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it plays basic waves with reSID envelope for now

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This commit is contained in:
LTVA1 2024-07-30 21:01:17 +03:00
parent 719cec89b1
commit 8ac7fa7de5
4 changed files with 148 additions and 8 deletions
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23
src/engine/platform/sid3.cpp
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@ -107,6 +107,19 @@ void DivPlatformSID3::updateFilter(int channel)
//rWrite(0x17 + 3 * channel,chan[channel].filtRes);
}
void DivPlatformSID3::updateFreq(int channel)
{
rWrite(10 + channel*SID3_REGISTERS_PER_CHANNEL,(chan[channel].freq >> 16) & 0xff);
rWrite(11 + channel*SID3_REGISTERS_PER_CHANNEL,(chan[channel].freq >> 8) & 0xff);
rWrite(12 + channel*SID3_REGISTERS_PER_CHANNEL,chan[channel].freq & 0xff);
}
void DivPlatformSID3::updateDuty(int channel)
{
rWrite(7 + channel*SID3_REGISTERS_PER_CHANNEL,(chan[channel].duty >> 8) & 0xff);
rWrite(8 + channel*SID3_REGISTERS_PER_CHANNEL,chan[channel].duty & 0xff);
}
void DivPlatformSID3::tick(bool sysTick)
{
for (int i=0; i<SID3_NUM_CHANNELS; i++)
@ -115,13 +128,17 @@ void DivPlatformSID3::tick(bool sysTick)
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff)
{
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,false,8,chan[i].pitch2,chipClock,CHIP_FREQBASE);
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,false,2,chan[i].pitch2,chipClock,CHIP_FREQBASE * 64);
//if (chan[i].freq<0) chan[i].freq=0;
//if (chan[i].freq>0x1ffff) chan[i].freq=0x1ffff;
if (chan[i].keyOn)
{
rWrite(i*SID3_REGISTERS_PER_CHANNEL,SID3_CHAN_ENABLE_GATE);
rWrite(6 + i*SID3_REGISTERS_PER_CHANNEL,SID3_WAVE_PULSE);
chan[i].duty = 0x1000;
updateDuty(i);
}
if (chan[i].keyOff)
{
@ -129,7 +146,9 @@ void DivPlatformSID3::tick(bool sysTick)
}
if (chan[i].freq<0) chan[i].freq=0;
if (chan[i].freq>0x1ffff) chan[i].freq=0x1ffff;
if (chan[i].freq>0xffffff) chan[i].freq=0xffffff;
updateFreq(i);
//rWrite(i*7,chan[i].freq&0xff);
//rWrite(i*7+1,chan[i].freq>>8);