early-access version 3441

README.md

@@ -1,7 +1,7 @@
 yuzu emulator early access
 =============
 
-This is the source code for early-access 3440.
+This is the source code for early-access 3441.
 
 ## Legal Notice
 

src/common/CMakeLists.txt

@@ -91,6 +91,7 @@ add_library(common STATIC
     multi_level_page_table.h
     nvidia_flags.cpp
     nvidia_flags.h
+    overflow.h
     page_table.cpp
     page_table.h
     param_package.cpp

src/common/bit_cast.h

@@ -3,19 +3,21 @@
 
 #pragma once
 
-#include <cstring>
+#include <version>
-#include <type_traits>
+
+#ifdef __cpp_lib_bit_cast
+#include <bit>
+#endif
 
 namespace Common {
 
 template <typename To, typename From>
-[[nodiscard]] std::enable_if_t<sizeof(To) == sizeof(From) && std::is_trivially_copyable_v<From> &&
+constexpr inline To BitCast(const From& from) {
-                                   std::is_trivially_copyable_v<To>,
+#ifdef __cpp_lib_bit_cast
-                               To>
+    return std::bit_cast<To>(from);
-BitCast(const From& src) noexcept {
+#else
-    To dst;
+    return __builtin_bit_cast(To, from);
-    std::memcpy(&dst, &src, sizeof(To));
+#endif
-    return dst;
 }
 
 } // namespace Common

src/common/overflow.h

@@ -0,0 +1,22 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <type_traits>
+#include "bit_cast.h"
+
+namespace Common {
+
+template <typename T>
+    requires(std::is_integral_v<T> && std::is_signed_v<T>)
+inline T WrappingAdd(T lhs, T rhs) {
+    using U = std::make_unsigned_t<T>;
+
+    U lhs_u = BitCast<U>(lhs);
+    U rhs_u = BitCast<U>(rhs);
+
+    return BitCast<T>(lhs_u + rhs_u);
+}
+
+} // namespace Common

src/core/hle/kernel/k_address_space_info.cpp

@@ -44,11 +44,11 @@ const KAddressSpaceInfo& GetAddressSpaceInfo(size_t width, KAddressSpaceInfo::Ty
 
 } // namespace
 
-uintptr_t KAddressSpaceInfo::GetAddressSpaceStart(size_t width, KAddressSpaceInfo::Type type) {
+std::size_t KAddressSpaceInfo::GetAddressSpaceStart(size_t width, KAddressSpaceInfo::Type type) {
     return GetAddressSpaceInfo(width, type).address;
 }
 
-size_t KAddressSpaceInfo::GetAddressSpaceSize(size_t width, KAddressSpaceInfo::Type type) {
+std::size_t KAddressSpaceInfo::GetAddressSpaceSize(size_t width, KAddressSpaceInfo::Type type) {
     return GetAddressSpaceInfo(width, type).size;
 }
 

src/core/hle/kernel/k_address_space_info.h

@@ -18,7 +18,7 @@ struct KAddressSpaceInfo final {
         Count,
     };
 
-    static u64 GetAddressSpaceStart(std::size_t width, Type type);
+    static std::size_t GetAddressSpaceStart(std::size_t width, Type type);
     static std::size_t GetAddressSpaceSize(std::size_t width, Type type);
 
     const std::size_t bit_width{};

src/core/hle/kernel/k_device_address_space.h

@@ -21,9 +21,9 @@ public:
     ~KDeviceAddressSpace();
 
     Result Initialize(u64 address, u64 size);
-    void Finalize();
+    void Finalize() override;
 
-    bool IsInitialized() const {
+    bool IsInitialized() const override {
         return m_is_initialized;
     }
     static void PostDestroy(uintptr_t arg) {}

src/core/hle/kernel/k_resource_limit.cpp

@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "common/assert.h"
+#include "common/overflow.h"
 #include "core/core.h"
 #include "core/core_timing.h"
 #include "core/hle/kernel/k_resource_limit.h"
@@ -104,7 +105,7 @@ bool KResourceLimit::Reserve(LimitableResource which, s64 value, s64 timeout) {
         ASSERT(current_hints[index] <= current_values[index]);
 
         // If we would overflow, don't allow to succeed.
-        if (current_values[index] + value <= current_values[index]) {
+        if (Common::WrappingAdd(current_values[index], value) <= current_values[index]) {
             break;
         }
 

src/video_core/renderer_vulkan/vk_buffer_cache.cpp

@@ -238,7 +238,7 @@ private:
         return indices;
     }
 
-    void MakeAndUpdateIndices(u8* staging_data, size_t quad_size, u32 quad, u32 first) {
+    void MakeAndUpdateIndices(u8* staging_data, size_t quad_size, u32 quad, u32 first) override {
         switch (index_type) {
         case VK_INDEX_TYPE_UINT8_EXT:
             std::memcpy(staging_data, MakeIndices<u8>(quad, first).data(), quad_size);
@@ -278,7 +278,7 @@ private:
         return indices;
     }
 
-    void MakeAndUpdateIndices(u8* staging_data, size_t quad_size, u32 quad, u32 first) {
+    void MakeAndUpdateIndices(u8* staging_data, size_t quad_size, u32 quad, u32 first) override {
         switch (index_type) {
         case VK_INDEX_TYPE_UINT8_EXT:
             std::memcpy(staging_data, MakeIndices<u8>(quad, first).data(), quad_size);