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Merge pull request #453 from grauw/scc-reset-period-counter

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Reset period counter when writing to period registers.
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tildearrow 2022-05-22 22:49:03 -05:00 • committed by GitHub
commit 3d4f2cfa13
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3 changed files with 12 additions and 3 deletions
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10
src/engine/platform/scc.cpp
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@ -161,9 +161,14 @@ void DivPlatformSCC::tick(bool sysTick) {
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,true,0,chan[i].pitch2,chipClock,CHIP_DIVIDER)-1;
if (chan[i].freq<0) chan[i].freq=0;
if (chan[i].freq>4095) chan[i].freq=4095;
rWrite(regBase+0+i*2,chan[i].freq&0xff);
rWrite(regBase+1+i*2,chan[i].freq>>8);
if (!chan[i].freqInit || regPool[regBase+0+i*2]!=(chan[i].freq&0xff)) {
rWrite(regBase+0+i*2,chan[i].freq&0xff);
}
if (!chan[i].freqInit || regPool[regBase+1+i*2]!=(chan[i].freq>>8)) {
rWrite(regBase+1+i*2,chan[i].freq>>8);
}
chan[i].freqChanged=false;
chan[i].freqInit=!skipRegisterWrites;
}
}
}
@ -286,6 +291,7 @@ void DivPlatformSCC::forceIns() {
for (int i=0; i<5; i++) {
chan[i].insChanged=true;
chan[i].freqChanged=true;
chan[i].freqInit=false;
if (isPlus || i<3) {
updateWave(i);
}