INES Mapper 049: Difference between revisions
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[[Category:iNES Mappers]][[Category:MMC3-like mappers]] | [[Category:iNES Mappers|049]][[Category:MMC3-like mappers|049]] | ||
Here are Disch's original notes: | Here are Disch's original notes: | ||
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Yet another MMC3 multicart. For info on MMC3, see mapper 004. | Yet another [[MMC3]] multicart. For info on MMC3, see [[INES Mapper 004|mapper 004]]. | ||
There is no PRG-RAM. The multicart reg lies at $6000-7FFF, but is only writable when MMC3 PRG-RAM is enabled | There is no PRG-RAM. The multicart reg lies at $6000-7FFF, but is only writable when MMC3 PRG-RAM is enabled | ||
Latest revision as of 08:39, 28 September 2012
Here are Disch's original notes: ======================== = Mapper 049 = ======================== Example Game: -------------------------- Super HIK 4-in-1 Notes: --------------------------- 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: --------------------------- $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: --------------------------- 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: --------------------------- $6000 set to 0 on powerup.
