private void StartEmulation(string gamePath)
{
_cancellationTokenSource?.Cancel();
_joypad.ResetJoypadState();
Cartridge cartridge = Cartridge.LoadCartridge(gamePath);
var nes = new NES(cartridge, _joypad);
_cancellationTokenSource = new CancellationTokenSource();
Task.Factory.StartNew(() => RunGame(nes, _cancellationTokenSource.Token), TaskCreationOptions.LongRunning);
}