INES Mapper 049
Here are Disch’s original notes:
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= Mapper 049 =
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Example Game:
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Super HIK 4-in-1
Notes:
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Yet another MMC3 multicart. For info on MMC3, see mapper 004.
There is no PRG-RAM. The multicart reg lies at $6000-7FFF, but is only writable when MMC3 PRG-RAM is enabled
and writable (see $A001)
Registers:
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$6000-7FFF: [BBPP ...O] Multicart reg
B = Block
P = 32k PRG Reg
O = PRG Mode (0=32k mode)
$8000-FFFF: Same as MMC3 for selected block
Each block is 128k PRG and 128k CHR
PRG Setup:
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When the 'O' mode bit is clear, ordinary MMC3 PRG regs are ignored, and instead, 32k PRG page 'P' is swapped
in at $8000. When 'O' is set, 'P' is ignored, and MMC3 PRG regs work normally for the current block.
Powerup:
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$6000 set to 0 on powerup.