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dev94 - add a full linear pitch mode, part 1

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This commit is contained in:
tildearrow 2022-05-10 03:51:18 -05:00
parent 5e14177e4e
commit 8784fe5664
33 changed files with 123 additions and 89 deletions
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3
src/engine/platform/vera.cpp
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@ -147,6 +147,7 @@ void DivPlatformVERA::reset() {
chan[16].pan=3;
}
// TODO: linear pitch stuff
int DivPlatformVERA::calcNoteFreq(int ch, int note) {
if (ch<16) {
return parent->calcBaseFreq(chipClock,2097152,note,false);
@ -208,7 +209,7 @@ void DivPlatformVERA::tick(bool sysTick) {
chan[i].freqChanged=true;
}
if (chan[i].freqChanged) {
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,8,chan[i].pitch2);
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,8,chan[i].pitch2,chipClock,2097152);
if (chan[i].freq>65535) chan[i].freq=65535;
rWrite(i,0,chan[i].freq&0xff);
rWrite(i,1,(chan[i].freq>>8)&0xff);