INES Mapper 202

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} | +--------------------------------------