public override byte Read(int _fullAddress, bool _internal)
{
int ofs = _fullAddress - BaseAddress;
switch (ofs)
{
case 27: // Oszillator Stimme 3
{
byte[] b = new byte[1];
Random.NextBytes(b);
return(b[0]);
}
case 28: // gain of voice #3
{
SIDVoice v = GetVoice(2);
byte vol = (byte)(v.currGain * 15.0f);
return(vol);
}
case 29:
case 30:
case 31:
{
return(0xfF);
}
}
return(base.Read(_fullAddress, _internal));
}
public override void Process(int _ticks)
{
TicksToWait -= _ticks;
if (TicksToWait > 0)
{
return;
}
TicksToWait += 250; // microseconds
int ticksElapsed = 250;
// int ticksElapsed = _ticks;
for (int i = 0; i < 3; i++)
{
SIDVoice v = GetVoice(i);
if (v != null)
{
v.Process(ticksElapsed);
}
}
base.Process(ticksElapsed);
}
public void SetSIDVolume(float _volume)
{
for (int i = 0; i < 3; i++)
{
SIDVoice v = GetVoice(i);
v.SetVolume(_volume);
}
}
public override void Write(int _fullAddress, byte _val, bool _internal)
{
byte xval = Read(_fullAddress, true);
base.Write(_fullAddress, _val, _internal);
int ofs = _fullAddress - BaseAddress;
ofs %= 32;
_fullAddress = BaseAddress + ofs;
// voices
if ((ofs >= 0) && (ofs < 21))
{
int currVoice = 0;
if (ofs >= 7)
{
currVoice = 1;
}
if (ofs >= 14)
{
currVoice = 2;
}
SIDVoice v = GetVoice(currVoice);
v.Write(_fullAddress - BaseAddress, _val);
}
switch (_fullAddress)
{
case 0xd417:
{
FilterSettings = GetFilterSettings();
break;
}
case 0xd418:
{
FilterSettings = GetFilterSettings();
SetSIDVolume(FilterSettings.Volume);
SIDVoice v = GetVoice(2);
v.Mute = FilterSettings.Voice3Muted;
break;
}
}
}
public override void Reset()
{
Voice = new SIDVoice[3];
Voice[0] = CreateVoice(1);
Voice[1] = CreateVoice(2);
Voice[2] = CreateVoice(3);
Voice[0].SetGain(0);
Voice[1].SetGain(0);
Voice[2].SetGain(0);
Random = new Random((int)DateTime.Now.Ticks);
for (int i = 0; i < 3; i++)
{
SIDVoice v = GetVoice(i);
if (v != null)
{
v.Reset();
}
}
}
