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AY: add envelope and auto-envelope macros

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This commit is contained in:
tildearrow 2022-01-27 15:31:48 -05:00
parent ab38377bc5
commit 30b553e87e
4 changed files with 53 additions and 3 deletions
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14
src/engine/platform/ay8930.cpp
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@ -92,6 +92,20 @@ void DivPlatformAY8930::tick() {
if (chan[i].std.hadEx1) { // duty
rWrite(0x16+i,chan[i].std.ex1);
}
if (chan[i].std.hadEx2) {
ayEnvMode[i]=chan[i].std.ex2;
rWrite(regMode[i],ayEnvMode[i]);
}
if (chan[i].std.hadEx3) {
chan[i].autoEnvNum=chan[i].std.ex3;
chan[i].freqChanged=true;
if (!chan[i].std.willAlg) chan[i].autoEnvDen=1;
}
if (chan[i].std.hadAlg) {
chan[i].autoEnvDen=chan[i].std.alg;
chan[i].freqChanged=true;
if (!chan[i].std.willEx3) chan[i].autoEnvNum=1;
}
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,true);
if (chan[i].freq>4095) chan[i].freq=4095;