INES Mapper 191: Difference between revisions

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(Variant of 119)
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[[Category:iNES Mappers]][[Category:MMC3-like mappers]]
[[Category:iNES Mappers]][[Category:MMC3-like mappers]]
'''iNES Mapper 191''' designates a board containing an MMC3 clone. It operates identically to [[iNES Mapper 119]] with two differences:
* CHR RAM is 2 KiB, instead of 8 KiB like on 119. (This can be overridden with [[NES 2.0]].)
* Bit 7 of the CHR bank number (A17) switches between CHR ROM and CHR RAM, instead of bit 6 (A16) like on 119.
   Here are Disch's original notes:   
   Here are Disch's original notes:   
   ========================
   ========================

Revision as of 23:38, 23 August 2012

iNES Mapper 191 designates a board containing an MMC3 clone. It operates identically to iNES Mapper 119 with two differences:

  • CHR RAM is 2 KiB, instead of 8 KiB like on 119. (This can be overridden with NES 2.0.)
  • Bit 7 of the CHR bank number (A17) switches between CHR ROM and CHR RAM, instead of bit 6 (A16) like on 119.
 Here are Disch's original notes:  
 ========================
 =  Mapper 191          =
 ========================
 
 
 aka:
 --------------------------
 Pirate MMC3 variant
 
 
 Example Game:
 --------------------------
 Sugoro Quest - Dice no Senshitachi (As)
 
 
 Notes:
 --------------------------
 This mapper is a modified MMC3 (or is based on MMC3?).
 
 In addition to any CHR-ROM present, there is also an additional 2k of CHR-RAM which is selectable.  Bit 7 of
 each CHR reg selects RAM or ROM (1=RAM, 0=ROM)
 
 Apart from that, this mapper behaves exactly like your typical MMC3.  See mapper 004 for details.