08      PHP
48      PHA
A9      LDA #50
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
E6 xx    INC @zptemp
28      PLP
10 F9    BPL *-5
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
E6 xx    INC @zptemp
28      PLP
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>00 00    BRK 0
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A; requires dummy interrupt handler; and writes in stack
|-
|<pre>00 00    BRK 0
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>68      PLA
8C      TXA
48      PHA
A2 0F    LDX #15
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
30 FA    BMI *-4
28      PLP</pre>||Clobbers A, and S; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
30 FA    BMI *-4
68      PLA</pre>||Clobbers S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
24 00    BIT $00
28      PLP
18      CLC
10 F8    BPL *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
24 00    BIT $00
28      PLP
18      CLC
10 F8    BPL *-6
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
48      PHA
8C      TXA
48      PHA
A2 0E    LDX #14
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 2A    LDA #$2A ;hides 'ROL A'
20 xx xx JSR @rts14
90 FA    BCC *-4
68      PLA
28      PLP</pre>||Requires @rts14; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
48      PHA
8C      TXA
48      PHA
A2 0D    LDX #13
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 92 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #65
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 0D    LDY #13
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 0D    LDX #13
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>68      PLA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4</pre>||Clobbers A, S, Z&N, C, V, and D
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
10 FB    BPL *-3</pre>||Clobbers A, S, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
A9      LDA #58
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #58
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A2 0C    LDX #12
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 0C    LDY #12
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4</pre>||Clobbers A, Z&N, C, V, and D
|-
|<pre>A9 2A    LDA #$2A ;hides 'ROL A'
00 00... BRK 0    &times; 2
10 F9    BPL *-5</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>EA      NOP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>EA      NOP
08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
08      PHP
28      PLP
B0 FA    BCS *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #51
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
08      PHP
28      PLP
90 FA    BCC *-4
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 0F    LDA #15
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 93 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #66
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 12    LDX #18
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 12    LDY #18
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 11    LDY #17
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 11    LDX #17
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 12    LDA #18
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
10 FB    BPL *-3</pre>||Clobbers A, S, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
A9      LDA #59
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #59
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
10 FB    BPL *-3</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>48      PHA
08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
68      PLA</pre>||Clobbers S, Z&N, C, V, and D; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #52
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
A5 00    LDA $00
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>24 00    BIT $00
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, C, V, and D; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 10    LDA #16
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>00 00    BRK 0
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires dummy interrupt handler, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
B8      CLV
50 00    BVC *+2
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 94 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #67
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A2 12    LDX #18
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A0 12    LDY #18
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 12    LDX #18
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 12    LDY #18
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
A9      LDA #60
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #60
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
10 F9    BPL *-5</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 0C    LDX #12
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 0C    LDY #12
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #53
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 0F    LDX #15
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
EA      NOP
B0 F9    BCS *-5
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 0B    LDA #11
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 95 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #68
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>68      PLA
A0 12    LDY #18
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 12    LDX #18
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 12    LDX #18
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 12    LDY #18
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #61
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #61
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 11    LDY #17
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 11    LDX #17
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, C, V, and D; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>48      PHA
38      SEC
A9 11    LDA #17
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #54
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 69    LDA #$69 ;hides 'ADC #$18'
18      CLC ;first loop only
E6 xx    INC @zptemp
90 FA    BCC *-4
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
08      PHP
28      PLP
90 FA    BCC *-4
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
30 FA    BMI *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
B8      CLV
50 00    BVC *+2
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 96 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 13    LDX #19
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 13    LDY #19
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #69
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #62
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #62
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 88    LDY #136 ;hides 'DEY'
EA  ... NOP      &times; 2
30 FB    BMI *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 0A    LDX #10 ;hides 'ASL A'
EA      NOP
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A, and X; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
10 FB    BPL *-3
28      PLP</pre>||Clobbers A; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
10 FB    BPL *-3
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 11    LDX #17
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 12    LDA #18
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A2 0B    LDX #11
24 00    BIT $00
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
10 F9    BPL *-5</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #55
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 0B    LDX #11
EA      NOP
CA      DEX
D0 FA    BNE *-4
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
B8      CLV
50 00    BVC *+2
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$1A'
1A      NOP ;first loop only
EA      NOP
B0 F9    BCS *-5
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 0F    LDA #15
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 97 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #70
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 0C    LDY #12
48      PHA
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>A2 0C    LDX #12
48      PHA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A0 08    LDY #8
08      PHP
28      PLP
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, and Z&N; and writes in stack
|-
|<pre>A2 08    LDX #8
08      PHP
28      PLP
CA      DEX
D0 F9    BNE *-5</pre>||Clobbers X, and Z&N; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #63
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #63
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 11    LDX #17
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 11    LDY #17
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, C, V, and D; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #56
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 98 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #71
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A0 13    LDY #19
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA      NOP
A2 13    LDX #19
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 12    LDY #18
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 12    LDX #18
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 13    LDA #19
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #64
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #64
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA  ... NOP      &times; 2
30 FA    BMI *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA  ... NOP      &times; 2
30 FA    BMI *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
10 FB    BPL *-3
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #57
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Requires @rts12; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
26 00    ROL $00
66 00    ROR $00
90 F9    BCC *-5
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
E6 xx    INC @zptemp
28      PLP
10 F9    BPL *-5
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>00 00    BRK 0
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
18      CLC
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
30 FA    BMI *-4
68      PLA
28      PLP</pre>||Clobbers S; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
24 00    BIT $00
28      PLP
18      CLC
10 F8    BPL *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 99 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #72
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 0E    LDX #14
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A0 0E    LDY #14
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
18      CLC
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #65
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #65
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 0D    LDY #13
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 0D    LDX #13
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>68      PLA
08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
28      PLP</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
10 FB    BPL *-3
28      PLP</pre>||Clobbers A, and S; requires dummy interrupt handler; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
10 FB    BPL *-3
68      PLA</pre>||Clobbers S, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #58
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, C, V, and D; and writes in stack
|-
|<pre>48      PHA
A9 2A    LDA #$2A ;hides 'ROL A'
00 00... BRK 0    &times; 2
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 100 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #73
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 0B    LDX #11
68      PLA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>A0 0B    LDY #11
68      PLA
88      DEY
D0 FA    BNE *-4</pre>||Clobbers A, Y, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 13    LDX #19
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 13    LDY #19
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #66
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #66
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 12    LDX #18
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 12    LDY #18
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 13    LDA #19
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>E6 xx    INC @zptemp
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>EA      NOP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 12    LDA #18
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 12    LDA #18
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #59
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
10 FB    BPL *-3
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
24 00    BIT $00
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 101 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 14    LDY #20
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 14    LDX #20
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9      LDA #74
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
48      PHA
30 FA    BMI *-4</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
EA      NOP
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #67
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #67
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>38      SEC
A9 0E    LDA #14
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
18      CLC
10 FA    BPL *-4</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 12    LDY #18
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 12    LDX #18
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A4 00    LDY $00
A0 12    LDY #18
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 12    LDX #18
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; requires @rts14; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #60
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
10 F9    BPL *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 102 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #75
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>48  ... PHA      &times; 2
A0 13    LDY #19
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A2 13    LDX #19
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
A9      LDA #68
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #68
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>A6 00    LDX $00
A2 0E    LDX #14
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 0E    LDY #14
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 12    LDY #18
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 12    LDX #18
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #61
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 103 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #76
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 14    LDX #20
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 14    LDY #20
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 69    LDA #$69 ;hides 'ADC #$08'
08      PHP ;first loop only
90 FA    BCC *-4</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 13    LDY #19
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 13    LDX #19
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #69
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #69
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 3
18      CLC
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, and C
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #62
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>98      TYA
48      PHA
A0 0D    LDY #13
EA      NOP
88      DEY
D0 FA    BNE *-4
68      PLA
A8      TAY</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; requires @rts14; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
10 FB    BPL *-3
68      PLA
28      PLP</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
38      SEC
A9 12    LDA #18
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 12    LDA #18
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
10 F9    BPL *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
18      CLC
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 104 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #77
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A0 14    LDY #20
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A2 14    LDX #20
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 14    LDX #20
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 14    LDY #20
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
00 00    BRK 0
10 FA    BPL *-4</pre>||Clobbers A, S, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
A9      LDA #70
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #70
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
18      CLC
10 F9    BPL *-5</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
00 00    BRK 0
10 F9    BPL *-5</pre>||Clobbers A, Z&N, and C; requires @zptemp, and dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
48      PHA
30 FA    BMI *-4</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
00 00    BRK 0
10 F9    BPL *-5</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 08    LDY #8
08      PHP
28      PLP
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 08    LDX #8
08      PHP
28      PLP
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #63
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 105 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #78
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 0D    LDX #13
48      PHA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>A0 0D    LDY #13
48      PHA
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A0 14    LDY #20
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A2 14    LDX #20
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$08'
08      PHP ;first loop only
90 FA    BCC *-4</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #71
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #71
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 13    LDX #19
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 13    LDY #19
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 13    LDA #19
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 13    LDA #19
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #64
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA  ... NOP      &times; 2
30 FA    BMI *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 106 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 15    LDY #21
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #79
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$08'
08      PHP ;first loop only
EA      NOP
30 FB    BMI *-3</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #72
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #72
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A2 0E    LDX #14
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 0E    LDY #14
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; requires @rts15; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>A5 00    LDA $00
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
18      CLC
10 F9    BPL *-5</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
18      CLC
10 FA    BPL *-4
28      PLP</pre>||Clobbers A; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
18      CLC
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>68      PLA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #65
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
10 FB    BPL *-3
68      PLA
28      PLP</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 107 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #80
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 18    LDX #24 ;hides 'CLC'
CA  ... DEX      &times; 2
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 18    LDY #24 ;hides 'CLC'
88  ... DEY      &times; 2
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>68      PLA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$08'
08      PHP ;first loop only
90 FA    BCC *-4</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #73
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #73
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 13    LDX #19
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 13    LDX #19
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 13    LDY #19
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #66
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 13    LDA #19
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 13    LDA #19
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 12    LDA #18
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 108 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #81
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 15    LDY #21
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A2 14    LDX #20
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 14    LDY #20
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>38      SEC
A9 15    LDA #21
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #74
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #74
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>00 00    BRK 0
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>EA      NOP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
EA      NOP
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
EA      NOP
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #67
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
38      SEC
A9 0E    LDA #14
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 0E    LDA #14
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
18      CLC
10 FA    BPL *-4
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA  ... NOP      &times; 3
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Requires @rts14; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
10 F9    BPL *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 109 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #82
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A0 15    LDY #21
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 15    LDY #21
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
90 FB    BCC *-3</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$08'
08      PHP ;first loop only
EA      NOP
30 FB    BMI *-3</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #75
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #75
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
18      CLC
10 F9    BPL *-5</pre>||Clobbers A, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
20 xx xx JSR @rts14
10 F9    BPL *-5</pre>||Clobbers A, S, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>18      CLC
A9 F4    LDA #244 ;hides 'NOP zp,X'
EA      NOP
69 01    ADC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>20 xx xx JSR @rts14
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 13    LDX #19
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 13    LDY #19
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #68
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 110 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #83
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 15    LDY #21
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A0 15    LDY #21
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>68      PLA
A9 E9    LDA #$E9 ;hides 'SBC #$08'
08      PHP ;first loop only
EA      NOP
30 FB    BMI *-3</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #76
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #76
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 14    LDX #20
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 14    LDY #20
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 15    LDA #21
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #69
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 3
18      CLC
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48      PHA
98      TYA
48      PHA
A0 0D    LDY #13
EA      NOP
88      DEY
D0 FA    BNE *-4
68      PLA
A8      TAY
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Requires @rts14; and writes in stack
|-
|<pre>08      PHP
28      PLP
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
10 FB    BPL *-3
68      PLA
28      PLP</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
38      SEC
A9 12    LDA #18
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
10 F9    BPL *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 111 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 16    LDX #22
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 16    LDY #22
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #77
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #77
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48      PHA
08      PHP
A2 14    LDX #20
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 14    LDY #20
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A4 00    LDY $00
A0 14    LDY #20
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 14    LDX #20
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #70
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
18      CLC
10 F9    BPL *-5
28      PLP</pre>||Clobbers A; requires @rts14; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
18      CLC
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
00 00    BRK 0
10 F9    BPL *-5
28      PLP</pre>||Clobbers A; requires @zptemp, and dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
00 00    BRK 0
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp, and dummy interrupt handler; and writes in stack
|-
|<pre>68      PLA
8C      TXA
48      PHA
A2 13    LDX #19
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
00 00    BRK 0
10 F9    BPL *-5
28      PLP</pre>||Clobbers A; requires dummy interrupt handler, and support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
00 00    BRK 0
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler, and support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
EA      NOP
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
EA      NOP
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 112 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #85
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>48  ... PHA      &times; 2
A0 15    LDY #21
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
A9      LDA #78
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #78
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 3
A0 15    LDY #21
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>68      PLA
38      SEC
A9 15    LDA #21
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
90 FB    BCC *-3</pre>||Clobbers A, S, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>98      TYA
48      PHA
A0 14    LDY #20
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>08      PHP
A2 0D    LDX #13
C5 00    CMP $00
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 0D    LDY #13
C5 00    CMP $00
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #71
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 13    LDA #19
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 113 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #86
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 10    LDX #16
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A0 10    LDY #16
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 15    LDY #21
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A9      LDA #79
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #79
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #72
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
08      PHP
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Requires @rts15; and writes in stack
|-
|<pre>08      PHP
A5 00    LDA $00
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>24 00    BIT $00
48      PHA
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
18      CLC
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
18      CLC
10 FA    BPL *-4
68      PLA
28      PLP</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 3
18      CLC
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 114 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #87
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A2 16    LDX #22
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A0 16    LDY #22
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A4 00    LDY $00
A0 16    LDY #22
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A6 00    LDX $00
A2 16    LDX #22
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A5 00    LDA $00
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #80
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #80
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 18    LDY #24 ;hides 'CLC'
88  ... DEY      &times; 2
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 18    LDX #24 ;hides 'CLC'
CA  ... DEX      &times; 2
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #73
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
98      TYA
48      PHA
A0 14    LDY #20
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY</pre>||Clobbers A, and Z&N; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 13    LDX #19
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 13    LDA #19
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 115 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #88
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A2 16    LDX #22
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>68      PLA
A0 16    LDY #22
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A0 16    LDY #22
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A2 16    LDX #22
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #81
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #81
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 15    LDY #21
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
90 FA    BCC *-4</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 15    LDA #21
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 15    LDA #21
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #74
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>00 00    BRK 0
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
EA      NOP
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 0E    LDA #14
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 116 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 17    LDY #23
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 17    LDX #23
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #82
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #82
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48      PHA
08      PHP
A0 15    LDY #21
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A6 00    LDX $00
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 15    LDY #21
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
90 FB    BCC *-3
28      PLP</pre>||Clobbers A; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
90 FB    BCC *-3
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>EA      NOP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #75
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
18      CLC
10 F9    BPL *-5
28      PLP</pre>||Clobbers A; requires @rts15; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
18      CLC
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>EA      NOP
A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>68      PLA
98      TYA
48      PHA
A0 14    LDY #20
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
18      CLC
A9 F4    LDA #244 ;hides 'NOP zp,X'
EA      NOP
69 01    ADC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 F4    LDA #244 ;hides 'NOP zp,X'
EA      NOP
69 01    ADC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>98      TYA
48      PHA
A0 0D    LDY #13
A5 00    LDA $00
88      DEY
D0 F9    BNE *-5
68      PLA
A8      TAY</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>20 xx xx JSR @rts14
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A; requires @rts14; and writes in stack
|-
|<pre>20 xx xx JSR @rts14
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
28      PLP
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 117 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #90
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>A2 0D    LDX #13 ;hides 'ORA abs'
A5 00    LDA $0
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers A, X, and Z&N
|-
|<pre>A0 0D    LDY #13 ;hides 'ORA abs'
A5 00    LDA $0
88      DEY
D0 FA    BNE *-4</pre>||Clobbers A, Y, and Z&N
|-
|<pre>48  ... PHA      &times; 2
A2 16    LDX #22
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A0 16    LDY #22
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #83
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #83
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 3
A0 16    LDY #22
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A2 16    LDX #22
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 15    LDY #21
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #76
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 15    LDA #21
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 15    LDA #21
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 118 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #91
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 17    LDX #23
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 17    LDY #23
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FA    BCS *-4</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 16    LDY #22
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 16    LDX #22
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #77
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
18      CLC
10 F9    BPL *-5
68      PLA
28      PLP</pre>||Requires @rts14; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
00 00    BRK 0
10 F9    BPL *-5
68      PLA
28      PLP</pre>||Requires @zptemp, and dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
00 00    BRK 0
10 F9    BPL *-5
68      PLA
28      PLP</pre>||Requires dummy interrupt handler, and support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$5A'
5A      NOP ;first loop only
EA      NOP
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Clobbers S; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA      NOP
08      PHP
28      PLP
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 119 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #92
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 88    LDY #136 ;hides 'DEY'
08      PHP
28      PLP
30 FB    BMI *-3</pre>||Clobbers Y, and Z&N; and writes in stack
|-
|<pre>48      PHA
A2 17    LDX #23
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 17    LDX #23
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A5 00    LDA $00
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
08      PHP
28      PLP
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
A9      LDA #85
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #85
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
24 00    BIT $00
28      PLP
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 15    LDY #21
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #78
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
8C      TXA
48      PHA
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A0 15    LDY #21
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
90 FB    BCC *-3
28      PLP</pre>||Clobbers A, and S; requires dummy interrupt handler; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
90 FB    BCC *-3
68      PLA</pre>||Clobbers S, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
98      TYA
48      PHA
A0 14    LDY #20
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 15    LDA #21
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 120 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #93
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 11    LDX #17
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A0 11    LDY #17
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>68      PLA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2</pre>||Clobbers A, S, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #86
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #86
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 10    LDY #16
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 10    LDX #16
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #79
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48      PHA
08      PHP
48      PHA
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
24 00    BIT $00
48      PHA
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 121 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 18    LDY #24
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 18    LDX #24
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9      LDA #94
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
08      PHP
28      PLP
30 FA    BMI *-4</pre>||Clobbers A, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #87
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #87
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
90 FA    BCC *-4</pre>||Clobbers A, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
00 00    BRK 0
90 FA    BCC *-4</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 16    LDY #22
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 16    LDX #22
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A5 00    LDA $00
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 16    LDY #22
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 16    LDX #22
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>24 00    BIT $00
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #80
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
48      PHA
98      TYA
48      PHA
A0 14    LDY #20
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 122 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #95
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>EA      NOP
A2 11    LDX #17
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 11    LDY #17
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA      NOP
10 F9    BPL *-5</pre>||Clobbers A, Z&N, C, V, and D
|-
|<pre>48  ... PHA      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #88
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #88
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>38      SEC
A9 11    LDA #17
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>68      PLA
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA      NOP
10 F9    BPL *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 16    LDX #22
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 16    LDY #22
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #81
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
90 FA    BCC *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 15    LDA #21
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 123 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #96
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 18    LDX #24
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 18    LDY #24
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A2 17    LDX #23
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 17    LDY #23
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #82
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>E6 xx    INC @zptemp
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
90 FB    BCC *-3
68      PLA
28      PLP</pre>||Requires dummy interrupt handler; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
18      CLC
10 F9    BPL *-5
68      PLA
28      PLP</pre>||Requires @rts15; and writes in stack
|-
|<pre>EA      NOP
C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
18      CLC
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 F4    LDA #244 ;hides 'NOP zp,X'
EA      NOP
69 01    ADC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>48      PHA
98      TYA
48      PHA
A0 0D    LDY #13
A5 00    LDA $00
88      DEY
D0 F9    BNE *-5
68      PLA
A8      TAY
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>20 xx xx JSR @rts14
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Requires @rts14; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
48      PHA
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|14 bytes
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
48      PHA
38      SEC
A9 14    LDA #20
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 124 cycles ===
{| class="wikitable testtable"
!colspan="2"|4 bytes
|-
|<pre>A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1</pre>||Clobbers X, and Z&N
|-
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #97
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A0 18    LDY #24
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A4 00    LDY $00
A0 18    LDY #24
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>00 00    BRK 0
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V; requires dummy interrupt handler; and writes in stack
|-
|<pre>68  ... PLA      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2</pre>||Clobbers A, S, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #90
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #90
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA      NOP
10 F9    BPL *-5</pre>||Clobbers A, Z&N, C, V, and D
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
00 00    BRK 0
10 F9    BPL *-5</pre>||Clobbers A, Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A2 0D    LDX #13 ;hides 'ORA abs'
A5 00    LDA $0
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, and X; and writes in stack
|-
|<pre>08      PHP
A0 0D    LDY #13 ;hides 'ORA abs'
A5 00    LDA $0
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, and Y; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 11    LDA #17
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 16    LDX #22
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 16    LDY #22
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #83
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA      NOP
10 F9    BPL *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A0 16    LDY #22
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A2 16    LDX #22
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 15    LDA #21
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 125 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #98
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 18    LDY #24
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 18    LDX #24
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 18    LDX #24
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 18    LDY #24
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #91
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #91
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FA    BCS *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 17    LDY #23
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 17    LDX #23
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FA    BCS *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 126 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 19    LDY #25
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #99
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #92
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #92
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 88    LDY #136 ;hides 'DEY'
08      PHP
28      PLP
30 FB    BMI *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>20 xx xx JSR @rts15
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V; requires @rts15; and writes in stack
|-
|<pre>EA      NOP
00 00    BRK 0
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 17    LDX #23
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A5 00    LDA $00
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 17    LDX #23
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>24 00    BIT $00
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #85
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
24 00    BIT $00
28      PLP
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
48      PHA
8C      TXA
48      PHA
A2 15    LDX #21
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
00 00    BRK 0
90 FB    BCC *-3
68      PLA
28      PLP</pre>||Clobbers S; requires dummy interrupt handler; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 15    LDA #21
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 127 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>48      PHA
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>A9      LDA #100
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 12    LDX #18
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A0 12    LDY #18
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
00 00    BRK 0
B0 FA    BCS *-4</pre>||Clobbers A, Z&N, C, and V; requires dummy interrupt handler; and writes in stack
|-
|<pre>08      PHP
A9      LDA #93
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #93
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 11    LDY #17
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 11    LDX #17
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
08      PHP
28      PLP
18      CLC
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>68      PLA
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
28      PLP</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #86
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 128 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>68      PLA
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>A9      LDA #101
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 19    LDY #25
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 18    LDY #24
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 18    LDX #24
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 19    LDA #25
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #94
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #94
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
08      PHP
28      PLP
30 FA    BMI *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
08      PHP
28      PLP
30 FA    BMI *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #87
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
90 FA    BCC *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
00 00    BRK 0
90 FA    BCC *-4
68      PLA</pre>||Clobbers Z&N, and C; requires dummy interrupt handler; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
24 00    BIT $00
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
* From 128 cycles onwards, these tables quit considering RTI options.
 
 
=== 129 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #102
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>E6 xx    INC @zptemp
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1</pre>||Clobbers X, and Z&N; and requires @zptemp
|-
|<pre>A2 10    LDX #16
48      PHA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>A0 10    LDY #16
48      PHA
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A4 00    LDY $00
A0 19    LDY #25
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A6 00    LDX $00
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>08      PHP
A9      LDA #95
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #95
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>38      SEC
A9 12    LDA #18
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA      NOP
10 F9    BPL *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 11    LDX #17
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 11    LDY #17
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA      NOP
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N, C, V, and D; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #88
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
38      SEC
A9 11    LDA #17
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA      NOP
10 F9    BPL *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 130 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #103
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48  ... PHA      &times; 2
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>68      PLA
A0 19    LDY #25
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 19    LDY #25
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #96
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #96
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 18    LDX #24
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 18    LDY #24
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 19    LDA #25
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 131 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 1A    LDX #26
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 1A    LDY #26
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #104
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>08      PHP
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers X; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
48      PHA
10 F9    BPL *-5</pre>||Clobbers A, S, Z&N, C, V, and D; and writes in stack
|-
|<pre>08      PHP
A9      LDA #97
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #97
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>20 xx xx JSR @rts15
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2</pre>||Clobbers A, Z&N, C, and V; requires @rts15; and writes in stack
|-
|<pre>18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
85 xx    STA @zptemp
10 F8    BPL *-6</pre>||Clobbers A, Z&N, C, V, and D; and requires @zptemp
|-
|<pre>48      PHA
08      PHP
A0 18    LDY #24
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>38      SEC
A9 10    LDA #16
48      PHA
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
04 00    NOP $00
10 F8    BPL *-6</pre>||Clobbers A, Z&N, C, V, and D; and requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A4 00    LDY $00
A0 18    LDY #24
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>38      SEC
A9 10    LDA #16
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>68  ... PLA      &times; 2
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
28      PLP</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #90
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA      NOP
10 F9    BPL *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA      NOP
10 F9    BPL *-5
68      PLA</pre>||Clobbers Z&N, C, V, and D; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 3
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 11    LDA #17
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA      NOP
10 F9    BPL *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 132 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #105
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68  ... PLA      &times; 2
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>BA      TSX
68      PLA
9A      TXS
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1</pre>||Clobbers A, X, and Z&N
|-
|<pre>48  ... PHA      &times; 2
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A0 19    LDY #25
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
A9      LDA #98
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #98
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 3
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A0 19    LDY #25
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>68      PLA
38      SEC
A9 19    LDA #25
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 18    LDX #24
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 18    LDX #24
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 18    LDY #24
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #91
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FA    BCS *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 133 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #106
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 1A    LDX #26
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 1A    LDY #26
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 19    LDY #25
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 1A    LDA #26
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #99
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #99
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
20 xx xx JSR @rts15
90 F9    BCC *-5</pre>||Clobbers A, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
20 xx xx JSR @rts14
90 F9    BCC *-5</pre>||Clobbers A, S, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #92
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>20 xx xx JSR @rts15
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; requires @rts15; and writes in stack
|-
|<pre>20 xx xx JSR @rts15
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, C, and V; requires @rts15; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
E6 xx    INC @zptemp
20 xx xx JSR @rts12
90 F8    BCC *-6</pre>||Clobbers A, Z&N, and C; requires @zptemp, and @rts12; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
20 xx xx JSR @rts14
90 F8    BCC *-6</pre>||Clobbers A, Z&N, and C; requires @zptemp, and @rts14; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
20 xx xx JSR @rts14
90 F8    BCC *-6</pre>||Clobbers A, Z&N, and C; requires @rts14, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
24 00    BIT $00
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 134 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #107
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 13    LDX #19
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A0 13    LDY #19
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>48      PHA
08      PHP
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>08      PHP
A9      LDA #100
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #100
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A2 12    LDX #18
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 12    LDY #18
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
20 xx xx JSR @rts14
B0 F9    BCS *-5</pre>||Clobbers A, Z&N, C, and V; requires @rts14; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
48      PHA
10 F9    BPL *-5</pre>||Clobbers A, S, Z&N, C, V, and D; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
20 xx xx JSR @rts15
10 F8    BPL *-6</pre>||Clobbers A, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
08      PHP      \ &times; 2
28      PLP      /
B0 F8    BCS *-6</pre>||Clobbers A, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #93
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
08      PHP
28      PLP
18      CLC
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
08      PHP
28      PLP
18      CLC
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 135 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #108
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A2 1A    LDX #26
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>68      PLA
A0 1A    LDY #26
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 1A    LDX #26
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 1A    LDY #26
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>08      PHP
A9      LDA #101
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #101
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>8C      TXA
48      PHA
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 19    LDY #25
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 19    LDA #25
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 19    LDA #25
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #94
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
08      PHP
28      PLP
30 FA    BMI *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 136 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 1B    LDY #27
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #109
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$08'
08      PHP ;first loop only
EA  ... NOP      &times; 2
30 FA    BMI *-4</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #102
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #102
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>38      SEC
A9 13    LDA #19
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
E6 xx    INC @zptemp
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers X; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 19    LDY #25
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A2 10    LDX #16
C5 00    CMP $00
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 10    LDY #16
C5 00    CMP $00
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #95
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
38      SEC
A9 12    LDA #18
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 12    LDA #18
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA      NOP
10 F9    BPL *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 137 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #110
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 11    LDX #17
48      PHA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>A0 11    LDY #17
48      PHA
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A2 11    LDX #17
A5 00    LDA $00
CA      DEX
D0 F9    BNE *-5</pre>||Clobbers A, X, and Z&N
|-
|<pre>A0 11    LDY #17
A5 00    LDA $00
88      DEY
D0 F9    BNE *-5</pre>||Clobbers A, Y, and Z&N
|-
|<pre>A2 11    LDX #17
A4 00    LDY $00
CA      DEX
D0 F9    BNE *-5</pre>||Clobbers X, Y, and Z&N
|-
|<pre>A0 11    LDY #17
C5 00    CMP $00
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, Z&N, and C
|-
|<pre>A2 11    LDX #17
C5 00    CMP $00
CA      DEX
D0 F9    BNE *-5</pre>||Clobbers X, Z&N, and C
|-
|<pre>A2 11    LDX #17
24 00    BIT $00
CA      DEX
D0 F9    BNE *-5</pre>||Clobbers X, Z&N, and V
|-
|<pre>A0 11    LDY #17
24 00    BIT $00
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, Z&N, and V
|-
|<pre>A2 11    LDX #17
85 xx    STA @zptemp
CA      DEX
D0 F9    BNE *-5</pre>||Clobbers X, and Z&N; and requires @zptemp
|-
|<pre>A0 11    LDY #17
85 xx    STA @zptemp
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, and Z&N; and requires @zptemp
|-
|<pre>A0 11    LDY #17
04 00    NOP $00
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, and Z&N; and requires support for unofficial opcodes
|-
|<pre>A2 11    LDX #17
04 00    NOP $00
CA      DEX
D0 F9    BNE *-5</pre>||Clobbers X, and Z&N; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #103
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #103
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A4 00    LDY $00
A0 13    LDY #19
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>A6 00    LDX $00
A2 13    LDX #19
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>68      PLA
38      SEC
A9 1A    LDA #26
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 19    LDY #25
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #96
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 19    LDA #25
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 19    LDA #25
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
28      PLP
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 138 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #111
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 1B    LDY #27
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A2 1A    LDX #26
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 1A    LDY #26
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #104
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #104
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; requires @rts12; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1
68      PLA
AA      TAX</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #97
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>20 xx xx JSR @rts15
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
28      PLP</pre>||Clobbers A; requires @rts15; and writes in stack
|-
|<pre>8C      TXA
48      PHA
A2 12    LDX #18
EA      NOP
CA      DEX
D0 FA    BNE *-4
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>20 xx xx JSR @rts15
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA</pre>||Clobbers Z&N, C, and V; requires @rts15; and writes in stack
|-
|<pre>08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
85 xx    STA @zptemp
10 F8    BPL *-6
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
85 xx    STA @zptemp
10 F8    BPL *-6
68      PLA</pre>||Clobbers Z&N, C, V, and D; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
08      PHP
38      SEC
A9 19    LDA #25
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 19    LDA #25
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
04 00    NOP $00
10 F8    BPL *-6
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
04 00    NOP $00
10 F8    BPL *-6
68      PLA</pre>||Clobbers Z&N, C, V, and D; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
38      SEC
A9 10    LDA #16
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 10    LDA #16
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA      NOP
10 F9    BPL *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 139 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #112
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A0 1B    LDY #27
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 1B    LDY #27
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
48      PHA
10 F9    BPL *-5</pre>||Clobbers A, S, Z&N, C, V, and D; and writes in stack
|-
|<pre>08      PHP
A9      LDA #105
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #105
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
85 xx    STA @zptemp
10 F8    BPL *-6</pre>||Clobbers A, Z&N, C, V, and D; and requires @zptemp
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>38      SEC
A9 11    LDA #17
48      PHA
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
04 00    NOP $00
10 F8    BPL *-6</pre>||Clobbers A, Z&N, C, V, and D; and requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
BA      TSX
68      PLA
9A      TXS
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1
28      PLP</pre>||Clobbers A, and X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>38      SEC
A9 11    LDA #17
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>68      PLA
8C      TXA
48      PHA
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1
68      PLA
AA      TAX</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 19    LDY #25
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #98
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
8C      TXA
48      PHA
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A0 19    LDY #25
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 18    LDX #24
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 19    LDA #25
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
28      PLP
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 140 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #113
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 1B    LDY #27
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A0 1B    LDY #27
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #106
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #106
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 1A    LDX #26
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 1A    LDY #26
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 1A    LDA #26
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 1A    LDA #26
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #99
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
20 xx xx JSR @rts15
90 F9    BCC *-5
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>20 xx xx JSR @rts15
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Requires @rts15; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
E6 xx    INC @zptemp
20 xx xx JSR @rts12
90 F8    BCC *-6
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp, and @rts12; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
20 xx xx JSR @rts14
90 F8    BCC *-6
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp, and @rts14; and writes in stack
|-
|<pre>48      PHA
08      PHP
28      PLP
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
20 xx xx JSR @rts14
90 F8    BCC *-6
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
24 00    BIT $00
28      PLP
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 141 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 1C    LDX #28
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #114
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>48      PHA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
A9      LDA #107
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #107
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 13    LDY #19
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 13    LDX #19
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
08      PHP
28      PLP
30 F9    BMI *-5</pre>||Clobbers A, Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #100
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA  ... NOP      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
20 xx xx JSR @rts14
B0 F9    BCS *-5
28      PLP</pre>||Clobbers A; requires @rts14; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
20 xx xx JSR @rts14
B0 F9    BCS *-5
68      PLA</pre>||Clobbers Z&N, C, and V; requires @rts14; and writes in stack
|-
|<pre>68      PLA
8C      TXA
48      PHA
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
08      PHP      \ &times; 2
28      PLP      /
B0 F8    BCS *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
20 xx xx JSR @rts15
10 F8    BPL *-6
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
08      PHP      \ &times; 2
28      PLP      /
B0 F8    BCS *-6
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
08      PHP
28      PLP
18      CLC
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 142 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #115
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>A2 98    LDX #152 ;hides 'TYA'
EA      NOP
CA  ... DEX      &times; 2
30 FA    BMI *-4</pre>||Clobbers A, X, and Z&N
|-
|<pre>A0 98    LDY #152 ;hides 'TYA'
EA      NOP
88  ... DEY      &times; 2
30 FA    BMI *-4</pre>||Clobbers A, Y, and Z&N
|-
|<pre>48  ... PHA      &times; 2
A0 1B    LDY #27
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>A0 1A    LDY #26 ;hides 'NOP'
EA      NOP
88  ... DEY      &times; 2
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N; and requires support for unofficial opcodes
|-
|<pre>A2 1A    LDX #26 ;hides 'NOP'
EA      NOP
CA  ... DEX      &times; 2
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N; and requires support for unofficial opcodes
|-
|<pre>68      PLA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #108
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #108
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 3
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A0 1B    LDY #27
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>68      PLA
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V
|-
|<pre>EA  ... NOP      &times; 2
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires @rts12; and writes in stack
|-
|<pre>98      TYA
48      PHA
A0 1A    LDY #26
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 1A    LDY #26
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 1A    LDX #26
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #101
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 1A    LDA #26
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 19    LDA #25
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 143 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #116
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 1C    LDX #28
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 1B    LDY #27
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #109
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #109
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
08      PHP
28      PLP
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
08      PHP
28      PLP
18      CLC
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #102
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
38      SEC
A9 13    LDA #19
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 13    LDA #19
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 12    LDA #18
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 144 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #117
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A2 1C    LDX #28
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 1C    LDX #28
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #110
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #110
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A0 11    LDY #17
24 00    BIT $00
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 11    LDX #17
C5 00    CMP $00
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
48      PHA
A9      LDA #103
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires @rts12; and writes in stack
|-
|<pre>EA      NOP
98      TYA
48      PHA
A0 1A    LDY #26
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 1A    LDA #26
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 19    LDA #25
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 145 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #118
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 12    LDY #18
48      PHA
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>A2 12    LDX #18
48      PHA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 1C    LDX #28
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA      NOP
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #111
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #111
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 1B    LDY #27
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #104
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, and C; requires @rts12; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
8C      TXA
48      PHA
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1
68      PLA
AA      TAX
68      PLA</pre>||Clobbers S, and Z&N; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>20 xx xx JSR @rts15
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
B0 FC    BCS *-2
68      PLA
28      PLP</pre>||Requires @rts15; and writes in stack
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 12    LDX #18
EA      NOP
CA      DEX
D0 FA    BNE *-4
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
85 xx    STA @zptemp
10 F8    BPL *-6
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
38      SEC
A9 19    LDA #25
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
04 00    NOP $00
10 F8    BPL *-6
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 10    LDA #16
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 146 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 1D    LDY #29
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9      LDA #119
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>48      PHA
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
A9      LDA #112
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #112
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48      PHA
08      PHP
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 1B    LDY #27
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>04 00    NOP $00
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A6 00    LDX $00
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 1B    LDY #27
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>A5 00    LDA $00
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
08      PHP
28      PLP
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #105
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
85 xx    STA @zptemp
10 F8    BPL *-6
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
85 xx    STA @zptemp
10 F8    BPL *-6
68      PLA</pre>||Clobbers Z&N, C, V, and D; requires @zptemp; and writes in stack
|-
|<pre>68      PLA
98      TYA
48      PHA
A0 1A    LDY #26
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
04 00    NOP $00
10 F8    BPL *-6
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
04 00    NOP $00
10 F8    BPL *-6
68      PLA</pre>||Clobbers Z&N, C, V, and D; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
38      SEC
A9 11    LDA #17
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 11    LDA #17
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
48      PHA
8C      TXA
48      PHA
A2 19    LDX #25
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 19    LDA #25
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 147 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #120
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>48  ... PHA      &times; 2
A2 1C    LDX #28
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>68      PLA
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #113
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #113
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 3
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A2 1C    LDX #28
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA  ... NOP      &times; 2
10 F8    BPL *-6</pre>||Clobbers A, Z&N, C, V, and D
|-
|<pre>68      PLA
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V
|-
|<pre>38      SEC
A9 12    LDA #18
48      PHA
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 1B    LDY #27
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #106
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 1A    LDA #26
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 148 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #121
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 15    LDY #21
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 15    LDX #21
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$9A'
9A      TXS ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A2 1C    LDX #28
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>38      SEC
A9 1D    LDA #29
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #114
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #114
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>48      PHA
08      PHP
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, and S; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #107
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
08      PHP
28      PLP
30 F9    BMI *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
08      PHP
28      PLP
30 F9    BMI *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48  ... PHA      &times; 3
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, and C; requires @rts12; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA  ... NOP      &times; 3
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
20 xx xx JSR @rts14
B0 F9    BCS *-5
68      PLA
28      PLP</pre>||Requires @rts14; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
8C      TXA
48      PHA
A2 E8    LDX #232 ;hides 'INX'
D0 FD    BNE *-1
68      PLA
AA      TAX
68      PLA</pre>||Clobbers S, and Z&N; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A      ROL A ;first loop only
08      PHP      \ &times; 2
28      PLP      /
B0 F8    BCS *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 149 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #122
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A0 1D    LDY #29
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A4 00    LDY $00
A0 1D    LDY #29
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A6 00    LDX $00
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>08      PHP
A9      LDA #115
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #115
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48  ... PHA      &times; 2
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A2 98    LDX #152 ;hides 'TYA'
EA      NOP
CA  ... DEX      &times; 2
30 FA    BMI *-4
28      PLP</pre>||Clobbers A, and X; and writes in stack
|-
|<pre>08      PHP
A0 98    LDY #152 ;hides 'TYA'
EA      NOP
88  ... DEY      &times; 2
30 FA    BMI *-4
28      PLP</pre>||Clobbers A, and Y; and writes in stack
|-
|<pre>EA      NOP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA  ... NOP      &times; 2
10 F8    BPL *-6</pre>||Clobbers A, Z&N, C, V, and D
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 1B    LDY #27
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A0 1A    LDY #26 ;hides 'NOP'
EA      NOP
88  ... DEY      &times; 2
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
A2 1A    LDX #26 ;hides 'NOP'
EA      NOP
CA  ... DEX      &times; 2
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; requires support for unofficial opcodes; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>68      PLA
08      PHP
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, S, and Z&N; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #108
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
8C      TXA
48      PHA
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A0 1B    LDY #27
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires @rts12; and writes in stack
|-
|<pre>48      PHA
98      TYA
48      PHA
A0 1A    LDY #26
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 1A    LDA #26
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 150 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #123
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 1D    LDY #29
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 1D    LDY #29
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA      NOP
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$9A'
9A      TXS ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #116
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #116
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 1C    LDX #28
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>38      SEC
A9 15    LDA #21
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #109
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
08      PHP
28      PLP
18      CLC
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 13    LDA #19
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 151 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 1E    LDY #30
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 1E    LDX #30
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9      LDA #124
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$9A'
9A      TXS ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #117
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #117
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 1C    LDX #28
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A4 00    LDY $00
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 1C    LDX #28
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #110
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>68      PLA
8C      TXA
48      PHA
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, and S; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA  ... NOP      &times; 2
8C      TXA
48      PHA
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
48      PHA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts12
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires @rts12; and writes in stack
|-
|<pre>EA      NOP
48      PHA
98      TYA
48      PHA
A0 1A    LDY #26
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 1A    LDA #26
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 152 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #125
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>48  ... PHA      &times; 2
A0 1D    LDY #29
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>68      PLA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$9A'
9A      TXS ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #118
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #118
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 3
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A0 1D    LDY #29
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|9 bytes
|-
|<pre>98      TYA
48      PHA
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 1C    LDX #28
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
08      PHP
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>EA      NOP
48      PHA
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #111
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 153 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 EA    LDX #234 ;hides 'NOP'
E8      INX
D0 FC    BNE *-2</pre>||Clobbers X, and Z&N
|-
|<pre>A0 EA    LDY #234 ;hides 'NOP'
C8      INY
D0 FC    BNE *-2</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #126
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$08'
08      PHP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 1D    LDY #29
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>38      SEC
A9 1E    LDA #30
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #119
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #119
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>48      PHA
08      PHP
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, and S; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #112
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
08      PHP
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>04 00    NOP $00
08      PHP
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>04 00    NOP $00
48      PHA
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
A5 00    LDA $00
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>24 00    BIT $00
48      PHA
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
85 xx    STA @zptemp
10 F8    BPL *-6
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
EA  ... NOP      &times; 2
08      PHP
28      PLP
18      CLC
D0 F8    BNE *-6
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
04 00    NOP $00
10 F8    BPL *-6
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 11    LDA #17
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 154 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #127
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A2 1E    LDX #30
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A0 1E    LDY #30
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 1E    LDX #30
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 1E    LDY #30
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #120
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #120
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48  ... PHA      &times; 2
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$9A'
9A      TXS ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; requires @rts14; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 1C    LDX #28
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>68      PLA
08      PHP
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, S, and Z&N; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #113
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA  ... NOP      &times; 2
10 F8    BPL *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A2 1C    LDX #28
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA  ... NOP      &times; 2
10 F8    BPL *-6
68      PLA</pre>||Clobbers Z&N, C, V, and D; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 155 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #128
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 16    LDX #22
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A0 16    LDY #22
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #121
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #121
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 15    LDY #21
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 15    LDX #21
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; requires @rts14; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 1D    LDA #29
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 1D    LDA #29
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #114
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
08      PHP
48      PHA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Clobbers S; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
08      PHP
28      PLP
30 F9    BMI *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 156 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 1F    LDY #31
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 1F    LDX #31
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #122
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #122
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48      PHA
08      PHP
A0 1D    LDY #29
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A6 00    LDX $00
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 1D    LDY #29
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; requires @zptemp, and @rts14; and writes in stack
|-
|<pre>EA      NOP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #115
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>68      PLA
98      TYA
48      PHA
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, and S; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA      NOP
08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA  ... NOP      &times; 2
10 F8    BPL *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA  ... NOP      &times; 2
10 F8    BPL *-6
68      PLA</pre>||Clobbers Z&N, C, V, and D; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
48      PHA
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
48      PHA
8C      TXA
48      PHA
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 157 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #130
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 EA    LDY #234 ;hides 'NOP'
C8      INY
D0 FC    BNE *-2</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 EA    LDX #234 ;hides 'NOP'
E8      INX
D0 FC    BNE *-2</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA      NOP
A2 16    LDX #22
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 16    LDY #22
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>A0 0D    LDY #13
08      PHP
28      PLP
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, and Z&N; and writes in stack
|-
|<pre>A2 0D    LDX #13
08      PHP
28      PLP
CA      DEX
D0 F9    BNE *-5</pre>||Clobbers X, and Z&N; and writes in stack
|-
|<pre>18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #123
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #123
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 1D    LDY #29
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #116
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
38      SEC
A9 15    LDA #21
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 15    LDA #21
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 158 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #131
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 1F    LDX #31
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 1F    LDY #31
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 1E    LDY #30
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 1E    LDX #30
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A9      LDA #124
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #124
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires @rts14; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #117
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48  ... PHA      &times; 2
08      PHP
48      PHA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Clobbers S; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
8C      TXA
48      PHA
A2 1B    LDX #27
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
48      PHA
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
48      PHA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|14 bytes
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
48      PHA
38      SEC
A9 1B    LDA #27
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 159 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #132
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A0 1F    LDY #31
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A2 1F    LDX #31
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 1F    LDX #31
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 1F    LDY #31
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>A5 00    LDA $00
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #125
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #125
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
20 xx xx JSR @rts12
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, and C; requires @rts12; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
20 xx xx JSR @rts12
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, and C; requires @zptemp, and @rts12; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 1D    LDY #29
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 5
D0 F8    BNE *-6</pre>||Clobbers A, S, Z&N, and C; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
20 xx xx JSR @rts12
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, and C; requires @rts12, and support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #118
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>8C      TXA
48      PHA
A2 15    LDX #21
EA      NOP
CA      DEX
D0 FA    BNE *-4
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A0 1D    LDY #29
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
98      TYA
48      PHA
A0 1C    LDY #28
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 1D    LDA #29
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
48      PHA
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 160 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #133
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 1F    LDY #31
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 1F    LDX #31
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>68      PLA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 EA    LDY #234 ;hides 'NOP'
C8      INY
D0 FC    BNE *-2
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 EA    LDX #234 ;hides 'NOP'
E8      INX
D0 FC    BNE *-2
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #126
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #126
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 1E    LDA #30
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 1E    LDA #30
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #119
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Clobbers S; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48      PHA
08      PHP
48      PHA
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>04 00    NOP $00
08      PHP
48      PHA
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
24 00    BIT $00
48      PHA
38      SEC
A9 1C    LDA #28
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 161 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 20    LDY #32
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 20    LDX #32
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>A9      LDA #134
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>E6 xx    INC @zptemp
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V; and requires @zptemp
|-
|<pre>EA      NOP
48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #127
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #127
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>EA      NOP
A5 00    LDA $00
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>48      PHA
08      PHP
A0 1E    LDY #30
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 1E    LDX #30
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A6 00    LDX $00
A2 1E    LDX #30
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 1E    LDY #30
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
20 xx xx JSR @rts12
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #120
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
20 xx xx JSR @rts12
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, and C; requires @zptemp, and @rts12; and writes in stack
|-
|<pre>68      PLA
8C      TXA
48      PHA
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, and S; requires @rts14; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
20 xx xx JSR @rts12
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, and C; requires @rts12, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA  ... NOP      &times; 2
8C      TXA
48      PHA
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>08      PHP
A5 00    LDA $00
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires @rts14; and writes in stack
|-
|<pre>C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
38      SEC
A9 1D    LDA #29
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA  ... NOP      &times; 2
10 F8    BPL *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 162 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #135
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 17    LDX #23
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A0 17    LDY #23
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #128
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #128
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
D0 FB    BNE *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 16    LDY #22
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 16    LDX #22
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
D0 FB    BNE *-3
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #121
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 1D    LDA #29
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 163 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #136
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 20    LDX #32
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 20    LDY #32
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 1F    LDY #31
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 1F    LDX #31
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #122
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>E6 xx    INC @zptemp
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp, and @rts14; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, and C; requires @rts14; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, and C; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
48      PHA
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$7A'
7A      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Clobbers S; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA  ... NOP      &times; 2
10 F8    BPL *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 164 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #137
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A0 20    LDY #32
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A2 20    LDX #32
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 20    LDX #32
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 20    LDY #32
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 F9    BCS *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #130
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #130
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A2 0D    LDX #13
08      PHP
28      PLP
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 0D    LDY #13
08      PHP
28      PLP
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #123
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 15    LDA #21
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 165 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #138
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 20    LDY #32
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 20    LDX #32
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>68      PLA
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 20    LDX #32
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 20    LDY #32
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #131
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #131
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 1F    LDX #31
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 1F    LDY #31
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #124
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires @rts14; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 166 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 21    LDY #33
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 21    LDX #33
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9      LDA #139
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>68      PLA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3</pre>||Clobbers A, S, Z&N, C, and V
|-
|<pre>E6 xx    INC @zptemp
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V; and requires @zptemp, and support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #132
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #132
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>48      PHA
08      PHP
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 1F    LDX #31
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 1F    LDY #31
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A5 00    LDA $00
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 1F    LDX #31
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 1F    LDY #31
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>24 00    BIT $00
48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #125
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
20 xx xx JSR @rts12
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp, and @rts12; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
20 xx xx JSR @rts12
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 15    LDX #21
EA      NOP
CA      DEX
D0 FA    BNE *-4
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 1D    LDA #29
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 167 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 18    LDX #24 ;hides 'CLC'
CA      DEX
D0 FC    BNE *-2</pre>||Clobbers X, and Z&N
|-
|<pre>A0 18    LDY #24 ;hides 'CLC'
88      DEY
D0 FC    BNE *-2</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #140
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>48  ... PHA      &times; 2
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
A9      LDA #133
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #133
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
18      CLC
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3</pre>||Clobbers A, Z&N, C, and V; and requires @zptemp
|-
|<pre>68      PLA
08      PHP
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 1F    LDX #31
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 1F    LDY #31
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #126
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 1E    LDA #30
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 168 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #141
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 21    LDX #33
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 21    LDY #33
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 20    LDY #32
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 20    LDX #32
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 21    LDA #33
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
A9      LDA #134
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #134
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
E6 xx    INC @zptemp
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, C, and V; requires @zptemp; and writes in stack
|-
|<pre>EA      NOP
48      PHA
08      PHP
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #127
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
EA      NOP
A5 00    LDA $00
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>EA      NOP
24 00    BIT $00
48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
20 xx xx JSR @rts12
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp, and @rts12; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Clobbers S; requires @rts14; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
20 xx xx JSR @rts12
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
8C      TXA
48      PHA
A2 1D    LDX #29
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>08      PHP
C5 00    CMP $00
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires @rts14; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
48      PHA
38      SEC
A9 1D    LDA #29
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|14 bytes
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
48      PHA
38      SEC
A9 1D    LDA #29
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 169 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #142
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 18    LDX #24
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A0 18    LDY #24
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>68  ... PLA      &times; 2
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, S, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #135
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #135
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A0 17    LDY #23
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 17    LDX #23
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #128
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
D0 FB    BNE *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 170 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #143
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 C8    LDY #200 ;hides 'INY'
C8  ... INY      &times; 2
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>48      PHA
A2 18    LDX #24 ;hides 'CLC'
CA      DEX
D0 FC    BNE *-2</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>A2 5A    LDX #90 ;hides 'NOP'
E8  ... INX      &times; 2
10 FB    BPL *-3</pre>||Clobbers X, and Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 21    LDX #33
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>08      PHP
A9      LDA #136
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #136
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 20    LDX #32
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 20    LDY #32
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 21    LDA #33
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 171 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 22    LDX #34
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 22    LDY #34
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #144
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #137
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #137
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>38      SEC
A9 18    LDA #24
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>48      PHA
08      PHP
A0 20    LDY #32
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 20    LDX #32
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, and S; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 F9    BCS *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 20    LDY #32
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 20    LDX #32
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 F9    BCS *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #130
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 172 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #145
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 13    LDY #19
68      PLA
88      DEY
D0 FA    BNE *-4</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>A2 13    LDX #19
68      PLA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>A2 13    LDX #19
EA  ... NOP      &times; 2
CA      DEX
D0 F9    BNE *-5</pre>||Clobbers X, and Z&N
|-
|<pre>A0 13    LDY #19
EA  ... NOP      &times; 2
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #138
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #138
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>68      PLA
38      SEC
A9 21    LDA #33
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V
|-
|<pre>68      PLA
08      PHP
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, S, and Z&N; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 20    LDX #32
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 20    LDY #32
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 20    LDX #32
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #131
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 173 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #146
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A0 22    LDY #34
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA      NOP
A2 22    LDX #34
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 21    LDY #33
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 21    LDX #33
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #139
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #139
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>68      PLA
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
28      PLP</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
E6 xx    INC @zptemp
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; requires @zptemp, and support for unofficial opcodes; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
48      PHA
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, C, and V; requires @zptemp, and support for unofficial opcodes; and writes in stack
|-
|<pre>EA      NOP
48      PHA
08      PHP
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, and S; requires support for unofficial opcodes; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #132
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
24 00    BIT $00
48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 174 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 E8    LDX #232 ;hides 'INX'
EA      NOP
D0 FC    BNE *-2</pre>||Clobbers X, and Z&N
|-
|<pre>A0 98    LDY #152 ;hides 'TYA'
88      DEY
30 FC    BMI *-2</pre>||Clobbers A, Y, and Z&N
|-
|<pre>A9      LDA #147
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A0 22    LDY #34
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 18    LDY #24 ;hides 'CLC'
88      DEY
D0 FC    BNE *-2
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 18    LDX #24 ;hides 'CLC'
CA      DEX
D0 FC    BNE *-2
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A9      LDA #140
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #140
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>38      SEC
A9 13    LDA #19
EA  ... NOP      &times; 2
E9 01    SBC #1
D0 F7    BNE *-7</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, and S; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #133
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
8C      TXA
48      PHA
A2 20    LDX #32
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>08      PHP
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
18      CLC
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; requires @rts14; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
18      CLC
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
E6 xx    INC @zptemp
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>E6 xx    INC @zptemp
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
68      PLA</pre>||Clobbers Z&N, C, and V; requires @zptemp; and writes in stack
|-
|<pre>EA      NOP
48      PHA
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>EA      NOP
48  ... PHA      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
48      PHA
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 175 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #148
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 22    LDY #34
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 22    LDX #34
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A0 22    LDY #34
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A2 22    LDX #34
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>08      PHP
A9      LDA #141
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #141
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A0 21    LDY #33
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 21    LDX #33
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
18      CLC
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
20 xx xx JSR @rts14
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, and C; requires @rts14; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 21    LDA #33
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 21    LDA #33
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #134
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
E6 xx    INC @zptemp
48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>EA      NOP
48      PHA
08      PHP
48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
EA      NOP
24 00    BIT $00
48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 176 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 23    LDY #35
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #149
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #142
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #142
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 18    LDY #24
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 18    LDX #24
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>20 xx xx JSR @rts15
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2</pre>||Clobbers A, Z&N, C, and V; requires @rts15, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>A5 00    LDA $00
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>68  ... PLA      &times; 2
08      PHP
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A, S, and Z&N; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #135
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 177 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #150
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 16    LDY #22
48      PHA
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>A2 16    LDX #22
48      PHA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
48      PHA
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 E8    LDX #232 ;hides 'INX'
EA      NOP
D0 FC    BNE *-2</pre>||Clobbers X, and Z&N
|-
|<pre>A0 16    LDY #22
A5 00    LDA $00
88      DEY
D0 F9    BNE *-5</pre>||Clobbers A, Y, and Z&N
|-
|<pre>A0 16    LDY #22
C5 00    CMP $00
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, Z&N, and C
|-
|<pre>A0 16    LDY #22
24 00    BIT $00
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, Z&N, and V
|-
|<pre>A0 16    LDY #22
85 xx    STA @zptemp
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, and Z&N; and requires @zptemp
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires @zptemp
|-
|<pre>A0 16    LDY #22
04 00    NOP $00
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, and Z&N; and requires support for unofficial opcodes
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #143
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #143
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 C8    LDY #200 ;hides 'INY'
C8  ... INY      &times; 2
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
4C xx xx JMP *+3
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V; and not relocatable code
|-
|<pre>48      PHA
08      PHP
A2 18    LDX #24 ;hides 'CLC'
CA      DEX
D0 FC    BNE *-2
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>08      PHP
A2 5A    LDX #90 ;hides 'NOP'
E8  ... INX      &times; 2
10 FB    BPL *-3
28      PLP</pre>||Clobbers X; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 21    LDX #33
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 21    LDX #33
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #136
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 21    LDA #33
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 21    LDA #33
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
28      PLP
08      PHP
48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 178 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #151
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 23    LDY #35
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 22    LDY #34
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 22    LDX #34
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #144
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #144
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 18    LDX #24 ;hides 'CLC'
CA      DEX
D0 FC    BNE *-2
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #137
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
38      SEC
A9 18    LDA #24
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 18    LDA #24
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Clobbers S; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 F9    BCS *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 179 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #152
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 15    LDX #21 ;hides 'ORA zp,X'
CA      DEX ;first loop only
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, and Z&N
|-
|<pre>A0 15    LDY #21 ;hides 'ORA zp,X'
88      DEY ;first loop only
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, and Z&N
|-
|<pre>A0 D8    LDY #216 ;hides 'CLD'
C8  ... INY      &times; 2
D0 FB    BNE *-3</pre>||Clobbers Y, Z&N, and D
|-
|<pre>A2 D8    LDX #216 ;hides 'CLD'
E8  ... INX      &times; 2
D0 FB    BNE *-3</pre>||Clobbers X, Z&N, and D
|-
|<pre>48      PHA
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A0 23    LDY #35
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>A2 14    LDX #20 ;hides 'NOP zp,X'
EA      NOP
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N; and requires support for unofficial opcodes
|-
|<pre>A0 14    LDY #20 ;hides 'NOP zp,X'
EA      NOP
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|7 bytes
|-
|<pre>A4 00    LDY $00
A0 23    LDY #35
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A6 00    LDX $00
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
48      PHA
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #145
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #145
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, C, and V; and requires @zptemp
|-
|<pre>18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A2 13    LDX #19
EA  ... NOP      &times; 2
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 13    LDY #19
EA  ... NOP      &times; 2
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>38      SEC
A9 16    LDA #22
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
18      CLC
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>68      PLA
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
20 xx xx JSR @rts14
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #138
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
8C      TXA
48      PHA
A2 21    LDX #33
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 20    LDX #32
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 21    LDA #33
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
28      PLP
08      PHP
48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 180 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #153
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 23    LDY #35
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A0 23    LDY #35
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
48      PHA
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #146
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #146
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A0 22    LDY #34
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 22    LDX #34
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #139
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
E6 xx    INC @zptemp
48      PHA
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Requires @zptemp, and support for unofficial opcodes; and writes in stack
|-
|<pre>EA      NOP
48      PHA
08      PHP
48      PHA
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Clobbers S; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 181 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 24    LDY #36
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 24    LDX #36
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9      LDA #154
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A2 E8    LDX #232 ;hides 'INX'
EA      NOP
D0 FC    BNE *-2
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 98    LDY #152 ;hides 'TYA'
88      DEY
30 FC    BMI *-2
28      PLP</pre>||Clobbers A, and Y; and writes in stack
|-
|<pre>68      PLA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
48      PHA
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #147
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #147
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48      PHA
08      PHP
A0 22    LDY #34
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>38      SEC
A9 14    LDA #20 ;hides 'NOP zp,X'
EA      NOP
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
28      PLP
08      PHP
A0 18    LDY #24 ;hides 'CLC'
88      DEY
D0 FC    BNE *-2
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>A5 00    LDA $00
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
48      PHA
A9      LDA #140
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>98      TYA
48      PHA
A0 C8    LDY #200 ;hides 'INY'
C8  ... INY      &times; 2
D0 FB    BNE *-3
68      PLA
A8      TAY</pre>||Clobbers A, and Z&N; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
38      SEC
A9 13    LDA #19
EA  ... NOP      &times; 2
E9 01    SBC #1
D0 F7    BNE *-7
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 13    LDA #19
EA  ... NOP      &times; 2
E9 01    SBC #1
D0 F7    BNE *-7
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
48      PHA
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Clobbers S; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
48      PHA
8C      TXA
48      PHA
A2 20    LDX #32
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts14
18      CLC
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Requires @rts14; and writes in stack
|-
|<pre>08      PHP
E6 xx    INC @zptemp
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>EA      NOP
48      PHA
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
48      PHA
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP      \ &times; 2
28      PLP      /
18      CLC
D0 F8    BNE *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 182 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #155
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>A2 EC    LDX #236 ;hides 'CPX abs'
E6 xx    INC @zptemp
E8      INX
D0 FA    BNE *-4</pre>||Clobbers X, Z&N, and C; and requires @zptemp
|-
|<pre>A0 EC    LDY #236 ;hides 'CPX abs'
E6 xx    INC @zptemp
C8      INY
D0 FA    BNE *-4</pre>||Clobbers Y, Z&N, and C; and requires @zptemp
|-
|<pre>48  ... PHA      &times; 2
A0 23    LDY #35
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
A9      LDA #148
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #148
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 3
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A0 23    LDY #35
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>68      PLA
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 22    LDX #34
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 22    LDY #34
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 22    LDX #34
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #141
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
20 xx xx JSR @rts15
18      CLC
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 21    LDA #33
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 183 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #156
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 1A    LDX #26
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A0 1A    LDY #26
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 23    LDY #35
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #149
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #149
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
20 xx xx JSR @rts15
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, and C; requires @rts15; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
20 xx xx JSR @rts14
18      CLC
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
20 xx xx JSR @rts15
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, and C; requires @zptemp, and @rts15; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
20 xx xx JSR @rts12
D0 F8    BNE *-6</pre>||Clobbers A, S, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
20 xx xx JSR @rts15
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, and C; requires @rts15, and support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #142
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
08      PHP      \ &times; 2
28      PLP      /
18      CLC
D0 F7    BNE *-7</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>48      PHA
08      PHP
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>20 xx xx JSR @rts15
08      PHP
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
28      PLP</pre>||Clobbers A; requires @rts15, and support for unofficial opcodes; and writes in stack
|-
|<pre>20 xx xx JSR @rts15
48      PHA
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA</pre>||Clobbers Z&N, C, and V; requires @rts15, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
A5 00    LDA $00
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>24 00    BIT $00
48      PHA
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
28      PLP
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA      NOP
B0 FB    BCS *-3
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 184 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #157
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A2 24    LDX #36
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A0 24    LDY #36
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 24    LDX #36
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 24    LDY #36
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #150
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #150
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48      PHA
08      PHP
A2 E8    LDX #232 ;hides 'INX'
EA      NOP
D0 FC    BNE *-2
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 98    LDY #152 ;hides 'TYA'
88      DEY
30 FC    BMI *-2
28      PLP</pre>||Clobbers A, Y, and S; and writes in stack
|-
|<pre>48      PHA
68      PLA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
48      PHA
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A0 16    LDY #22
C5 00    CMP $00
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 16    LDX #22
24 00    BIT $00
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires @zptemp; and writes in stack
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #143
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
4C xx xx JMP *+3
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; writes in stack; and not relocatable code
|-
|<pre>EA      NOP
8C      TXA
48      PHA
A2 22    LDX #34
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
4C xx xx JMP *+3
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; writes in stack; and not relocatable code
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 21    LDX #33
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 21    LDA #33
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 185 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #158
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 17    LDX #23
48      PHA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>A0 17    LDY #23
48      PHA
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
48      PHA
B0 FB    BCS *-3</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 24    LDX #36
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 24    LDY #36
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
B0 FA    BCS *-4</pre>||Clobbers A, Z&N, C, and V; and requires @zptemp
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
B0 FA    BCS *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #151
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #151
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A0 23    LDY #35
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 1A    LDA #26
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #144
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 18    LDX #24 ;hides 'CLC'
CA      DEX
D0 FC    BNE *-2
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 18    LDA #24
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 186 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 25    LDY #37
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 25    LDX #37
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9      LDA #159
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>48      PHA
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
A9      LDA #152
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #152
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 D8    LDY #216 ;hides 'CLD'
C8  ... INY      &times; 2
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 D8    LDX #216 ;hides 'CLD'
E8  ... INX      &times; 2
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>04 00    NOP $00
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>A5 00    LDA $00
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
20 xx xx JSR @rts15
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #145
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
D0 F8    BNE *-6
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, C, and V; requires @zptemp; and writes in stack
|-
|<pre>68      PLA
8C      TXA
48      PHA
A2 22    LDX #34
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
D0 F8    BNE *-6
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
38      SEC
A9 16    LDA #22
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 16    LDA #22
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
48      PHA
8C      TXA
48      PHA
A2 21    LDX #33
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 21    LDA #33
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 187 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #160
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>48  ... PHA      &times; 2
A0 24    LDY #36
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A2 24    LDX #36
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
48      PHA
B0 F9    BCS *-5</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #153
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #153
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 3
A2 24    LDX #36
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A0 24    LDY #36
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
B0 F8    BCS *-6</pre>||Clobbers A, Z&N, C, and V; and requires @zptemp
|-
|<pre>18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
B0 F8    BCS *-6</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 23    LDY #35
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #146
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 188 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #161
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 25    LDX #37
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 25    LDY #37
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 24    LDY #36
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 24    LDX #36
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #154
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #154
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #147
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
08      PHP
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
38      SEC
A9 14    LDA #20 ;hides 'NOP zp,X'
EA      NOP
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 14    LDA #20 ;hides 'NOP zp,X'
EA      NOP
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
A5 00    LDA $00
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>24 00    BIT $00
48      PHA
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48      PHA
98      TYA
48      PHA
A0 C8    LDY #200 ;hides 'INY'
C8  ... INY      &times; 2
D0 FB    BNE *-3
68      PLA
A8      TAY
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 13    LDA #19
EA  ... NOP      &times; 2
E9 01    SBC #1
D0 F7    BNE *-7
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 189 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #162
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A0 25    LDY #37
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A2 25    LDX #37
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 25    LDX #37
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 25    LDY #37
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>68      PLA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
48      PHA
B0 FB    BCS *-3</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #155
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #155
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A2 EC    LDX #236 ;hides 'CPX abs'
E6 xx    INC @zptemp
E8      INX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; requires @zptemp; and writes in stack
|-
|<pre>08      PHP
A0 EC    LDY #236 ;hides 'CPX abs'
E6 xx    INC @zptemp
C8      INY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; requires @zptemp; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
B0 FA    BCS *-4</pre>||Clobbers A, Z&N, C, and V; and requires @zptemp
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 23    LDY #35
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
B0 FA    BCS *-4</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
48      PHA
A9      LDA #148
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
8C      TXA
48      PHA
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A0 23    LDY #35
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 22    LDX #34
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 190 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #163
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 1B    LDY #27
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 1B    LDX #27
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #156
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #156
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 1A    LDY #26
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 1A    LDX #26
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #149
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
20 xx xx JSR @rts14
18      CLC
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
85 xx    STA @zptemp
20 xx xx JSR @rts15
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, and C; requires @zptemp, and @rts15; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
04 00    NOP $00
20 xx xx JSR @rts15
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
08      PHP      \ &times; 2
28      PLP      /
18      CLC
D0 F7    BNE *-7
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>20 xx xx JSR @rts15
08      PHP
48      PHA
A9 EB    LDA #$EB ;hides 'SBC #$18'
18      CLC ;first loop only
D0 FC    BNE *-2
68      PLA
28      PLP</pre>||Requires @rts15, and support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
24 00    BIT $00
48      PHA
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 191 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 26    LDX #38
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 26    LDY #38
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #164
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #157
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #157
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
20 xx xx JSR @rts14
30 F9    BMI *-5</pre>||Clobbers A, Z&N, C, and V; requires @rts14; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 24    LDX #36
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 24    LDY #36
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A6 00    LDX $00
A2 24    LDX #36
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 24    LDY #36
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
20 xx xx JSR @rts12
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
20 xx xx JSR @rts15
18      CLC
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>A5 00    LDA $00
38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
20 xx xx JSR @rts14
18      CLC
D0 F8    BNE *-6</pre>||Clobbers A, S, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #150
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
36 00    ROL $00,X
76 00    ROR $00,X
28      PLP
D0 F7    BNE *-7</pre>||Clobbers A, Z&N, and C; and writes in stack
|-
|<pre>68      PLA
8C      TXA
48      PHA
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA  ... NOP      &times; 2
8C      TXA
48      PHA
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
4C xx xx JMP *+3
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack; and not relocatable code
|-
|<pre>EA      NOP
48      PHA
8C      TXA
48      PHA
A2 22    LDX #34
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 22    LDA #34
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 192 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #165
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>EA      NOP
A2 1B    LDX #27
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 1B    LDY #27
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
EA      NOP
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
|<pre>08      PHP
A9      LDA #158
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #158
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>38      SEC
A9 1B    LDA #27
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 24    LDX #36
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>08      PHP
A2 17    LDX #23
C5 00    CMP $00
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 17    LDY #23
C5 00    CMP $00
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
B0 FA    BCS *-4
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
B0 FA    BCS *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires @zptemp; and writes in stack
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
B0 FA    BCS *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
B0 FA    BCS *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #151
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
38      SEC
A9 1A    LDA #26
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 1A    LDA #26
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 193 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #166
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 26    LDX #38
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 26    LDY #38
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 25    LDY #37
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 25    LDX #37
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #159
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #159
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>48      PHA
08      PHP
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, and S; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #152
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
20 xx xx JSR @rts12
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
20 xx xx JSR @rts15
18      CLC
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>48      PHA
08      PHP
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>04 00    NOP $00
08      PHP
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>04 00    NOP $00
48      PHA
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
A5 00    LDA $00
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>24 00    BIT $00
48      PHA
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
D0 F8    BNE *-6
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
20 xx xx JSR @rts14
18      CLC
D0 F8    BNE *-6
68      PLA</pre>||Clobbers S, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
D0 F8    BNE *-6
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 16    LDA #22
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 194 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #167
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A2 26    LDX #38
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A0 26    LDY #38
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 26    LDX #38
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 26    LDY #38
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #160
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #160
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
EA      NOP
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V; and requires support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>EA      NOP
38      SEC
A9 1B    LDA #27
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 24    LDY #36
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 24    LDX #36
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>68      PLA
08      PHP
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, S, and Z&N; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #153
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>8C      TXA
48      PHA
A2 1A    LDX #26
EA      NOP
CA      DEX
D0 FA    BNE *-4
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 17    LDX #23
C5 00    CMP $00
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 17    LDY #23
C5 00    CMP $00
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
B0 F8    BCS *-6
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
B0 F8    BCS *-6
68      PLA</pre>||Clobbers Z&N, C, and V; requires @zptemp; and writes in stack
|-
|<pre>08      PHP
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
B0 F8    BCS *-6
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
B0 F8    BCS *-6
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 195 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #168
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A2 26    LDX #38
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>68      PLA
A0 26    LDY #38
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 26    LDX #38
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 26    LDY #38
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #161
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #161
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 25    LDX #37
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 25    LDY #37
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #154
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48      PHA
08      PHP
48      PHA
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 14    LDA #20 ;hides 'NOP zp,X'
EA      NOP
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
24 00    BIT $00
48      PHA
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 196 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 27    LDX #39
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 27    LDY #39
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #169
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #162
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #162
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48      PHA
08      PHP
A2 25    LDX #37
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 25    LDY #37
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A6 00    LDX $00
A2 25    LDX #37
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 25    LDY #37
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>A5 00    LDA $00
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
48      PHA
A9      LDA #155
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>68      PLA
8C      TXA
48      PHA
A2 24    LDX #36
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, and S; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>98      TYA
48      PHA
A0 17    LDY #23
A5 00    LDA $00
88      DEY
D0 F9    BNE *-5
68      PLA
A8      TAY</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
B0 FA    BCS *-4
28      PLP</pre>||Clobbers A; requires @zptemp; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
B0 FA    BCS *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires @zptemp; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
B0 FA    BCS *-4
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
B0 FA    BCS *-4
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
48      PHA
8C      TXA
48      PHA
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 197 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #170
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 1C    LDX #28
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A0 1C    LDY #28
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #163
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #163
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 1B    LDY #27
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 1B    LDX #27
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>68      PLA
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 25    LDX #37
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #156
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 198 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #171
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 27    LDX #39
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 27    LDY #39
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A2 26    LDX #38
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 26    LDY #38
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A9      LDA #164
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #164
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #157
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
20 xx xx JSR @rts14
30 F9    BMI *-5
28      PLP</pre>||Clobbers A; requires @rts14; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
20 xx xx JSR @rts14
30 F9    BMI *-5
68      PLA</pre>||Clobbers Z&N, C, and V; requires @rts14; and writes in stack
|-
|<pre>48      PHA
08      PHP
38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
A5 00    LDA $00
38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
20 xx xx JSR @rts12
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
20 xx xx JSR @rts15
18      CLC
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>24 00    BIT $00
48      PHA
38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48      PHA
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
36 00    ROL $00,X
76 00    ROR $00,X
28      PLP
D0 F7    BNE *-7
68      PLA</pre>||Clobbers Z&N, and C; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
8C      TXA
48      PHA
A2 23    LDX #35
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>08      PHP
28      PLP
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
48      PHA
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>08      PHP
28      PLP
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|14 bytes
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
48      PHA
38      SEC
A9 23    LDA #35
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 199 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 E8    LDX #232 ;hides 'INX'
48      PHA
D0 FC    BNE *-2</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>A9      LDA #172
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 E8    LDX #232 ;hides 'INX'
A5 00    LDA $00
D0 FB    BNE *-3</pre>||Clobbers A, X, and Z&N
|-
|<pre>A2 E8    LDX #232 ;hides 'INX'
A4 00    LDY $00
D0 FB    BNE *-3</pre>||Clobbers X, Y, and Z&N
|-
|<pre>A2 E8    LDX #232 ;hides 'INX'
C5 00    CMP $00
D0 FB    BNE *-3</pre>||Clobbers X, Z&N, and C
|-
|<pre>A2 E8    LDX #232 ;hides 'INX'
24 00    BIT $00
D0 FB    BNE *-3</pre>||Clobbers X, Z&N, and V
|-
|<pre>A2 E8    LDX #232 ;hides 'INX'
85 xx    STA @zptemp
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N; and requires @zptemp
|-
|<pre>48      PHA
A0 27    LDY #39
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>A2 E8    LDX #232 ;hides 'INX'
04 00    NOP $00
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 27    LDX #39
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 27    LDY #39
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA  ... NOP      &times; 2
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #165
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #165
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>EA      NOP
08      PHP
A0 1B    LDY #27
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 1B    LDX #27
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48      PHA
20 xx xx JSR @rts15
18      CLC
D0 F8    BNE *-6</pre>||Clobbers A, S, Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
48  ... PHA      &times; 2
20 xx xx JSR @rts14
D0 F8    BNE *-6</pre>||Clobbers A, S, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>08      PHP
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
EA      NOP
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
EA      NOP
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #158
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
38      SEC
A9 1B    LDA #27
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 1B    LDA #27
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 24    LDX #36
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
B0 FA    BCS *-4
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
B0 FA    BCS *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 1A    LDA #26
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 200 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #173
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A2 27    LDX #39
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>68      PLA
A0 27    LDY #39
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 27    LDX #39
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 27    LDY #39
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA      NOP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #166
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #166
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 26    LDX #38
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 26    LDY #38
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #159
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
08      PHP
48      PHA
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Clobbers S; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
20 xx xx JSR @rts12
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, and C; requires @rts12; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 0A    LDA #$0A ;hides 'ASL A'
EA      NOP
20 xx xx JSR @rts15
18      CLC
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, and C; requires @rts15; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>04 00    NOP $00
08      PHP
48      PHA
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
24 00    BIT $00
48      PHA
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 201 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 28    LDY #40
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 28    LDX #40
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9      LDA #174
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #167
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #167
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A5 00    LDA $00
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>48      PHA
08      PHP
A0 26    LDY #38
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A2 26    LDX #38
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A6 00    LDX $00
A2 26    LDX #38
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 26    LDY #38
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #160
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>8C      TXA
48      PHA
A2 1B    LDX #27
EA      NOP
CA      DEX
D0 FA    BNE *-4
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
EA      NOP
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; requires support for unofficial opcodes; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
EA      NOP
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 1B    LDA #27
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 1B    LDA #27
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 1A    LDX #26
EA      NOP
CA      DEX
D0 FA    BNE *-4
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
B0 F8    BCS *-6
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
B0 F8    BCS *-6
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 202 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #175
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A2 E8    LDX #232 ;hides 'INX'
48      PHA
D0 FC    BNE *-2</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>48  ... PHA      &times; 2
A0 27    LDY #39
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>68      PLA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #168
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #168
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 3
A2 27    LDX #39
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A0 27    LDY #39
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>98      TYA
48      PHA
A0 26    LDY #38
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 26    LDY #38
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 26    LDX #38
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #161
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 203 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #176
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A0 28    LDY #40
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>EA      NOP
A2 28    LDX #40
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A2 27    LDX #39
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A0 27    LDY #39
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>38      SEC
A9 28    LDA #40
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #169
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #169
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #162
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
08      PHP
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
A5 00    LDA $00
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>24 00    BIT $00
48      PHA
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48  ... PHA      &times; 2
08      PHP
48      PHA
38      SEC
A9 EB    LDA #$EB ;hides 'SBC #$DA'
DA      NOP ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Clobbers S; requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>48      PHA
98      TYA
48      PHA
A0 17    LDY #23
A5 00    LDA $00
88      DEY
D0 F9    BNE *-5
68      PLA
A8      TAY
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
85 xx    STA @zptemp
B0 FA    BCS *-4
68      PLA
28      PLP</pre>||Requires @zptemp; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
48      PHA
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
04 00    NOP $00
B0 FA    BCS *-4
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|14 bytes
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
48      PHA
38      SEC
A9 24    LDA #36
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 204 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #177
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 1D    LDX #29
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A0 1D    LDY #29
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #170
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #170
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 1C    LDY #28
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 1C    LDX #28
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>EA  ... NOP      &times; 3
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
48      PHA
A9      LDA #163
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
98      TYA
48      PHA
A0 26    LDY #38
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY</pre>||Clobbers A, and Z&N; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 25    LDX #37
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 205 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #178
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 28    LDY #40
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 28    LDX #40
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 28    LDX #40
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 28    LDY #40
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #171
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #171
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 27    LDY #39
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A2 27    LDX #39
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #164
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
20 xx xx JSR @rts14
30 F9    BMI *-5
68      PLA
28      PLP</pre>||Requires @rts14; and writes in stack
|-
|<pre>48      PHA
08      PHP
48      PHA
38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
24 00    BIT $00
48      PHA
38      SEC
A9 25    LDA #37
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 206 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 29    LDY #41
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #179
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$9A'
9A      TXS ;first loop only
EA      NOP
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #172
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #172
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A2 E8    LDX #232 ;hides 'INX'
24 00    BIT $00
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 1D    LDA #29
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>48      PHA
08      PHP
A0 27    LDY #39
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA  ... NOP      &times; 2
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 27    LDY #39
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA  ... NOP      &times; 2
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #165
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
EA      NOP
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 1B    LDA #27
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 207 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #180
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>A0 E9    LDY #233 ;hides 'SBC #imm'
24 EA    BIT $EA ;hides 'NOP'
C8      INY
D0 FA    BNE *-4</pre>||Clobbers A, Y, Z&N, C, and V
|-
|<pre>A2 E9    LDX #233 ;hides 'SBC #imm'
24 EA    BIT $EA ;hides 'NOP'
E8      INX
D0 FA    BNE *-4</pre>||Clobbers A, X, Z&N, C, and V
|-
|<pre>48  ... PHA      &times; 2
A0 28    LDY #40
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A2 28    LDX #40
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
A9      LDA #173
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #173
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A6 00    LDX $00
A2 1D    LDX #29
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 1D    LDY #29
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
08      PHP
28      PLP
10 F8    BPL *-6</pre>||Clobbers A, Z&N, C, V, and D; and writes in stack
|-
|<pre>68      PLA
38      SEC
A9 28    LDA #40
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>EA      NOP
08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 27    LDX #39
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 27    LDY #39
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #166
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 208 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #181
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 29    LDY #41
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 28    LDY #40
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 28    LDX #40
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 29    LDA #41
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #174
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #174
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>48      PHA
08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #167
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
A5 00    LDA $00
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>24 00    BIT $00
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 1B    LDX #27
EA      NOP
CA      DEX
D0 FA    BNE *-4
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
EA      NOP
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Requires support for unofficial opcodes; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 1B    LDA #27
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 209 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #182
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 1A    LDX #26
48      PHA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>A0 1A    LDY #26
48      PHA
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 29    LDY #41
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #175
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #175
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48      PHA
18      CLC
A9 E9    LDA #$E9 ;hides 'SBC #$9A'
9A      TXS ;first loop only
EA      NOP
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>EA      NOP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
08      PHP
28      PLP
10 F8    BPL *-6</pre>||Clobbers A, Z&N, C, V, and D; and writes in stack
|-
|<pre>68      PLA
08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 27    LDY #39
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 27    LDX #39
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #168
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A2 27    LDX #39
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A0 27    LDY #39
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
98      TYA
48      PHA
A0 26    LDY #38
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 210 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #183
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 29    LDY #41
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 29    LDY #41
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #176
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #176
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 28    LDX #40
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 28    LDY #40
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 29    LDA #41
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 28    LDA #40
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 28    LDA #40
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #169
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48      PHA
08      PHP
48      PHA
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>08      PHP
24 00    BIT $00
48      PHA
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 211 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 2A    LDX #42
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 2A    LDY #42
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A9      LDA #184
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #177
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #177
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 1D    LDY #29
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 1D    LDX #29
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 1A    LDA #26
48      PHA
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>38      SEC
A9 1A    LDA #26
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
48      PHA
A9      LDA #170
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48  ... PHA      &times; 2
08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
48      PHA
98      TYA
48      PHA
A0 26    LDY #38
88      DEY
D0 FB    BNE *-3
68      PLA
A8      TAY
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
38      SEC
A9 26    LDA #38
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 212 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #185
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>48  ... PHA      &times; 2
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A0 29    LDY #41
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>08      PHP
A9      LDA #178
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #178
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA  ... NOP      &times; 3
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 3
A0 29    LDY #41
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>68      PLA
38      SEC
A9 29    LDA #41
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 28    LDX #40
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 28    LDX #40
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 28    LDY #40
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #171
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 213 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #186
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 2A    LDX #42
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 2A    LDY #42
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 29    LDY #41
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 2A    LDA #42
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #179
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #179
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #172
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
38      SEC
A9 1D    LDA #29
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 1D    LDA #29
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
A9 E9    LDA #$E9 ;hides 'SBC #$0A'
0A      ASL A ;first loop only
EA  ... NOP      &times; 2
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 214 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #187
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A2 2A    LDX #42
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A0 2A    LDY #42
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 2A    LDX #42
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 2A    LDY #42
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>08      PHP
A9      LDA #180
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #180
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A2 E9    LDX #233 ;hides 'SBC #imm'
24 EA    BIT $EA ;hides 'NOP'
E8      INX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, and X; and writes in stack
|-
|<pre>08      PHP
A0 E9    LDY #233 ;hides 'SBC #imm'
24 EA    BIT $EA ;hides 'NOP'
C8      INY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers A, and Y; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 28    LDY #40
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 28    LDX #40
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 29    LDA #41
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #173
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
08      PHP
28      PLP
10 F8    BPL *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>08      PHP
A6 00    LDX $00
A2 1D    LDX #29
EA      NOP
CA      DEX
D0 FA    BNE *-4
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 1D    LDY #29
EA      NOP
88      DEY
D0 FA    BNE *-4
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
08      PHP
28      PLP
10 F8    BPL *-6
68      PLA</pre>||Clobbers Z&N, C, V, and D; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 215 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #188
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A2 18    LDX #24 ;hides 'CLC'
EA      NOP
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 18    LDY #24 ;hides 'CLC'
EA      NOP
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #181
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #181
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 29    LDY #41
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA      NOP
38      SEC
A9 2A    LDA #42
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 29    LDA #41
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 29    LDA #41
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #174
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
24 00    BIT $00
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 216 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 2B    LDY #43
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 2B    LDX #43
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A9      LDA #189
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #182
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #182
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>48      PHA
08      PHP
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 29    LDY #41
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 2A    LDA #42
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A0 1A    LDY #26
C5 00    CMP $00
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 1A    LDX #26
C5 00    CMP $00
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>A5 00    LDA $00
38      SEC
A9 2A    LDA #42
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
48      PHA
A9      LDA #175
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>68      PLA
8C      TXA
48      PHA
A2 28    LDX #40
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
08      PHP
28      PLP
10 F8    BPL *-6
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
08      PHP
28      PLP
10 F8    BPL *-6
68      PLA</pre>||Clobbers Z&N, C, V, and D; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
38      SEC
A9 28    LDA #40
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 217 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A9      LDA #190
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|6 bytes
|-
|<pre>A0 1B    LDY #27
48      PHA
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>A2 1B    LDX #27
48      PHA
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>A0 18    LDY #24
EA  ... NOP      &times; 2
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 18    LDX #24
EA  ... NOP      &times; 2
CA      DEX
D0 F9    BNE *-5</pre>||Clobbers X, and Z&N
|-
|<pre>A0 12    LDY #18
08      PHP
28      PLP
88      DEY
D0 F9    BNE *-5</pre>||Clobbers Y, and Z&N; and writes in stack
|-
|<pre>A2 12    LDX #18
08      PHP
28      PLP
CA      DEX
D0 F9    BNE *-5</pre>||Clobbers X, and Z&N; and writes in stack
|-
|<pre>08      PHP
A9      LDA #183
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #183
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>68      PLA
38      SEC
A9 2A    LDA #42
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A0 29    LDY #41
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #176
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 29    LDA #41
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 29    LDA #41
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 28    LDA #40
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 218 cycles ===
{| class="wikitable testtable"
!colspan="2"|6 bytes
|-
|<pre>A2 1F    LDX #31
EA      NOP
CA      DEX
D0 FA    BNE *-4</pre>||Clobbers X, and Z&N
|-
|<pre>A0 1F    LDY #31
EA      NOP
88      DEY
D0 FA    BNE *-4</pre>||Clobbers Y, and Z&N
|-
|<pre>A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
EA      NOP
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 2A    LDY #42
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 2A    LDX #42
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A9      LDA #184
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #184
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #177
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>48      PHA
08      PHP
38      SEC
A9 29    LDA #41
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 29    LDA #41
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
38      SEC
A9 1A    LDA #26
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 1A    LDA #26
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>48  ... PHA      &times; 2
08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Clobbers S; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
48      PHA
18      CLC
A9 69    LDA #$69 ;hides 'ADC #$6A'
6A      ROR A ;first loop only
D0 FA    BNE *-4
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 219 cycles ===
{| class="wikitable testtable"
!colspan="2"|6 bytes
|-
|<pre>48      PHA
A2 2B    LDX #43
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48      PHA
A0 2B    LDY #43
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>EA      NOP
A9      LDA #190
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>A6 00    LDX $00
A2 2B    LDX #43
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A4 00    LDY $00
A0 2B    LDY #43
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
48      PHA
D0 F9    BNE *-5</pre>||Clobbers A, S, Z&N, C, and V; requires support for unofficial opcodes; and writes in stack
|-
|<pre>08      PHP
A9      LDA #185
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #185
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>38      SEC
A9 1B    LDA #27
48      PHA
E9 01    SBC #1
D0 F8    BNE *-6</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>38      SEC
A9 E9    LDA #$E9 ;hides 'SBC #$3A'
3A      NOP ;first loop only
85 xx    STA @zptemp
D0 F8    BNE *-6</pre>||Clobbers A, Z&N, C, and V; and requires @zptemp, and support for unofficial opcodes
|-
!colspan="2"|9 bytes
|-
|<pre>38      SEC
A9 1B    LDA #27
24 00    BIT $00
E9 01    SBC #1
D0 F7    BNE *-7</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A0 29    LDY #41
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #178
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
8C      TXA
48      PHA
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A0 29    LDY #41
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>EA  ... NOP      &times; 3
08      PHP
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 28    LDX #40
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
08      PHP
38      SEC
A9 29    LDA #41
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 28    LDA #40
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 220 cycles ===
{| class="wikitable testtable"
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A0 2B    LDY #43
88      DEY
D0 FB    BNE *-3</pre>||Clobbers A, Y, S, and Z&N
|-
|<pre>68      PLA
A2 2B    LDX #43
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers A, X, S, and Z&N
|-
|<pre>68      PLA
A9      LDA #189
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, S, Z&N, C, and V; and requires delay_a_25_clocks
|-
|<pre>48      PHA
A9      LDA #190
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, S, Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|7 bytes
|-
|<pre>EA  ... NOP      &times; 2
A2 2B    LDX #43
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA  ... NOP      &times; 2
A0 2B    LDY #43
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>18      CLC
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
EA      NOP
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #186
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #186
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>EA      NOP
08      PHP
A2 2A    LDX #42
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA      NOP
08      PHP
A0 2A    LDY #42
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
38      SEC
A9 2A    LDA #42
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>48      PHA
38      SEC
A9 2A    LDA #42
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #179
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 1D    LDA #29
EA      NOP
E9 01    SBC #1
D0 F8    BNE *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 221 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A0 2C    LDY #44
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
|<pre>A2 2C    LDX #44
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
!colspan="2"|6 bytes
|-
|<pre>68      PLA
A9      LDA #190
20 xx xx JSR delay_a_25_clocks</pre>||Clobbers A, S, Z&N, C, and V; and requires delay_a_25_clocks
|-
!colspan="2"|7 bytes
|-
|<pre>48      PHA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
EA      NOP
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, C, and V; and writes in stack
|-
|<pre>08      PHP
A9      LDA #187
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #187
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>A5 00    LDA $00
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
EA      NOP
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>48      PHA
08      PHP
A2 2A    LDX #42
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X, and S; and writes in stack
|-
|<pre>48      PHA
08      PHP
A0 2A    LDY #42
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y, and S; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A6 00    LDX $00
A2 2A    LDX #42
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>08      PHP
A4 00    LDY $00
A0 2A    LDY #42
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #180
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>68      PLA
8C      TXA
48      PHA
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, S, and Z&N; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>EA  ... NOP      &times; 2
8C      TXA
48      PHA
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
08      PHP
38      SEC
A9 29    LDA #41
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 3
38      SEC
A9 29    LDA #41
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
08      PHP
28      PLP
10 F8    BPL *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 222 cycles ===
{| class="wikitable testtable"
!colspan="2"|7 bytes
|-
|<pre>48  ... PHA      &times; 2
A2 2B    LDX #43
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, S, and Z&N; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
A0 2B    LDY #43
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, S, and Z&N; and writes in stack
|-
|<pre>68      PLA
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
EA      NOP
D0 FB    BNE *-3</pre>||Clobbers A, S, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #188
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #188
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|8 bytes
|-
|<pre>08      PHP
A0 18    LDY #24 ;hides 'CLC'
EA      NOP
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 18    LDX #24 ;hides 'CLC'
EA      NOP
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>EA  ... NOP      &times; 2
A9 69    LDA #$69 ;hides 'ADC #$38'
38      SEC ;first loop only
EA      NOP
D0 FB    BNE *-3</pre>||Clobbers A, Z&N, C, and V
|-
!colspan="2"|9 bytes
|-
|<pre>8C      TXA
48      PHA
A2 2A    LDX #42
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #181
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>EA      NOP
08      PHP
38      SEC
A9 2A    LDA #42
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>EA      NOP
48      PHA
38      SEC
A9 2A    LDA #42
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
48      PHA
38      SEC
A9 29    LDA #41
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 223 cycles ===
{| class="wikitable testtable"
!colspan="2"|6 bytes
|-
|<pre>EA      NOP
A2 2C    LDX #44
CA      DEX
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>EA      NOP
A0 2C    LDY #44
88      DEY
D0 FB    BNE *-3</pre>||Clobbers Y, and Z&N
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A0 2B    LDY #43
88      DEY
D0 FB    BNE *-3
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 2B    LDX #43
CA      DEX
D0 FB    BNE *-3
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 2C    LDA #44
E9 01    SBC #1
D0 F9    BNE *-5</pre>||Clobbers A, Z&N, C, and V
|-
|<pre>08      PHP
A9      LDA #189
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #189
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
48      PHA
A9      LDA #182
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>A9 0A    LDA #$0A ;hides 'ASL A'
08      PHP
28      PLP
20 xx xx JSR @rts14
18      CLC
D0 F7    BNE *-7</pre>||Clobbers A, Z&N, and C; requires @rts14; and writes in stack
|-
|<pre>48      PHA
08      PHP
38      SEC
A9 2A    LDA #42
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A, and S; and writes in stack
|-
|<pre>48  ... PHA      &times; 2
38      SEC
A9 2A    LDA #42
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers S, Z&N, C, and V; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>08      PHP
A5 00    LDA $00
38      SEC
A9 2A    LDA #42
E9 01    SBC #1
D0 F9    BNE *-5
28      PLP</pre>||Clobbers A; and writes in stack
|-
|<pre>24 00    BIT $00
48      PHA
38      SEC
A9 2A    LDA #42
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA</pre>||Clobbers Z&N, C, and V; and writes in stack
|-
!colspan="2"|13 bytes
|-
|<pre>EA      NOP
08      PHP
48      PHA
38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
08      PHP
28      PLP
10 F8    BPL *-6
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 
 
=== 224 cycles ===
{| class="wikitable testtable"
!colspan="2"|5 bytes
|-
|<pre>A2 E8    LDX #232 ;hides 'INX'
68      PLA
D0 FC    BNE *-2</pre>||Clobbers A, X, S, and Z&N
|-
!colspan="2"|6 bytes
|-
|<pre>A2 E8    LDX #232 ;hides 'INX'
EA  ... NOP      &times; 2
D0 FB    BNE *-3</pre>||Clobbers X, and Z&N
|-
|<pre>A0 98    LDY #152 ;hides 'TYA'
EA      NOP
88      DEY
30 FB    BMI *-3</pre>||Clobbers A, Y, and Z&N
|-
|<pre>A0 E4    LDY #228 ;hides 'CPX zp'
EA      NOP
C8      INY
D0 FB    BNE *-3</pre>||Clobbers Y, Z&N, C, and V
|-
|<pre>A0 64    LDY #100 ;hides 'NOP zp'
EA      NOP
C8      INY
10 FB    BPL *-3</pre>||Clobbers Y, and Z&N; and requires support for unofficial opcodes
|-
!colspan="2"|7 bytes
|-
|<pre>08      PHP
A9      LDA #190
20 xx xx JSR delay_a_25_clocks
28      PLP</pre>||Clobbers A; requires delay_a_25_clocks; and writes in stack
|-
|<pre>48      PHA
A9      LDA #190
20 xx xx JSR delay_a_25_clocks
68      PLA</pre>||Clobbers Z&N, C, and V; requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|9 bytes
|-
|<pre>08      PHP
A0 12    LDY #18
08      PHP
28      PLP
88      DEY
D0 F9    BNE *-5
28      PLP</pre>||Clobbers Y; and writes in stack
|-
|<pre>08      PHP
A2 12    LDX #18
08      PHP
28      PLP
CA      DEX
D0 F9    BNE *-5
28      PLP</pre>||Clobbers X; and writes in stack
|-
|<pre>38      SEC
A9 69    LDA #$69 ;hides 'ADC #$F8'
F8      SED ;first loop only
EA      NOP
48  ... PHA      &times; 2
10 F7    BPL *-7</pre>||Clobbers A, S, Z&N, C, V, and D; and writes in stack
|-
|<pre>08      PHP
48      PHA
A9      LDA #183
20 xx xx JSR delay_a_25_clocks
68      PLA
28      PLP</pre>||Requires delay_a_25_clocks; and writes in stack
|-
!colspan="2"|10 bytes
|-
|<pre>8C      TXA
48      PHA
EA      NOP
A2 2A    LDX #42
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX</pre>||Clobbers A, and Z&N; and writes in stack
|-
!colspan="2"|11 bytes
|-
|<pre>48      PHA
8C      TXA
48      PHA
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
68      PLA</pre>||Clobbers Z&N; and writes in stack
|-
|<pre>08      PHP
8C      TXA
48      PHA
A2 29    LDX #41
CA      DEX
D0 FB    BNE *-3
68      PLA
AA      TAX
28      PLP</pre>||Clobbers A; and writes in stack
|-
!colspan="2"|12 bytes
|-
|<pre>08      PHP
EA      NOP
48      PHA
38      SEC
A9 29    LDA #41
E9 01    SBC #1
D0 F9    BNE *-5
68      PLA
28      PLP</pre>||Writes in stack
|-
|}
 


== See also ==
== See also ==


* [[Cycle counting]]
* [[Delay code]] for functions that produce runtime-determined amount of delay
* [[Delay code]] for functions that produce runtime-determined amount of delay
* Bisqwit's 6502 delay_n macro set for ca65: http://bisqwit.iki.fi/src/6502-inline_delay.7z
* Bisqwit’s “vending machine” for producing a ca65-compatible delay_n macro for arbitrary number of cycles, with more fine-grained configurable constraints: http://bisqwit.iki.fi/utils/nesdelay.php The samples on this page are excerpts from files generated by this online tool.

Latest revision as of 18:24, 12 November 2020

Shortest possible CPU code that creates N cycles of delay, depending on constraints.

Code

All code samples are written for CA65.

Assumptions:

  • No page wrap occurs during any branch instruction. If a page wrap occurs, it adds +1 cycle for each loop, completely thwarting the accurate delay.
  • No interrupt / NMI occurs during the delay code.

It is permissible for DMA to steal cycles during the loops. If you are expecting that to happen, you have to manually adjust the delay cycle count (and it is in fact possible to do so) in order to get the correct delay.

Explanations on the requirements

  • @rts12 means you know a memory address that contains byte $60 (RTS).

cycle instruction that fits your constraints (such as LDA $00), followed by RTS.

Instructions, addressing modes, byte counts, cycle counts and notes

Addressing mode Instruction type Bytes Cycle count Example instruction Notes
Implied Inter-register 1 2 TAX NOP has no side effects. Flag-manipulations like CLC, and SECCLV are used when their effects are desired.
Implied Stack push 1 3 PHA PHP is only paired with PLP.
Implied Stack pop 1 4 PLA
Implied Return 1 6 RTS Used indirectly when paired with JSR. Similarly for RTI.
Immediate 2 2 CMP #$C5 Includes instructions like LDA, LDX and LDY. Other ALU instructions are used in more complex situations.
Relative Branch 2 2—4 BCC *+2 Branch takes 3 cycles when taken, 2 otherwise. A page crossing adds +1 cycle when branch is taken, but because of difficulties setting that up, we don't use it.
Zeropage Read, write 2 3 LDA $A5
Zeropage RMW 2 5 INC @zptemp Writing to zeropage is only permitted when @zptemp is available. Technically we could save @zptemp into register and restore at end, but it is bytewise inferior to other techniques.
Zeropage indexed Read, write 2 4 LDA $EA,X Inferior to 2 × NOP, but useful for hiding additional code to be executed in a loop.
Zeropage indexed RMW 2 6 INC @zptemp,X Only doable when X is known to be 0, or when entire zeropage can be clobbered.
Indexed indirect Read, write 2 6 STA (@ptrtemp,X) Only doable when X is known to be 0.
Indexed indirect RMW 2 8 SLO (@ptrtemp,X) The most cost-effective instruction. Only doable when X is known to be 0, lest we write to a random address. All instructions in this category are unofficial.
Indirect indexed Read 2 5—6 LDA (@ptrtemp),Y Never used by this code.
Indirect indexed Write 2 6 STA (@ptrtemp),Y Only doable when Y is known to be 0.
Indirect indexed RMW 2 8 SLO (@ptrtemp),Y All instructions in this category are unofficial.
Absolute Jump 3 3 JMP *+3
Absolute Read, write 3 4 LDA $2808 Inferior to 2 × NOP, but can be used carefully to hide additional code to be executed in a loop.
Absolute RMW 3 6 INC $4018 Inferior to 3 × NOP.
Absolute indexed Read 3 4—5 LDA $0200,X Inferior to shorter alternatives.
Absolute indexed Write 3 5 STA $0200,X Inferior to shorter alternatives.
Absolute indexed RMW 3 7 INC $4018,X Only doable when writing into the given address is harmless considering the possible values of X.
Absolute indirect Jump 3 5 JMP (@ptrtemp) Inferior to shorter alternatives.

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2 cycles

1 bytes
EA       NOP
No requirements
  • All instructions cost at least 2 cycles. There is no way to do 1 cycle of delay (though −1 cycles may sometimes appear in branch cost calculations).


3 cycles

2 bytes
C5 C5    CMP $C5
Clobbers Z&N, and C
24 24    BIT $24
Clobbers Z&N, and V
A5 A5    LDA $A5
Clobbers A, and Z&N
A6 A6    LDX $A6
Clobbers X, and Z&N
A4 A4    LDY $A4
Clobbers Y, and Z&N
3 bytes
4C xx xx JMP *+3
No requirements
  • Not relocatable means that the target address is hardcoded into the code. In ROM hacking, it sometimes makes sense to move code blobs around, and a hardcoded address makes it difficult to relocate the code. This restriction does not apply to branches, which use relative addressing. It is also assumed to not apply to JSR instructions, as chances are the JSR target is outside the code being relocated.


4 cycles

2 bytes
EA   ... NOP      × 2
No requirements
  • zp-indexed modes such as LDA $00,X also do 4 cycles, but having side effects, these two-byte instructions are inferior to a simple 2 × NOP.
  • There is also an unofficial opcode NOP $00,X (34 00), but there is no reason to use this instruction when the official equivalent has the same performance.


5 cycles

3 bytes
18       CLC
90 00    BCC *+2
Clobbers C
B8       CLV
50 00    BVC *+2
Clobbers V
EA       NOP
A5 A5    LDA $A5
Clobbers A, and Z&N
EA       NOP
A6 A6    LDX $A6
Clobbers X, and Z&N
EA       NOP
A4 A4    LDY $A4
Clobbers Y, and Z&N
4 bytes
EA       NOP
4C xx xx JMP *+3
No requirements
  • abs-indexed modes such as LDA $1234,X cause 4 or 5 cycles of delay, depending whether a page wrap occurred. Because you need extra setup code to make sure that a wrap does occur, you do not see this mode in these samples, outside situations where circumstances permit.


6 cycles

3 bytes
EA   ... NOP      × 3
No requirements
  • zp-indexed RMW instructions such as INC @zptemp,X do 6 cycles. Unless we know the value of X, it might write into any address between $00-$FF. This option is only useful if the entire range of $00-$FF is free for clobbering with random data, or if X has a known value.
  • ix instructions like LDA ($00,X) do 6 cycles, but the value of X decides where a pointer is read from, and said pointer can point anywhere. We only do that when the value of X is known.
  • iy instructions like LDA ($00),Y also do 5-6 cycles, but in addition to the note above, we cannot predict whether a wrap occurs or not. So we don't use this mode.
  • Absolute RMW instructions like INC $4018 do 6 cycles, but weighing 3 bytes with side-effects it would be inferior to 3 × NOP.


7 cycles

2 bytes
08       PHP
28       PLP
No requirements
  • PHP-PLP is very efficient for 7 cycles of delay, but it does modify stack contents. S register remains unchanged though.
  • PLA-PHA does not overwrite any bytes in stack. It just writes back the same byte. But it does clobber A and Z+N. It is not interrupt-unsafe either: If an interrupt happens, the stack byte does get temporarily clobbered, but the value is still in A when the interrupt exits, and gets written back in stack.
  • abs-indexed RMW instructions such as INC abs,X do 7 cycles. We only do this when either we know the value of X (for instance, INC $4018,X is safe when X is 0—7, or when the entire 256-byte page can be safely overwritten with random data.


8 cycles

4 bytes
EA   ... NOP      × 4
No requirements
  • Unofficial ix and iy RMW instructions such as SLO ($00,X) or SLO ($00),Y would do 8 cycles for 2 bytes of code. We only do that if we know X or Y to be zero, and we have a known pointer to safely rewritable data.


9 cycles

3 bytes
EA       NOP
08       PHP
28       PLP
No requirements
  • Jumping into the middle of another instruction and thereby reusing code is a very efficient way of reducing code size. Note that all code samples using branches on this page require that no page wrap occurs.


10 cycles

4 bytes
08       PHP
C5 C5    CMP $C5
28       PLP
No requirements
  • The ROL-ROR sequence preserves the original value of the memory address. Carry is also preserved.


11 cycles

4 bytes
EA   ... NOP      × 2
08       PHP
28       PLP
No requirements


12 cycles

3 bytes
20 xx xx JSR @rts12
Requires @rts12
4 bytes
36 36    ROL $36,X
76 36    ROR $36,X
Clobbers Z&N
5 bytes
08       PHP
18       CLC
90 00    BCC *+2
28       PLP
No requirements
  • JSR-RTS causes 12 cycles of delay. But it does write a function return address in the stack, which may be unwanted in some applications. S is not modified.
  • Again, ROL-ROR does not have side effects (as long as an interrupt does not happen in the middle), except for Z+N.


13 cycles

5 bytes
EA   ... NOP      × 3
08       PHP
28       PLP
No requirements


14 cycles

4 bytes
08       PHP       \ × 2
28       PLP       /
No requirements


15 cycles

5 bytes
08       PHP
BA       TSX
28       PLP
9A       TXS
28       PLP
Clobbers X
C5 C5    CMP $C5
20 xx xx JSR @rts12
Clobbers Z&N, and C; and requires @rts12
24 24    BIT $24
20 xx xx JSR @rts12
Clobbers Z&N, and V; and requires @rts12
A5 A5    LDA $A5
20 xx xx JSR @rts12
Clobbers A, and Z&N; and requires @rts12
A4 A4    LDY $A4
20 xx xx JSR @rts12
Clobbers Y, and Z&N; and requires @rts12
6 bytes
08       PHP
28       PLP
EA   ... NOP      × 4
No requirements


16 cycles

5 bytes
EA       NOP
08       PHP       \ × 2
28       PLP       /
No requirements


17 cycles

6 bytes
08       PHP
48       PHA
A5 A5    LDA $A5
68       PLA
28       PLP
No requirements


18 cycles

6 bytes
EA   ... NOP      × 2
08       PHP       \ × 2
28       PLP       /
No requirements


19 cycles

5 bytes
08       PHP
28       PLP
20 xx xx JSR @rts12
Requires @rts12
6 bytes
08       PHP
36 36    ROL $36,X
76 36    ROR $36,X
28       PLP
No requirements


20 cycles

5 bytes
A9 2A    LDA #$2A ;hides 'ROL A'
38       SEC
10 FC    BPL *-2
Clobbers A, Z&N, and C
7 bytes
EA   ... NOP      × 3
08       PHP       \ × 2
28       PLP       /
No requirements


21 cycles

5 bytes
18       CLC
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
Clobbers A, Z&N, and C
A2 04    LDX #4
CA       DEX
D0 FD    BNE *-1
Clobbers X, and Z&N
A0 04    LDY #4
88       DEY
D0 FD    BNE *-1
Clobbers Y, and Z&N
6 bytes
08       PHP       \ × 3
28       PLP       /
No requirements


22 cycles

6 bytes
18       CLC
A9 2A    LDA #$2A ;hides 'ROL A'
38       SEC
10 FC    BPL *-2
Clobbers A, Z&N, and C
A2 02    LDX #2
EA       NOP
CA       DEX
10 FC    BPL *-2
Clobbers X, and Z&N
A0 03    LDY #3
EA       NOP
88       DEY
D0 FC    BNE *-2
Clobbers Y, and Z&N
7 bytes
08       PHP
BA       TSX
08       PHP
28   ... PLP      × 2
9A       TXS
28       PLP
Clobbers X
08       PHP
C5 C5    CMP $C5
28       PLP
20 xx xx JSR @rts12
Requires @rts12
8 bytes
08       PHP       \ × 2
28       PLP       /
EA   ... NOP      × 4
No requirements


23 cycles

6 bytes
18   ... CLC      × 2
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
Clobbers A, Z&N, and C
EA       NOP
A2 04    LDX #4
CA       DEX
D0 FD    BNE *-1
Clobbers X, and Z&N
EA       NOP
A0 04    LDY #4
88       DEY
D0 FD    BNE *-1
Clobbers Y, and Z&N
7 bytes
EA       NOP
08       PHP       \ × 3
28       PLP       /
No requirements


24 cycles

4 bytes
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
Clobbers A, Z&N, and C
6 bytes
20 xx xx JSR @rts12× 2
Requires @rts12
7 bytes
A6 A6    LDX $A6
A2 04    LDX #4
CA       DEX
D0 FD    BNE *-1
Clobbers X, and Z&N
A4 A4    LDY $A4
A0 04    LDY #4
88       DEY
D0 FD    BNE *-1
Clobbers Y, and Z&N
8 bytes
08       PHP
C5 C5    CMP $C5
28       PLP       \ × 2
08       PHP       /
28       PLP
No requirements


25 cycles

7 bytes
98       TYA
A0 04    LDY #4
88       DEY
D0 FD    BNE *-1
A8       TAY
Clobbers A, and Z&N
EA   ... NOP      × 2
A2 04    LDX #4
CA       DEX
D0 FD    BNE *-1
Clobbers X, and Z&N
EA   ... NOP      × 2
A0 04    LDY #4
88       DEY
D0 FD    BNE *-1
Clobbers Y, and Z&N
8 bytes
EA   ... NOP      × 2
08       PHP       \ × 3
28       PLP       /
No requirements


26 cycles

5 bytes
18       CLC
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
Clobbers A, Z&N, and C
A2 04    LDX #4
CA       DEX
10 FD    BPL *-1
Clobbers X, and Z&N
A0 05    LDY #5
88       DEY
D0 FD    BNE *-1
Clobbers Y, and Z&N
7 bytes
EA       NOP
20 xx xx JSR @rts12× 2
Requires @rts12
8 bytes
08       PHP
48       PHA
36 36    ROL $36,X
76 36    ROR $36,X
68       PLA
28       PLP
No requirements


27 cycles

6 bytes
A5 A5    LDA $A5
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
Clobbers A, Z&N, and C
7 bytes
48       PHA
A9 2A    LDA #$2A ;hides 'ROL A'
38       SEC
10 FC    BPL *-2
68       PLA
Clobbers Z&N, and C
08       PHP
A9 2A    LDA #$2A ;hides 'ROL A'
38       SEC
10 FC    BPL *-2
28       PLP
Clobbers A
24 2C    BIT <$2C ;hides 'BIT $FDA2'
A2 FD    LDX #253
E8       INX
D0 FA    BNE *-4
Clobbers X, Z&N, and V
24 2C    BIT <$2C ;hides 'BIT $FDA0'
A0 FD    LDY #253
C8       INY
D0 FA    BNE *-4
Clobbers Y, Z&N, and V
A4 AC    LDY <$AC ;hides 'LDY $82A2'
A2 82    LDX #130
CA       DEX
30 FA    BMI *-4
Clobbers X, Y, and Z&N
8 bytes
EA   ... NOP      × 3
A2 04    LDX #4
CA       DEX
D0 FD    BNE *-1
Clobbers X, and Z&N
EA   ... NOP      × 3
A0 04    LDY #4
88       DEY
D0 FD    BNE *-1
Clobbers Y, and Z&N
24 24    BIT $24
20 xx xx JSR @rts12× 2
Clobbers Z&N, and V; and requires @rts12
20 xx xx JSR @rts12
08       PHP
BA       TSX
28       PLP
9A       TXS
28       PLP
Clobbers X; and requires @rts12
9 bytes
EA   ... NOP      × 3
08       PHP       \ × 3
28       PLP       /
No requirements


28 cycles

6 bytes
38   ... SEC      × 2
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
Clobbers A, Z&N, and C
EA       NOP
A2 04    LDX #4
CA       DEX
10 FD    BPL *-1
Clobbers X, and Z&N
EA       NOP
A0 05    LDY #5
88       DEY
D0 FD    BNE *-1
Clobbers Y, and Z&N
7 bytes
48       PHA
18       CLC
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
68       PLA
Clobbers Z&N, and C
08       PHP
18       CLC
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
28       PLP
Clobbers A
08       PHP
A2 04    LDX #4
CA       DEX
D0 FD    BNE *-1
28       PLP
Clobbers X
08       PHP
A0 04    LDY #4
88       DEY
D0 FD    BNE *-1
28       PLP
Clobbers Y
8 bytes
08       PHP       \ × 4
28       PLP       /
No requirements


29 cycles

6 bytes
18       CLC
A9 2A    LDA #$2A ;hides 'ROL A'
EA       NOP
90 FC    BCC *-2
Clobbers A, Z&N, and C
A2 04    LDX #4
EA       NOP
CA       DEX
D0 FC    BNE *-2
Clobbers X, and Z&N
A0 04    LDY #4
EA       NOP
88       DEY
D0 FC    BNE *-2
Clobbers Y, and Z&N
8 bytes
48       PHA
18       CLC
A9 2A    LDA #$2A ;hides 'ROL A'
38       SEC
10 FC    BPL *-2
68       PLA
Clobbers Z&N, and C
08       PHP
18       CLC
A9 2A    LDA #$2A ;hides 'ROL A'
38       SEC
10 FC    BPL *-2
28       PLP
Clobbers A
08       PHP
A2 02    LDX #2
EA       NOP
CA       DEX
10 FC    BPL *-2
28       PLP
Clobbers X
08       PHP
A0 03    LDY #3
EA       NOP
88       DEY
D0 FC    BNE *-2
28       PLP
Clobbers Y
9 bytes
08       PHP
28       PLP
08       PHP
C5 C5    CMP $C5
28       PLP
20 xx xx JSR @rts12
Requires @rts12
10 bytes
08       PHP
C5 C5    CMP $C5
28       PLP
08       PHP
36 36    ROL $36,X
76 36    ROR $36,X
28       PLP
No requirements


30 cycles

7 bytes
98       TYA
A0 05    LDY #5
88       DEY
D0 FD    BNE *-1
A8       TAY
Clobbers A, and Z&N
EA   ... NOP      × 2
A2 04    LDX #4
CA       DEX
10 FD    BPL *-1
Clobbers X, and Z&N
EA   ... NOP      × 2
A0 05    LDY #5
88       DEY
D0 FD    BNE *-1
Clobbers Y, and Z&N
8 bytes
48       PHA
18   ... CLC      × 2
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
68       PLA
Clobbers Z&N, and C
08       PHP
18   ... CLC      × 2
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
28       PLP
Clobbers A
EA       NOP
08       PHP
A2 04    LDX #4
CA       DEX
D0 FD    BNE *-1
28       PLP
Clobbers X
EA       NOP
08       PHP
A0 04    LDY #4
88       DEY
D0 FD    BNE *-1
28       PLP
Clobbers Y
9 bytes
08       PHP
48       PHA
18       CLC
A9 6A    LDA #$6A ;hides 'ROR A'
90 FD    BCC *-1
68       PLA
28       PLP
No requirements


31 cycles

5 bytes
18       CLC
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1
Clobbers A, Z&N, and C
A2 05    LDX #5
CA       DEX
10 FD    BPL *-1
Clobbers X, and Z&N
A0 06    LDY #6
88       DEY
D0 FD    BNE *-1
Clobbers Y, and Z&N
6 bytes
48       PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68       PLA
Clobbers Z&N, and C
08       PHP
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28       PLP
Clobbers A
8 bytes
08       PHP
28       PLP
20 xx xx JSR @rts12× 2
Requires @rts12
9 bytes
08       PHP
A6 A6    LDX $A6
A2 04    LDX #4
CA       DEX
D0 FD    BNE *-1
28       PLP
Clobbers X
08       PHP
A4 A4    LDY $A4
A0 04    LDY #4
88       DEY
D0 FD    BNE *-1
28       PLP
Clobbers Y
10 bytes
08       PHP
36 36    ROL $36,X \ × 2
76 36    ROR $36,X /
28       PLP
No requirements


32 cycles

6 bytes
A2 05    LDX #5 ;hides 'ORA zp'
CA       DEX ;first loop only
CA       DEX
D0 FB    BNE *-3
Clobbers A, X, and Z&N
A0 05    LDY #5 ;hides 'ORA zp'
88       DEY ;first loop only
88       DEY
D0 FB    BNE *-3
Clobbers A, Y, and Z&N
7 bytes
A9 2A    LDA #$2A ;hides 'ROL A'
EA   ... NOP      × 3
10 FA    BPL *-4
Clobbers A, Z&N, and C
8 bytes
EA       NOP
98       TYA
A0 05    LDY #5
88       DEY
D0 FD    BNE *-1
A8       TAY
Clobbers A, and Z&N
A6 A6    LDX $A6
A2 04    LDX #4
EA       NOP
CA       DEX
D0 FC    BNE *-2
Clobbers X, and Z&N
A4 A4    LDY $A4
A0 04    LDY #4
EA       NOP
88       DEY
D0 FC    BNE *-2
Clobbers Y, and Z&N
9 bytes
48       PHA
98       TYA
A0 04    LDY #4
88       DEY
D0 FD    BNE *-1
A8       TAY
68       PLA
Clobbers Z&N
08       PHP
98       TYA
A0 04    LDY #4
88       DEY
D0 FD    BNE *-1
A8       TAY
28       PLP
Clobbers A
EA   ... NOP      × 2
08       PHP
A2 04    LDX #4
CA       DEX
D0 FD    BNE *-1
28       PLP
Clobbers X
EA   ... NOP      × 2
08       PHP
A0 04    LDY #4
88       DEY
D0 FD    BNE *-1
28       PLP
Clobbers Y
10 bytes
08       PHP
48       PHA
18   ... CLC      × 2
A9 6A    LDA #$6A ;hides 'ROR A'
90 FD    BCC *-1
68       PLA
28       PLP
No requirements


33 cycles

6 bytes
18   ... CLC      × 2
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1
Clobbers A, Z&N, and C
EA       NOP
A2 05    LDX #5
CA       DEX
10 FD    BPL *-1
Clobbers X, and Z&N
EA       NOP
A0 06    LDY #6
88       DEY
D0 FD    BNE *-1
Clobbers Y, and Z&N
7 bytes
48       PHA
18       CLC
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68       PLA
Clobbers Z&N, and C
08       PHP
18       CLC
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28       PLP
Clobbers A
08       PHP
A2 04    LDX #4
CA       DEX
10 FD    BPL *-1
28       PLP
Clobbers X
08       PHP
A0 05    LDY #5
88       DEY
D0 FD    BNE *-1
28       PLP
Clobbers Y
9 bytes
EA       NOP
08       PHP
28       PLP
20 xx xx JSR @rts12× 2
Requires @rts12
10 bytes
08       PHP       \ × 2
28       PLP       /
08       PHP
36 36    ROL $36,X
76 36    ROR $36,X
28       PLP
No requirements


34 cycles

5 bytes
A9 0A    LDA #$0A ;hides 'ASL A'
18       CLC
10 FC    BPL *-2
Clobbers A, Z&N, and C
A0 88    LDY #136 ;hides 'DEY'
88       DEY
30 FC    BMI *-2
Clobbers Y, and Z&N
7 bytes
A6 A6    LDX $A6
A2 05    LDX #5
CA       DEX
10 FD    BPL *-1
Clobbers X, and Z&N
8 bytes
C5 C5    CMP $C5
48       PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68       PLA
Clobbers Z&N, and C
08       PHP
A5 A5    LDA $A5
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28       PLP
Clobbers A
9 bytes
08       PHP
48       PHA
A9 2A    LDA #$2A ;hides 'ROL A'
38       SEC
10 FC    BPL *-2
68       PLA
28       PLP
No requirements


35 cycles

6 bytes
A9 2A    LDA #$2A ;hides 'ROL A'
08       PHP
28       PLP
10 FB    BPL *-3
Clobbers A, Z&N, and C
A2 F8    LDX #248 ;hides 'SED'
E8   ... INX      × 2
D0 FB    BNE *-3
Clobbers X, Z&N, and D
A0 88    LDY #136 ;hides 'DEY'
88   ... DEY      × 2
30 FB    BMI *-3
Clobbers Y, and Z&N
7 bytes
98       TYA
A0 06    LDY #6
88       DEY
D0 FD    BNE *-1
A8       TAY
Clobbers A, and Z&N
EA   ... NOP      × 2
A2 05    LDX #5
CA       DEX
10 FD    BPL *-1
Clobbers X, and Z&N
8 bytes
48       PHA
38   ... SEC      × 2
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68       PLA
Clobbers Z&N, and C
08       PHP
38   ... SEC      × 2
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
28       PLP
Clobbers A
EA       NOP
08       PHP
A2 04    LDX #4
CA       DEX
10 FD    BPL *-1
28       PLP
Clobbers X
EA       NOP
08       PHP
A0 05    LDY #5
88       DEY
D0 FD    BNE *-1
28       PLP
Clobbers Y
9 bytes
08       PHP
48       PHA
18       CLC
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
68       PLA
28       PLP
No requirements


36 cycles

5 bytes
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A       ROL A ;first loop only
B0 FC    BCS *-2
Clobbers A, Z&N, C, and V
A2 07    LDX #7
CA       DEX
D0 FD    BNE *-1
Clobbers X, and Z&N
A0 06    LDY #6
88       DEY
10 FD    BPL *-1
Clobbers Y, and Z&N
6 bytes
38       SEC
A9 0A    LDA #$0A ;hides 'ASL A'
38       SEC
10 FC    BPL *-2
Clobbers A, Z&N, and C
8 bytes
48       PHA
18       CLC
A9 2A    LDA #$2A ;hides 'ROL A'
EA       NOP
90 FC    BCC *-2
68       PLA
Clobbers Z&N, and C
08       PHP
18       CLC
A9 2A    LDA #$2A ;hides 'ROL A'
EA       NOP
90 FC    BCC *-2
28       PLP
Clobbers A
08       PHP
A2 04    LDX #4
EA       NOP
CA       DEX
D0 FC    BNE *-2
28       PLP
Clobbers X
08       PHP
A0 04    LDY #4
EA       NOP
88       DEY
D0 FC    BNE *-2
28       PLP
Clobbers Y
9 bytes
20 xx xx JSR @rts12× 3
Requires @rts12
10 bytes
08       PHP
48       PHA
18       CLC
A9 2A    LDA #$2A ;hides 'ROL A'
38       SEC
10 FC    BPL *-2
68       PLA
28       PLP
No requirements


37 cycles

7 bytes
A5 A5    LDA $A5
A9 0A    LDA #$0A ;hides 'ASL A'
18       CLC
10 FC    BPL *-2
Clobbers A, Z&N, and C
A2 04    LDX #4
EA   ... NOP      × 2
CA       DEX
D0 FB    BNE *-3
Clobbers X, and Z&N
A0 04    LDY #4
EA   ... NOP      × 2
88       DEY
D0 FB    BNE *-3
Clobbers Y, and Z&N
8 bytes
EA       NOP
98       TYA
A0 06    LDY #6
88       DEY
D0 FD    BNE *-1
A8       TAY
Clobbers A, and Z&N
9 bytes
48       PHA
98       TYA
A0 05    LDY #5
88       DEY
D0 FD    BNE *-1
A8       TAY
68       PLA
Clobbers Z&N
08       PHP
98       TYA
A0 05    LDY #5
88       DEY
D0 FD    BNE *-1
A8       TAY
28       PLP
Clobbers A
EA   ... NOP      × 2
08       PHP
A2 04    LDX #4
CA       DEX
10 FD    BPL *-1
28       PLP
Clobbers X
EA   ... NOP      × 2
08       PHP
A0 05    LDY #5
88       DEY
D0 FD    BNE *-1
28       PLP
Clobbers Y
10 bytes
08       PHP
48       PHA
18   ... CLC      × 2
A9 2A    LDA #$2A ;hides 'ROL A'
90 FD    BCC *-1
68       PLA
28       PLP
No requirements


38 cycles

6 bytes
38       SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA       NOP ;first loop only
B0 FC    BCS *-2
Clobbers A, Z&N, C, and V
EA       NOP
A2 07    LDX #7
CA       DEX
D0 FD    BNE *-1
Clobbers X, and Z&N
EA       NOP
A0 06    LDY #6
88       DEY
10 FD    BPL *-1
Clobbers Y, and Z&N
7 bytes
48       PHA
18       CLC
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1
68       PLA
Clobbers Z&N, and C
08       PHP
18       CLC
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1
28       PLP
Clobbers A
08       PHP
A2 05    LDX #5
CA       DEX
10 FD    BPL *-1
28       PLP
Clobbers X
08       PHP
A0 06    LDY #6
88       DEY
D0 FD    BNE *-1
28       PLP
Clobbers Y
8 bytes
08       PHP
48       PHA
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68       PLA
28       PLP
No requirements


39 cycles

4 bytes
A9 4A    LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
Clobbers A, Z&N, and C
7 bytes
A6 A6    LDX $A6
A2 07    LDX #7
CA       DEX
D0 FD    BNE *-1
Clobbers X, and Z&N
A4 A4    LDY $A4
A0 06    LDY #6
88       DEY
10 FD    BPL *-1
Clobbers Y, and Z&N
8 bytes
98       TYA
A0 88    LDY #136 ;hides 'DEY'
88   ... DEY      × 2
30 FB    BMI *-3
A8       TAY
Clobbers A, and Z&N
08       PHP
A2 05    LDX #5 ;hides 'ORA zp'
CA       DEX ;first loop only
CA       DEX
D0 FB    BNE *-3
28       PLP
Clobbers A, and X
08       PHP
A0 05    LDY #5 ;hides 'ORA zp'
88       DEY ;first loop only
88       DEY
D0 FB    BNE *-3
28       PLP
Clobbers A, and Y
9 bytes
48       PHA
A9 2A    LDA #$2A ;hides 'ROL A'
EA   ... NOP      × 3
10 FA    BPL *-4
68       PLA
Clobbers Z&N, and C
08       PHP
A9 2A    LDA #$2A ;hides 'ROL A'
EA   ... NOP      × 3
10 FA    BPL *-4
28       PLP
Clobbers A
10 bytes
EA       NOP
48       PHA
98       TYA
A0 05    LDY #5
88       DEY
D0 FD    BNE *-1
A8       TAY
68       PLA
Clobbers Z&N
08       PHP
A6 A6    LDX $A6
A2 04    LDX #4
EA       NOP
CA       DEX
D0 FC    BNE *-2
28       PLP
Clobbers X
08       PHP
A4 A4    LDY $A4
A0 04    LDY #4
EA       NOP
88       DEY
D0 FC    BNE *-2
28       PLP
Clobbers Y
11 bytes
08       PHP
48       PHA
98       TYA
A0 04    LDY #4
88       DEY
D0 FD    BNE *-1
A8       TAY
68       PLA
28       PLP
No requirements


40 cycles

6 bytes
A2 05    LDX #5 ;hides 'ORA zp'
EA       NOP
CA       DEX
D0 FB    BNE *-3
Clobbers A, X, and Z&N
A0 05    LDY #5 ;hides 'ORA zp'
EA       NOP
88       DEY
D0 FB    BNE *-3
Clobbers A, Y, and Z&N
7 bytes
98       TYA
A0 06    LDY #6
88       DEY
10 FD    BPL *-1
A8       TAY
Clobbers A, and Z&N
EA   ... NOP      × 2
A2 07    LDX #7
CA       DEX
D0 FD    BNE *-1
Clobbers X, and Z&N
EA   ... NOP      × 2
A0 06    LDY #6
88       DEY
10 FD    BPL *-1
Clobbers Y, and Z&N
8 bytes
48       PHA
18   ... CLC      × 2
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1
68       PLA
Clobbers Z&N, and C
08       PHP
18   ... CLC      × 2
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1
28       PLP
Clobbers A
EA       NOP
08       PHP
A2 05    LDX #5
CA       DEX
10 FD    BPL *-1
28       PLP
Clobbers X
EA       NOP
08       PHP
A0 06    LDY #6
88       DEY
D0 FD    BNE *-1
28       PLP
Clobbers Y
9 bytes
08       PHP
48       PHA
18       CLC
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68       PLA
28       PLP
No requirements


41 cycles

5 bytes
38       SEC
A9 4A    LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
Clobbers A, Z&N, and C
A2 08    LDX #8
CA       DEX
D0 FD    BNE *-1
Clobbers X, and Z&N
A0 08    LDY #8
88       DEY
D0 FD    BNE *-1
Clobbers Y, and Z&N
7 bytes
48       PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18       CLC
10 FC    BPL *-2
68       PLA
Clobbers Z&N, and C
08       PHP
A9 0A    LDA #$0A ;hides 'ASL A'
18       CLC
10 FC    BPL *-2
28       PLP
Clobbers A
08       PHP
A0 88    LDY #136 ;hides 'DEY'
88       DEY
30 FC    BMI *-2
28       PLP
Clobbers Y
9 bytes
08       PHP
A6 A6    LDX $A6
A2 05    LDX #5
CA       DEX
10 FD    BPL *-1
28       PLP
Clobbers X
10 bytes
08       PHP
48       PHA
A5 A5    LDA $A5
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68       PLA
28       PLP
No requirements


42 cycles

6 bytes
A5 A5    LDA $A5
A9 4A    LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
Clobbers A, Z&N, and C
7 bytes
EA       NOP
A2 05    LDX #5 ;hides 'ORA zp'
EA       NOP
CA       DEX
D0 FB    BNE *-3
Clobbers A, X, and Z&N
EA       NOP
A0 05    LDY #5 ;hides 'ORA zp'
EA       NOP
88       DEY
D0 FB    BNE *-3
Clobbers A, Y, and Z&N
8 bytes
48       PHA
A9 2A    LDA #$2A ;hides 'ROL A'
08       PHP
28       PLP
10 FB    BPL *-3
68       PLA
Clobbers Z&N, and C
08       PHP
A9 2A    LDA #$2A ;hides 'ROL A'
08       PHP
28       PLP
10 FB    BPL *-3
28       PLP
Clobbers A
08       PHP
A2 F8    LDX #248 ;hides 'SED'
E8   ... INX      × 2
D0 FB    BNE *-3
28       PLP
Clobbers X
08       PHP
A0 88    LDY #136 ;hides 'DEY'
88   ... DEY      × 2
30 FB    BMI *-3
28       PLP
Clobbers Y
9 bytes
48       PHA
98       TYA
A0 06    LDY #6
88       DEY
D0 FD    BNE *-1
A8       TAY
68       PLA
Clobbers Z&N
10 bytes
08       PHP
48       PHA
38   ... SEC      × 2
A9 0A    LDA #$0A ;hides 'ASL A'
10 FD    BPL *-1
68       PLA
28       PLP
No requirements


43 cycles

6 bytes
38   ... SEC      × 2
A9 4A    LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
Clobbers A, Z&N, and C
A2 05    LDX #5
EA       NOP
CA       DEX
10 FC    BPL *-2
Clobbers X, and Z&N
A0 06    LDY #6
EA       NOP
88       DEY
D0 FC    BNE *-2
Clobbers Y, and Z&N
7 bytes
48       PHA
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A       ROL A ;first loop only
B0 FC    BCS *-2
68       PLA
Clobbers Z&N, C, and V
08       PHP
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A       ROL A ;first loop only
B0 FC    BCS *-2
28       PLP
Clobbers A
08       PHP
A2 07    LDX #7
CA       DEX
D0 FD    BNE *-1
28       PLP
Clobbers X
08       PHP
A0 06    LDY #6
88       DEY
10 FD    BPL *-1
28       PLP
Clobbers Y
8 bytes
48       PHA
38       SEC
A9 0A    LDA #$0A ;hides 'ASL A'
38       SEC
10 FC    BPL *-2
68       PLA
Clobbers Z&N, and C
10 bytes
08       PHP
48       PHA
18       CLC
A9 2A    LDA #$2A ;hides 'ROL A'
EA       NOP
90 FC    BCC *-2
68       PLA
28       PLP
No requirements


44 cycles

6 bytes
A9 0A    LDA #$0A ;hides 'ASL A'
EA   ... NOP      × 2
10 FB    BPL *-3
Clobbers A, Z&N, and C
A0 88    LDY #136 ;hides 'DEY'
EA       NOP
88       DEY
30 FB    BMI *-3
Clobbers Y, and Z&N
7 bytes
A6 A6    LDX $A6
A2 08    LDX #8
CA       DEX
D0 FD    BNE *-1
Clobbers X, and Z&N
9 bytes
C5 C5    CMP $C5
48       PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18       CLC
10 FC    BPL *-2
68       PLA
Clobbers Z&N, and C
08       PHP
A5 A5    LDA $A5
A9 0A    LDA #$0A ;hides 'ASL A'
18       CLC
10 FC    BPL *-2
28       PLP
Clobbers A
08       PHP
A2 04    LDX #4
EA   ... NOP      × 2
CA       DEX
D0 FB    BNE *-3
28       PLP
Clobbers X
08       PHP
A0 04    LDY #4
EA   ... NOP      × 2
88       DEY
D0 FB    BNE *-3
28       PLP
Clobbers Y
10 bytes
EA       NOP
48       PHA
98       TYA
A0 06    LDY #6
88       DEY
D0 FD    BNE *-1
A8       TAY
68       PLA
Clobbers Z&N
11 bytes
08       PHP
48       PHA
98       TYA
A0 05    LDY #5
88       DEY
D0 FD    BNE *-1
A8       TAY
68       PLA
28       PLP
No requirements


45 cycles

7 bytes
98       TYA
A0 08    LDY #8
88       DEY
D0 FD    BNE *-1
A8       TAY
Clobbers A, and Z&N
EA   ... NOP      × 2
A2 08    LDX #8
CA       DEX
D0 FD    BNE *-1
Clobbers X, and Z&N
EA   ... NOP      × 2
A0 08    LDY #8
88       DEY
D0 FD    BNE *-1
Clobbers Y, and Z&N
8 bytes
48       PHA
38       SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA       NOP ;first loop only
B0 FC    BCS *-2
68       PLA
Clobbers Z&N, C, and V
08       PHP
38       SEC
A9 69    LDA #$69 ;hides 'ADC #$EA'
EA       NOP ;first loop only
B0 FC    BCS *-2
28       PLP
Clobbers A
EA       NOP
08       PHP
A2 07    LDX #7
CA       DEX
D0 FD    BNE *-1
28       PLP
Clobbers X
EA       NOP
08       PHP
A0 06    LDY #6
88       DEY
10 FD    BPL *-1
28       PLP
Clobbers Y
9 bytes
08       PHP
48       PHA
18       CLC
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1
68       PLA
28       PLP
No requirements


46 cycles

5 bytes
A2 08    LDX #8
CA       DEX
10 FD    BPL *-1
Clobbers X, and Z&N
A0 09    LDY #9
88       DEY
D0 FD    BNE *-1
Clobbers Y, and Z&N
6 bytes
48       PHA
A9 4A    LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
68       PLA
Clobbers Z&N, and C
08       PHP
A9 4A    LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
28       PLP
Clobbers A
9 bytes
08       PHP
A6 A6    LDX $A6
A2 07    LDX #7
CA       DEX
D0 FD    BNE *-1
28       PLP
Clobbers X
08       PHP
A4 A4    LDY $A4
A0 06    LDY #6
88       DEY
10 FD    BPL *-1
28       PLP
Clobbers Y
10 bytes
48       PHA
98       TYA
A0 88    LDY #136 ;hides 'DEY'
88   ... DEY      × 2
30 FB    BMI *-3
A8       TAY
68       PLA
Clobbers Z&N
11 bytes
08       PHP
48       PHA
A9 2A    LDA #$2A ;hides 'ROL A'
EA   ... NOP      × 3
10 FA    BPL *-4
68       PLA
28       PLP
No requirements


47 cycles

8 bytes
98       TYA
A0 06    LDY #6
EA       NOP
88       DEY
D0 FC    BNE *-2
A8       TAY
Clobbers A, and Z&N
EA   ... NOP      × 3
A2 08    LDX #8
CA       DEX
D0 FD    BNE *-1
Clobbers X, and Z&N
08       PHP
A2 05    LDX #5 ;hides 'ORA zp'
EA       NOP
CA       DEX
D0 FB    BNE *-3
28       PLP
Clobbers A, and X
EA   ... NOP      × 3
A0 08    LDY #8
88       DEY
D0 FD    BNE *-1
Clobbers Y, and Z&N
08       PHP
A0 05    LDY #5 ;hides 'ORA zp'
EA       NOP
88       DEY
D0 FB    BNE *-3
28       PLP
Clobbers A, and Y
9 bytes
48       PHA
98       TYA
A0 06    LDY #6
88       DEY
10 FD    BPL *-1
A8       TAY
68       PLA
Clobbers Z&N
08       PHP
98       TYA
A0 06    LDY #6
88       DEY
10 FD    BPL *-1
A8       TAY
28       PLP
Clobbers A
EA   ... NOP      × 2
08       PHP
A2 07    LDX #7
CA       DEX
D0 FD    BNE *-1
28       PLP
Clobbers X
EA   ... NOP      × 2
08       PHP
A0 06    LDY #6
88       DEY
10 FD    BPL *-1
28       PLP
Clobbers Y
10 bytes
08       PHP
48       PHA
18   ... CLC      × 2
A9 0A    LDA #$0A ;hides 'ASL A'
90 FD    BCC *-1
68       PLA
28       PLP
No requirements


48 cycles

6 bytes
EA       NOP
A2 08    LDX #8
CA       DEX
10 FD    BPL *-1
Clobbers X, and Z&N
EA       NOP
A0 09    LDY #9
88       DEY
D0 FD    BNE *-1
Clobbers Y, and Z&N
7 bytes
48       PHA
38       SEC
A9 4A    LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
68       PLA
Clobbers Z&N, and C
08       PHP
38       SEC
A9 4A    LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
28       PLP
Clobbers A
08       PHP
A2 08    LDX #8
CA       DEX
D0 FD    BNE *-1
28       PLP
Clobbers X
08       PHP
A0 08    LDY #8
88       DEY
D0 FD    BNE *-1
28       PLP
Clobbers Y
9 bytes
08       PHP
48       PHA
A9 0A    LDA #$0A ;hides 'ASL A'
18       CLC
10 FC    BPL *-2
68       PLA
28       PLP
No requirements


49 cycles

4 bytes
A0 88    LDY #136 ;hides 'DEY'
30 FD    BMI *-1
Clobbers Y, and Z&N
7 bytes
18       CLC
A9 2A    LDA #$2A ;hides 'ROL A'
08       PHP
28       PLP
90 FB    BCC *-3
Clobbers A, Z&N, and C
A6 A6    LDX $A6
A2 08    LDX #8
CA       DEX
10 FD    BPL *-1
Clobbers X, and Z&N
8 bytes
C5 C5    CMP $C5
48       PHA
A9 4A    LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
68       PLA
Clobbers Z&N, and C
08       PHP
A5 A5    LDA $A5
A9 4A    LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
28       PLP
Clobbers A
10 bytes
08       PHP
48       PHA
A9 2A    LDA #$2A ;hides 'ROL A'
08       PHP
28       PLP
10 FB    BPL *-3
68       PLA
28       PLP
No requirements


50 cycles

6 bytes
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A       ROL A ;first loop only
EA       NOP
B0 FB    BCS *-3
Clobbers A, Z&N, C, and V
A2 07    LDX #7
EA       NOP
CA       DEX
D0 FC    BNE *-2
Clobbers X, and Z&N
A0 06    LDY #6
EA       NOP
88       DEY
10 FC    BPL *-2
Clobbers Y, and Z&N
7 bytes
98       TYA
A0 09    LDY #9
88       DEY
D0 FD    BNE *-1
A8       TAY
Clobbers A, and Z&N
8 bytes
48       PHA
38   ... SEC      × 2
A9 4A    LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
68       PLA
Clobbers Z&N, and C
08       PHP
38   ... SEC      × 2
A9 4A    LDA #$4A ;hides 'LSR A'
D0 FD    BNE *-1
28       PLP
Clobbers A
08       PHP
A2 05    LDX #5
EA       NOP
CA       DEX
10 FC    BPL *-2
28       PLP
Clobbers X
08       PHP
A0 06    LDY #6
EA       NOP
88       DEY
D0 FC    BNE *-2
28       PLP
Clobbers Y
9 bytes
08       PHP
48       PHA
A9 E9    LDA #$E9 ;hides 'SBC #$2A'
2A       ROL A ;first loop only
B0 FC    BCS *-2
68       PLA
28       PLP
No requirements


Sanity checks

It is possible to verify on compile time that no page wrap occurs, by replacing all branches with these macros:

.macro branch_check opc, dest
    opc dest
    .assert >* = >(dest), warning, "branch_check: failed, crosses page"
.endmacro
.macro bccnw dest
        branch_check bcc, dest
.endmacro
.macro bcsnw dest
        branch_check bcs, dest
.endmacro
.macro beqnw dest
        branch_check beq, dest
.endmacro
.macro bnenw dest
        branch_check bne, dest
.endmacro
.macro bminw dest
        branch_check bmi, dest
.endmacro
.macro bplnw dest
        branch_check bpl, dest
.endmacro
.macro bvcnw dest
        branch_check bvc, dest
.endmacro
.macro bvsnw dest
        branch_check bvs, dest
.endmacro

See also

  • Cycle counting
  • Delay code for functions that produce runtime-determined amount of delay
  • Bisqwit’s “vending machine” for producing a ca65-compatible delay_n macro for arbitrary number of cycles, with more fine-grained configurable constraints: http://bisqwit.iki.fi/utils/nesdelay.php The samples on this page are excerpts from files generated by this online tool.