INES Mapper 243: Difference between revisions
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(There's a term on the mirroring page for the odd mode that %10 produces) |
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[[Category:iNES Mappers|243]][[Category:Mappers using $4020-$5FFF|243]] | [[Category:iNES Mappers|243]][[Category:Mappers using $4020-$5FFF|243]] | ||
Based on Disch's original notes: | |||
======================== | ======================== | ||
= Mapper 243 = | = Mapper 243 = | ||
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%00 = Horz | %00 = Horz | ||
%01 = Vert | %01 = Vert | ||
%10 = | %10 = L-shaped; see below | ||
%11 = 1ScB | %11 = 1ScB | ||
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--------------------------- | --------------------------- | ||
Mirroring mode %10 is not quite 1ScB: | |||
[ NTA ][ NTB ] | [ NTA ][ NTB ] | ||
Revision as of 05:12, 27 October 2013
Based on 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 = L-shaped; see below
%11 = 1ScB
Mirroring:
---------------------------
Mirroring 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')
