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wow

This commit is contained in:
tildearrow 2021-12-05 01:30:33 -05:00
parent ff07a19405
commit e52f5c9147
2 changed files with 9 additions and 10 deletions
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16
src/engine/platform/c64.cpp
View File

@ -69,14 +69,9 @@ void DivPlatformC64::tick() {
}
}
if (chan[i].std.hadDuty) {
chan[i].duty=chan[i].std.duty;
if (i==3 && chan[i].duty>1) chan[i].duty=1;
DivInstrument* ins=parent->getIns(chan[i].ins);
if (i!=2) {
}
if (i==3) { // noise
chan[i].freqChanged=true;
}
chan[i].duty+=(signed char)chan[i].std.duty;
sid.write(i*7+2,chan[i].duty&0xff);
sid.write(i*7+3,chan[i].duty>>8);
}
if (chan[i].sweepChanged) {
chan[i].sweepChanged=false;
@ -97,7 +92,7 @@ void DivPlatformC64::tick() {
}
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
DivInstrument* ins=parent->getIns(chan[i].ins);
chan[i].freq=(chan[i].baseFreq*(ONE_SEMITONE-chan[i].pitch))/ONE_SEMITONE;
chan[i].freq=(chan[i].baseFreq*(ONE_SEMITONE+chan[i].pitch))/ONE_SEMITONE;
if (chan[i].keyOn) {
sid.write(i*7+5,(ins->c64.a<<4)|(ins->c64.d));
sid.write(i*7+6,(ins->c64.s<<4)|(ins->c64.r));
@ -138,6 +133,9 @@ int DivPlatformC64::dispatch(DivCommand c) {
chan[c.chan].note=c.value;
chan[c.chan].active=true;
chan[c.chan].keyOn=true;
chan[c.chan].duty=(parent->getIns(chan[c.chan].ins)->c64.duty*4095)/100;
sid.write(c.chan*7+2,chan[c.chan].duty&0xff);
sid.write(c.chan*7+3,chan[c.chan].duty>>8);
chan[c.chan].std.init(parent->getIns(chan[c.chan].ins));
break;
case DIV_CMD_NOTE_OFF:

3
src/engine/platform/c64.h
View File

@ -8,7 +8,8 @@
class DivPlatformC64: public DivDispatch {
struct Channel {
int freq, baseFreq, pitch, prevFreq;
unsigned char ins, note, duty, sweep;
unsigned char ins, note, sweep;
unsigned short duty;
bool active, insChanged, freqChanged, sweepChanged, keyOn, keyOff, inPorta, onTheKey;
signed char vol, outVol, wave;
DivMacroInt std;