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add song tuning

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soon: system clock settings
This commit is contained in:
tildearrow 2022-01-28 00:55:51 -05:00
parent 0071894471
commit ec66b7a21b
26 changed files with 211 additions and 156 deletions
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2
src/engine/platform/arcade.cpp
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@ -330,7 +330,7 @@ void DivPlatformArcade::tick() {
if (chan[i].freqChanged) {
chan[i].freq=chan[i].baseFreq+(chan[i].pitch>>1)-64;
if (chan[i].furnacePCM) {
chan[i].pcm.freq=MIN(255,((440.0*pow(2.0,double(chan[i].freq+256)/(64.0*12.0)))*255)/31250);
chan[i].pcm.freq=MIN(255,((parent->song.tuning*pow(2.0,double(chan[i].freq+256)/(64.0*12.0)))*255)/31250);
if (dumpWrites && i>=8) {
addWrite(0x10007+((i-8)<<3),chan[i].pcm.freq);
}