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M052: Add submapper 14.

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This commit is contained in:
NewRisingSun
2023-03-27 18:13:56 +02:00
parent ce05415078
commit a96b0d6d0f
1 changed files with 11 additions and 3 deletions
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14
src/boards/mmc3.c
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@@ -657,7 +657,6 @@ static void M52PW(uint32 A, uint8 V) {
static void M52CW(uint32 A, uint8 V) {
uint32 mask = 0xFF ^ ((EXPREGS[0] & 0x40) << 1);
/* uint32 bank = (((EXPREGS[0]>>3)&4)|((EXPREGS[0]>>1)&2)|((EXPREGS[0]>>6)&(EXPREGS[0]>>4)&1))<<7; */
uint32 bank = (((EXPREGS[0] >> 4) & 2) | (EXPREGS[0] & 4) | ((EXPREGS[0] >> 6) & (EXPREGS[0] >> 4) & 1)) << 7; /* actually 256K CHR banks index bits is inverted! */
if (CHRRAM && (EXPREGS[0] &3) ==3)
setchr1r(0x10, A, bank | (V & mask));
@@ -665,6 +664,15 @@ static void M52CW(uint32 A, uint8 V) {
setchr1(A, bank | (V & mask));
}
static void M52S14CW(uint32 A, uint8 V) {
uint32 mask = 0xFF ^ ((EXPREGS[0] & 0x40) << 1);
uint32 bank = EXPREGS[0] <<3 &0x80 | EXPREGS[0] <<7 &0x300;
if (EXPREGS[0] &0x20)
setchr1r(0x10, A, bank | (V & mask));
else
setchr1(A, bank | (V & mask));
}
static DECLFW(M52Write) {
if (EXPREGS[1]) {
WRAM[A - 0x6000] = V;
@@ -689,12 +697,12 @@ static void M52Power(void) {
void Mapper52_Init(CartInfo *info) {
GenMMC3_Init(info, 256, 256, 8, info->battery);
cwrap = M52CW;
cwrap = info->submapper ==14? M52S14CW: M52CW;
pwrap = M52PW;
info->Reset = M52Reset;
info->Power = M52Power;
AddExState(EXPREGS, 2, 0, "EXPR");
if (info->iNES2 && info->submapper ==13) {
if (info->iNES2 && (info->submapper ==13 || info->submapper ==14)) {
CHRRAMSIZE = 8192;
CHRRAM = (uint8*)FCEU_gmalloc(CHRRAMSIZE);
SetupCartCHRMapping(0x10, CHRRAM, CHRRAMSIZE, 1);