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'''A''' is byte-wide and along with the [[wikipedia:arithmetic logic unit|arithmetic logic unit]] (ALU), supports using the status register for carrying, overfl '''P''' has 6 bits used by the ALU but is byte-wide. PHP, PLP, arithmetic, testing, and branch instructions can access this register. See [[status fl

In binary arithmetic, division by 2^n is equivalent to shifting right n times. For this reason, ...nstruction, it can be achieved with the following [[Synthetic instructions#Arithmetic shift right|synthetic instruction]]:

In binary arithmetic, multiply by 2^n is equivalent to shifting left n times (technically this i [[Category:Arithmetic]]

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== Arithmetic shift right == The ARM instruction set has an arithmetic right shift, which doesn't alter the sign (top) bit.

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==== Arithmetic coding ==== Huffman coding is also a special case of arithmetic coding. In arithmetic coding, each symbol

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|Arithmetic Shift Left

...reads machine code from a memory and treats it as instructions to perform arithmetic and logic operations on other values in memory or to perform input and outp **[[wikipedia:Arithmetic logic unit|Arithmetic logic unit]]

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;Simple arithmetic

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* On the original 6502, this flag causes some arithmetic instructions to use [[wikipedia:Binary-coded_decimal|binary-coded decimal]]

...tor(A) - The accumulator can read and write to memory. It is used to store arithmetic and logic results such as addition and subtraction.

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.... It saves an instruction and a couple of cycles from each byte of decimal arithmetic, and removes the half-carry from the status byte - it also works for both a

...ollow this out of confusion with the mnemonic for [[Synthetic instructions#Arithmetic shift right|a pseudoinstruction]] that combines CMP #$80 (or ANC #$FF) then