dynarmic: Add option to disable CPU JIT optimizations

src/core/arm/dynarmic/arm_dynarmic_64.cpp

@@ -20,6 +20,7 @@
 #include "core/hle/kernel/scheduler.h"
 #include "core/hle/kernel/svc.h"
 #include "core/memory.h"
+#include "core/settings.h"
 
 namespace Core {
 
@@ -144,6 +145,8 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable&
     config.page_table_address_space_bits = address_space_bits;
     config.silently_mirror_page_table = false;
     config.absolute_offset_page_table = true;
+    config.detect_misaligned_access_via_page_table = 16 | 32 | 64 | 128;
+    config.only_detect_misalignment_via_page_table_on_page_boundary = true;
 
     // Multi-process state
     config.processor_id = core_index;
@@ -159,8 +162,11 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable&
     // Unpredictable instructions
     config.define_unpredictable_behaviour = true;
 
-    config.detect_misaligned_access_via_page_table = 16 | 32 | 64 | 128;
-    config.only_detect_misalignment_via_page_table_on_page_boundary = true;
+    // Optimizations
+    if (Settings::values.disable_cpu_opt) {
+        config.enable_optimizations = false;
+        config.enable_fast_dispatch = false;
+    }
 
     return std::make_shared<Dynarmic::A64::Jit>(config);
 }

src/core/settings.h

@@ -464,6 +464,7 @@ struct Values {
     bool dump_nso;
     bool reporting_services;
     bool quest_flag;
+    bool disable_cpu_opt;
 
     // BCAT
     std::string bcat_backend;

src/yuzu/configuration/config.cpp

@@ -532,6 +532,8 @@ void Config::ReadDebuggingValues() {
     Settings::values.reporting_services =
         ReadSetting(QStringLiteral("reporting_services"), false).toBool();
     Settings::values.quest_flag = ReadSetting(QStringLiteral("quest_flag"), false).toBool();
+    Settings::values.disable_cpu_opt =
+        ReadSetting(QStringLiteral("disable_cpu_opt"), false).toBool();
 
     qt_config->endGroup();
 }
@@ -1001,6 +1003,7 @@ void Config::SaveDebuggingValues() {
     WriteSetting(QStringLiteral("dump_exefs"), Settings::values.dump_exefs, false);
     WriteSetting(QStringLiteral("dump_nso"), Settings::values.dump_nso, false);
     WriteSetting(QStringLiteral("quest_flag"), Settings::values.quest_flag, false);
+    WriteSetting(QStringLiteral("disable_cpu_opt"), Settings::values.disable_cpu_opt, false);
 
     qt_config->endGroup();
 }

src/yuzu/configuration/configure_debug.cpp

@@ -36,6 +36,7 @@ void ConfigureDebug::SetConfiguration() {
     ui->homebrew_args_edit->setText(QString::fromStdString(Settings::values.program_args));
     ui->reporting_services->setChecked(Settings::values.reporting_services);
     ui->quest_flag->setChecked(Settings::values.quest_flag);
+    ui->disable_cpu_opt->setChecked(Settings::values.disable_cpu_opt);
     ui->enable_graphics_debugging->setEnabled(!Core::System::GetInstance().IsPoweredOn());
     ui->enable_graphics_debugging->setChecked(Settings::values.renderer_debug);
 }
@@ -48,6 +49,7 @@ void ConfigureDebug::ApplyConfiguration() {
     Settings::values.program_args = ui->homebrew_args_edit->text().toStdString();
     Settings::values.reporting_services = ui->reporting_services->isChecked();
     Settings::values.quest_flag = ui->quest_flag->isChecked();
+    Settings::values.disable_cpu_opt = ui->disable_cpu_opt->isChecked();
     Settings::values.renderer_debug = ui->enable_graphics_debugging->isChecked();
     Debugger::ToggleConsole();
     Log::Filter filter;

src/yuzu/configuration/configure_debug.ui

@@ -215,6 +215,13 @@
         </property>
        </widget>
       </item>
+      <item>
+       <widget class="QCheckBox" name="disable_cpu_opt">
+        <property name="text">
+         <string>Disable CPU JIT optimizations</string>
+        </property>
+       </widget>
+      </item>
      </layout>
     </widget>
    </item>

src/yuzu_cmd/config.cpp

@@ -425,6 +425,8 @@ void Config::ReadValues() {
     Settings::values.reporting_services =
         sdl2_config->GetBoolean("Debugging", "reporting_services", false);
     Settings::values.quest_flag = sdl2_config->GetBoolean("Debugging", "quest_flag", false);
+    Settings::values.disable_cpu_opt =
+        sdl2_config->GetBoolean("Debugging", "disable_cpu_opt", false);
 
     const auto title_list = sdl2_config->Get("AddOns", "title_ids", "");
     std::stringstream ss(title_list);

src/yuzu_cmd/default_ini.h

@@ -280,6 +280,9 @@ dump_nso=false
 # Determines whether or not yuzu will report to the game that the emulated console is in Kiosk Mode
 # false: Retail/Normal Mode (default), true: Kiosk Mode
 quest_flag =
+# Determines whether or not JIT CPU optimizations are enabled
+# false: Optimizations Enabled, true: Optimizations Disabled
+disable_cpu_opt =
 
 [WebService]
 # Whether or not to enable telemetry