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implement operator muting for ExtCh mode

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tildearrow 2022-09-12 00:51:09 -05:00
parent 7b1713758b
commit d64e20e859
10 changed files with 40 additions and 24 deletions
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9
src/engine/platform/ym2608ext.cpp
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@ -59,6 +59,7 @@ int DivPlatformYM2608Ext::dispatch(DivCommand c) {
rWrite(baseAddr+0x70,op.d2r&31);
rWrite(baseAddr+0x80,(op.rr&15)|(op.sl<<4));
rWrite(baseAddr+0x90,op.ssgEnv&15);
opChan[ch].mask=op.enable;
}
if (opChan[ch].insChanged) { // TODO how does this work?
rWrite(chanOffs[2]+0xb0,(ins->fm.alg&7)|(ins->fm.fb<<3));
@ -358,7 +359,7 @@ void DivPlatformYM2608Ext::tick(bool sysTick) {
bool writeSomething=false;
unsigned char writeMask=2;
for (int i=0; i<4; i++) {
writeMask|=opChan[i].active<<(4+i);
writeMask|=(unsigned char)(opChan[i].mask && opChan[i].active)<<(4+i);
if (opChan[i].keyOn || opChan[i].keyOff) {
writeSomething=true;
writeMask&=~(1<<(4+i));
@ -395,10 +396,12 @@ void DivPlatformYM2608Ext::tick(bool sysTick) {
immWrite(opChanOffsH[i],opChan[i].freq>>8);
immWrite(opChanOffsL[i],opChan[i].freq&0xff);
}
writeMask|=opChan[i].active<<(4+i);
writeMask|=(unsigned char)(opChan[i].mask && opChan[i].active)<<(4+i);
if (opChan[i].keyOn) {
writeNoteOn=true;
writeMask|=1<<(4+i);
if (opChan[i].mask) {
writeMask|=1<<(4+i);
}
opChan[i].keyOn=false;
}
}