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Mapper 256: Add WRAM support.

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This commit is contained in:
NewRisingSun
2022-03-01 18:04:34 +01:00
parent 95b79c4745
commit de9e258f31
1 changed files with 17 additions and 1 deletions
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18
src/boards/onebus.c
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@@ -65,6 +65,8 @@ static SFORMAT StateRegs[] =
{ 0 }
};
static uint8 *WRAM;
static void PSync(void) {
uint8 bankmode = cpu410x[0xb] & 7;
uint8 mask = (bankmode == 0x7) ? (0xff) : (0x3f >> bankmode);
@@ -263,11 +265,14 @@ static void UNLOneBusPower(void) {
SetReadHandler(0x4000, 0x403f, UNLOneBusReadAPU40XX);
SetWriteHandler(0x4000, 0x403f, UNLOneBusWriteAPU40XX);
SetReadHandler(0x8000, 0xFFFF, CartBR);
SetReadHandler(0x6000, 0xFFFF, CartBR);
SetWriteHandler(0x6000, 0x7FFF, CartBW);
SetWriteHandler(0x2010, 0x201f, UNLOneBusWritePPU201X);
SetWriteHandler(0x4100, 0x410f, UNLOneBusWriteCPU410X);
SetWriteHandler(0x8000, 0xffff, UNLOneBusWriteMMC3);
FCEU_CheatAddRAM(8, 0x6000, WRAM);
setprg8r(0x10, 0x6000, 0);
Sync();
}
@@ -285,9 +290,16 @@ static void StateRestore(int version) {
Sync();
}
void UNLOneBus_Close(void) {
if (WRAM)
FCEU_gfree(WRAM);
WRAM = NULL;
}
void UNLOneBus_Init(CartInfo *info) {
info->Power = UNLOneBusPower;
info->Reset = UNLOneBusReset;
info->Close = UNLOneBus_Close;
if (((*(uint32*)&(info->MD5)) == 0x305fcdc3) || /* PowerJoy Supermax Carts */
((*(uint32*)&(info->MD5)) == 0x6abfce8e))
@@ -297,4 +309,8 @@ void UNLOneBus_Init(CartInfo *info) {
MapIRQHook = UNLOneBusCpuHook;
GameStateRestore = StateRestore;
AddExState(&StateRegs, ~0, 0, 0);
WRAM = (uint8*)FCEU_gmalloc(8192);
SetupCartPRGMapping(0x10, WRAM, 8192, 1);
}