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k051649: more logical channel halt

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This commit is contained in:
hap 2023-07-06 15:52:50 +02:00
parent e1cd6bc09b
commit e625a977c1
1 changed files with 12 additions and 8 deletions
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20
src/devices/sound/k051649.cpp
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@ -137,20 +137,24 @@ void k051649_device::sound_stream_update(sound_stream &stream, std::vector<read_
{
for (sound_channel &voice : m_channel_list)
{
// channel is halted for freq < 9
if (voice.frequency > 8)
if (--voice.clock < 0)
{
if (--voice.clock < 0)
// channel is halted for freq < 9
if (voice.frequency < 9)
{
voice.clock = 0;
continue;
}
else
{
voice.counter = (voice.counter + 1) & 0x1f;
voice.clock = voice.frequency;
}
// scale to 11 bit digital output on chip
if (voice.key)
outputs[0].add_int(i, (voice.waveram[voice.counter] * voice.volume) >> 4, 1024);
}
else if (voice.clock > 0)
voice.clock--;
// scale to 11 bit digital output on chip
if (voice.key)
outputs[0].add_int(i, (voice.waveram[voice.counter] * voice.volume) >> 4, 1024);
}
}
}