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DIV_CMD_FM_ALG for OPM/OPN/OPZ

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tildearrow 2025-05-21 04:46:11 -05:00
parent 64f4db3ab8
commit 78fb9c4df5
7 changed files with 133 additions and 4 deletions
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20
src/engine/platform/arcade.cpp
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@ -601,6 +601,26 @@ int DivPlatformArcade::dispatch(DivCommand c) {
rWrite(0x1b,c.value&3);
break;
}
case DIV_CMD_FM_ALG: {
chan[c.chan].state.alg=c.value&7;
if (isMuted[c.chan]) {
rWrite(chanOffs[c.chan]+ADDR_LR_FB_ALG,(chan[c.chan].state.alg&7)|(chan[c.chan].state.fb<<3));
} else {
rWrite(chanOffs[c.chan]+ADDR_LR_FB_ALG,(chan[c.chan].state.alg&7)|(chan[c.chan].state.fb<<3)|((chan[c.chan].chVolL&1)<<6)|((chan[c.chan].chVolR&1)<<7));
}
for (int i=0; i<4; i++) {
unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
if (!op.enable) {
rWrite(baseAddr+ADDR_TL,127);
} else if (KVS(c.chan,i)) {
rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
} else {
rWrite(baseAddr+ADDR_TL,op.tl);
}
}
break;
}
case DIV_CMD_FM_FB: {
chan[c.chan].state.fb=c.value&7;
if (isMuted[c.chan]) {