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C64: fix frequency overflow

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tildearrow 2023-01-13 01:10:57 -05:00
parent f939878fcb
commit 7b14175e45
1 changed files with 2 additions and 1 deletions
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3
src/engine/platform/c64.cpp
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@ -148,7 +148,7 @@ void DivPlatformC64::tick(bool sysTick) {
if (chan[i].std.pitch.had) { if (chan[i].std.pitch.had) {
if (chan[i].std.pitch.mode) { if (chan[i].std.pitch.mode) {
chan[i].pitch2+=chan[i].std.pitch.val; chan[i].pitch2+=chan[i].std.pitch.val;
CLAMP_VAR(chan[i].pitch2,-32768,32767); CLAMP_VAR(chan[i].pitch2,-65535,65535);
} else { } else {
chan[i].pitch2=chan[i].std.pitch.val; chan[i].pitch2=chan[i].std.pitch.val;
} }
@ -188,6 +188,7 @@ void DivPlatformC64::tick(bool sysTick) {
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) { if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,false,8,chan[i].pitch2,chipClock,CHIP_FREQBASE); chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,false,8,chan[i].pitch2,chipClock,CHIP_FREQBASE);
if (chan[i].freq<0) chan[i].freq=0;
if (chan[i].freq>0xffff) chan[i].freq=0xffff; if (chan[i].freq>0xffff) chan[i].freq=0xffff;
if (chan[i].keyOn) { if (chan[i].keyOn) {
rWrite(i*7+5,(chan[i].attack<<4)|(chan[i].decay)); rWrite(i*7+5,(chan[i].attack<<4)|(chan[i].decay));