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el diego 2 finally plays back correctly

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This commit is contained in:
tildearrow 2021-12-27 16:31:16 -05:00
parent 4f2ce0f907
commit 65444d4a99
10 changed files with 20 additions and 13 deletions
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4
src/engine/platform/ym2610.cpp
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@ -75,7 +75,7 @@ void DivPlatformYM2610::tick() {
chan[i].psgMode|=(chan[i].std.wave+1)&3;
}
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
chan[i].freq=(chan[i].baseFreq*(ONE_SEMITONE-chan[i].pitch))/ONE_SEMITONE;
chan[i].freq=(chan[i].baseFreq*pow(2,(double)-chan[i].pitch/(12.0*128.0)));
if (chan[i].freq>4095) chan[i].freq=4095;
if (chan[i].keyOn) {
//rWrite(16+i*5+1,((chan[i].duty&3)<<6)|(63-(ins->gb.soundLen&63)));
@ -119,7 +119,7 @@ void DivPlatformYM2610::tick() {
for (int i=0; i<4; i++) {
if (i==1 && extMode) continue;
if (chan[i].freqChanged) {
chan[i].freq=(chan[i].baseFreq*(ONE_SEMITONE+chan[i].pitch))/ONE_SEMITONE;
chan[i].freq=(chan[i].baseFreq*pow(2,(double)chan[i].pitch/(12.0*128.0)));
int freqt=toFreq(chan[i].freq);
immWrite(chanOffs[i]+0xa4,freqt>>8);
immWrite(chanOffs[i]+0xa0,freqt&0xff);