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fix 601x-604x

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This commit is contained in:
tildearrow 2024-08-28 17:07:05 -05:00
parent 62842fbb39
commit 87b172015c
6 changed files with 84 additions and 6 deletions
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15
src/engine/platform/arcade.cpp
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@ -762,7 +762,20 @@ int DivPlatformArcade::dispatch(DivCommand c) {
break;
}
case DIV_CMD_FM_OPMASK:
chan[c.chan].opMask=c.value&15;
switch (c.value>>4) {
case 1:
case 2:
case 3:
case 4:
chan[c.chan].opMask&=~(1<<((c.value>>4)-1));
if (c.value&15) {
chan[c.chan].opMask|=(1<<((c.value>>4)-1));
}
break;
default:
chan[c.chan].opMask=c.value&15;
break;
}
if (chan[c.chan].active) {
chan[c.chan].opMaskChanged=true;
}