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M197: Add submappers 1-3.

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NewRisingSun
2023-03-27 20:33:16 +02:00
parent 82cc4406e4
commit a882038757
1 changed files with 70 additions and 9 deletions
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79
src/boards/mmc3.c
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@@ -1095,18 +1095,79 @@ void UNLMaliSB_Init(CartInfo *info) {
/* ---------------------------- Mapper 197 ------------------------------- */
static void M197CW(uint32 A, uint8 V) {
if (A == 0x0000)
setchr4(0x0000, V >> 1);
else if (A == 0x1000)
setchr2(0x1000, V);
else if (A == 0x1400)
setchr2(0x1800, V);
static void M197S0CW(uint32 A, uint8 V) {
switch(A) {
case 0x0000: setchr2(0x0000, V); break;
case 0x0400: setchr2(0x0800, V); break;
case 0x1000: setchr2(0x1000, V); break;
case 0x1400: setchr2(0x1800, V); break;
}
}
static void M197S1CW(uint32 A, uint8 V) {
switch(A) {
case 0x0800: setchr2(0x0000, V); break;
case 0x0C00: setchr2(0x0800, V); break;
case 0x1800: setchr2(0x1000, V); break;
case 0x1C00: setchr2(0x1800, V); break;
}
}
static void M197S2CW(uint32 A, uint8 V) {
switch(A) {
case 0x0000: setchr2(0x0000, V); break;
case 0x0C00: setchr2(0x0800, V); break;
case 0x1000: setchr2(0x1000, V); break;
case 0x1C00: setchr2(0x1800, V); break;
}
}
static void M197S3CW(uint32 A, uint8 V) {
switch(A) {
case 0x0000: setchr2(0x0000, V | EXPREGS[0] <<7 &0x100); break;
case 0x0400: setchr2(0x0800, V | EXPREGS[0] <<7 &0x100); break;
case 0x1000: setchr2(0x1000, V | EXPREGS[0] <<7 &0x100); break;
case 0x1400: setchr2(0x1800, V | EXPREGS[0] <<7 &0x100); break;
}
}
static void M197S3PW(uint32 A, uint8 V) {
setprg8(A, V &(EXPREGS[0] &8? 0x0F: 0x1F) | EXPREGS[0] <<4);
}
static DECLFW(Mapper197S3Write) {
if (A001B &0x80) {
EXPREGS[0] =V;
FixMMC3PRG(MMC3_cmd);
FixMMC3CHR(MMC3_cmd);
}
}
static void Mapper197S3_Reset(void) {
EXPREGS[0] =0;
FixMMC3PRG(MMC3_cmd);
FixMMC3CHR(MMC3_cmd);
}
static void Mapper197S3_Power(void) {
EXPREGS[0] =0;
GenMMC3Power();
SetWriteHandler(0x6000, 0x7fff, Mapper197S3Write);
}
void Mapper197_Init(CartInfo *info) {
GenMMC3_Init(info, 128, 512, 8, 0);
cwrap = M197CW;
GenMMC3_Init(info, 128, 512, 8, 0);
switch(info->submapper) {
case 0: cwrap =M197S0CW; break;
case 1: cwrap =M197S1CW; break;
case 2: cwrap =M197S2CW; break;
case 3: cwrap =M197S3CW;
pwrap =M197S3PW;
info->Power = Mapper197S3_Power;
info->Reset = Mapper197S3_Reset;
break;
}
AddExState(EXPREGS, 1, 0, "EXPR");
}
/* ---------------------------- Mapper 198 ------------------------------- */