INES Mapper 242: Difference between revisions

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m (iNES category sorting)
(This is basically a smaller variant of mapper 227 and should be defined as such, so that menu-selecting-via-bit-8 multicarts can be described by it as well.)
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[[Category:iNES Mappers|242]]
[[Category:iNES Mappers|242]]
  Here are Disch's original notes: 
'''INES Mapper 242''' is a smaller version (512 KiB only) of the multicart variant of [[INES Mapper 227]] that is also used for a few 512 KiB single-game cartridges. The only functional difference is that reading the solder pad is accomplished by setting bit 8 (value $0100) instead of mapper 227's bit 10 (value $0400).
  ========================
  =  Mapper 242         =
  ========================
 
 
  Example Game:
  --------------------------
  Wai Xing Zhan Shi
 
 
 
  Registers:
  ---------------------------
 
    $8000-FFFF:  A~[.... .... .PPP P.M.]
      P = PRG Reg (32k @ $8000)
      M = Mirroring (0=Vert, 1=Horz)
 
 
  Powerup/Reset:
  ---------------------------
 
  Register set to 0 on powerup/reset.

Revision as of 17:46, 19 May 2021

INES Mapper 242 is a smaller version (512 KiB only) of the multicart variant of INES Mapper 227 that is also used for a few 512 KiB single-game cartridges. The only functional difference is that reading the solder pad is accomplished by setting bit 8 (value $0100) instead of mapper 227's bit 10 (value $0400).