INES Mapper 025: Difference between revisions

Latest revision as of 20:28, 28 April 2017

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+#REDIRECT [[VRC2 and VRC4]]
 {{DEFAULTSORT:025}}[[Category:iNES Mappers]][[Category:in NesCartDB]][[Category:NES 2.0 mappers with submappers]][[Category:Mappers with cycle IRQs]]
-[[iNES Mapper 025]] is used to represent the [[VRC4]]b (PCB '''351406''') and VRC4d (PCB '''352400''') variants of Konami's [[VRC4]] mapper, as well as the [[VRC2]]-using board '''351948''' used for ''Ganbare Goemon Gaiden: Keita Ougon Kiseru''. The last has 8kB RAM (like VRC4) and doesn't divide the CHR bank numbers by two (unlike [[iNES Mapper 022|mapper 22]]).
-For details see the following:
-* [[INES Mapper 021]] / [[VRC4]]
-* [[INES Mapper 022]] / [[VRC2]]
-Note that the VRC4d variant uses different address lines to select registers than '''351948''' and the VRC4b variants. Your emulator implementation must either combine address lines (like FCEUX; bitwise OR is good enough), use checksums, or NES 2.0 submappers.