INES Mapper 243: Difference between revisions

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(Created page with "Category:iNES Mappers Here are Disch's original notes: ======================== = Mapper 243 = ======================== Example Games: ---------…")
 
m (iNES category sorting)
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[[Category:iNES Mappers]]
[[Category:iNES Mappers|243]]
   Here are Disch's original notes:   
   Here are Disch's original notes:   
   ========================
   ========================

Revision as of 08:34, 28 September 2012

 Here are Disch's original notes:  
 ========================
 =  Mapper 243          =
 ========================
 
 
 Example Games:
 --------------------------
 Honey
 Poker III 5-in-1
 
 
 Registers:
 ---------------------------
 
 Range,Mask:   $4020-4FFF, $4101
 
   $4100:  [.... .AAA]   Address for use with $4101
 
   $4101:   Data port
      R:2 -> [.... ...H]  High bit of CHR reg
      R:4 -> [.... ...L]  Low bit of CHR reg
      R:5 -> [.... .PPP]  PRG reg  (32k @ $8000)
      R:6 -> [.... ..DD]  Middle bits of CHR reg
      R:7 -> [.... .MM.]  Mirroring
          %00 = Horz
          %01 = Vert
          %10 = See below
          %11 = 1ScB
 
 
 Mirroring:
 ---------------------------
 
 Mirroing mode %10 is not quite 1ScB:
 
   [  NTA  ][  NTB  ]
   [  NTB  ][  NTB  ]
 
 
 CHR Setup:
 ---------------------------
 
 8k CHR page @ $0000 is selected by the given 4 bit CHR page number ('HDDL')