INES Mapper 202: Difference between revisions

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Line 16: Line 16:
                     $0000  $0400  $0800  $0C00  $1000  $1400  $1800  $1C00  
                     $0000  $0400  $0800  $0C00  $1000  $1400  $1800  $1C00  
                   +-------------------------------+-------------------------------+
                   +-------------------------------+-------------------------------+
CHR-ROM:          |- - - - - - - - - - - - - - { 0 } - - - - - - - - - - -        |
CHR-ROM:          |                             { 0 }                             |
                   +-------------------------------+-------------------------------+
                   +-------------------------------+-------------------------------+


Line 28: Line 28:
$8000    $A0000    $C000    $E0000
$8000    $A0000    $C000    $E0000
+--------------------------------------
+--------------------------------------
|- - - - - - - - - {0} - - - - - -  - |
|               {0}                   |
+--------------------------------------
+--------------------------------------



Revision as of 23:50, 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} | +--------------------------------------