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mapper 4 - KT-008 board hacked into MMC3 for now.

This commit is contained in:
CaH4e3 2014-12-08 18:20:40 +00:00
parent 92f87c08ed
commit c5fce7dc20
1 changed files with 21 additions and 1 deletions
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22
trunk/src/boards/mmc3.cpp
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@ -182,6 +182,17 @@ DECLFW(MMC3_IRQWrite) {
}
}
// 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
DECLFW(KT008HackWrite) {
// FCEU_printf("%04x:%04x\n",A,V);
switch (A & 3) {
case 0: EXPREGS[0] = V; FixMMC3PRG(MMC3_cmd); break;
case 1: break; // unk
case 2: break; // unk
case 3: break; // unk
}
}
static void ClockMMC3Counter(void) {
int count = IRQCount;
if (!count || IRQReload) {
@ -220,7 +231,10 @@ static void GENCWRAP(uint32 A, uint8 V) {
}
static void GENPWRAP(uint32 A, uint8 V) {
setprg8(A, V & 0x7F); // [NJ102] Mo Dao Jie (C) has 1024Mb MMC3 BOARD, maybe something other will be broken
// [NJ102] Mo Dao Jie (C) has 1024Mb MMC3 BOARD, maybe something other will be broken
// also HengGe BBC-2x boards enables this mode as default board mode at boot up
setprg8(A, (V & 0x7F) | ((EXPREGS[0] & 4) << 4));
// 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
}
static void GENMWRAP(uint8 V) {
@ -246,6 +260,10 @@ void GenMMC3Power(void) {
SetWriteHandler(0x8000, 0xBFFF, MMC3_CMDWrite);
SetWriteHandler(0xC000, 0xFFFF, MMC3_IRQWrite);
SetReadHandler(0x8000, 0xFFFF, CartBR);
// 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
SetWriteHandler(0x5000,0x5FFF, KT008HackWrite);
A001B = A000B = 0;
setmirror(1);
if (mmc3opts & 1) {
@ -299,6 +317,8 @@ void GenMMC3_Init(CartInfo *info, int prg, int chr, int wram, int battery) {
info->SaveGameLen[0] = WRAMSIZE;
}
// 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
AddExState(EXPREGS, 1, 0, "EXPR");
AddExState(MMC3_StateRegs, ~0, 0, 0);
info->Power = GenMMC3Power;