public void Loop()
{
while (!_Halted)
{
byte instruction = _MMU.ReadByte(_RegPC);
bool prefixed = false;
if (instruction == INSTRUCTION_PREFIX)
{
instruction = _MMU.ReadByte((ushort)(_RegPC + 1));
prefixed = true;
}
Console.WriteLine($"{_RegPC.ToString("x2")}:{instruction.ToString("x2")}");
ExecuteInstruction(instruction, prefixed);
_PPU.Step();
Interupts();
if (_PPU.Line >= PPU._height + 10)
{
_PPU.Line = 0;
_Halted = true;
}
}
}
public void Step()
{
if (Line == 0)
{
_tileSet = new TileSet(_MMU.GetTileSet0());
_tileMap = new TileMap(_MMU.GetTileMap0());
}
if (Line < _height)
{
RenderScan(Line);
}
else if (Line == _height)
{
byte interruptsTriggered = _MMU.ReadByte(INTERRUPTS_TRIGGERED_ADDRESS);
_MMU.WriteByte(INTERRUPTS_TRIGGERED_ADDRESS, (byte)(interruptsTriggered | 0b00000001));
}
_MMU.WriteByte(_lyAddress, (byte)Line);
Line++;
}