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Merge pull request #482 from grauw/y8950-adpcm-fix 

Fix Y8950 ADPCM samples.
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tildearrow 2022-05-23 17:52:56 -05:00 committed by GitHub
parent 49943aba76 fc7b94876d
commit b849b5283b
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 7 deletions
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14
src/engine/platform/opl.cpp
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@ -734,12 +734,12 @@ int DivPlatformOPL::dispatch(DivCommand c) {
chan[c.chan].sample=ins->amiga.getSample(c.value);
if (chan[c.chan].sample>=0 && chan[c.chan].sample<parent->song.sampleLen) {
DivSample* s=parent->getSample(chan[c.chan].sample);
immWrite(9,(s->offB>>5)&0xff);
immWrite(10,(s->offB>>13)&0xff);
immWrite(8,0);
immWrite(9,(s->offB>>2)&0xff);
immWrite(10,(s->offB>>10)&0xff);
int end=s->offB+s->lengthB-1;
immWrite(11,(end>>5)&0xff);
immWrite(12,(end>>13)&0xff);
immWrite(8,2);
immWrite(11,(end>>2)&0xff);
immWrite(12,(end>>10)&0xff);
immWrite(7,(s->loopStart>=0)?0xb0:0xa0); // start/repeat
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].note=c.value;
@ -769,12 +769,12 @@ int DivPlatformOPL::dispatch(DivCommand c) {
break;
}
DivSample* s=parent->getSample(12*sampleBank+c.value%12);
immWrite(8,0);
immWrite(9,(s->offB>>2)&0xff);
immWrite(10,(s->offB>>10)&0xff);
int end=s->offB+s->lengthB-1;
immWrite(11,(end>>2)&0xff);
immWrite(12,(end>>10)&0xff);
immWrite(8,2);
immWrite(7,(s->loopStart>=0)?0xb0:0xa0); // start/repeat
int freq=(65536.0*(double)s->rate)/(double)rate;
immWrite(16,freq&0xff);
@ -1703,7 +1703,7 @@ int DivPlatformOPL::init(DivEngine* p, int channels, int sugRate, unsigned int f
adpcmBMemLen=0;
iface.adpcmBMem=adpcmBMem;
iface.sampleBank=0;
adpcmB=new ymfm::adpcm_b_engine(iface,5);
adpcmB=new ymfm::adpcm_b_engine(iface,2);
}
reset();