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Merge pull request #968 from TomHarte/DaveAudio

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Dave: apply ring modulation during sync, too.
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Thomas Harte 2021-07-06 23:41:37 -04:00 committed by GitHub
commit c6fcd9a1eb
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2 changed files with 18 additions and 17 deletions
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2
Analyser/Static/Enterprise/StaticAnalyser.cpp
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@ -67,7 +67,7 @@ Analyser::Static::TargetList Analyser::Static::Enterprise::GetTargets(const Medi
if(!has_exdos_ini) {
if(did_pick_file) {
target->loading_command = std::string("run \"") + selected_file->name + "." + selected_file->extension + "\"";
target->loading_command = std::string("run \"") + selected_file->name + "." + selected_file->extension + "\"\n";
} else {
target->loading_command = ":dir\n";
}

33
Machines/Enterprise/Dave.cpp
View File

@ -69,30 +69,31 @@ void Audio::set_sample_volume_range(int16_t range) {
}
void Audio::update_channel(int c) {
if(channels_[c].sync) {
channels_[c].count = channels_[c].reload;
channels_[c].output <<= 1;
return;
}
auto output = channels_[c].output & 1;
channels_[c].output <<= 1;
if(!channels_[c].count) {
if(channels_[c].sync) {
channels_[c].count = channels_[c].reload;
output = 0;
} else {
if(!channels_[c].count) {
channels_[c].count = channels_[c].reload;
if(channels_[c].distortion == Channel::Distortion::None)
output ^= 1;
else
output = poly_state_[int(channels_[c].distortion)];
if(channels_[c].distortion == Channel::Distortion::None)
output ^= 1;
else
output = poly_state_[int(channels_[c].distortion)];
} else {
--channels_[c].count;
}
if(channels_[c].high_pass && (channels_[(c+1)%3].output&3) == 2) {
output = 0;
}
if(channels_[c].ring_modulate) {
output = ~(output ^ channels_[(c+2)%3].output) & 1;
}
} else {
--channels_[c].count;
}
// Ring modulation applies even when sync is enabled, per SIDBasic.
if(channels_[c].ring_modulate) {
output = ~(output ^ channels_[(c+2)%3].output) & 1;
}
channels_[c].output |= output;