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Corrects SCC volume errors.

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Which were leading to substantial overflow.
This commit is contained in:
Thomas Harte 2018-01-07 09:59:00 -05:00
parent 57ddfcd645
commit 2ffde4c3c2
2 changed files with 4 additions and 3 deletions
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6
Components/KonamiSCC/KonamiSCC.cpp
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@ -73,7 +73,7 @@ void SCC::write(uint16_t address, uint8_t value) {
} break;
case 0x8a: case 0x8b: case 0x8c: case 0x8d: case 0x8e:
channels_[address - 0x8a].amplitude = value;
channels_[address - 0x8a].amplitude = value & 0xf;
break;
case 0x8f:
@ -88,13 +88,13 @@ void SCC::write(uint16_t address, uint8_t value) {
void SCC::evaluate_output_volume() {
output_volume_ =
static_cast<int16_t>(
((
(
(channel_enable_ & 0x01) ? static_cast<int8_t>(waves_[0].samples[channels_[0].offset]) * channels_[0].amplitude : 0 +
(channel_enable_ & 0x02) ? static_cast<int8_t>(waves_[1].samples[channels_[1].offset]) * channels_[1].amplitude : 0 +
(channel_enable_ & 0x04) ? static_cast<int8_t>(waves_[2].samples[channels_[2].offset]) * channels_[2].amplitude : 0 +
(channel_enable_ & 0x08) ? static_cast<int8_t>(waves_[3].samples[channels_[3].offset]) * channels_[3].amplitude : 0 +
(channel_enable_ & 0x10) ? static_cast<int8_t>(waves_[3].samples[channels_[4].offset]) * channels_[4].amplitude : 0
) * 16) / 5
)
);
}

1
OSBindings/Mac/Clock Signal.xcodeproj/xcshareddata/xcschemes/Clock Signal.xcscheme
View File

@ -72,6 +72,7 @@
buildConfiguration = "Debug"
selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
enableASanStackUseAfterReturn = "YES"
disableMainThreadChecker = "YES"
language = ""
launchStyle = "0"