public Voice()
{
wave = new WaveformGenerator();
envelope = new EnvelopeGenerator();
muted = false;
set_chip_model(SIDDefs.chip_model.MOS6581);
}
// deserializing
protected void LoadFromReader(BinaryReader reader)
{
wave = new WaveformGenerator(reader);
envelope = new EnvelopeGenerator(reader);
muted = reader.ReadBoolean();
wave_zero = reader.ReadInt32();
voice_DC = reader.ReadInt32();
}
public InternalState read_state()
{
InternalState state = new InternalState();
int j = 0;
WaveformGenerator wave = voice0.wave;
EnvelopeGenerator envelope = voice0.envelope;
state.sid_register[j + 0] = (char)(wave.freq & 0xff);
state.sid_register[j + 1] = (char)(wave.freq >> 8);
state.sid_register[j + 2] = (char)(wave.pw & 0xff);
state.sid_register[j + 3] = (char)(wave.pw >> 8);
state.sid_register[j + 4] = (char)((wave.waveform << 4) | ((wave.test != 0) ? 0x08 : 0) | ((wave.ring_mod != 0) ? 0x04 : 0) | ((wave.sync != 0) ? 0x02 : 0) | ((envelope.gate != 0) ? 0x01 : 0));
state.sid_register[j + 5] = (char)((envelope.attack << 4) | envelope.decay);
state.sid_register[j + 6] = (char)((envelope.sustain << 4) | envelope.release);
j++;
wave = voice1.wave;
envelope = voice1.envelope;
state.sid_register[j + 0] = (char)(wave.freq & 0xff);
state.sid_register[j + 1] = (char)(wave.freq >> 8);
state.sid_register[j + 2] = (char)(wave.pw & 0xff);
state.sid_register[j + 3] = (char)(wave.pw >> 8);
state.sid_register[j + 4] = (char)((wave.waveform << 4) | ((wave.test != 0) ? 0x08 : 0) | ((wave.ring_mod != 0) ? 0x04 : 0) | ((wave.sync != 0) ? 0x02 : 0) | ((envelope.gate != 0) ? 0x01 : 0));
state.sid_register[j + 5] = (char)((envelope.attack << 4) | envelope.decay);
state.sid_register[j + 6] = (char)((envelope.sustain << 4) | envelope.release);
j++;
wave = voice2.wave;
envelope = voice2.envelope;
state.sid_register[j + 0] = (char)(wave.freq & 0xff);
state.sid_register[j + 1] = (char)(wave.freq >> 8);
state.sid_register[j + 2] = (char)(wave.pw & 0xff);
state.sid_register[j + 3] = (char)(wave.pw >> 8);
state.sid_register[j + 4] = (char)((wave.waveform << 4) | ((wave.test != 0) ? 0x08 : 0) | ((wave.ring_mod != 0) ? 0x04 : 0) | ((wave.sync != 0) ? 0x02 : 0) | ((envelope.gate != 0) ? 0x01 : 0));
state.sid_register[j + 5] = (char)((envelope.attack << 4) | envelope.decay);
state.sid_register[j + 6] = (char)((envelope.sustain << 4) | envelope.release);
state.sid_register[j++] = (char)(filter.fc & 0x007);
state.sid_register[j++] = (char)(filter.fc >> 3);
state.sid_register[j++] = (char)((filter.res << 4) | filter.filt);
state.sid_register[j++] = (char)(((filter.voice3off != 0) ? 0x80 : 0) | (filter.hp_bp_lp << 4) | filter.vol);
// These registers are superfluous, but included for completeness.
for (; j < 0x1d; j++)
{
state.sid_register[j] = (char)(read(j));
}
for (; j < 0x20; j++)
{
state.sid_register[j] = (char)0;
}
state.bus_value = bus_value;
state.bus_value_ttl = bus_value_ttl;
state.accumulator0 = voice0.wave.accumulator;
state.shift_register0 = voice0.wave.shift_register;
state.rate_counter0 = voice0.envelope.rate_counter;
state.rate_counter_period0 = voice0.envelope.rate_period;
state.exponential_counter0 = voice0.envelope.exponential_counter;
state.exponential_counter_period0 = voice0.envelope.exponential_counter_period;
state.envelope_counter0 = voice0.envelope.envelope_counter;
state.envelope_state0 = voice0.envelope.state;
state.hold_zero0 = voice0.envelope.hold_zero;
state.accumulator1 = voice1.wave.accumulator;
state.shift_register1 = voice1.wave.shift_register;
state.rate_counter1 = voice1.envelope.rate_counter;
state.rate_counter_period1 = voice1.envelope.rate_period;
state.exponential_counter1 = voice1.envelope.exponential_counter;
state.exponential_counter_period1 = voice1.envelope.exponential_counter_period;
state.envelope_counter1 = voice1.envelope.envelope_counter;
state.envelope_state1 = voice1.envelope.state;
state.hold_zero1 = voice1.envelope.hold_zero;
state.accumulator2 = voice2.wave.accumulator;
state.shift_register2 = voice2.wave.shift_register;
state.rate_counter2 = voice2.envelope.rate_counter;
state.rate_counter_period2 = voice2.envelope.rate_period;
state.exponential_counter2 = voice2.envelope.exponential_counter;
state.exponential_counter_period2 = voice2.envelope.exponential_counter_period;
state.envelope_counter2 = voice2.envelope.envelope_counter;
state.envelope_state2 = voice2.envelope.state;
state.hold_zero2 = voice2.envelope.hold_zero;
return(state);
}