public void LoadRom(MemoryBlock externalRom)
{
RomInformation romInformation;
if (externalRom == null) throw new ArgumentNullException("externalRom");
if ((externalRom.Length & 0x3FFF) != 0
|| (externalRom.Length >> 14) > 256)
throw new InvalidOperationException();
romInformation = new RomInformation(externalRom);
if (romInformation.RomSize != externalRom.Length) throw new InvalidOperationException();
Mapper mapper;
switch (romInformation.RomType)
{
case RomType.RomOnly:
case RomType.RomRam:
case RomType.RomRamBattery:
mapper = new Mappers.RomController(this);
break;
case RomType.RomMbc1:
case RomType.RomMbc1Ram:
case RomType.RomMbc1RamBattery:
mapper = new Mappers.MemoryBankController1(this);
break;
case RomType.RomMbc2:
case RomType.RomMbc2Battery:
mapper = new Mappers.MemoryBankController2(this);
break;
case RomType.RomMbc3:
case RomType.RomMbc3Ram:
case RomType.RomMbc3RamBattery:
case RomType.RomMbc3TimerBattery:
case RomType.RomMbc3TimerRamBattery:
mapper = new Mappers.MemoryBankController3(this);
break;
case RomType.RomMbc5:
case RomType.RomMbc5Ram:
case RomType.RomMbc5RamBattery:
case RomType.RomMbc5Rumble:
case RomType.RomMbc5RumbleRam:
case RomType.RomMbc5RumbleRamBattery:
mapper = new Mappers.MemoryBankController5(this);
break;
default:
throw new NotSupportedException("Unsupported Cartidge Type");
}
#if WITH_THREADING
SuspendEmulation();
#endif
this.romInformation = romInformation;
this.externalRomBlock = externalRom;
this.mapper = mapper;
this.colorMode = ColorHardware & romInformation.ColorGameBoySupport;
#if WITH_DEBUGGING
ClearBreakpoints();
#endif
Reset(); // Will call “ResumeEmulation”…
// Fills the external RAM with random data.
// It can be loaded with real data later.
unsafe { RandomFill((byte*)externalRamBlock.Pointer, externalRamBlock.Length); }
romLoaded = true;
}
public void UnloadRom()
{
if (externalRomBlock != null)
{
#if WITH_THREADING
SuspendEmulation();
#endif
this.mapper = null;
this.externalRomBlock = null;
this.romInformation = null;
this.colorMode = ColorHardware;
#if WITH_DEBUGGING
ClearBreakpoints();
#endif
Reset(); // Will call “ResumeEmulation”…
}
}