public void LoadRom(byte[] rom)
{
cartridge = rom;
byte cartridgeType = rom [Address.CartridgeType];
byte romSize = rom [Address.RomSize];
byte ramSize = rom [Address.RamSize];
int romBankCount, ramBankCount, ramLength;
GetRomBankInfo(romSize, out romBankCount);
GetRamBankInfo(ramSize, out ramBankCount, out ramLength);
byte[][] romBanks = new byte[romBankCount][];
byte[][] ramBanks = new byte[ramBankCount][];
romBanks [0] = rom;
for (int i = 1; i < romBankCount; ++i)
{
romBanks [i] = new byte[RomBankLength];
Array.Copy(rom, i * RomBankLength, romBanks [i], 0, RomBankLength);
}
for (int i = 0; i < ramBankCount; ++i)
{
ramBanks [i] = new byte[ramLength];
}
mbc = GetMbc(cartridgeType, romBanks, ramBanks);
}
public void Reset(bool bios)
{
biosActive = bios;
ie = 0;
ir = 0;
Array.Clear(zram, 0, zram.Length);
Array.Clear(mmio, 0, mmio.Length);
Array.Clear(oam, 0, oam.Length);
Array.Clear(wram, 0, wram.Length);
Array.Clear(vram, 0, vram.Length);
mbc = null;
if (biosActive)
{
return;
}
wbr(0xFFFF, 0x00);
wbr(Address.NR10, 0x80);
wbr(Address.NR11, 0xBF);
wbr(Address.NR12, 0xF3);
wbr(Address.NR14, 0xBF);
wbr(Address.NR21, 0x3F);
wbr(Address.NR22, 0x00);
wbr(Address.NR24, 0xBF);
wbr(Address.NR30, 0x7F);
wbr(Address.NR31, 0xFF);
wbr(Address.NR32, 0x9F);
wbr(Address.NR33, 0xBF);
wbr(Address.NR41, 0xFF);
wbr(Address.NR42, 0x00);
wbr(Address.NR43, 0x00);
wbr(Address.NR44, 0xBF);
wbr(Address.NR50, 0x77);
wbr(Address.NR51, 0xF3);
wbr(Address.NR52, 0xF1);
wbr(Address.Bgp, 0xFC);
wbr(Address.Obp0, 0xFF);
wbr(Address.Obp1, 0xFF);
}
public void Reset()
{
Array.Clear(ie, 0, ie.Length);
Array.Clear(zram, 0, zram.Length);
Array.Clear(mmio, 0, mmio.Length);
Array.Clear(oam, 0, oam.Length);
Array.Clear(wram, 0, wram.Length);
Array.Clear(vram, 0, vram.Length);
wbr(0xFF05, (byte)0x00);
wbr(0xFF06, (byte)0x00);
wbr(0xFF07, (byte)0x00);
wbr(0xFF10, (byte)0x80);
wbr(0xFF11, (byte)0xBF);
wbr(0xFF12, (byte)0xF3);
wbr(0xFF14, (byte)0xBF);
wbr(0xFF16, (byte)0x3F);
wbr(0xFF17, (byte)0x00);
wbr(0xFF19, (byte)0xBF);
wbr(0xFF1A, (byte)0x7F);
wbr(0xFF1B, (byte)0xFF);
wbr(0xFF1C, (byte)0x9F);
wbr(0xFF1E, (byte)0xBF);
wbr(0xFF20, (byte)0xFF);
wbr(0xFF21, (byte)0x00);
wbr(0xFF22, (byte)0x00);
wbr(0xFF23, (byte)0xBF);
wbr(0xFF24, (byte)0x77);
wbr(0xFF25, (byte)0xF3);
wbr(0xFF26, (byte)0xF1);
wbr(0xFF40, (byte)0x91);
wbr(0xFF42, (byte)0x00);
wbr(0xFF43, (byte)0x00);
wbr(0xFF45, (byte)0x00);
wbr(0xFF47, (byte)0xFC);
wbr(0xFF48, (byte)0xFF);
wbr(0xFF49, (byte)0xFF);
wbr(0xFF4A, (byte)0x00);
wbr(0xFF4B, (byte)0x00);
wbr(0xFFFF, (byte)0x00);
mbc = null;
}
protected Mbc GetMbc(byte cartridgeType, byte[][] romBanks, byte[][] ramBanks)
{
Mbc mbc = null;
switch (cartridgeType)
{
case 0x00:
mbc = new Mbc0(romBanks);
break;
case 0x01:
mbc = new Mbc1(romBanks);
// case 0x02:
// mbc = new Mbc1 (romBanks, ramBanks);
// case 0x03:
// mbc = new Mbc1 (romBanks, ramBanks, true);
break;
default:
throw new Exception("Cartridge not implemented");
}
return(mbc);
}