bsnes/icarus/heuristics/famicom.cpp

162 lines
3.7 KiB
C++

struct FamicomCartridge {
FamicomCartridge(const uint8_t* data, uint size);
string markup;
//private:
uint mapper;
uint mirror;
uint prgrom;
uint prgram;
uint chrrom;
uint chrram;
};
FamicomCartridge::FamicomCartridge(const uint8_t* data, uint size) {
if(size < 16) return;
if(data[0] != 'N') return;
if(data[1] != 'E') return;
if(data[2] != 'S') return;
if(data[3] != 26) return;
mapper = ((data[7] >> 4) << 4) | (data[6] >> 4);
mirror = ((data[6] & 0x08) >> 2) | (data[6] & 0x01);
prgrom = data[4] * 0x4000;
chrrom = data[5] * 0x2000;
prgram = 0u;
chrram = chrrom == 0u ? 8192u : 0u;
markup.append("board ");
switch(mapper) {
default:
markup.append("id:NES-NROM-256\n");
markup.append(" mirror mode=", mirror == 0 ? "horizontal" : "vertical", "\n");
break;
case 1:
markup.append("id:NES-SXROM\n");
markup.append(" chip type=MMC1B2\n");
prgram = 8192;
break;
case 2:
markup.append("id:NES-UOROM\n");
markup.append(" mirror mode=", mirror == 0 ? "horizontal" : "vertical", "\n");
break;
case 3:
markup.append("id:NES-CNROM\n");
markup.append(" mirror mode=", mirror == 0 ? "horizontal" : "vertical", "\n");
break;
case 4:
//MMC3
markup.append("id:NES-TLROM\n");
markup.append(" chip type=MMC3B\n");
prgram = 8192;
//MMC6
//markup.append("id:NES-HKROM\n");
//markup.append(" chip type=MMC6n");
//prgram = 1024;
break;
case 5:
markup.append("id:NES-ELROM\n");
markup.append(" chip type=MMC5\n");
prgram = 65536;
break;
case 7:
markup.append("id:NES-AOROM\n");
break;
case 9:
markup.append("id:NES-PNROM\n");
markup.append(" chip type=MMC2\n");
prgram = 8192;
break;
case 10:
markup.append("id:NES-FKROM\n");
markup.append(" chip type=MMC4\n");
prgram = 8192;
break;
case 16:
markup.append("id:BANDAI-FCG\n");
markup.append(" chip type=LZ93D50\n");
break;
case 21:
case 23:
case 25:
//VRC4
markup.append("id:KONAMI-VRC-4\n");
markup.append(" chip type=VRC4\n");
markup.append(" pinout a0=1 a1=0\n");
prgram = 8192;
break;
case 22:
//VRC2
markup.append("id:KONAMI-VRC-2\n");
markup.append(" chip type=VRC2\n");
markup.append(" pinout a0=0 a1=1\n");
break;
case 24:
markup.append("id:KONAMI-VRC-6\n");
markup.append(" chip type=VRC6\n");
break;
case 26:
markup.append("id:KONAMI-VRC-6\n");
markup.append(" chip type=VRC6\n");
prgram = 8192;
break;
case 34:
markup.append("id:NES-BNROM\n");
markup.append(" mirror mode=", mirror == 0 ? "horizontal" : "vertical", "\n");
break;
case 66:
markup.append("id:NES-GNROM\n");
markup.append(" mirror mode=", mirror == 0 ? "horizontal" : "vertical", "\n");
break;
case 69:
markup.append("id:SUNSOFT-5B\n");
markup.append(" chip type=5B\n");
prgram = 8192;
break;
case 73:
markup.append("id:KONAMI-VRC-3\n");
markup.append(" chip type=VRC3\n");
markup.append(" mirror mode=", mirror == 0 ? "horizontal" : "vertical", "\n");
prgram = 8192;
break;
case 75:
markup.append("id:KONAMI-VRC-1\n");
markup.append(" chip type=VRC1\n");
break;
case 85:
markup.append("id:KONAMI-VRC-7\n");
markup.append(" chip type=VRC7\n");
prgram = 8192;
break;
}
markup.append(" prg\n");
if(prgrom) markup.append(" rom name=program.rom size=0x", hex(prgrom), "\n");
if(prgram) markup.append(" ram name=save.ram size=0x", hex(prgram), "\n");
markup.append(" chr\n");
if(chrrom) markup.append(" rom name=character.rom size=0x", hex(chrrom), "\n");
if(chrram) markup.append(" ram size=0x", hex(chrram), "\n");
}