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OPN[A/B/2]?: implement 18xx effect

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This commit is contained in:
tildearrow 2022-06-28 01:16:46 -05:00
parent e2449d91f1
commit f483292a88
11 changed files with 92 additions and 5 deletions
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7
src/engine/platform/ym2203.cpp
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@ -659,6 +659,13 @@ int DivPlatformYM2203::dispatch(DivCommand c) {
chan[c.chan].freqChanged=true;
break;
}
case DIV_CMD_FM_EXTCH: {
if (extSys) {
extMode=c.value;
immWrite(0x27,extMode?0x40:0);
}
break;
}
case DIV_CMD_FM_FB: {
if (c.chan>2) break;
chan[c.chan].state.fb=c.value&7;