NES 2.0 Mapper 431: Difference between revisions

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(This mapper does not exist after all. The sole cartridge using it is actually mapper 396.)
Tag: New redirect
 
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{{DEFAULTSORT:431}}[[Category:Multicart mappers]][[Category:Mappers with CHR RAM]]
#REDIRECT [[NES 2.0 Mapper 396]]
'''NES 2.0 Mapper 431''' denotes the Realtec '''GN-91B''', use a multicart consisting of two UNROM games.
 
==Outer Bank Register ($8000-$BFFF)==
Mask: $C000
D~7654 3210 (bus conflicts)
  ---------
  ..P. ...M
    |    +- 0: Vertical mirroring
    |        1: Horizontal mirroring
    +--- PRG A17
 
==Inner Bank Register ($C000-$FFFF)==
Mask: $C000
D~7654 3210 (bus conflicts)
  ---------
  .... .PPP
        +++- PRG A16..A14 if CPU A14=0

Latest revision as of 21:21, 5 October 2022

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