INES Mapper 193
iNES Mapper 193 represents boards that use NTDEC’s TC-112 mapper IC.
Example Game:
--------------------------
Fighting Hero (Unl)
War in the Gulf & (Brazilian release)
Registers:
---------------------------
Regs at $6000-7FFF = no SRAM
Range,Mask: $6000-7FFF, $E007
$6000: [CCCC CC..] CHR Reg 0
$6001: [CCCC CCC.] CHR Reg 1
$6002: [CCCC CCC.] CHR Reg 2
$6003: [.... PPPP] PRG Reg
$6004: [.... ...M] Mirroring
0 = Vert (A10)
1 = Horz (A11)
No games are known to rely on changing mirroring at run-time. At least some games have hard-wired mirroring.
CHR Setup:
---------------------------
$0000 $0400 $0800 $0C00 $1000 $1400 $1800 $1C00
+-------------------------------+---------------+---------------+
| <<$6000>> | <$6001> | <$6002> |
+-------------------------------+---------------+---------------+
PRG Setup:
---------------------------
$8000 $A000 $C000 $E000
+-------+-------+-------+-------+
| $6003 | { -3} | { -2} | { -1} |
+-------+-------+-------+-------+