INES Mapper 202: Difference between revisions

From NESdev Wiki
Jump to navigationJump to search
No edit summary
mNo edit summary
Line 1: Line 1:
Mapper 202
[[Category:iNES Mappers|202]][[Category:Multicart mappers|202]]


Used for the 150-in-1 pirate cart
  ========================
  =  Mapper 202          =
  ========================


Registers:
 
$8000-FFFF: A~[.... .... .... O..O]
 
Used for the 150-in-1 pirate cart
 
Registers:
$8000-FFFF: A~[.... .... .... O..O]
               [.... .... .... RRRM]
               [.... .... .... RRRM]




O = Prg Mode, if 3, will use 32 Prg mode, else 16
O = Prg Mode, if 3, will use 32 Prg mode, else 16
R = page registers, used for both chr 8k banks, and prg banks (in both 16k and 32k modes)
R = page registers, used for both chr 8k banks, and prg banks (in both 16k and 32k modes)
M = Mirroring, 0 = Vertical, 1 = Horizontal
M = Mirroring, 0 = Vertical, 1 = Horizontal


CHR Setup:
CHR Setup:


                     $0000  $0400  $0800  $0C00  $1000  $1400  $1800  $1C00  
                     $0000  $0400  $0800  $0C00  $1000  $1400  $1800  $1C00  
                  +-------------------------------+-------------------------------+
                  +-------------------------------+-------------------------------+
CHR-ROM:          |                            { 0 }                            |
CHR-ROM:          |                            { 0 }                            |
                  +-------------------------------+-------------------------------+
                  +-------------------------------+-------------------------------+






PRG Setup:
PRG Setup:
------------------------------
------------------------------


32k Mode:
32k Mode:


$8000    $A0000    $C000    $E0000
$8000    $A0000    $C000    $E0000
+--------------------------------------
+--------------------------------------
|              {0}                  |
|              {0}                  |
+--------------------------------------
+--------------------------------------




16k Mode:
16k Mode:


In 16k mode both regions are mapped to the same prg bank
In 16k mode both regions are mapped to the same prg bank


$8000    $A0000    $C000    $E0000
$8000    $A0000    $C000    $E0000
+--------------------------------------
+--------------------------------------
|    {0}            |    {0}         |
|    {0}            |    {0}       |
+--------------------------------------
+--------------------------------------

Revision as of 23:55, 1 September 2015


 ========================
 =  Mapper 202          =
 ========================


Used for the 150-in-1 pirate cart
Registers:
$8000-FFFF: A~[.... .... .... O..O]
             [.... .... .... RRRM]


O = Prg Mode, if 3, will use 32 Prg mode, else 16
R = page registers, used for both chr 8k banks, and prg banks (in both 16k and 32k modes)
M = Mirroring, 0 = Vertical, 1 = Horizontal
CHR Setup:
                   $0000   $0400   $0800   $0C00   $1000   $1400   $1800   $1C00 
                  +-------------------------------+-------------------------------+
CHR-ROM:          |                             { 0 }                             |
                  +-------------------------------+-------------------------------+


PRG Setup:
------------------------------
32k Mode:
$8000     $A0000     $C000     $E0000
+--------------------------------------
|               {0}                   |
+--------------------------------------


16k Mode:
In 16k mode both regions are mapped to the same prg bank
$8000     $A0000     $C000     $E0000
+--------------------------------------
|     {0}            |     {0}        |
+--------------------------------------