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OPN: ExtCh FMS/AMS effects

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This commit is contained in:
tildearrow 2025-05-21 17:10:40 -05:00
parent 981e798519
commit ec1542a2b4
4 changed files with 102 additions and 62 deletions
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10
src/engine/platform/ym2608ext.cpp
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@ -223,6 +223,16 @@ int DivPlatformYM2608Ext::dispatch(DivCommand c) {
rWrite(chanOffs[2]+ADDR_FB_ALG,(chan[2].state.alg&7)|(chan[2].state.fb<<3));
break;
}
case DIV_CMD_FM_FMS: {
chan[extChanOffs].state.fms=c.value&7;
rWrite(chanOffs[extChanOffs]+0xb4,(IS_EXTCH_MUTED?0:(opChan[ch].pan<<6))|(chan[extChanOffs].state.fms&7)|((chan[extChanOffs].state.ams&3)<<4));
break;
}
case DIV_CMD_FM_AMS: {
chan[extChanOffs].state.ams=c.value&3;
rWrite(chanOffs[extChanOffs]+0xb4,(IS_EXTCH_MUTED?0:(opChan[ch].pan<<6))|(chan[extChanOffs].state.fms&7)|((chan[extChanOffs].state.ams&3)<<4));
break;
}
case DIV_CMD_FM_MULT: {
unsigned short baseAddr=chanOffs[2]|opOffs[orderedOps[c.value]];
DivInstrumentFM::Operator& op=chan[2].state.op[orderedOps[c.value]];