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add two new compatibility flags

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proper noise range and duty macro is wave volume
This commit is contained in:
tildearrow 2022-02-06 01:56:50 -05:00
parent 8772439d3e
commit e06e316e10
8 changed files with 79 additions and 13 deletions
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9
src/engine/platform/gb.cpp
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@ -144,6 +144,10 @@ void DivPlatformGB::tick() {
DivInstrument* ins=parent->getIns(chan[i].ins);
if (i!=2) {
rWrite(16+i*5+1,((chan[i].duty&3)<<6)|(63-(ins->gb.soundLen&63)));
} else {
if (parent->song.waveDutyIsVol) {
rWrite(16+i*5+2,gbVolMap[(chan[i].std.duty&3)<<2]);
}
}
}
if (chan[i].std.hadWave) {
@ -164,7 +168,10 @@ void DivPlatformGB::tick() {
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
DivInstrument* ins=parent->getIns(chan[i].ins);
if (i==3) { // noise
chan[i].freq=noiseTable[chan[i].baseFreq];
int ntPos=chan[i].baseFreq;
if (ntPos<0) ntPos=0;
if (ntPos>255) ntPos=255;
chan[i].freq=noiseTable[ntPos];
} else {
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,true);
if (chan[i].freq>2047) chan[i].freq=2047;