INES Mapper 079: Difference between revisions

From NESdev Wiki
Jump to navigationJump to search
m (cat:GNROM)
(become a redirect)
 
(4 intermediate revisions by 2 users not shown)
Line 1: Line 1:
[[Category:iNES Mappers]][[Category:GNROM-like mappers]]
#REDIRECT [[NINA-003-006]]
 
[[Category:iNES Mappers|079]][[Category:GNROM-like mappers|079]][[Category:in NesCartDB|079]][[Category:Mappers using $4020-$5FFF|079]]
[[iNES Mapper 079]] is used to designate the [[NINA-003-006|NINA-003/6]] boards.
 
  Here are Disch's original notes: 
  ========================
  =  Mapper 079         =
  ========================
 
  Example Games:
  --------------------------
  Blackjack
  Dudes with Attitude
  F-15 City War
  Krazy Kreatures
 
 
 
  Registers:
  ---------------------------
 
  Range,Mask:  $4100-5FFF, $4100
 
    be sure to make note of the mask -- $4200 does not map to the register, but $4300 does.
 
 
    $4100:  [.CPP PCCC]
      C = CHR Reg (8k @ $0000)
      P = PRG Reg (32k @ $8000)
 
  Note the high bit of the CHR Reg.
The largest game in BootGod's database is 64k/64k and its hardware only has 4 bits of state, mapped as
    $4100:  [.... PCCC]     with the same meaning as above.
Note that FCEUX implements the register as
    $4100:  [.... P...]
            [CCCC CCCC]
  Note that one bit is used for both CHR and PRG
    $8000: [CCCC CCCC]
      C = CHR Reg (8k @ $0000)
and Nestopia implements the register as
    $4100:  [PPPP P...]
            [CCCC CCCC]

Latest revision as of 22:01, 30 May 2014

Redirect to: