INES Mapper 078: Difference between revisions
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[[Category:iNES Mappers]][[Category:Discrete logic mappers]] | [[Category:iNES Mappers|078]][[Category:Discrete logic mappers|078]][[Category:in NesCartDB|078]] | ||
Here are Disch's original notes: | Here are Disch's original notes: | ||
======================== | ======================== | ||
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would work (not to mention it's probably not a good idea anyway). | would work (not to mention it's probably not a good idea anyway). | ||
Registers: (** BUS CONFLICTS **) | |||
Registers: | |||
--------------------------- | --------------------------- | ||
| Line 49: | Line 46: | ||
| $8000 | { -1} | | | $8000 | { -1} | | ||
+---------------+---------------+ | +---------------+---------------+ | ||
For homebrew, both Nestopia-1.4.0 and FCEUX-2.1.5 default to the 1scA/1scB mirroring provided by Uchuusen. | |||
Revision as of 03:27, 4 August 2012
Here are Disch's original notes:
========================
= Mapper 078 =
========================
Example Games:
--------------------------
Holy Diver
Uchuusen - Cosmo Carrier
Notes:
---------------------------
This mapper number covers two seperate mappers which are *almost* identical... however the mirroring control
on each is different (making them incompatible). You'll probably have to do a CRC or Hash check to figure
out which mirroring setup to use.
I think some emus might also look at the mirroring bit in the iNES header to determine which setup to use --
however the ROMs I have do not seem to have the mirroring bit set differently, so I don't know how well that
would work (not to mention it's probably not a good idea anyway).
Registers: (** BUS CONFLICTS **)
---------------------------
$8000-FFFF: [CCCC MPPP]
C = CHR Reg (8k @ $0000)
P = PRG Reg (16k @ $8000)
M = Mirroring:
--For Uchuusen - Cosmo Carrier--
0 = 1ScA
1 = 1ScB
--For Holy Diver--
0 = Horz
1 = Vert
PRG Setup:
---------------------------
$8000 $A000 $C000 $E000
+---------------+---------------+
| $8000 | { -1} |
+---------------+---------------+
For homebrew, both Nestopia-1.4.0 and FCEUX-2.1.5 default to the 1scA/1scB mirroring provided by Uchuusen.
