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dev87 - C64 changes

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issue #335
This commit is contained in:
tildearrow 2022-04-25 17:55:48 -05:00
parent 8ba2787160
commit 2a952b1a66
7 changed files with 57 additions and 14 deletions
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4
src/engine/platform/c64.cpp
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@ -131,7 +131,7 @@ void DivPlatformC64::tick(bool sysTick) {
if (ins->c64.filterIsAbs) {
filtCut=MIN(2047,chan[i].std.vol.val);
} else {
filtCut-=((signed char)chan[i].std.vol.val-18)*7;
filtCut-=((signed char)chan[i].std.vol.val)*7;
if (filtCut>2047) filtCut=2047;
if (filtCut<0) filtCut=0;
}
@ -161,7 +161,7 @@ void DivPlatformC64::tick(bool sysTick) {
if (ins->c64.dutyIsAbs) {
chan[i].duty=chan[i].std.duty.val;
} else {
chan[i].duty-=((signed char)chan[i].std.duty.val-12)*4;
chan[i].duty-=((signed char)chan[i].std.duty.val)*4;
}
rWrite(i*7+2,chan[i].duty&0xff);
rWrite(i*7+3,chan[i].duty>>8);