public void Tick()
{
if (!_enabled)
{
return;
}
for (var i = 0; i < _allModes.Length; i++)
{
var abstractSoundMode = _allModes[i];
var channel = abstractSoundMode.Tick();
_channels[i] = channel;
}
var selection = _ram.GetByte(0xff25);
var left = 0;
var right = 0;
for (var i = 0; i < 4; i++)
{
if (!_overridenEnabled[i])
{
continue;
}
if ((selection & (1 << i + 4)) != 0)
{
left += _channels[i];
}
if ((selection & (1 << i)) != 0)
{
right += _channels[i];
}
}
left /= 4;
right /= 4;
var volumes = _ram.GetByte(0xff24);
left *= ((volumes >> 4) & 0b111);
right *= (volumes & 0b111);
_output.Play((byte)left, (byte)right);
}
public override int GetByte(int address)
{
if (!_waveRam.Accepts(address))
{
return(base.GetByte(address));
}
if (!IsEnabled())
{
return(_waveRam.GetByte(address));
}
if (_waveRam.Accepts(_lastReadAddress) && (Gbc || _ticksSinceRead < 2))
{
return(_waveRam.GetByte(_lastReadAddress));
}
return(0xff);
}