INES Mapper 196: Difference between revisions
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[[Category:INES Mappers | {{DEFAULTSORT:196}}[[Category:INES Mappers]][[Category:MMC3-like mappers]] | ||
[[ | [[iNES Mapper 196]] denotes circuit boards by '''MRCM''', who mostly made Mario-themed hacks of existing games. For copy protection purposes, the MMC3 clone's A0 input is connected to A1 or A2 instead. Additonally, one variant uses [[INES Mapper 189|mapper 189]]-style PRG banking. Submappers denote the particular variant used: | ||
* '''Submapper 0''': Actual variant unknown; use the following heuristics: | |||
** MMC3's CPU A0 input =1 if (CPU A1=1 or CPU A2=1 or CPU A3=1) and CPU A0=0 | |||
** Use normal MMC3 PRG banking until CPU 6000-7FFF is written to, after which use [[INES Mapper 189|mapper 189]]-style PRG banking | |||
* '''Submapper 1''': MMC3 CPU A0 input=CPU A1, normal MMC3 PRG banking | |||
* '''Submapper 2''': MMC3 CPU A0 input=CPU A2, normal MMC3 PRG banking | |||
* '''Submapper 3''': MMC3 CPU A0 input=CPU A1, [[INES Mapper 189|mapper 189]]-style PRG banking. | |||
Latest revision as of 22:16, 29 December 2024
iNES Mapper 196 denotes circuit boards by MRCM, who mostly made Mario-themed hacks of existing games. For copy protection purposes, the MMC3 clone's A0 input is connected to A1 or A2 instead. Additonally, one variant uses mapper 189-style PRG banking. Submappers denote the particular variant used:
- Submapper 0: Actual variant unknown; use the following heuristics:
- MMC3's CPU A0 input =1 if (CPU A1=1 or CPU A2=1 or CPU A3=1) and CPU A0=0
- Use normal MMC3 PRG banking until CPU 6000-7FFF is written to, after which use mapper 189-style PRG banking
- Submapper 1: MMC3 CPU A0 input=CPU A1, normal MMC3 PRG banking
- Submapper 2: MMC3 CPU A0 input=CPU A2, normal MMC3 PRG banking
- Submapper 3: MMC3 CPU A0 input=CPU A1, mapper 189-style PRG banking.
