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Added WRAM support for OneBus mapper (mapper 256)

This commit is contained in:
Alexey 'Cluster' Avdyukhin 2022-01-25 21:44:49 +03:00
parent e42a966afc
commit c8a0f4ca78
1 changed files with 30 additions and 0 deletions
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30
src/boards/onebus.cpp
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@ -47,6 +47,9 @@ static int16 pcm_addr, pcm_size, pcm_latch, pcm_clock = 0xE1;
static writefunc defapuwrite[64];
static readfunc defapuread[64];
static uint32 WRAMSIZE;
static uint8 *WRAM = NULL;
static SFORMAT StateRegs[] =
{
{ cpu410x, 16, "REGC" },
@ -265,6 +268,13 @@ static void UNLOneBusPower(void) {
SetWriteHandler(0x4100, 0x410f, UNLOneBusWriteCPU410X);
SetWriteHandler(0x8000, 0xffff, UNLOneBusWriteMMC3);
if (WRAMSIZE) {
FCEU_CheatAddRAM(WRAMSIZE >> 10, 0x6000, WRAM);
SetWriteHandler(0x6000, 0x6000 + ((WRAMSIZE - 1) & 0x1fff), CartBW);
SetReadHandler(0x6000, 0x6000 + ((WRAMSIZE - 1) & 0x1fff), CartBR);
setprg8r(0x10, 0x6000, 0);
}
Sync();
}
@ -282,9 +292,16 @@ static void StateRestore(int version) {
Sync();
}
void UNLOneBusClose(void) {
if (WRAM)
FCEU_gfree(WRAM);
WRAM = NULL;
}
void UNLOneBus_Init(CartInfo *info) {
info->Power = UNLOneBusPower;
info->Reset = UNLOneBusReset;
info->Close = UNLOneBusClose;
if (((*(uint32*)&(info->MD5)) == 0x305fcdc3) || // PowerJoy Supermax Carts
((*(uint32*)&(info->MD5)) == 0x6abfce8e))
@ -294,4 +311,17 @@ void UNLOneBus_Init(CartInfo *info) {
MapIRQHook = UNLOneBusCpuHook;
GameStateRestore = StateRestore;
AddExState(&StateRegs, ~0, 0, 0);
WRAMSIZE = 8 * 1024;
if (info->ines2)
WRAMSIZE = info->wram_size + info->battery_wram_size;
if (WRAMSIZE) {
WRAM = (uint8*)FCEU_gmalloc(WRAMSIZE);
SetupCartPRGMapping(0x10, WRAM, WRAMSIZE, 1);
AddExState(WRAM, WRAMSIZE, 0, "WRAM");
if (info->battery) {
info->SaveGame[0] = WRAM;
info->SaveGameLen[0] = WRAMSIZE;
}
}
}