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KT-008 handling fix for FF Xn games. probably they are the same mapper with a set of different modes switching by specific bits (TODO, check the hardware: i have FFX games, but haven't any KT-008 games!)

This commit is contained in:
g0me3 2019-06-24 15:52:06 +03:00
parent 8b19f0124f
commit 705f1c905c
1 changed files with 11 additions and 1 deletions
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12
src/boards/mmc3.cpp
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@ -113,6 +113,9 @@ void MMC3RegReset(void) {
DRegBuf[6] = 0;
DRegBuf[7] = 1;
// KT-008 boards hack 2-in-1, TODO assign to new ines mapper, most dump of KT-boards on the net are mapper 4, so need database or goodnes fix support
kt_extra = 0;
FixMMC3PRG(0);
FixMMC3CHR(0);
}
@ -187,7 +190,14 @@ DECLFW(MMC3_IRQWrite) {
DECLFW(KT008HackWrite) {
// FCEU_printf("%04x:%04x\n",A,V);
switch (A & 3) {
case 0: kt_extra = V; FixMMC3PRG(MMC3_cmd); break;
case 0: {
if (V == 0x27) // FF Xn hack! one more mapper in one
kt_extra = 0;
else
kt_extra = V;
FixMMC3PRG(MMC3_cmd);
break;
}
case 1: break; // unk
case 2: break; // unk
case 3: break; // unk