public Emulator()
{
_cartridge = new Cartridge();
_gpu = new GPU();
_timer = new Timer();
_divideRegister = new DivideRegister();
_joypad = new Joypad();
_apu = new APU();
_mmu = new MMU(_cartridge, _gpu, _timer, _divideRegister, _joypad, _apu);
_cpu = new CPU(_mmu);
_cpu.OnClockTick += UpdateSystems;
}
public MMU(Cartridge cart, GPU gpu, Timer timer, DivideRegister divideRegister, Joypad joypad, APU apu)
{
var memoryUnits = new List <IMemoryUnit>
{
cart, gpu, _workRAM, joypad, divideRegister, timer, apu, new DMAController()
};
MessageBus.Instance.OnReadByte = ReadByte;
MessageBus.Instance.OnWriteByte = WriteByte;
for (var address = 0; address < MemorySchema.MAX_RAM_SIZE; address++)
{
foreach (var memoryUnit in memoryUnits)
{
if (memoryUnit.CanReadWriteByte(address))
{
_memoryUnitLookup[address] = memoryUnit;
break;
}
}
if (!_memoryUnitLookup.ContainsKey(address))
{
_memoryUnitLookup[address] = _mainMemory;
}
}
}