vk_compute_pass: Use VK_ACCESS_NONE

This enumeration was introduced in Vulkan 1.3, prefer using this instead of defaulting the enum.

Also resolves a narrowing conversion warning on MSVC.

dist/qt_themes/default/style.qss

@@ -58,6 +58,19 @@ QPushButton#GPUStatusBarButton:!checked {
     color: #109010;
 }
 
+QPushButton#DockingStatusBarButton {
+    min-width: 0px;
+    color: #000000;
+    border: 1px solid transparent;
+    background-color: transparent;
+    padding: 0px 3px 0px 3px;
+    text-align: center;
+}
+
+QPushButton#DockingStatusBarButton:hover {
+    border: 1px solid #76797C;
+}
+
 QPushButton#buttonRefreshDevices {
     min-width: 21px;
     min-height: 21px;

dist/qt_themes/qdarkstyle/style.qss

@@ -1304,6 +1304,19 @@ QPushButton#GPUStatusBarButton:!checked {
     color: #40dd40;
 }
 
+QPushButton#DockingStatusBarButton {
+    min-width: 0px;
+    color: #ffffff;
+    border: 1px solid transparent;
+    background-color: transparent;
+    padding: 0px 3px 0px 3px;
+    text-align: center;
+}
+
+QPushButton#DockingStatusBarButton:hover {
+    border: 1px solid #76797C;
+}
+
 QPushButton#buttonRefreshDevices {
     min-width: 23px;
     min-height: 23px;

dist/qt_themes/qdarkstyle_midnight_blue/style.qss

@@ -2207,6 +2207,19 @@ QPushButton#GPUStatusBarButton:!checked {
   color: #40dd40;
 }
 
+QPushButton#DockingStatusBarButton {
+    min-width: 0px;
+    color: #ffffff;
+    border: 1px solid transparent;
+    background-color: transparent;
+    padding: 0px 3px 0px 3px;
+    text-align: center;
+}
+
+QPushButton#DockingStatusBarButton:hover {
+    border: 1px solid #76797C;
+}
+
 QPushButton#buttonRefreshDevices {
   min-width: 19px;
   min-height: 19px;

externals/CMakeLists.txt

@@ -40,6 +40,11 @@ target_include_directories(mbedtls PUBLIC ./mbedtls/include)
 add_library(microprofile INTERFACE)
 target_include_directories(microprofile INTERFACE ./microprofile)
 
+# GCC bugs
+if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "12" AND CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND MINGW)
+    target_compile_options(microprofile INTERFACE "-Wno-array-bounds")
+endif()
+
 # libusb
 if (NOT LIBUSB_FOUND OR YUZU_USE_BUNDLED_LIBUSB)
     add_subdirectory(libusb)

src/audio_core/command_generator.cpp

@@ -429,7 +429,7 @@ void CommandGenerator::GenerateDataSourceCommand(ServerVoiceInfo& voice_info, Vo
                                   in_params.node_id);
             break;
         default:
-            UNREACHABLE_MSG("Unimplemented sample format={}", in_params.sample_format);
+            ASSERT_MSG(false, "Unimplemented sample format={}", in_params.sample_format);
         }
     }
 }
@@ -1312,7 +1312,7 @@ void CommandGenerator::DecodeFromWaveBuffers(ServerVoiceInfo& voice_info, std::s
                                 samples_to_read - samples_read, channel, temp_mix_offset);
                 break;
             default:
-                UNREACHABLE_MSG("Unimplemented sample format={}", in_params.sample_format);
+                ASSERT_MSG(false, "Unimplemented sample format={}", in_params.sample_format);
             }
 
             temp_mix_offset += samples_decoded;

src/audio_core/effect_context.cpp

@@ -50,7 +50,7 @@ EffectBase* EffectContext::RetargetEffect(std::size_t i, EffectType effect) {
         effects[i] = std::make_unique<EffectBiquadFilter>();
         break;
     default:
-        UNREACHABLE_MSG("Unimplemented effect {}", effect);
+        ASSERT_MSG(false, "Unimplemented effect {}", effect);
         effects[i] = std::make_unique<EffectStubbed>();
     }
     return GetInfo(i);
@@ -104,7 +104,7 @@ void EffectI3dl2Reverb::Update(EffectInfo::InParams& in_params) {
     auto& params = GetParams();
     const auto* reverb_params = reinterpret_cast<I3dl2ReverbParams*>(in_params.raw.data());
     if (!ValidChannelCountForEffect(reverb_params->max_channels)) {
-        UNREACHABLE_MSG("Invalid reverb max channel count {}", reverb_params->max_channels);
+        ASSERT_MSG(false, "Invalid reverb max channel count {}", reverb_params->max_channels);
         return;
     }
 

src/audio_core/splitter_context.cpp

@@ -483,7 +483,7 @@ bool NodeStates::DepthFirstSearch(EdgeMatrix& edge_matrix) {
                     // Add more work
                     index_stack.push(j);
                 } else if (node_state == NodeStates::State::InFound) {
-                    UNREACHABLE_MSG("Node start marked as found");
+                    ASSERT_MSG(false, "Node start marked as found");
                     ResetState();
                     return false;
                 }

src/audio_core/voice_context.cpp

@@ -114,7 +114,7 @@ void ServerVoiceInfo::UpdateParameters(const VoiceInfo::InParams& voice_in,
         in_params.current_playstate = ServerPlayState::Play;
         break;
     default:
-        UNREACHABLE_MSG("Unknown playstate {}", voice_in.play_state);
+        ASSERT_MSG(false, "Unknown playstate {}", voice_in.play_state);
         break;
     }
 
@@ -410,7 +410,7 @@ bool ServerVoiceInfo::UpdateParametersForCommandGeneration(
         return in_params.should_depop;
     }
     default:
-        UNREACHABLE_MSG("Invalid playstate {}", in_params.current_playstate);
+        ASSERT_MSG(false, "Invalid playstate {}", in_params.current_playstate);
     }
 
     return false;

src/common/assert.cpp

@@ -6,8 +6,13 @@
 
 #include "common/settings.h"
 
-void assert_handle_failure() {
+void assert_fail_impl() {
     if (Settings::values.use_debug_asserts) {
         Crash();
     }
 }
+
+[[noreturn]] void unreachable_impl() {
+    Crash();
+    throw std::runtime_error("Unreachable code");
+}

src/common/assert.h

@@ -9,44 +9,43 @@
 // Sometimes we want to try to continue even after hitting an assert.
 // However touching this file yields a global recompilation as this header is included almost
 // everywhere. So let's just move the handling of the failed assert to a single cpp file.
-void assert_handle_failure();
 
-// For asserts we'd like to keep all the junk executed when an assert happens away from the
-// important code in the function. One way of doing this is to put all the relevant code inside a
-// lambda and force the compiler to not inline it. Unfortunately, MSVC seems to have no syntax to
-// specify __declspec on lambda functions, so what we do instead is define a noinline wrapper
-// template that calls the lambda. This seems to generate an extra instruction at the call-site
-// compared to the ideal implementation (which wouldn't support ASSERT_MSG parameters), but is good
-// enough for our purposes.
-template <typename Fn>
-#if defined(_MSC_VER)
-[[msvc::noinline]]
-#elif defined(__GNUC__)
-[[gnu::cold, gnu::noinline]]
+void assert_fail_impl();
+[[noreturn]] void unreachable_impl();
+
+#ifdef _MSC_VER
+#define YUZU_NO_INLINE __declspec(noinline)
+#else
+#define YUZU_NO_INLINE __attribute__((noinline))
 #endif
-static void
-assert_noinline_call(const Fn& fn) {
-    fn();
-    assert_handle_failure();
-}
 
 #define ASSERT(_a_)                                                                                \
-    do                                                                                             \
-        if (!(_a_)) {                                                                              \
-            assert_noinline_call([] { LOG_CRITICAL(Debug, "Assertion Failed!"); });                \
+    ([&]() YUZU_NO_INLINE {                                                                        \
+        if (!(_a_)) [[unlikely]] {                                                                 \
+            LOG_CRITICAL(Debug, "Assertion Failed!");                                              \
+            assert_fail_impl();                                                                    \
         }                                                                                          \
-    while (0)
+    }())
 
 #define ASSERT_MSG(_a_, ...)                                                                       \
-    do                                                                                             \
-        if (!(_a_)) {                                                                              \
-            assert_noinline_call([&] { LOG_CRITICAL(Debug, "Assertion Failed!\n" __VA_ARGS__); }); \
+    ([&]() YUZU_NO_INLINE {                                                                        \
+        if (!(_a_)) [[unlikely]] {                                                                 \
+            LOG_CRITICAL(Debug, "Assertion Failed!\n" __VA_ARGS__);                                \
+            assert_fail_impl();                                                                    \
         }                                                                                          \
-    while (0)
+    }())
+
+#define UNREACHABLE()                                                                              \
+    do {                                                                                           \
+        LOG_CRITICAL(Debug, "Unreachable code!");                                                  \
+        unreachable_impl();                                                                        \
+    } while (0)
 
-#define UNREACHABLE() assert_noinline_call([] { LOG_CRITICAL(Debug, "Unreachable code!"); })
 #define UNREACHABLE_MSG(...)                                                                       \
-    assert_noinline_call([&] { LOG_CRITICAL(Debug, "Unreachable code!\n" __VA_ARGS__); })
+    do {                                                                                           \
+        LOG_CRITICAL(Debug, "Unreachable code!\n" __VA_ARGS__);                                    \
+        unreachable_impl();                                                                        \
+    } while (0)
 
 #ifdef _DEBUG
 #define DEBUG_ASSERT(_a_) ASSERT(_a_)

src/common/bounded_threadsafe_queue.h

@@ -0,0 +1,180 @@
+// SPDX-FileCopyrightText: Copyright (c) 2020 Erik Rigtorp <erik@rigtorp.se>
+// SPDX-License-Identifier: MIT
+#pragma once
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable : 4324)
+#endif
+
+#include <atomic>
+#include <bit>
+#include <condition_variable>
+#include <memory>
+#include <mutex>
+#include <new>
+#include <stdexcept>
+#include <stop_token>
+#include <type_traits>
+#include <utility>
+
+namespace Common {
+namespace mpsc {
+#if defined(__cpp_lib_hardware_interference_size)
+constexpr size_t hardware_interference_size = std::hardware_destructive_interference_size;
+#else
+constexpr size_t hardware_interference_size = 64;
+#endif
+
+template <typename T>
+using AlignedAllocator = std::allocator<T>;
+
+template <typename T>
+struct Slot {
+    ~Slot() noexcept {
+        if (turn.test()) {
+            destroy();
+        }
+    }
+
+    template <typename... Args>
+    void construct(Args&&... args) noexcept {
+        static_assert(std::is_nothrow_constructible_v<T, Args&&...>,
+                      "T must be nothrow constructible with Args&&...");
+        std::construct_at(reinterpret_cast<T*>(&storage), std::forward<Args>(args)...);
+    }
+
+    void destroy() noexcept {
+        static_assert(std::is_nothrow_destructible_v<T>, "T must be nothrow destructible");
+        std::destroy_at(reinterpret_cast<T*>(&storage));
+    }
+
+    T&& move() noexcept {
+        return reinterpret_cast<T&&>(storage);
+    }
+
+    // Align to avoid false sharing between adjacent slots
+    alignas(hardware_interference_size) std::atomic_flag turn{};
+    struct aligned_store {
+        struct type {
+            alignas(T) unsigned char data[sizeof(T)];
+        };
+    };
+    typename aligned_store::type storage;
+};
+
+template <typename T, typename Allocator = AlignedAllocator<Slot<T>>>
+class Queue {
+public:
+    explicit Queue(const size_t capacity, const Allocator& allocator = Allocator())
+        : allocator_(allocator) {
+        if (capacity < 1) {
+            throw std::invalid_argument("capacity < 1");
+        }
+        // Ensure that the queue length is an integer power of 2
+        // This is so that idx(i) can be a simple i & mask_ insted of i % capacity
+        // https://github.com/rigtorp/MPMCQueue/pull/36
+        if (!std::has_single_bit(capacity)) {
+            throw std::invalid_argument("capacity must be an integer power of 2");
+        }
+
+        mask_ = capacity - 1;
+
+        // Allocate one extra slot to prevent false sharing on the last slot
+        slots_ = allocator_.allocate(mask_ + 2);
+        // Allocators are not required to honor alignment for over-aligned types
+        // (see http://eel.is/c++draft/allocator.requirements#10) so we verify
+        // alignment here
+        if (reinterpret_cast<uintptr_t>(slots_) % alignof(Slot<T>) != 0) {
+            allocator_.deallocate(slots_, mask_ + 2);
+            throw std::bad_alloc();
+        }
+        for (size_t i = 0; i < mask_ + 1; ++i) {
+            std::construct_at(&slots_[i]);
+        }
+        static_assert(alignof(Slot<T>) == hardware_interference_size,
+                      "Slot must be aligned to cache line boundary to prevent false sharing");
+        static_assert(sizeof(Slot<T>) % hardware_interference_size == 0,
+                      "Slot size must be a multiple of cache line size to prevent "
+                      "false sharing between adjacent slots");
+        static_assert(sizeof(Queue) % hardware_interference_size == 0,
+                      "Queue size must be a multiple of cache line size to "
+                      "prevent false sharing between adjacent queues");
+    }
+
+    ~Queue() noexcept {
+        for (size_t i = 0; i < mask_ + 1; ++i) {
+            slots_[i].~Slot();
+        }
+        allocator_.deallocate(slots_, mask_ + 2);
+    }
+
+    // non-copyable and non-movable
+    Queue(const Queue&) = delete;
+    Queue& operator=(const Queue&) = delete;
+
+    void Push(const T& v) noexcept {
+        static_assert(std::is_nothrow_copy_constructible_v<T>,
+                      "T must be nothrow copy constructible");
+        emplace(v);
+    }
+
+    template <typename P, typename = std::enable_if_t<std::is_nothrow_constructible_v<T, P&&>>>
+    void Push(P&& v) noexcept {
+        emplace(std::forward<P>(v));
+    }
+
+    void Pop(T& v, std::stop_token stop) noexcept {
+        auto const tail = tail_.fetch_add(1);
+        auto& slot = slots_[idx(tail)];
+        if (false == slot.turn.test()) {
+            std::unique_lock lock{cv_mutex};
+            cv.wait(lock, stop, [&slot] { return slot.turn.test(); });
+        }
+        v = slot.move();
+        slot.destroy();
+        slot.turn.clear();
+        slot.turn.notify_one();
+    }
+
+private:
+    template <typename... Args>
+    void emplace(Args&&... args) noexcept {
+        static_assert(std::is_nothrow_constructible_v<T, Args&&...>,
+                      "T must be nothrow constructible with Args&&...");
+        auto const head = head_.fetch_add(1);
+        auto& slot = slots_[idx(head)];
+        slot.turn.wait(true);
+        slot.construct(std::forward<Args>(args)...);
+        slot.turn.test_and_set();
+        cv.notify_one();
+    }
+
+    constexpr size_t idx(size_t i) const noexcept {
+        return i & mask_;
+    }
+
+    std::conditional_t<true, std::condition_variable_any, std::condition_variable> cv;
+    std::mutex cv_mutex;
+    size_t mask_;
+    Slot<T>* slots_;
+    [[no_unique_address]] Allocator allocator_;
+
+    // Align to avoid false sharing between head_ and tail_
+    alignas(hardware_interference_size) std::atomic<size_t> head_{0};
+    alignas(hardware_interference_size) std::atomic<size_t> tail_{0};
+
+    static_assert(std::is_nothrow_copy_assignable_v<T> || std::is_nothrow_move_assignable_v<T>,
+                  "T must be nothrow copy or move assignable");
+
+    static_assert(std::is_nothrow_destructible_v<T>, "T must be nothrow destructible");
+};
+} // namespace mpsc
+
+template <typename T, typename Allocator = mpsc::AlignedAllocator<mpsc::Slot<T>>>
+using MPSCQueue = mpsc::Queue<T, Allocator>;
+
+} // namespace Common
+
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif

src/common/settings.cpp

@@ -147,7 +147,7 @@ void UpdateRescalingInfo() {
         info.down_shift = 0;
         break;
     default:
-        UNREACHABLE();
+        ASSERT(false);
         info.up_scale = 1;
         info.down_shift = 0;
     }

src/common/settings.h

@@ -496,7 +496,7 @@ struct Values {
 
     // Renderer
     RangedSetting<RendererBackend> renderer_backend{
-        RendererBackend::OpenGL, RendererBackend::OpenGL, RendererBackend::Vulkan, "backend"};
+        RendererBackend::Vulkan, RendererBackend::OpenGL, RendererBackend::Vulkan, "backend"};
     BasicSetting<bool> renderer_debug{false, "debug"};
     BasicSetting<bool> renderer_shader_feedback{false, "shader_feedback"};
     BasicSetting<bool> enable_nsight_aftermath{false, "nsight_aftermath"};

src/core/core.cpp

@@ -493,6 +493,12 @@ void System::Shutdown() {
     impl->Shutdown();
 }
 
+void System::DetachDebugger() {
+    if (impl->debugger) {
+        impl->debugger->NotifyShutdown();
+    }
+}
+
 std::unique_lock<std::mutex> System::StallCPU() {
     return impl->StallCPU();
 }

src/core/core.h

@@ -160,6 +160,9 @@ public:
     /// Shutdown the emulated system.
     void Shutdown();
 
+    /// Forcibly detach the debugger if it is running.
+    void DetachDebugger();
+
     std::unique_lock<std::mutex> StallCPU();
     void UnstallCPU();
 

src/core/cpu_manager.cpp

@@ -16,7 +16,8 @@
 
 namespace Core {
 
-CpuManager::CpuManager(System& system_) : system{system_} {}
+CpuManager::CpuManager(System& system_)
+    : pause_barrier{std::make_unique<Common::Barrier>(1)}, system{system_} {}
 CpuManager::~CpuManager() = default;
 
 void CpuManager::ThreadStart(std::stop_token stop_token, CpuManager& cpu_manager,
@@ -30,8 +31,10 @@ void CpuManager::Initialize() {
         for (std::size_t core = 0; core < Core::Hardware::NUM_CPU_CORES; core++) {
             core_data[core].host_thread = std::jthread(ThreadStart, std::ref(*this), core);
         }
+        pause_barrier = std::make_unique<Common::Barrier>(Core::Hardware::NUM_CPU_CORES + 1);
     } else {
         core_data[0].host_thread = std::jthread(ThreadStart, std::ref(*this), 0);
+        pause_barrier = std::make_unique<Common::Barrier>(2);
     }
 }
 
@@ -138,51 +141,14 @@ void CpuManager::MultiCoreRunSuspendThread() {
         auto core = kernel.CurrentPhysicalCoreIndex();
         auto& scheduler = *kernel.CurrentScheduler();
         Kernel::KThread* current_thread = scheduler.GetCurrentThread();
+        current_thread->DisableDispatch();
+
         Common::Fiber::YieldTo(current_thread->GetHostContext(), *core_data[core].host_context);
-        ASSERT(scheduler.ContextSwitchPending());
         ASSERT(core == kernel.CurrentPhysicalCoreIndex());
         scheduler.RescheduleCurrentCore();
     }
 }
 
-void CpuManager::MultiCorePause(bool paused) {
-    if (!paused) {
-        bool all_not_barrier = false;
-        while (!all_not_barrier) {
-            all_not_barrier = true;
-            for (const auto& data : core_data) {
-                all_not_barrier &= !data.is_running.load() && data.initialized.load();
-            }
-        }
-        for (auto& data : core_data) {
-            data.enter_barrier->Set();
-        }
-        if (paused_state.load()) {
-            bool all_barrier = false;
-            while (!all_barrier) {
-                all_barrier = true;
-                for (const auto& data : core_data) {
-                    all_barrier &= data.is_paused.load() && data.initialized.load();
-                }
-            }
-            for (auto& data : core_data) {
-                data.exit_barrier->Set();
-            }
-        }
-    } else {
-        /// Wait until all cores are paused.
-        bool all_barrier = false;
-        while (!all_barrier) {
-            all_barrier = true;
-            for (const auto& data : core_data) {
-                all_barrier &= data.is_paused.load() && data.initialized.load();
-            }
-        }
-        /// Don't release the barrier
-    }
-    paused_state = paused;
-}
-
 ///////////////////////////////////////////////////////////////////////////////
 ///                             SingleCore                                   ///
 ///////////////////////////////////////////////////////////////////////////////
@@ -235,8 +201,9 @@ void CpuManager::SingleCoreRunSuspendThread() {
         auto core = kernel.GetCurrentHostThreadID();
         auto& scheduler = *kernel.CurrentScheduler();
         Kernel::KThread* current_thread = scheduler.GetCurrentThread();
+        current_thread->DisableDispatch();
+
         Common::Fiber::YieldTo(current_thread->GetHostContext(), *core_data[0].host_context);
-        ASSERT(scheduler.ContextSwitchPending());
         ASSERT(core == kernel.GetCurrentHostThreadID());
         scheduler.RescheduleCurrentCore();
     }
@@ -274,37 +241,21 @@ void CpuManager::PreemptSingleCore(bool from_running_enviroment) {
     }
 }
 
-void CpuManager::SingleCorePause(bool paused) {
-    if (!paused) {
-        bool all_not_barrier = false;
-        while (!all_not_barrier) {
-            all_not_barrier = !core_data[0].is_running.load() && core_data[0].initialized.load();
-        }
-        core_data[0].enter_barrier->Set();
-        if (paused_state.load()) {
-            bool all_barrier = false;
-            while (!all_barrier) {
-                all_barrier = core_data[0].is_paused.load() && core_data[0].initialized.load();
-            }
-            core_data[0].exit_barrier->Set();
-        }
-    } else {
-        /// Wait until all cores are paused.
-        bool all_barrier = false;
-        while (!all_barrier) {
-            all_barrier = core_data[0].is_paused.load() && core_data[0].initialized.load();
-        }
-        /// Don't release the barrier
-    }
-    paused_state = paused;
-}
-
 void CpuManager::Pause(bool paused) {
-    if (is_multicore) {
-        MultiCorePause(paused);
-    } else {
-        SingleCorePause(paused);
+    std::scoped_lock lk{pause_lock};
+
+    if (pause_state == paused) {
+        return;
     }
+
+    // Set the new state
+    pause_state.store(paused);
+
+    // Wake up any waiting threads
+    pause_state.notify_all();
+
+    // Wait for all threads to successfully change state before returning
+    pause_barrier->Sync();
 }
 
 void CpuManager::RunThread(std::stop_token stop_token, std::size_t core) {
@@ -320,27 +271,29 @@ void CpuManager::RunThread(std::stop_token stop_token, std::size_t core) {
     Common::SetCurrentThreadName(name.c_str());
     Common::SetCurrentThreadPriority(Common::ThreadPriority::High);
     auto& data = core_data[core];
-    data.enter_barrier = std::make_unique<Common::Event>();
-    data.exit_barrier = std::make_unique<Common::Event>();
     data.host_context = Common::Fiber::ThreadToFiber();
-    data.is_running = false;
-    data.initialized = true;
     const bool sc_sync = !is_async_gpu && !is_multicore;
     bool sc_sync_first_use = sc_sync;
 
     // Cleanup
     SCOPE_EXIT({
         data.host_context->Exit();
-        data.enter_barrier.reset();
-        data.exit_barrier.reset();
-        data.initialized = false;
         MicroProfileOnThreadExit();
     });
 
     /// Running
     while (running_mode) {
-        data.is_running = false;
-        data.enter_barrier->Wait();
+        if (pause_state.load(std::memory_order_relaxed)) {
+            // Wait for caller to acknowledge pausing
+            pause_barrier->Sync();
+
+            // Wait until unpaused
+            pause_state.wait(true, std::memory_order_relaxed);
+
+            // Wait for caller to acknowledge unpausing
+            pause_barrier->Sync();
+        }
+
         if (sc_sync_first_use) {
             system.GPU().ObtainContext();
             sc_sync_first_use = false;
@@ -352,12 +305,7 @@ void CpuManager::RunThread(std::stop_token stop_token, std::size_t core) {
         }
 
         auto current_thread = system.Kernel().CurrentScheduler()->GetCurrentThread();
-        data.is_running = true;
         Common::Fiber::YieldTo(data.host_context, *current_thread->GetHostContext());
-        data.is_running = false;
-        data.is_paused = true;
-        data.exit_barrier->Wait();
-        data.is_paused = false;
     }
 }
 

src/core/cpu_manager.h

@@ -69,13 +69,11 @@ private:
     void MultiCoreRunGuestLoop();
     void MultiCoreRunIdleThread();
     void MultiCoreRunSuspendThread();
-    void MultiCorePause(bool paused);
 
     void SingleCoreRunGuestThread();
     void SingleCoreRunGuestLoop();
     void SingleCoreRunIdleThread();
     void SingleCoreRunSuspendThread();
-    void SingleCorePause(bool paused);
 
     static void ThreadStart(std::stop_token stop_token, CpuManager& cpu_manager, std::size_t core);
 
@@ -83,16 +81,13 @@ private:
 
     struct CoreData {
         std::shared_ptr<Common::Fiber> host_context;
-        std::unique_ptr<Common::Event> enter_barrier;
-        std::unique_ptr<Common::Event> exit_barrier;
-        std::atomic<bool> is_running;
-        std::atomic<bool> is_paused;
-        std::atomic<bool> initialized;
         std::jthread host_thread;
     };
 
     std::atomic<bool> running_mode{};
-    std::atomic<bool> paused_state{};
+    std::atomic<bool> pause_state{};
+    std::unique_ptr<Common::Barrier> pause_barrier{};
+    std::mutex pause_lock{};
 
     std::array<CoreData, Core::Hardware::NUM_CPU_CORES> core_data{};
 

src/core/crypto/key_manager.cpp

@@ -140,7 +140,6 @@ u64 GetSignatureTypeDataSize(SignatureType type) {
         return 0x3C;
     }
     UNREACHABLE();
-    return 0;
 }
 
 u64 GetSignatureTypePaddingSize(SignatureType type) {
@@ -155,7 +154,6 @@ u64 GetSignatureTypePaddingSize(SignatureType type) {
         return 0x40;
     }
     UNREACHABLE();
-    return 0;
 }
 
 SignatureType Ticket::GetSignatureType() const {

src/core/debugger/debugger.cpp

@@ -42,6 +42,16 @@ static std::span<const u8> ReceiveInto(Readable& r, Buffer& buffer) {
     return received_data;
 }
 
+enum class SignalType {
+    Stopped,
+    ShuttingDown,
+};
+
+struct SignalInfo {
+    SignalType type;
+    Kernel::KThread* thread;
+};
+
 namespace Core {
 
 class DebuggerImpl : public DebuggerBackend {
@@ -56,7 +66,7 @@ public:
         ShutdownServer();
     }
 
-    bool NotifyThreadStopped(Kernel::KThread* thread) {
+    bool SignalDebugger(SignalInfo signal_info) {
         std::scoped_lock lk{connection_lock};
 
         if (stopped) {
@@ -64,9 +74,13 @@ public:
             // It should be ignored.
             return false;
         }
-        stopped = true;
 
-        signal_pipe.write_some(boost::asio::buffer(&thread, sizeof(thread)));
+        // Set up the state.
+        stopped = true;
+        info = signal_info;
+
+        // Write a single byte into the pipe to wake up the debug interface.
+        boost::asio::write(signal_pipe, boost::asio::buffer(&stopped, sizeof(stopped)));
         return true;
     }
 
@@ -75,7 +89,7 @@ public:
     }
 
     void WriteToClient(std::span<const u8> data) override {
-        client_socket.write_some(boost::asio::buffer(data.data(), data.size_bytes()));
+        boost::asio::write(client_socket, boost::asio::buffer(data.data(), data.size_bytes()));
     }
 
     void SetActiveThread(Kernel::KThread* thread) override {
@@ -96,7 +110,7 @@ private:
         connection_thread = std::jthread([&, port](std::stop_token stop_token) {
             try {
                 // Initialize the listening socket and accept a new client.
-                tcp::endpoint endpoint{boost::asio::ip::address_v4::loopback(), port};
+                tcp::endpoint endpoint{boost::asio::ip::address_v4::any(), port};
                 tcp::acceptor acceptor{io_context, endpoint};
 
                 acceptor.async_accept(client_socket, [](const auto&) {});
@@ -124,7 +138,7 @@ private:
         Common::SetCurrentThreadName("yuzu:Debugger");
 
         // Set up the client signals for new data.
-        AsyncReceiveInto(signal_pipe, active_thread, [&](auto d) { PipeData(d); });
+        AsyncReceiveInto(signal_pipe, pipe_data, [&](auto d) { PipeData(d); });
         AsyncReceiveInto(client_socket, client_data, [&](auto d) { ClientData(d); });
 
         // Stop the emulated CPU.
@@ -142,9 +156,28 @@ private:
     }
 
     void PipeData(std::span<const u8> data) {
-        AllCoreStop();
-        UpdateActiveThread();
-        frontend->Stopped(active_thread);
+        switch (info.type) {
+        case SignalType::Stopped:
+            // Stop emulation.
+            AllCoreStop();
+
+            // Notify the client.
+            active_thread = info.thread;
+            UpdateActiveThread();
+            frontend->Stopped(active_thread);
+
+            break;
+        case SignalType::ShuttingDown:
+            frontend->ShuttingDown();
+
+            // Wait for emulation to shut down gracefully now.
+            suspend.reset();
+            signal_pipe.close();
+            client_socket.shutdown(boost::asio::socket_base::shutdown_both);
+            LOG_INFO(Debug_GDBStub, "Shut down server");
+
+            break;
+        }
     }
 
     void ClientData(std::span<const u8> data) {
@@ -246,7 +279,9 @@ private:
     boost::asio::ip::tcp::socket client_socket;
     std::optional<std::unique_lock<std::mutex>> suspend;
 
+    SignalInfo info;
     Kernel::KThread* active_thread;
+    bool pipe_data;
     bool stopped;
 
     std::array<u8, 4096> client_data;
@@ -263,7 +298,13 @@ Debugger::Debugger(Core::System& system, u16 port) {
 Debugger::~Debugger() = default;
 
 bool Debugger::NotifyThreadStopped(Kernel::KThread* thread) {
-    return impl && impl->NotifyThreadStopped(thread);
+    return impl && impl->SignalDebugger(SignalInfo{SignalType::Stopped, thread});
+}
+
+void Debugger::NotifyShutdown() {
+    if (impl) {
+        impl->SignalDebugger(SignalInfo{SignalType::ShuttingDown, nullptr});
+    }
 }
 
 } // namespace Core

src/core/debugger/debugger.h

@@ -35,6 +35,11 @@ public:
      */
     bool NotifyThreadStopped(Kernel::KThread* thread);
 
+    /**
+     * Notify the debugger that a shutdown is being performed now and disconnect.
+     */
+    void NotifyShutdown();
+
 private:
     std::unique_ptr<DebuggerImpl> impl;
 };

src/core/debugger/debugger_interface.h

@@ -66,6 +66,11 @@ public:
      */
     virtual void Stopped(Kernel::KThread* thread) = 0;
 
+    /**
+     * Called when emulation is shutting down.
+     */
+    virtual void ShuttingDown() = 0;
+
     /**
      * Called when new data is asynchronously received on the client socket.
      * A list of actions to perform is returned.

src/core/debugger/gdbstub.cpp

@@ -106,6 +106,8 @@ GDBStub::~GDBStub() = default;
 
 void GDBStub::Connected() {}
 
+void GDBStub::ShuttingDown() {}
+
 void GDBStub::Stopped(Kernel::KThread* thread) {
     SendReply(arch->ThreadStatus(thread, GDB_STUB_SIGTRAP));
 }

src/core/debugger/gdbstub.h

@@ -23,6 +23,7 @@ public:
 
     void Connected() override;
     void Stopped(Kernel::KThread* thread) override;
+    void ShuttingDown() override;
     std::vector<DebuggerAction> ClientData(std::span<const u8> data) override;
 
 private:

src/core/debugger/gdbstub_arch.h

@@ -15,6 +15,7 @@ namespace Core {
 
 class GDBStubArch {
 public:
+    virtual ~GDBStubArch() = default;
     virtual std::string GetTargetXML() const = 0;
     virtual std::string RegRead(const Kernel::KThread* thread, size_t id) const = 0;
     virtual void RegWrite(Kernel::KThread* thread, size_t id, std::string_view value) const = 0;

src/core/file_sys/content_archive.cpp

@@ -419,7 +419,7 @@ std::optional<Core::Crypto::Key128> NCA::GetKeyAreaKey(NCASectionCryptoType type
         Core::Crypto::Mode::ECB);
     cipher.Transcode(key_area.data(), key_area.size(), key_area.data(), Core::Crypto::Op::Decrypt);
 
-    Core::Crypto::Key128 out;
+    Core::Crypto::Key128 out{};
     if (type == NCASectionCryptoType::XTS) {
         std::copy(key_area.begin(), key_area.begin() + 0x10, out.begin());
     } else if (type == NCASectionCryptoType::CTR || type == NCASectionCryptoType::BKTR) {

src/core/file_sys/nca_patch.cpp

@@ -50,7 +50,7 @@ std::pair<std::size_t, std::size_t> SearchBucketEntry(u64 offset, const BlockTyp
             low = mid + 1;
         }
     }
-    UNREACHABLE_MSG("Offset could not be found in BKTR block.");
+    ASSERT_MSG(false, "Offset could not be found in BKTR block.");
     return {0, 0};
 }
 } // Anonymous namespace

src/core/file_sys/registered_cache.cpp

@@ -108,7 +108,7 @@ ContentRecordType GetCRTypeFromNCAType(NCAContentType type) {
         // TODO(DarkLordZach): Peek at NCA contents to differentiate Manual and Legal.
         return ContentRecordType::HtmlDocument;
     default:
-        UNREACHABLE_MSG("Invalid NCAContentType={:02X}", type);
+        ASSERT_MSG(false, "Invalid NCAContentType={:02X}", type);
         return ContentRecordType{};
     }
 }

src/core/file_sys/vfs_real.cpp

@@ -144,7 +144,7 @@ VirtualFile RealVfsFilesystem::MoveFile(std::string_view old_path_, std::string_
             LOG_ERROR(Service_FS, "Failed to open path {} in order to re-cache it", new_path);
         }
     } else {
-        UNREACHABLE();
+        ASSERT(false);
         return nullptr;
     }
 

src/core/frontend/applets/controller.cpp

@@ -65,7 +65,7 @@ void DefaultControllerApplet::ReconfigureControllers(std::function<void()> callb
             controller->SetNpadStyleIndex(Core::HID::NpadStyleIndex::Handheld);
             controller->Connect(true);
         } else {
-            UNREACHABLE_MSG("Unable to add a new controller based on the given parameters!");
+            ASSERT_MSG(false, "Unable to add a new controller based on the given parameters!");
         }
     }
 

src/core/hid/hid_core.cpp

@@ -48,7 +48,7 @@ EmulatedController* HIDCore::GetEmulatedController(NpadIdType npad_id_type) {
         return handheld.get();
     case NpadIdType::Invalid:
     default:
-        UNREACHABLE_MSG("Invalid NpadIdType={}", npad_id_type);
+        ASSERT_MSG(false, "Invalid NpadIdType={}", npad_id_type);
         return nullptr;
     }
 }
@@ -77,7 +77,7 @@ const EmulatedController* HIDCore::GetEmulatedController(NpadIdType npad_id_type
         return handheld.get();
     case NpadIdType::Invalid:
     default:
-        UNREACHABLE_MSG("Invalid NpadIdType={}", npad_id_type);
+        ASSERT_MSG(false, "Invalid NpadIdType={}", npad_id_type);
         return nullptr;
     }
 }

src/core/hle/kernel/hle_ipc.h

@@ -141,7 +141,7 @@ public:
         if (index < DomainHandlerCount()) {
             domain_handlers[index] = nullptr;
         } else {
-            UNREACHABLE_MSG("Unexpected handler index {}", index);
+            ASSERT_MSG(false, "Unexpected handler index {}", index);
         }
     }
 

src/core/hle/kernel/init/init_slab_setup.cpp

@@ -244,7 +244,7 @@ void InitializeSlabHeaps(Core::System& system, KMemoryLayout& memory_layout) {
             FOREACH_SLAB_TYPE(INITIALIZE_SLAB_HEAP)
             // If we somehow get an invalid type, abort.
         default:
-            UNREACHABLE_MSG("Unknown slab type: {}", slab_types[i]);
+            ASSERT_MSG(false, "Unknown slab type: {}", slab_types[i]);
         }
 
         // If we've hit the end of a gap, free it.

src/core/hle/kernel/k_address_arbiter.h

@@ -35,7 +35,7 @@ public:
         case Svc::SignalType::SignalAndModifyByWaitingCountIfEqual:
             return SignalAndModifyByWaitingCountIfEqual(addr, value, count);
         }
-        UNREACHABLE();
+        ASSERT(false);
         return ResultUnknown;
     }
 
@@ -49,7 +49,7 @@ public:
         case Svc::ArbitrationType::WaitIfEqual:
             return WaitIfEqual(addr, value, timeout);
         }
-        UNREACHABLE();
+        ASSERT(false);
         return ResultUnknown;
     }
 

src/core/hle/kernel/k_address_space_info.cpp

@@ -84,7 +84,7 @@ u64 KAddressSpaceInfo::GetAddressSpaceStart(std::size_t width, Type type) {
         ASSERT(IsAllowedIndexForAddress(AddressSpaceIndices39Bit[index]));
         return AddressSpaceInfos[AddressSpaceIndices39Bit[index]].address;
     }
-    UNREACHABLE();
+    ASSERT(false);
     return 0;
 }
 
@@ -101,7 +101,7 @@ std::size_t KAddressSpaceInfo::GetAddressSpaceSize(std::size_t width, Type type)
         ASSERT(IsAllowed39BitType(type));
         return AddressSpaceInfos[AddressSpaceIndices39Bit[index]].size;
     }
-    UNREACHABLE();
+    ASSERT(false);
     return 0;
 }
 

src/core/hle/kernel/k_auto_object.h

@@ -18,7 +18,7 @@ namespace Kernel {
 class KernelCore;
 class KProcess;
 
-#define KERNEL_AUTOOBJECT_TRAITS(CLASS, BASE_CLASS)                                                \
+#define KERNEL_AUTOOBJECT_TRAITS_IMPL(CLASS, BASE_CLASS, ATTRIBUTE)                                \
                                                                                                    \
 private:                                                                                           \
     friend class ::Kernel::KClassTokenGenerator;                                                   \
@@ -40,16 +40,19 @@ public:
     static constexpr const char* GetStaticTypeName() {                                             \
         return TypeName;                                                                           \
     }                                                                                              \
-    virtual TypeObj GetTypeObj() const {                                                           \
+    virtual TypeObj GetTypeObj() ATTRIBUTE {                                                       \
         return GetStaticTypeObj();                                                                 \
     }                                                                                              \
-    virtual const char* GetTypeName() const {                                                      \
+    virtual const char* GetTypeName() ATTRIBUTE {                                                  \
         return GetStaticTypeName();                                                                \
     }                                                                                              \
                                                                                                    \
 private:                                                                                           \
     constexpr bool operator!=(const TypeObj& rhs)
 
+#define KERNEL_AUTOOBJECT_TRAITS(CLASS, BASE_CLASS)                                                \
+    KERNEL_AUTOOBJECT_TRAITS_IMPL(CLASS, BASE_CLASS, const override)
+
 class KAutoObject {
 protected:
     class TypeObj {
@@ -82,7 +85,7 @@ protected:
     };
 
 private:
-    KERNEL_AUTOOBJECT_TRAITS(KAutoObject, KAutoObject);
+    KERNEL_AUTOOBJECT_TRAITS_IMPL(KAutoObject, KAutoObject, const);
 
 public:
     explicit KAutoObject(KernelCore& kernel_) : kernel(kernel_) {

src/core/hle/kernel/k_class_token.h

@@ -49,6 +49,7 @@ private:
                 }
             }
         }
+        UNREACHABLE();
     }();
 
     template <typename T>

src/core/hle/kernel/k_code_memory.cpp

@@ -27,23 +27,18 @@ ResultCode KCodeMemory::Initialize(Core::DeviceMemory& device_memory, VAddr addr
     auto& page_table = m_owner->PageTable();
 
     // Construct the page group.
-    m_page_group =
-        KPageLinkedList(page_table.GetPhysicalAddr(addr), Common::DivideUp(size, PageSize));
+    m_page_group = {};
 
     // Lock the memory.
-    R_TRY(page_table.LockForCodeMemory(addr, size))
+    R_TRY(page_table.LockForCodeMemory(&m_page_group, addr, size))
 
     // Clear the memory.
-    //
-    // FIXME: this ends up clobbering address ranges outside the scope of the mapping within
-    // guest memory, and is not specifically required if the guest program is correctly
-    // written, so disable until this is further investigated.
-    //
-    // for (const auto& block : m_page_group.Nodes()) {
-    //     std::memset(device_memory.GetPointer(block.GetAddress()), 0xFF, block.GetSize());
-    // }
+    for (const auto& block : m_page_group.Nodes()) {
+        std::memset(device_memory.GetPointer(block.GetAddress()), 0xFF, block.GetSize());
+    }
 
     // Set remaining tracking members.
+    m_owner->Open();
     m_address = addr;
     m_is_initialized = true;
     m_is_owner_mapped = false;
@@ -57,8 +52,14 @@ void KCodeMemory::Finalize() {
     // Unlock.
     if (!m_is_mapped && !m_is_owner_mapped) {
         const size_t size = m_page_group.GetNumPages() * PageSize;
-        m_owner->PageTable().UnlockForCodeMemory(m_address, size);
+        m_owner->PageTable().UnlockForCodeMemory(m_address, size, m_page_group);
     }
+
+    // Close the page group.
+    m_page_group = {};
+
+    // Close our reference to our owner.
+    m_owner->Close();
 }
 
 ResultCode KCodeMemory::Map(VAddr address, size_t size) {
@@ -118,7 +119,8 @@ ResultCode KCodeMemory::MapToOwner(VAddr address, size_t size, Svc::MemoryPermis
         k_perm = KMemoryPermission::UserReadExecute;
         break;
     default:
-        break;
+        // Already validated by ControlCodeMemory svc
+        UNREACHABLE();
     }
 
     // Map the memory.

src/core/hle/kernel/k_memory_manager.cpp

@@ -29,7 +29,7 @@ constexpr KMemoryManager::Pool GetPoolFromMemoryRegionType(u32 type) {
     } else if ((type | KMemoryRegionType_DramSystemNonSecurePool) == type) {
         return KMemoryManager::Pool::SystemNonSecure;
     } else {
-        UNREACHABLE_MSG("InvalidMemoryRegionType for conversion to Pool");
+        ASSERT_MSG(false, "InvalidMemoryRegionType for conversion to Pool");
         return {};
     }
 }

src/core/hle/kernel/k_page_table.cpp

@@ -35,7 +35,7 @@ constexpr std::size_t GetAddressSpaceWidthFromType(FileSys::ProgramAddressSpaceT
     case FileSys::ProgramAddressSpaceType::Is39Bit:
         return 39;
     default:
-        UNREACHABLE();
+        ASSERT(false);
         return {};
     }
 }
@@ -128,7 +128,7 @@ ResultCode KPageTable::InitializeForProcess(FileSys::ProgramAddressSpaceType as_
     const std::size_t needed_size{
         (alias_region_size + heap_region_size + stack_region_size + kernel_map_region_size)};
     if (alloc_size < needed_size) {
-        UNREACHABLE();
+        ASSERT(false);
         return ResultOutOfMemory;
     }
 
@@ -542,6 +542,95 @@ ResultCode KPageTable::MakePageGroup(KPageLinkedList& pg, VAddr addr, size_t num
     return ResultSuccess;
 }
 
+bool KPageTable::IsValidPageGroup(const KPageLinkedList& pg_ll, VAddr addr, size_t num_pages) {
+    ASSERT(this->IsLockedByCurrentThread());
+
+    const size_t size = num_pages * PageSize;
+    const auto& pg = pg_ll.Nodes();
+    const auto& memory_layout = system.Kernel().MemoryLayout();
+
+    // Empty groups are necessarily invalid.
+    if (pg.empty()) {
+        return false;
+    }
+
+    // We're going to validate that the group we'd expect is the group we see.
+    auto cur_it = pg.begin();
+    PAddr cur_block_address = cur_it->GetAddress();
+    size_t cur_block_pages = cur_it->GetNumPages();
+
+    auto UpdateCurrentIterator = [&]() {
+        if (cur_block_pages == 0) {
+            if ((++cur_it) == pg.end()) {
+                return false;
+            }
+
+            cur_block_address = cur_it->GetAddress();
+            cur_block_pages = cur_it->GetNumPages();
+        }
+        return true;
+    };
+
+    // Begin traversal.
+    Common::PageTable::TraversalContext context;
+    Common::PageTable::TraversalEntry next_entry;
+    if (!page_table_impl.BeginTraversal(next_entry, context, addr)) {
+        return false;
+    }
+
+    // Prepare tracking variables.
+    PAddr cur_addr = next_entry.phys_addr;
+    size_t cur_size = next_entry.block_size - (cur_addr & (next_entry.block_size - 1));
+    size_t tot_size = cur_size;
+
+    // Iterate, comparing expected to actual.
+    while (tot_size < size) {
+        if (!page_table_impl.ContinueTraversal(next_entry, context)) {
+            return false;
+        }
+
+        if (next_entry.phys_addr != (cur_addr + cur_size)) {
+            const size_t cur_pages = cur_size / PageSize;
+
+            if (!IsHeapPhysicalAddress(memory_layout, cur_addr)) {
+                return false;
+            }
+
+            if (!UpdateCurrentIterator()) {
+                return false;
+            }
+
+            if (cur_block_address != cur_addr || cur_block_pages < cur_pages) {
+                return false;
+            }
+
+            cur_block_address += cur_size;
+            cur_block_pages -= cur_pages;
+            cur_addr = next_entry.phys_addr;
+            cur_size = next_entry.block_size;
+        } else {
+            cur_size += next_entry.block_size;
+        }
+
+        tot_size += next_entry.block_size;
+    }
+
+    // Ensure we compare the right amount for the last block.
+    if (tot_size > size) {
+        cur_size -= (tot_size - size);
+    }
+
+    if (!IsHeapPhysicalAddress(memory_layout, cur_addr)) {
+        return false;
+    }
+
+    if (!UpdateCurrentIterator()) {
+        return false;
+    }
+
+    return cur_block_address == cur_addr && cur_block_pages == (cur_size / PageSize);
+}
+
 ResultCode KPageTable::UnmapProcessMemory(VAddr dst_addr, std::size_t size,
                                           KPageTable& src_page_table, VAddr src_addr) {
     KScopedLightLock lk(general_lock);
@@ -1341,7 +1430,7 @@ ResultCode KPageTable::SetProcessMemoryPermission(VAddr addr, std::size_t size,
             new_state = KMemoryState::AliasCodeData;
             break;
         default:
-            UNREACHABLE();
+            ASSERT(false);
         }
     }
 
@@ -1687,22 +1776,22 @@ ResultCode KPageTable::UnlockForDeviceAddressSpace(VAddr addr, std::size_t size)
     return ResultSuccess;
 }
 
-ResultCode KPageTable::LockForCodeMemory(VAddr addr, std::size_t size) {
+ResultCode KPageTable::LockForCodeMemory(KPageLinkedList* out, VAddr addr, std::size_t size) {
     return this->LockMemoryAndOpen(
-        nullptr, nullptr, addr, size, KMemoryState::FlagCanCodeMemory,
-        KMemoryState::FlagCanCodeMemory, KMemoryPermission::All, KMemoryPermission::UserReadWrite,
-        KMemoryAttribute::All, KMemoryAttribute::None,
+        out, nullptr, addr, size, KMemoryState::FlagCanCodeMemory, KMemoryState::FlagCanCodeMemory,
+        KMemoryPermission::All, KMemoryPermission::UserReadWrite, KMemoryAttribute::All,
+        KMemoryAttribute::None,
         static_cast<KMemoryPermission>(KMemoryPermission::NotMapped |
                                        KMemoryPermission::KernelReadWrite),
         KMemoryAttribute::Locked);
 }
 
-ResultCode KPageTable::UnlockForCodeMemory(VAddr addr, std::size_t size) {
-    return this->UnlockMemory(addr, size, KMemoryState::FlagCanCodeMemory,
-                              KMemoryState::FlagCanCodeMemory, KMemoryPermission::None,
-                              KMemoryPermission::None, KMemoryAttribute::All,
-                              KMemoryAttribute::Locked, KMemoryPermission::UserReadWrite,
-                              KMemoryAttribute::Locked, nullptr);
+ResultCode KPageTable::UnlockForCodeMemory(VAddr addr, std::size_t size,
+                                           const KPageLinkedList& pg) {
+    return this->UnlockMemory(
+        addr, size, KMemoryState::FlagCanCodeMemory, KMemoryState::FlagCanCodeMemory,
+        KMemoryPermission::None, KMemoryPermission::None, KMemoryAttribute::All,
+        KMemoryAttribute::Locked, KMemoryPermission::UserReadWrite, KMemoryAttribute::Locked, &pg);
 }
 
 ResultCode KPageTable::InitializeMemoryLayout(VAddr start, VAddr end) {
@@ -1734,9 +1823,7 @@ void KPageTable::AddRegionToPages(VAddr start, std::size_t num_pages,
     VAddr addr{start};
     while (addr < start + (num_pages * PageSize)) {
         const PAddr paddr{GetPhysicalAddr(addr)};
-        if (!paddr) {
-            UNREACHABLE();
-        }
+        ASSERT(paddr != 0);
         page_linked_list.AddBlock(paddr, 1);
         addr += PageSize;
     }
@@ -1767,7 +1854,7 @@ ResultCode KPageTable::Operate(VAddr addr, std::size_t num_pages, const KPageLin
             system.Memory().MapMemoryRegion(page_table_impl, addr, size, node.GetAddress());
             break;
         default:
-            UNREACHABLE();
+            ASSERT(false);
         }
 
         addr += size;
@@ -1798,7 +1885,7 @@ ResultCode KPageTable::Operate(VAddr addr, std::size_t num_pages, KMemoryPermiss
     case OperationType::ChangePermissionsAndRefresh:
         break;
     default:
-        UNREACHABLE();
+        ASSERT(false);
     }
     return ResultSuccess;
 }
@@ -1835,7 +1922,6 @@ VAddr KPageTable::GetRegionAddress(KMemoryState state) const {
         return code_region_start;
     default:
         UNREACHABLE();
-        return {};
     }
 }
 
@@ -1871,7 +1957,6 @@ std::size_t KPageTable::GetRegionSize(KMemoryState state) const {
         return code_region_end - code_region_start;
     default:
         UNREACHABLE();
-        return {};
     }
 }
 
@@ -2125,7 +2210,7 @@ ResultCode KPageTable::UnlockMemory(VAddr addr, size_t size, KMemoryState state_
 
     // Check the page group.
     if (pg != nullptr) {
-        UNIMPLEMENTED_MSG("PageGroup support is unimplemented!");
+        R_UNLESS(this->IsValidPageGroup(*pg, addr, num_pages), ResultInvalidMemoryRegion);
     }
 
     // Decide on new perm and attr.

src/core/hle/kernel/k_page_table.h

@@ -72,8 +72,8 @@ public:
                                           KMemoryPermission perm, PAddr map_addr = 0);
     ResultCode LockForDeviceAddressSpace(VAddr addr, std::size_t size);
     ResultCode UnlockForDeviceAddressSpace(VAddr addr, std::size_t size);
-    ResultCode LockForCodeMemory(VAddr addr, std::size_t size);
-    ResultCode UnlockForCodeMemory(VAddr addr, std::size_t size);
+    ResultCode LockForCodeMemory(KPageLinkedList* out, VAddr addr, std::size_t size);
+    ResultCode UnlockForCodeMemory(VAddr addr, std::size_t size, const KPageLinkedList& pg);
     ResultCode MakeAndOpenPageGroup(KPageLinkedList* out, VAddr address, size_t num_pages,
                                     KMemoryState state_mask, KMemoryState state,
                                     KMemoryPermission perm_mask, KMemoryPermission perm,
@@ -178,6 +178,7 @@ private:
                             const KPageLinkedList* pg);
 
     ResultCode MakePageGroup(KPageLinkedList& pg, VAddr addr, size_t num_pages);
+    bool IsValidPageGroup(const KPageLinkedList& pg, VAddr addr, size_t num_pages);
 
     bool IsLockedByCurrentThread() const {
         return general_lock.IsLockedByCurrentThread();

src/core/hle/kernel/k_port.cpp

@@ -60,7 +60,7 @@ ResultCode KPort::EnqueueSession(KServerSession* session) {
     if (auto session_ptr = server.GetSessionRequestHandler().lock()) {
         session_ptr->ClientConnected(server.AcceptSession());
     } else {
-        UNREACHABLE();
+        ASSERT(false);
     }
 
     return ResultSuccess;

src/core/hle/kernel/k_process.cpp

@@ -350,7 +350,7 @@ ResultCode KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata,
         break;
 
     default:
-        UNREACHABLE();
+        ASSERT(false);
     }
 
     // Create TLS region

src/core/hle/kernel/k_server_session.cpp

@@ -97,13 +97,13 @@ ResultCode KServerSession::HandleDomainSyncRequest(Kernel::HLERequestContext& co
                          "object_id {} is too big! This probably means a recent service call "
                          "to {} needed to return a new interface!",
                          object_id, name);
-            UNREACHABLE();
+            ASSERT(false);
             return ResultSuccess; // Ignore error if asserts are off
         }
         if (auto strong_ptr = manager->DomainHandler(object_id - 1).lock()) {
             return strong_ptr->HandleSyncRequest(*this, context);
         } else {
-            UNREACHABLE();
+            ASSERT(false);
             return ResultSuccess;
         }
 

src/core/hle/kernel/k_thread.cpp

@@ -133,7 +133,7 @@ ResultCode KThread::Initialize(KThreadFunction func, uintptr_t arg, VAddr user_s
         UNIMPLEMENTED();
         break;
     default:
-        UNREACHABLE_MSG("KThread::Initialize: Unknown ThreadType {}", static_cast<u32>(type));
+        ASSERT_MSG(false, "KThread::Initialize: Unknown ThreadType {}", static_cast<u32>(type));
         break;
     }
     thread_type = type;

src/core/hle/kernel/kernel.cpp

@@ -212,7 +212,9 @@ struct KernelCore::Impl {
         system_resource_limit = KResourceLimit::Create(system.Kernel());
         system_resource_limit->Initialize(&core_timing);
 
-        const auto [total_size, kernel_size] = memory_layout->GetTotalAndKernelMemorySizes();
+        const auto sizes{memory_layout->GetTotalAndKernelMemorySizes()};
+        const auto total_size{sizes.first};
+        const auto kernel_size{sizes.second};
 
         // If setting the default system values fails, then something seriously wrong has occurred.
         ASSERT(system_resource_limit->SetLimitValue(LimitableResource::PhysicalMemory, total_size)
@@ -252,6 +254,7 @@ struct KernelCore::Impl {
                                                          core_id)
                        .IsSuccess());
             suspend_threads[core_id]->SetName(fmt::format("SuspendThread:{}", core_id));
+            suspend_threads[core_id]->DisableDispatch();
         }
     }
 
@@ -1073,9 +1076,6 @@ void KernelCore::Suspend(bool in_suspention) {
             impl->suspend_threads[core_id]->SetState(state);
             impl->suspend_threads[core_id]->SetWaitReasonForDebugging(
                 ThreadWaitReasonForDebugging::Suspended);
-            if (!should_suspend) {
-                impl->suspend_threads[core_id]->DisableDispatch();
-            }
         }
     }
 }

src/core/hle/kernel/svc.cpp

@@ -1876,7 +1876,7 @@ static void SleepThread(Core::System& system, s64 nanoseconds) {
         KScheduler::YieldToAnyThread(kernel);
     } else {
         // Nintendo does nothing at all if an otherwise invalid value is passed.
-        UNREACHABLE_MSG("Unimplemented sleep yield type '{:016X}'!", nanoseconds);
+        ASSERT_MSG(false, "Unimplemented sleep yield type '{:016X}'!", nanoseconds);
     }
 }
 

src/core/hle/service/am/applets/applet_controller.cpp

@@ -178,7 +178,7 @@ ResultCode Controller::GetStatus() const {
 }
 
 void Controller::ExecuteInteractive() {
-    UNREACHABLE_MSG("Attempted to call interactive execution on non-interactive applet.");
+    ASSERT_MSG(false, "Attempted to call interactive execution on non-interactive applet.");
 }
 
 void Controller::Execute() {

src/core/hle/service/am/applets/applet_error.cpp

@@ -156,7 +156,7 @@ ResultCode Error::GetStatus() const {
 }
 
 void Error::ExecuteInteractive() {
-    UNREACHABLE_MSG("Unexpected interactive applet data!");
+    ASSERT_MSG(false, "Unexpected interactive applet data!");
 }
 
 void Error::Execute() {

src/core/hle/service/am/applets/applet_general_backend.cpp

@@ -76,7 +76,7 @@ ResultCode Auth::GetStatus() const {
 }
 
 void Auth::ExecuteInteractive() {
-    UNREACHABLE_MSG("Unexpected interactive applet data.");
+    ASSERT_MSG(false, "Unexpected interactive applet data.");
 }
 
 void Auth::Execute() {
@@ -175,7 +175,7 @@ ResultCode PhotoViewer::GetStatus() const {
 }
 
 void PhotoViewer::ExecuteInteractive() {
-    UNREACHABLE_MSG("Unexpected interactive applet data.");
+    ASSERT_MSG(false, "Unexpected interactive applet data.");
 }
 
 void PhotoViewer::Execute() {

src/core/hle/service/am/applets/applet_mii_edit.cpp

@@ -67,7 +67,7 @@ ResultCode MiiEdit::GetStatus() const {
 }
 
 void MiiEdit::ExecuteInteractive() {
-    UNREACHABLE_MSG("Attempted to call interactive execution on non-interactive applet.");
+    ASSERT_MSG(false, "Attempted to call interactive execution on non-interactive applet.");
 }
 
 void MiiEdit::Execute() {

src/core/hle/service/am/applets/applet_profile_select.cpp

@@ -44,7 +44,7 @@ ResultCode ProfileSelect::GetStatus() const {
 }
 
 void ProfileSelect::ExecuteInteractive() {
-    UNREACHABLE_MSG("Attempted to call interactive execution on non-interactive applet.");
+    ASSERT_MSG(false, "Attempted to call interactive execution on non-interactive applet.");
 }
 
 void ProfileSelect::Execute() {

src/core/hle/service/am/applets/applet_software_keyboard.cpp

@@ -71,7 +71,7 @@ void SoftwareKeyboard::Initialize() {
         InitializeBackground(applet_mode);
         break;
     default:
-        UNREACHABLE_MSG("Invalid LibraryAppletMode={}", applet_mode);
+        ASSERT_MSG(false, "Invalid LibraryAppletMode={}", applet_mode);
         break;
     }
 }

src/core/hle/service/am/applets/applet_web_browser.cpp

@@ -279,7 +279,7 @@ void WebBrowser::Initialize() {
         InitializeLobby();
         break;
     default:
-        UNREACHABLE_MSG("Invalid ShimKind={}", web_arg_header.shim_kind);
+        ASSERT_MSG(false, "Invalid ShimKind={}", web_arg_header.shim_kind);
         break;
     }
 }
@@ -320,7 +320,7 @@ void WebBrowser::Execute() {
         ExecuteLobby();
         break;
     default:
-        UNREACHABLE_MSG("Invalid ShimKind={}", web_arg_header.shim_kind);
+        ASSERT_MSG(false, "Invalid ShimKind={}", web_arg_header.shim_kind);
         WebBrowserExit(WebExitReason::EndButtonPressed);
         break;
     }

src/core/hle/service/filesystem/fsp_srv.cpp

@@ -899,7 +899,7 @@ void FSP_SRV::OpenSaveDataFileSystem(Kernel::HLERequestContext& ctx) {
     case FileSys::SaveDataSpaceId::TemporaryStorage:
     case FileSys::SaveDataSpaceId::ProperSystem:
     case FileSys::SaveDataSpaceId::SafeMode:
-        UNREACHABLE();
+        ASSERT(false);
     }
 
     auto filesystem = std::make_shared<IFileSystem>(system, std::move(dir.Unwrap()),

src/core/hle/service/hid/controllers/gesture.cpp

@@ -61,6 +61,7 @@ void Controller_Gesture::OnUpdate(const Core::Timing::CoreTiming& core_timing) {
     }
 
     last_update_timestamp = shared_memory->gesture_lifo.timestamp;
+    UpdateGestureSharedMemory(gesture, time_difference);
 }
 
 void Controller_Gesture::ReadTouchInput() {
@@ -94,8 +95,7 @@ bool Controller_Gesture::ShouldUpdateGesture(const GestureProperties& gesture,
     return false;
 }
 
-void Controller_Gesture::UpdateGestureSharedMemory(u8* data, std::size_t size,
-                                                   GestureProperties& gesture,
+void Controller_Gesture::UpdateGestureSharedMemory(GestureProperties& gesture,
                                                    f32 time_difference) {
     GestureType type = GestureType::Idle;
     GestureAttribute attributes{};

src/core/hle/service/hid/controllers/gesture.h

@@ -107,8 +107,7 @@ private:
     bool ShouldUpdateGesture(const GestureProperties& gesture, f32 time_difference);
 
     // Updates the shared memory to the next state
-    void UpdateGestureSharedMemory(u8* data, std::size_t size, GestureProperties& gesture,
-                                   f32 time_difference);
+    void UpdateGestureSharedMemory(GestureProperties& gesture, f32 time_difference);
 
     // Initializes new gesture
     void NewGesture(GestureProperties& gesture, GestureType& type, GestureAttribute& attributes);

src/core/hle/service/hid/controllers/npad.cpp

@@ -160,7 +160,7 @@ void Controller_NPad::InitNewlyAddedController(Core::HID::NpadIdType npad_id) {
     shared_memory->system_properties.raw = 0;
     switch (controller_type) {
     case Core::HID::NpadStyleIndex::None:
-        UNREACHABLE();
+        ASSERT(false);
         break;
     case Core::HID::NpadStyleIndex::ProController:
         shared_memory->style_tag.fullkey.Assign(1);
@@ -422,7 +422,7 @@ void Controller_NPad::OnUpdate(const Core::Timing::CoreTiming& core_timing) {
         libnx_state.connection_status.is_connected.Assign(1);
         switch (controller_type) {
         case Core::HID::NpadStyleIndex::None:
-            UNREACHABLE();
+            ASSERT(false);
             break;
         case Core::HID::NpadStyleIndex::ProController:
         case Core::HID::NpadStyleIndex::NES:
@@ -597,7 +597,7 @@ void Controller_NPad::OnMotionUpdate(const Core::Timing::CoreTiming& core_timing
 
         switch (controller_type) {
         case Core::HID::NpadStyleIndex::None:
-            UNREACHABLE();
+            ASSERT(false);
             break;
         case Core::HID::NpadStyleIndex::ProController:
         case Core::HID::NpadStyleIndex::Pokeball:
@@ -856,7 +856,7 @@ void Controller_NPad::VibrateController(
     }
 
     if (vibration_device_handle.device_index == Core::HID::DeviceIndex::None) {
-        UNREACHABLE_MSG("DeviceIndex should never be None!");
+        ASSERT_MSG(false, "DeviceIndex should never be None!");
         return;
     }
 

src/core/hle/service/hid/hid.cpp

@@ -1441,7 +1441,7 @@ void Hid::GetVibrationDeviceInfo(Kernel::HLERequestContext& ctx) {
         break;
     case Core::HID::DeviceIndex::None:
     default:
-        UNREACHABLE_MSG("DeviceIndex should never be None!");
+        ASSERT_MSG(false, "DeviceIndex should never be None!");
         vibration_device_info.position = Core::HID::VibrationDevicePosition::None;
         break;
     }

src/core/hle/service/ldr/ldr.cpp

@@ -347,7 +347,7 @@ public:
         }
 
         if (!succeeded) {
-            UNREACHABLE_MSG("Out of address space!");
+            ASSERT_MSG(false, "Out of address space!");
             return Kernel::ResultOutOfMemory;
         }
 

src/core/hle/service/mii/mii_manager.cpp

@@ -290,7 +290,7 @@ MiiStoreData BuildRandomStoreData(Age age, Gender gender, Race race, const Commo
     u8 glasses_type{};
     while (glasses_type_start < glasses_type_info.values[glasses_type]) {
         if (++glasses_type >= glasses_type_info.values_count) {
-            UNREACHABLE();
+            ASSERT(false);
             break;
         }
     }

src/core/hle/service/nvdrv/syncpoint_manager.cpp

@@ -23,7 +23,7 @@ u32 SyncpointManager::AllocateSyncpoint() {
             return syncpoint_id;
         }
     }
-    UNREACHABLE_MSG("No more available syncpoints!");
+    ASSERT_MSG(false, "No more available syncpoints!");
     return {};
 }
 

src/core/hle/service/nvflinger/buffer_queue_consumer.cpp

@@ -89,14 +89,6 @@ Status BufferQueueConsumer::AcquireBuffer(BufferItem* out_buffer,
 
     LOG_DEBUG(Service_NVFlinger, "acquiring slot={}", slot);
 
-    // If the front buffer is still being tracked, update its slot state
-    if (core->StillTracking(*front)) {
-        slots[slot].acquire_called = true;
-        slots[slot].needs_cleanup_on_release = false;
-        slots[slot].buffer_state = BufferState::Acquired;
-        slots[slot].fence = Fence::NoFence();
-    }
-
     // If the buffer has previously been acquired by the consumer, set graphic_buffer to nullptr to
     // avoid unnecessarily remapping this buffer on the consumer side.
     if (out_buffer->acquire_called) {
@@ -139,26 +131,11 @@ Status BufferQueueConsumer::ReleaseBuffer(s32 slot, u64 frame_number, const Fenc
             ++current;
         }
 
-        if (slots[slot].buffer_state == BufferState::Acquired) {
-            slots[slot].fence = release_fence;
-            slots[slot].buffer_state = BufferState::Free;
+        slots[slot].buffer_state = BufferState::Free;
 
-            listener = core->connected_producer_listener;
+        listener = core->connected_producer_listener;
 
-            LOG_DEBUG(Service_NVFlinger, "releasing slot {}", slot);
-        } else if (slots[slot].needs_cleanup_on_release) {
-            LOG_DEBUG(Service_NVFlinger, "releasing a stale buffer slot {} (state = {})", slot,
-                      slots[slot].buffer_state);
-
-            slots[slot].needs_cleanup_on_release = false;
-
-            return Status::StaleBufferSlot;
-        } else {
-            LOG_ERROR(Service_NVFlinger, "attempted to release buffer slot {} but its state was {}",
-                      slot, slots[slot].buffer_state);
-
-            return Status::BadValue;
-        }
+        LOG_DEBUG(Service_NVFlinger, "releasing slot {}", slot);
 
         core->SignalDequeueCondition();
     }

src/core/hle/service/nvflinger/buffer_queue_core.cpp

@@ -84,10 +84,6 @@ void BufferQueueCore::FreeBufferLocked(s32 slot) {
 
     slots[slot].graphic_buffer.reset();
 
-    if (slots[slot].buffer_state == BufferState::Acquired) {
-        slots[slot].needs_cleanup_on_release = true;
-    }
-
     slots[slot].buffer_state = BufferState::Free;
     slots[slot].frame_number = UINT32_MAX;
     slots[slot].acquire_called = false;

src/core/hle/service/nvflinger/buffer_queue_producer.cpp

@@ -659,7 +659,7 @@ Status BufferQueueProducer::Query(NativeWindow what, s32* out_value) {
         value = core->consumer_usage_bit;
         break;
     default:
-        UNREACHABLE();
+        ASSERT(false);
         return Status::BadValue;
     }
 

src/core/hle/service/nvflinger/buffer_slot.h

@@ -31,7 +31,6 @@ struct BufferSlot final {
     u64 frame_number{};
     Fence fence;
     bool acquire_called{};
-    bool needs_cleanup_on_release{};
     bool attached_by_consumer{};
     bool is_preallocated{};
 };

src/core/hle/service/time/standard_user_system_clock_core.cpp

@@ -48,12 +48,12 @@ ResultCode StandardUserSystemClockCore::GetClockContext(Core::System& system,
 }
 
 ResultCode StandardUserSystemClockCore::Flush(const SystemClockContext&) {
-    UNREACHABLE();
+    UNIMPLEMENTED();
     return ERROR_NOT_IMPLEMENTED;
 }
 
 ResultCode StandardUserSystemClockCore::SetClockContext(const SystemClockContext&) {
-    UNREACHABLE();
+    UNIMPLEMENTED();
     return ERROR_NOT_IMPLEMENTED;
 }
 

src/core/hle/service/time/time_manager.cpp

@@ -111,7 +111,7 @@ struct TimeManager::Impl final {
                               FileSys::VirtualFile& vfs_file) {
         if (time_zone_content_manager.GetTimeZoneManager().SetDeviceLocationNameWithTimeZoneRule(
                 location_name, vfs_file) != ResultSuccess) {
-            UNREACHABLE();
+            ASSERT(false);
             return;
         }
 
@@ -155,7 +155,7 @@ struct TimeManager::Impl final {
         } else {
             if (standard_local_system_clock_core.SetCurrentTime(system_, posix_time) !=
                 ResultSuccess) {
-                UNREACHABLE();
+                ASSERT(false);
                 return;
             }
         }
@@ -170,7 +170,7 @@ struct TimeManager::Impl final {
 
         if (standard_network_system_clock_core.SetSystemClockContext(clock_context) !=
             ResultSuccess) {
-            UNREACHABLE();
+            ASSERT(false);
             return;
         }
 
@@ -183,7 +183,7 @@ struct TimeManager::Impl final {
                                       Clock::SteadyClockTimePoint steady_clock_time_point) {
         if (standard_user_system_clock_core.SetAutomaticCorrectionEnabled(
                 system_, is_automatic_correction_enabled) != ResultSuccess) {
-            UNREACHABLE();
+            ASSERT(false);
             return;
         }
 
@@ -203,7 +203,7 @@ struct TimeManager::Impl final {
         if (GetStandardLocalSystemClockCore()
                 .SetCurrentTime(system_, timespan.ToSeconds())
                 .IsError()) {
-            UNREACHABLE();
+            ASSERT(false);
             return;
         }
     }

src/core/hle/service/time/time_zone_manager.cpp

@@ -279,7 +279,7 @@ static constexpr int TransitionTime(int year, Rule rule, int offset) {
         break;
     }
     default:
-        UNREACHABLE();
+        ASSERT(false);
     }
     return value + rule.transition_time + offset;
 }

src/core/loader/nso.cpp

@@ -128,11 +128,10 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::KProcess& process, Core::
 
     // Apply patches if necessary
     if (pm && (pm->HasNSOPatch(nso_header.build_id) || Settings::values.dump_nso)) {
-        std::vector<u8> pi_header;
-        pi_header.insert(pi_header.begin(), reinterpret_cast<u8*>(&nso_header),
-                         reinterpret_cast<u8*>(&nso_header) + sizeof(NSOHeader));
-        pi_header.insert(pi_header.begin() + sizeof(NSOHeader), program_image.data(),
-                         program_image.data() + program_image.size());
+        std::vector<u8> pi_header(sizeof(NSOHeader) + program_image.size());
+        std::memcpy(pi_header.data(), &nso_header, sizeof(NSOHeader));
+        std::memcpy(pi_header.data() + sizeof(NSOHeader), program_image.data(),
+                    program_image.size());
 
         pi_header = pm->PatchNSO(pi_header, nso_file.GetName());
 

src/core/tools/freezer.cpp

@@ -25,7 +25,6 @@ u64 MemoryReadWidth(Core::Memory::Memory& memory, u32 width, VAddr addr) {
         return memory.Read64(addr);
     default:
         UNREACHABLE();
-        return 0;
     }
 }
 

src/shader_recompiler/frontend/maxwell/control_flow.h

@@ -58,7 +58,7 @@ public:
     [[nodiscard]] Stack Remove(Token token) const;
 
 private:
-    boost::container::small_vector<StackEntry, 3> entries;
+    std::vector<StackEntry> entries;
 };
 
 struct IndirectBranch {

src/shader_recompiler/frontend/maxwell/structured_control_flow.cpp

@@ -975,13 +975,7 @@ private:
     Environment& env;
     IR::AbstractSyntaxList& syntax_list;
     bool uses_demote_to_helper{};
-
-// TODO: C++20 Remove this when all compilers support constexpr std::vector
-#if __cpp_lib_constexpr_vector >= 201907
-    static constexpr Flow::Block dummy_flow_block;
-#else
     const Flow::Block dummy_flow_block;
-#endif
 };
 } // Anonymous namespace
 

src/video_core/command_classes/codecs/codec.cpp

@@ -224,7 +224,7 @@ void Codec::Decode() {
             vp9_hidden_frame = vp9_decoder->WasFrameHidden();
             return vp9_decoder->GetFrameBytes();
         default:
-            UNREACHABLE();
+            ASSERT(false);
             return std::vector<u8>{};
         }
     }();

src/video_core/command_classes/vic.cpp

@@ -228,7 +228,7 @@ void Vic::WriteYUVFrame(const AVFrame* frame, const VicConfig& config) {
         break;
     }
     default:
-        UNREACHABLE();
+        ASSERT(false);
         break;
     }
     gpu.MemoryManager().WriteBlock(output_surface_chroma_address, chroma_buffer.data(),

src/video_core/engines/maxwell_3d.h

@@ -202,7 +202,7 @@ public:
                 case Size::Size_11_11_10:
                     return 3;
                 default:
-                    UNREACHABLE();
+                    ASSERT(false);
                     return 1;
                 }
             }
@@ -238,7 +238,7 @@ public:
                 case Size::Size_11_11_10:
                     return 4;
                 default:
-                    UNREACHABLE();
+                    ASSERT(false);
                     return 1;
                 }
             }
@@ -274,7 +274,7 @@ public:
                 case Size::Size_11_11_10:
                     return "11_11_10";
                 default:
-                    UNREACHABLE();
+                    ASSERT(false);
                     return {};
                 }
             }
@@ -296,7 +296,7 @@ public:
                 case Type::Float:
                     return "FLOAT";
                 }
-                UNREACHABLE();
+                ASSERT(false);
                 return {};
             }
 
@@ -336,7 +336,7 @@ public:
                 case 3:
                     return {x3, y3};
                 default:
-                    UNREACHABLE();
+                    ASSERT(false);
                     return {0, 0};
                 }
             }
@@ -1193,7 +1193,7 @@ public:
                         case IndexFormat::UnsignedInt:
                             return 4;
                         }
-                        UNREACHABLE();
+                        ASSERT(false);
                         return 1;
                     }
 

src/video_core/engines/maxwell_dma.cpp

@@ -62,7 +62,7 @@ void MaxwellDMA::Launch() {
 
     if (!is_src_pitch && !is_dst_pitch) {
         // If both the source and the destination are in block layout, assert.
-        UNREACHABLE_MSG("Tiled->Tiled DMA transfers are not yet implemented");
+        UNIMPLEMENTED_MSG("Tiled->Tiled DMA transfers are not yet implemented");
         return;
     }
 
@@ -260,7 +260,7 @@ void MaxwellDMA::ReleaseSemaphore() {
         memory_manager.Write<u64>(address + 8, system.GPU().GetTicks());
         break;
     default:
-        UNREACHABLE_MSG("Unknown semaphore type: {}", static_cast<u32>(type.Value()));
+        ASSERT_MSG(false, "Unknown semaphore type: {}", static_cast<u32>(type.Value()));
     }
 }
 

src/video_core/gpu_thread.cpp

@@ -31,7 +31,8 @@ static void RunThread(std::stop_token stop_token, Core::System& system,
     VideoCore::RasterizerInterface* const rasterizer = renderer.ReadRasterizer();
 
     while (!stop_token.stop_requested()) {
-        CommandDataContainer next = state.queue.PopWait(stop_token);
+        CommandDataContainer next;
+        state.queue.Pop(next, stop_token);
         if (stop_token.stop_requested()) {
             break;
         }
@@ -49,7 +50,7 @@ static void RunThread(std::stop_token stop_token, Core::System& system,
         } else if (const auto* invalidate = std::get_if<InvalidateRegionCommand>(&next.data)) {
             rasterizer->OnCPUWrite(invalidate->addr, invalidate->size);
         } else {
-            UNREACHABLE();
+            ASSERT(false);
         }
         state.signaled_fence.store(next.fence);
         if (next.block) {

src/video_core/gpu_thread.h

@@ -10,7 +10,7 @@
 #include <thread>
 #include <variant>
 
-#include "common/threadsafe_queue.h"
+#include "common/bounded_threadsafe_queue.h"
 #include "video_core/framebuffer_config.h"
 
 namespace Tegra {
@@ -96,9 +96,9 @@ struct CommandDataContainer {
 
 /// Struct used to synchronize the GPU thread
 struct SynchState final {
-    using CommandQueue = Common::SPSCQueue<CommandDataContainer, true>;
+    using CommandQueue = Common::MPSCQueue<CommandDataContainer>;
     std::mutex write_lock;
-    CommandQueue queue;
+    CommandQueue queue{512}; // size must be 2^n
     u64 last_fence{};
     std::atomic<u64> signaled_fence{};
     std::condition_variable_any cv;

src/video_core/macro/macro.cpp

@@ -71,7 +71,7 @@ void MacroEngine::Execute(u32 method, const std::vector<u32>& parameters) {
                 }
             }
             if (!mid_method.has_value()) {
-                UNREACHABLE_MSG("Macro 0x{0:x} was not uploaded", method);
+                ASSERT_MSG(false, "Macro 0x{0:x} was not uploaded", method);
                 return;
             }
         }

src/video_core/macro/macro_interpreter.cpp

@@ -308,7 +308,6 @@ bool MacroInterpreterImpl::EvaluateBranchCondition(Macro::BranchCondition cond,
         return value != 0;
     }
     UNREACHABLE();
-    return true;
 }
 
 Macro::Opcode MacroInterpreterImpl::GetOpcode() const {

src/video_core/macro/macro_jit_x64.cpp

@@ -411,7 +411,7 @@ void MacroJITx64Impl::Compile_Branch(Macro::Opcode opcode) {
 
     Xbyak::Label end;
     auto value = Compile_GetRegister(opcode.src_a, eax);
-    test(value, value);
+    cmp(value, 0); // test(value, value);
     if (optimizer.has_delayed_pc) {
         switch (opcode.branch_condition) {
         case Macro::BranchCondition::Zero:

src/video_core/memory_manager.cpp

@@ -67,7 +67,7 @@ void MemoryManager::Unmap(GPUVAddr gpu_addr, std::size_t size) {
         ASSERT(it->first == gpu_addr);
         map_ranges.erase(it);
     } else {
-        UNREACHABLE_MSG("Unmapping non-existent GPU address=0x{:x}", gpu_addr);
+        ASSERT_MSG(false, "Unmapping non-existent GPU address=0x{:x}", gpu_addr);
     }
     const auto submapped_ranges = GetSubmappedRange(gpu_addr, size);
 
@@ -206,7 +206,7 @@ T MemoryManager::Read(GPUVAddr addr) const {
         return value;
     }
 
-    UNREACHABLE();
+    ASSERT(false);
 
     return {};
 }
@@ -219,7 +219,7 @@ void MemoryManager::Write(GPUVAddr addr, T data) {
         return;
     }
 
-    UNREACHABLE();
+    ASSERT(false);
 }
 
 template u8 MemoryManager::Read<u8>(GPUVAddr addr) const;

src/video_core/renderer_opengl/gl_graphics_pipeline.cpp

@@ -48,7 +48,7 @@ GLenum Stage(size_t stage_index) {
     case 4:
         return GL_FRAGMENT_SHADER;
     }
-    UNREACHABLE_MSG("{}", stage_index);
+    ASSERT_MSG(false, "{}", stage_index);
     return GL_NONE;
 }
 
@@ -65,7 +65,7 @@ GLenum AssemblyStage(size_t stage_index) {
     case 4:
         return GL_FRAGMENT_PROGRAM_NV;
     }
-    UNREACHABLE_MSG("{}", stage_index);
+    ASSERT_MSG(false, "{}", stage_index);
     return GL_NONE;
 }
 

src/video_core/renderer_opengl/gl_shader_cache.cpp

@@ -85,7 +85,7 @@ Shader::RuntimeInfo MakeRuntimeInfo(const GraphicsPipelineKey& key,
             case Maxwell::TessellationPrimitive::Quads:
                 return Shader::TessPrimitive::Quads;
             }
-            UNREACHABLE();
+            ASSERT(false);
             return Shader::TessPrimitive::Triangles;
         }();
         info.tess_spacing = [&] {
@@ -97,7 +97,7 @@ Shader::RuntimeInfo MakeRuntimeInfo(const GraphicsPipelineKey& key,
             case Maxwell::TessellationSpacing::FractionalEven:
                 return Shader::TessSpacing::FractionalEven;
             }
-            UNREACHABLE();
+            ASSERT(false);
             return Shader::TessSpacing::Equal;
         }();
         break;

src/video_core/renderer_opengl/gl_texture_cache.cpp

@@ -83,7 +83,7 @@ GLenum ImageTarget(const VideoCommon::ImageInfo& info) {
     case ImageType::Buffer:
         return GL_TEXTURE_BUFFER;
     }
-    UNREACHABLE_MSG("Invalid image type={}", info.type);
+    ASSERT_MSG(false, "Invalid image type={}", info.type);
     return GL_NONE;
 }
 
@@ -107,7 +107,7 @@ GLenum ImageTarget(Shader::TextureType type, int num_samples = 1) {
     case Shader::TextureType::Buffer:
         return GL_TEXTURE_BUFFER;
     }
-    UNREACHABLE_MSG("Invalid image view type={}", type);
+    ASSERT_MSG(false, "Invalid image view type={}", type);
     return GL_NONE;
 }
 
@@ -119,7 +119,7 @@ GLenum TextureMode(PixelFormat format, bool is_first) {
     case PixelFormat::S8_UINT_D24_UNORM:
         return is_first ? GL_STENCIL_INDEX : GL_DEPTH_COMPONENT;
     default:
-        UNREACHABLE();
+        ASSERT(false);
         return GL_DEPTH_COMPONENT;
     }
 }
@@ -140,7 +140,7 @@ GLint Swizzle(SwizzleSource source) {
     case SwizzleSource::OneFloat:
         return GL_ONE;
     }
-    UNREACHABLE_MSG("Invalid swizzle source={}", source);
+    ASSERT_MSG(false, "Invalid swizzle source={}", source);
     return GL_NONE;
 }
 
@@ -197,7 +197,7 @@ GLint ConvertA5B5G5R1_UNORM(SwizzleSource source) {
     case SwizzleSource::OneFloat:
         return GL_ONE;
     }
-    UNREACHABLE_MSG("Invalid swizzle source={}", source);
+    ASSERT_MSG(false, "Invalid swizzle source={}", source);
     return GL_NONE;
 }
 
@@ -381,10 +381,10 @@ OGLTexture MakeImage(const VideoCommon::ImageInfo& info, GLenum gl_internal_form
         glTextureStorage3D(handle, gl_num_levels, gl_internal_format, width, height, depth);
         break;
     case GL_TEXTURE_BUFFER:
-        UNREACHABLE();
+        ASSERT(false);
         break;
     default:
-        UNREACHABLE_MSG("Invalid target=0x{:x}", target);
+        ASSERT_MSG(false, "Invalid target=0x{:x}", target);
         break;
     }
     return texture;
@@ -420,7 +420,7 @@ OGLTexture MakeImage(const VideoCommon::ImageInfo& info, GLenum gl_internal_form
     case Shader::ImageFormat::R32G32B32A32_UINT:
         return GL_RGBA32UI;
     }
-    UNREACHABLE_MSG("Invalid image format={}", format);
+    ASSERT_MSG(false, "Invalid image format={}", format);
     return GL_R32UI;
 }
 
@@ -579,7 +579,7 @@ void TextureCacheRuntime::EmulateCopyImage(Image& dst, Image& src,
     } else if (IsPixelFormatBGR(dst.info.format) || IsPixelFormatBGR(src.info.format)) {
         format_conversion_pass.ConvertImage(dst, src, copies);
     } else {
-        UNREACHABLE();
+        ASSERT(false);
     }
 }
 
@@ -620,7 +620,7 @@ void TextureCacheRuntime::AccelerateImageUpload(Image& image, const ImageBufferM
     case ImageType::Linear:
         return util_shaders.PitchUpload(image, map, swizzles);
     default:
-        UNREACHABLE();
+        ASSERT(false);
         break;
     }
 }
@@ -639,7 +639,7 @@ FormatProperties TextureCacheRuntime::FormatInfo(ImageType type, GLenum internal
     case ImageType::e3D:
         return format_properties[2].at(internal_format);
     default:
-        UNREACHABLE();
+        ASSERT(false);
         return FormatProperties{};
     }
 }
@@ -888,7 +888,7 @@ void Image::CopyBufferToImage(const VideoCommon::BufferImageCopy& copy, size_t b
         }
         break;
     default:
-        UNREACHABLE();
+        ASSERT(false);
     }
 }
 
@@ -924,7 +924,7 @@ void Image::CopyImageToBuffer(const VideoCommon::BufferImageCopy& copy, size_t b
         depth = copy.image_extent.depth;
         break;
     default:
-        UNREACHABLE();
+        ASSERT(false);
     }
     // Compressed formats don't have a pixel format or type
     const bool is_compressed = gl_format == GL_NONE;
@@ -950,7 +950,7 @@ void Image::Scale(bool up_scale) {
         case SurfaceType::DepthStencil:
             return GL_DEPTH_STENCIL_ATTACHMENT;
         default:
-            UNREACHABLE();
+            ASSERT(false);
             return GL_COLOR_ATTACHMENT0;
         }
     }();
@@ -965,7 +965,7 @@ void Image::Scale(bool up_scale) {
         case SurfaceType::DepthStencil:
             return GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT;
         default:
-            UNREACHABLE();
+            ASSERT(false);
             return GL_COLOR_BUFFER_BIT;
         }
     }();
@@ -980,7 +980,7 @@ void Image::Scale(bool up_scale) {
         case SurfaceType::DepthStencil:
             return 3;
         default:
-            UNREACHABLE();
+            ASSERT(false);
             return 0;
         }
     }();
@@ -1045,7 +1045,7 @@ bool Image::ScaleUp(bool ignore) {
         return false;
     }
     if (info.type == ImageType::Linear) {
-        UNREACHABLE();
+        ASSERT(false);
         return false;
     }
     flags |= ImageFlagBits::Rescaled;
@@ -1139,7 +1139,7 @@ ImageView::ImageView(TextureCacheRuntime& runtime, const VideoCommon::ImageViewI
         UNIMPLEMENTED();
         break;
     case ImageViewType::Buffer:
-        UNREACHABLE();
+        ASSERT(false);
         break;
     }
     switch (info.type) {
@@ -1319,7 +1319,7 @@ Framebuffer::Framebuffer(TextureCacheRuntime& runtime, std::span<ImageView*, NUM
             buffer_bits |= GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT;
             break;
         default:
-            UNREACHABLE();
+            ASSERT(false);
             buffer_bits |= GL_DEPTH_BUFFER_BIT;
             break;
         }

src/video_core/renderer_opengl/maxwell_to_gl.h

@@ -206,7 +206,7 @@ inline GLenum IndexFormat(Maxwell::IndexFormat index_format) {
     case Maxwell::IndexFormat::UnsignedInt:
         return GL_UNSIGNED_INT;
     }
-    UNREACHABLE_MSG("Invalid index_format={}", index_format);
+    ASSERT_MSG(false, "Invalid index_format={}", index_format);
     return {};
 }
 
@@ -243,7 +243,7 @@ inline GLenum PrimitiveTopology(Maxwell::PrimitiveTopology topology) {
     case Maxwell::PrimitiveTopology::Patches:
         return GL_PATCHES;
     }
-    UNREACHABLE_MSG("Invalid topology={}", topology);
+    ASSERT_MSG(false, "Invalid topology={}", topology);
     return GL_POINTS;
 }
 
@@ -271,8 +271,8 @@ inline GLenum TextureFilterMode(Tegra::Texture::TextureFilter filter_mode,
         }
         break;
     }
-    UNREACHABLE_MSG("Invalid texture filter mode={} and mipmap filter mode={}", filter_mode,
-                    mipmap_filter_mode);
+    ASSERT_MSG(false, "Invalid texture filter mode={} and mipmap filter mode={}", filter_mode,
+               mipmap_filter_mode);
     return GL_NEAREST;
 }
 
@@ -550,7 +550,7 @@ inline GLenum PolygonMode(Maxwell::PolygonMode polygon_mode) {
     case Maxwell::PolygonMode::Fill:
         return GL_FILL;
     }
-    UNREACHABLE_MSG("Invalid polygon mode={}", polygon_mode);
+    ASSERT_MSG(false, "Invalid polygon mode={}", polygon_mode);
     return GL_FILL;
 }
 
@@ -563,7 +563,7 @@ inline GLenum ReductionFilter(Tegra::Texture::SamplerReduction filter) {
     case Tegra::Texture::SamplerReduction::Max:
         return GL_MAX;
     }
-    UNREACHABLE_MSG("Invalid reduction filter={}", static_cast<int>(filter));
+    ASSERT_MSG(false, "Invalid reduction filter={}", static_cast<int>(filter));
     return GL_WEIGHTED_AVERAGE_ARB;
 }
 

src/video_core/renderer_opengl/renderer_opengl.cpp

@@ -79,7 +79,7 @@ const char* GetSource(GLenum source) {
     case GL_DEBUG_SOURCE_OTHER:
         return "OTHER";
     default:
-        UNREACHABLE();
+        ASSERT(false);
         return "Unknown source";
     }
 }
@@ -101,7 +101,7 @@ const char* GetType(GLenum type) {
     case GL_DEBUG_TYPE_MARKER:
         return "MARKER";
     default:
-        UNREACHABLE();
+        ASSERT(false);
         return "Unknown type";
     }
 }

src/video_core/renderer_opengl/util_shaders.cpp

@@ -282,7 +282,7 @@ GLenum StoreFormat(u32 bytes_per_block) {
     case 16:
         return GL_RGBA32UI;
     }
-    UNREACHABLE();
+    ASSERT(false);
     return GL_R8UI;
 }
 

src/video_core/renderer_vulkan/maxwell_to_vk.cpp

@@ -25,7 +25,7 @@ VkFilter Filter(Tegra::Texture::TextureFilter filter) {
     case Tegra::Texture::TextureFilter::Linear:
         return VK_FILTER_LINEAR;
     }
-    UNREACHABLE_MSG("Invalid sampler filter={}", filter);
+    ASSERT_MSG(false, "Invalid sampler filter={}", filter);
     return {};
 }
 
@@ -42,7 +42,7 @@ VkSamplerMipmapMode MipmapMode(Tegra::Texture::TextureMipmapFilter mipmap_filter
     case Tegra::Texture::TextureMipmapFilter::Linear:
         return VK_SAMPLER_MIPMAP_MODE_LINEAR;
     }
-    UNREACHABLE_MSG("Invalid sampler mipmap mode={}", mipmap_filter);
+    ASSERT_MSG(false, "Invalid sampler mipmap mode={}", mipmap_filter);
     return {};
 }
 
@@ -70,7 +70,7 @@ VkSamplerAddressMode WrapMode(const Device& device, Tegra::Texture::WrapMode wra
         case Tegra::Texture::TextureFilter::Linear:
             return VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER;
         }
-        UNREACHABLE();
+        ASSERT(false);
         return VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
     case Tegra::Texture::WrapMode::MirrorOnceClampToEdge:
         return VK_SAMPLER_ADDRESS_MODE_MIRROR_CLAMP_TO_EDGE;
@@ -744,7 +744,7 @@ VkViewportCoordinateSwizzleNV ViewportSwizzle(Maxwell::ViewportSwizzle swizzle)
     case Maxwell::ViewportSwizzle::NegativeW:
         return VK_VIEWPORT_COORDINATE_SWIZZLE_NEGATIVE_W_NV;
     }
-    UNREACHABLE_MSG("Invalid swizzle={}", swizzle);
+    ASSERT_MSG(false, "Invalid swizzle={}", swizzle);
     return {};
 }
 
@@ -757,7 +757,7 @@ VkSamplerReductionMode SamplerReduction(Tegra::Texture::SamplerReduction reducti
     case Tegra::Texture::SamplerReduction::Max:
         return VK_SAMPLER_REDUCTION_MODE_MAX_EXT;
     }
-    UNREACHABLE_MSG("Invalid sampler mode={}", static_cast<int>(reduction));
+    ASSERT_MSG(false, "Invalid sampler mode={}", static_cast<int>(reduction));
     return VK_SAMPLER_REDUCTION_MODE_WEIGHTED_AVERAGE_EXT;
 }
 
@@ -780,7 +780,7 @@ VkSampleCountFlagBits MsaaMode(Tegra::Texture::MsaaMode msaa_mode) {
     case Tegra::Texture::MsaaMode::Msaa4x4:
         return VK_SAMPLE_COUNT_16_BIT;
     default:
-        UNREACHABLE_MSG("Invalid msaa_mode={}", static_cast<int>(msaa_mode));
+        ASSERT_MSG(false, "Invalid msaa_mode={}", static_cast<int>(msaa_mode));
         return VK_SAMPLE_COUNT_1_BIT;
     }
 }

src/video_core/renderer_vulkan/vk_buffer_cache.cpp

@@ -46,7 +46,7 @@ size_t BytesPerIndex(VkIndexType index_type) {
     case VK_INDEX_TYPE_UINT32:
         return 4;
     default:
-        UNREACHABLE_MSG("Invalid index type={}", index_type);
+        ASSERT_MSG(false, "Invalid index type={}", index_type);
         return 1;
     }
 }
@@ -366,7 +366,7 @@ void BufferCacheRuntime::ReserveQuadArrayLUT(u32 num_indices, bool wait_for_idle
                 std::memcpy(staging_data, MakeQuadIndices<u32>(quad, first).data(), quad_size);
                 break;
             default:
-                UNREACHABLE();
+                ASSERT(false);
                 break;
             }
             staging_data += quad_size;

src/video_core/renderer_vulkan/vk_compute_pass.cpp

@@ -265,7 +265,7 @@ std::pair<VkBuffer, VkDeviceSize> QuadIndexedPass::Assemble(
         case Tegra::Engines::Maxwell3D::Regs::IndexFormat::UnsignedInt:
             return 2;
         }
-        UNREACHABLE();
+        ASSERT(false);
         return 2;
     }();
     const u32 input_size = num_vertices << index_shift;
@@ -333,7 +333,7 @@ void ASTCDecoderPass::Assemble(Image& image, const StagingBufferRef& map,
             const VkImageMemoryBarrier image_barrier{
                 .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
                 .pNext = nullptr,
-                .srcAccessMask = is_initialized ? VK_ACCESS_SHADER_WRITE_BIT : VkAccessFlags{},
+                .srcAccessMask = is_initialized ? VK_ACCESS_SHADER_WRITE_BIT : VK_ACCESS_NONE,
                 .dstAccessMask = VK_ACCESS_SHADER_READ_BIT | VK_ACCESS_SHADER_WRITE_BIT,
                 .oldLayout = is_initialized ? VK_IMAGE_LAYOUT_GENERAL : VK_IMAGE_LAYOUT_UNDEFINED,
                 .newLayout = VK_IMAGE_LAYOUT_GENERAL,

src/video_core/renderer_vulkan/vk_pipeline_cache.cpp

@@ -174,7 +174,7 @@ Shader::RuntimeInfo MakeRuntimeInfo(std::span<const Shader::IR::Program> program
             case Maxwell::TessellationPrimitive::Quads:
                 return Shader::TessPrimitive::Quads;
             }
-            UNREACHABLE();
+            ASSERT(false);
             return Shader::TessPrimitive::Triangles;
         }();
         info.tess_spacing = [&] {
@@ -187,7 +187,7 @@ Shader::RuntimeInfo MakeRuntimeInfo(std::span<const Shader::IR::Program> program
             case Maxwell::TessellationSpacing::FractionalEven:
                 return Shader::TessSpacing::FractionalEven;
             }
-            UNREACHABLE();
+            ASSERT(false);
             return Shader::TessSpacing::Equal;
         }();
         break;

src/video_core/renderer_vulkan/vk_staging_buffer_pool.cpp

@@ -263,7 +263,7 @@ StagingBufferPool::StagingBuffersCache& StagingBufferPool::GetCache(MemoryUsage
     case MemoryUsage::Download:
         return download_cache;
     default:
-        UNREACHABLE_MSG("Invalid memory usage={}", usage);
+        ASSERT_MSG(false, "Invalid memory usage={}", usage);
         return upload_cache;
     }
 }

src/video_core/renderer_vulkan/vk_texture_cache.cpp

@@ -70,7 +70,7 @@ constexpr VkBorderColor ConvertBorderColor(const std::array<float, 4>& color) {
     case ImageType::Buffer:
         break;
     }
-    UNREACHABLE_MSG("Invalid image type={}", type);
+    ASSERT_MSG(false, "Invalid image type={}", type);
     return {};
 }
 
@@ -87,7 +87,7 @@ constexpr VkBorderColor ConvertBorderColor(const std::array<float, 4>& color) {
     case 16:
         return VK_SAMPLE_COUNT_16_BIT;
     default:
-        UNREACHABLE_MSG("Invalid number of samples={}", num_samples);
+        ASSERT_MSG(false, "Invalid number of samples={}", num_samples);
         return VK_SAMPLE_COUNT_1_BIT;
     }
 }
@@ -107,7 +107,7 @@ constexpr VkBorderColor ConvertBorderColor(const std::array<float, 4>& color) {
             usage |= VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
             break;
         default:
-            UNREACHABLE_MSG("Invalid surface type");
+            ASSERT_MSG(false, "Invalid surface type");
         }
     }
     if (info.storage) {
@@ -179,7 +179,7 @@ constexpr VkBorderColor ConvertBorderColor(const std::array<float, 4>& color) {
     case VideoCore::Surface::SurfaceType::DepthStencil:
         return VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT;
     default:
-        UNREACHABLE_MSG("Invalid surface type");
+        ASSERT_MSG(false, "Invalid surface type");
         return VkImageAspectFlags{};
     }
 }
@@ -221,7 +221,7 @@ constexpr VkBorderColor ConvertBorderColor(const std::array<float, 4>& color) {
     case SwizzleSource::OneInt:
         return VK_COMPONENT_SWIZZLE_ONE;
     }
-    UNREACHABLE_MSG("Invalid swizzle={}", swizzle);
+    ASSERT_MSG(false, "Invalid swizzle={}", swizzle);
     return VK_COMPONENT_SWIZZLE_ZERO;
 }
 
@@ -242,10 +242,10 @@ constexpr VkBorderColor ConvertBorderColor(const std::array<float, 4>& color) {
     case Shader::TextureType::ColorArrayCube:
         return VK_IMAGE_VIEW_TYPE_CUBE_ARRAY;
     case Shader::TextureType::Buffer:
-        UNREACHABLE_MSG("Texture buffers can't be image views");
+        ASSERT_MSG(false, "Texture buffers can't be image views");
         return VK_IMAGE_VIEW_TYPE_1D;
     }
-    UNREACHABLE_MSG("Invalid image view type={}", type);
+    ASSERT_MSG(false, "Invalid image view type={}", type);
     return VK_IMAGE_VIEW_TYPE_2D;
 }
 
@@ -269,10 +269,10 @@ constexpr VkBorderColor ConvertBorderColor(const std::array<float, 4>& color) {
         UNIMPLEMENTED_MSG("Rect image view");
         return VK_IMAGE_VIEW_TYPE_2D;
     case VideoCommon::ImageViewType::Buffer:
-        UNREACHABLE_MSG("Texture buffers can't be image views");
+        ASSERT_MSG(false, "Texture buffers can't be image views");
         return VK_IMAGE_VIEW_TYPE_1D;
     }
-    UNREACHABLE_MSG("Invalid image view type={}", type);
+    ASSERT_MSG(false, "Invalid image view type={}", type);
     return VK_IMAGE_VIEW_TYPE_2D;
 }
 
@@ -644,7 +644,7 @@ struct RangedBarrierRange {
     case Shader::ImageFormat::R32G32B32A32_UINT:
         return VK_FORMAT_R32G32B32A32_UINT;
     }
-    UNREACHABLE_MSG("Invalid image format={}", format);
+    ASSERT_MSG(false, "Invalid image format={}", format);
     return VK_FORMAT_R32_UINT;
 }
 
@@ -1596,7 +1596,7 @@ ImageView::ImageView(TextureCacheRuntime& runtime, const VideoCommon::ImageViewI
         UNIMPLEMENTED();
         break;
     case VideoCommon::ImageViewType::Buffer:
-        UNREACHABLE();
+        ASSERT(false);
         break;
     }
 }
@@ -1822,7 +1822,7 @@ void TextureCacheRuntime::AccelerateImageUpload(
     if (IsPixelFormatASTC(image.info.format)) {
         return astc_decoder_pass.Assemble(image, map, swizzles);
     }
-    UNREACHABLE();
+    ASSERT(false);
 }
 
 } // namespace Vulkan

src/video_core/shader_environment.cpp

@@ -280,7 +280,7 @@ GraphicsEnvironment::GraphicsEnvironment(Tegra::Engines::Maxwell3D& maxwell3d_,
         stage_index = 4;
         break;
     default:
-        UNREACHABLE_MSG("Invalid program={}", program);
+        ASSERT_MSG(false, "Invalid program={}", program);
         break;
     }
     const u64 local_size{sph.LocalMemorySize()};

src/video_core/surface.cpp

@@ -29,7 +29,7 @@ SurfaceTarget SurfaceTargetFromTextureType(Tegra::Texture::TextureType texture_t
         return SurfaceTarget::Texture2DArray;
     default:
         LOG_CRITICAL(HW_GPU, "Unimplemented texture_type={}", texture_type);
-        UNREACHABLE();
+        ASSERT(false);
         return SurfaceTarget::Texture2D;
     }
 }
@@ -48,7 +48,7 @@ bool SurfaceTargetIsLayered(SurfaceTarget target) {
         return true;
     default:
         LOG_CRITICAL(HW_GPU, "Unimplemented surface_target={}", target);
-        UNREACHABLE();
+        ASSERT(false);
         return false;
     }
 }
@@ -67,7 +67,7 @@ bool SurfaceTargetIsArray(SurfaceTarget target) {
         return true;
     default:
         LOG_CRITICAL(HW_GPU, "Unimplemented surface_target={}", target);
-        UNREACHABLE();
+        ASSERT(false);
         return false;
     }
 }

src/video_core/texture_cache/image_info.cpp

@@ -94,7 +94,7 @@ ImageInfo::ImageInfo(const TICEntry& config) noexcept {
         resources.layers = 1;
         break;
     default:
-        UNREACHABLE_MSG("Invalid texture_type={}", static_cast<int>(config.texture_type.Value()));
+        ASSERT_MSG(false, "Invalid texture_type={}", static_cast<int>(config.texture_type.Value()));
         break;
     }
     if (type != ImageType::Linear) {

src/video_core/texture_cache/image_view_info.cpp

@@ -71,7 +71,7 @@ ImageViewInfo::ImageViewInfo(const TICEntry& config, s32 base_layer) noexcept
         range.extent.layers = config.Depth() * 6;
         break;
     default:
-        UNREACHABLE_MSG("Invalid texture_type={}", static_cast<int>(config.texture_type.Value()));
+        ASSERT_MSG(false, "Invalid texture_type={}", static_cast<int>(config.texture_type.Value()));
         break;
     }
 }

src/video_core/texture_cache/samples_helper.h

@@ -23,7 +23,7 @@ namespace VideoCommon {
     case 16:
         return {2, 2};
     }
-    UNREACHABLE_MSG("Invalid number of samples={}", num_samples);
+    ASSERT_MSG(false, "Invalid number of samples={}", num_samples);
     return {1, 1};
 }
 
@@ -47,7 +47,7 @@ namespace VideoCommon {
     case MsaaMode::Msaa4x4:
         return 16;
     }
-    UNREACHABLE_MSG("Invalid MSAA mode={}", static_cast<int>(msaa_mode));
+    ASSERT_MSG(false, "Invalid MSAA mode={}", static_cast<int>(msaa_mode));
     return 1;
 }
 

src/video_core/texture_cache/texture_cache.h

@@ -1485,14 +1485,14 @@ void TextureCache<P>::UnregisterImage(ImageId image_id) {
             std::unordered_map<u64, std::vector<ImageId>, IdentityHash<u64>>& selected_page_table) {
             const auto page_it = selected_page_table.find(page);
             if (page_it == selected_page_table.end()) {
-                UNREACHABLE_MSG("Unregistering unregistered page=0x{:x}", page << PAGE_BITS);
+                ASSERT_MSG(false, "Unregistering unregistered page=0x{:x}", page << PAGE_BITS);
                 return;
             }
             std::vector<ImageId>& image_ids = page_it->second;
             const auto vector_it = std::ranges::find(image_ids, image_id);
             if (vector_it == image_ids.end()) {
-                UNREACHABLE_MSG("Unregistering unregistered image in page=0x{:x}",
-                                page << PAGE_BITS);
+                ASSERT_MSG(false, "Unregistering unregistered image in page=0x{:x}",
+                           page << PAGE_BITS);
                 return;
             }
             image_ids.erase(vector_it);
@@ -1504,14 +1504,14 @@ void TextureCache<P>::UnregisterImage(ImageId image_id) {
         ForEachCPUPage(image.cpu_addr, image.guest_size_bytes, [this, map_id](u64 page) {
             const auto page_it = page_table.find(page);
             if (page_it == page_table.end()) {
-                UNREACHABLE_MSG("Unregistering unregistered page=0x{:x}", page << PAGE_BITS);
+                ASSERT_MSG(false, "Unregistering unregistered page=0x{:x}", page << PAGE_BITS);
                 return;
             }
             std::vector<ImageMapId>& image_map_ids = page_it->second;
             const auto vector_it = std::ranges::find(image_map_ids, map_id);
             if (vector_it == image_map_ids.end()) {
-                UNREACHABLE_MSG("Unregistering unregistered image in page=0x{:x}",
-                                page << PAGE_BITS);
+                ASSERT_MSG(false, "Unregistering unregistered image in page=0x{:x}",
+                           page << PAGE_BITS);
                 return;
             }
             image_map_ids.erase(vector_it);
@@ -1532,7 +1532,7 @@ void TextureCache<P>::UnregisterImage(ImageId image_id) {
         ForEachCPUPage(cpu_addr, size, [this, image_id](u64 page) {
             const auto page_it = page_table.find(page);
             if (page_it == page_table.end()) {
-                UNREACHABLE_MSG("Unregistering unregistered page=0x{:x}", page << PAGE_BITS);
+                ASSERT_MSG(false, "Unregistering unregistered page=0x{:x}", page << PAGE_BITS);
                 return;
             }
             std::vector<ImageMapId>& image_map_ids = page_it->second;
@@ -1616,15 +1616,15 @@ void TextureCache<P>::DeleteImage(ImageId image_id, bool immediate_delete) {
     const GPUVAddr gpu_addr = image.gpu_addr;
     const auto alloc_it = image_allocs_table.find(gpu_addr);
     if (alloc_it == image_allocs_table.end()) {
-        UNREACHABLE_MSG("Trying to delete an image alloc that does not exist in address 0x{:x}",
-                        gpu_addr);
+        ASSERT_MSG(false, "Trying to delete an image alloc that does not exist in address 0x{:x}",
+                   gpu_addr);
         return;
     }
     const ImageAllocId alloc_id = alloc_it->second;
     std::vector<ImageId>& alloc_images = slot_image_allocs[alloc_id].images;
     const auto alloc_image_it = std::ranges::find(alloc_images, image_id);
     if (alloc_image_it == alloc_images.end()) {
-        UNREACHABLE_MSG("Trying to delete an image that does not exist");
+        ASSERT_MSG(false, "Trying to delete an image that does not exist");
         return;
     }
     ASSERT_MSG(False(image.flags & ImageFlagBits::Tracked), "Image was not untracked");