CPU: Add low-power PPTC load mode.

Specifically, this setting causes the translation load core count to get reduced by two-thirds, for lower-power but still fast loading, and for unstable CPUs.

src/Ryujinx/AppHost.cs

@@ -406,6 +406,8 @@ namespace Ryujinx.Ava
 
         public void Start()
         {
+            ARMeilleure.Optimizations.EcoFriendly = ConfigurationState.Instance.System.EnableLowPowerPtc;
+
             if (OperatingSystem.IsWindows())
             {
                 _windowsMultimediaTimerResolution = new WindowsMultimediaTimerResolution(1);

src/Ryujinx/UI/ViewModels/SettingsViewModel.cs

@@ -150,6 +150,7 @@ namespace Ryujinx.Ava.UI.ViewModels
         public bool EnableMouse { get; set; }
         public bool EnableVsync { get; set; }
         public bool EnablePptc { get; set; }
+        public bool EnableLowPowerPptc { get; set; }
         public bool EnableInternetAccess { get; set; }
         public bool EnableFsIntegrityChecks { get; set; }
         public bool IgnoreMissingServices { get; set; }
@@ -448,6 +449,7 @@ namespace Ryujinx.Ava.UI.ViewModels
 
             // CPU
             EnablePptc = config.System.EnablePtc;
+            EnableLowPowerPptc = config.System.EnableLowPowerPtc;
             MemoryMode = (int)config.System.MemoryManagerMode.Value;
             UseHypervisor = config.System.UseHypervisor;
 
@@ -548,6 +550,7 @@ namespace Ryujinx.Ava.UI.ViewModels
 
             // CPU
             config.System.EnablePtc.Value = EnablePptc;
+            config.System.EnableLowPowerPtc.Value = EnableLowPowerPptc;
             config.System.MemoryManagerMode.Value = (MemoryManagerMode)MemoryMode;
             config.System.UseHypervisor.Value = UseHypervisor;
 

src/Ryujinx/UI/Views/Settings/SettingsCPUView.axaml

@@ -1,4 +1,4 @@
-<UserControl
+<UserControl
     x:Class="Ryujinx.Ava.UI.Views.Settings.SettingsCPUView"
     xmlns="https://github.com/avaloniaui"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
@@ -32,6 +32,10 @@
                         <TextBlock Text="{locale:Locale SettingsTabSystemEnablePptc}"
                                    ToolTip.Tip="{locale:Locale PptcToggleTooltip}" />
                     </CheckBox>
+                    <CheckBox IsChecked="{Binding EnableLowPowerPptc}">
+                        <TextBlock Text="Low-power PPTC cache"
+                                   ToolTip.Tip="Load the PPTC cache using a third of the amount of cores." />
+                    </CheckBox>
                 </StackPanel>
                 <Separator Height="1" />
                 <TextBlock Classes="h1" Text="{locale:Locale SettingsTabCpuMemory}" />