INES Mapper 154: Difference between revisions
From NESdev Wiki
Jump to navigationJump to search
m (do the same simplification to the description that we did to m88) |
(preceeding wasn't a minor edit.) |
||
Line 2: | Line 2: | ||
[[iNES Mapper 154]] represents '''NAMCOT-3453''', a board used only for the game Devil Man. | [[iNES Mapper 154]] represents '''NAMCOT-3453''', a board used only for the game Devil Man. | ||
It is identical to [[iNES Mapper 088|Mapper 88]], | It is identical to [[iNES Mapper 088|Mapper 88]], but with the addition of a single bit allowing for mapper-controlled one-screen mirroring: | ||
$8000-$FFFF: [.Mxx xxxx] | $8000-$FFFF: [.Mxx xxxx] |
Revision as of 01:39, 16 July 2012
iNES Mapper 154 represents NAMCOT-3453, a board used only for the game Devil Man.
It is identical to Mapper 88, but with the addition of a single bit allowing for mapper-controlled one-screen mirroring:
$8000-$FFFF: [.Mxx xxxx] x = See mapper 206 documentation M = Mirroring 0 = 1ScA 1 = 1ScB
Note that this bit is present over the entire 32kB range; it is not present in only odd or even addresses unlike the associated Namcot 108.
Like mapper 88, content in the left pattern table ($0xxx) comes from the first 64kB of CHR-ROM and content in the right pattern table ($1xxx) comes from the last 64kB of CHR-ROM.