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Merge pull request #188 from TomHarte/AYFidelity

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Switches to guessing that the AY doesn't reset its dividers upon frequency changes
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Thomas Harte 2017-08-11 14:50:11 -04:00 committed by GitHub
commit 1e4f9d4eda
1 changed files with 4 additions and 4 deletions
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8
Components/AY38910/AY38910.cpp
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@ -188,23 +188,23 @@ void AY38910::set_register_value(uint8_t value) {
tone_periods_[channel] = (tone_periods_[channel] & 0xff) | (uint16_t)((value&0xf) << 8); tone_periods_[channel] = (tone_periods_[channel] & 0xff) | (uint16_t)((value&0xf) << 8);
else else
tone_periods_[channel] = (tone_periods_[channel] & ~0xff) | value; tone_periods_[channel] = (tone_periods_[channel] & ~0xff) | value;
tone_counters_[channel] = tone_periods_[channel]; // tone_counters_[channel] = tone_periods_[channel];
} }
break; break;
case 6: case 6:
noise_period_ = value & 0x1f; noise_period_ = value & 0x1f;
noise_counter_ = noise_period_; // noise_counter_ = noise_period_;
break; break;
case 11: case 11:
envelope_period_ = (envelope_period_ & ~0xff) | value; envelope_period_ = (envelope_period_ & ~0xff) | value;
envelope_divider_ = envelope_period_; // envelope_divider_ = envelope_period_;
break; break;
case 12: case 12:
envelope_period_ = (envelope_period_ & 0xff) | (int)(value << 8); envelope_period_ = (envelope_period_ & 0xff) | (int)(value << 8);
envelope_divider_ = envelope_period_; // envelope_divider_ = envelope_period_;
break; break;
case 13: case 13: