TEST

.patch/boost/0001-clang-cl.patch

@@ -0,0 +1,13 @@
+diff --git a/libs/cobalt/include/boost/cobalt/concepts.hpp b/libs/cobalt/include/boost/cobalt/concepts.hpp
+index d49f2ec..a9bdb80 100644
+--- a/libs/cobalt/include/boost/cobalt/concepts.hpp
++++ b/libs/cobalt/include/boost/cobalt/concepts.hpp
+@@ -62,7 +62,7 @@ struct enable_awaitables
+ template <typename T>
+ concept with_get_executor = requires (T& t)
+ {
+-  {t.get_executor()} -> asio::execution::executor;
++  t.get_executor();
+ };
+ 
+ 

CMakeLists.txt

@@ -417,9 +417,12 @@ AddJsonPackage(boost)
 set(BOOST_NO_HEADERS ${Boost_ADDED})
 
 if (Boost_ADDED)
-    add_compile_definitions(YUZU_BOOST_v1)
+    if (MSVC OR ANDROID)
+        add_compile_definitions(YUZU_BOOST_v1)
+    endif()
+
     if (NOT MSVC OR CXX_CLANG)
-        # solaris sucks
+        # boost sucks
         if (SOLARIS)
             add_compile_options($<$<COMPILE_LANGUAGE:C,CXX>:-pthreads>)
         endif()
@@ -428,7 +431,8 @@ if (Boost_ADDED)
         target_compile_options(boost_icl INTERFACE $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-shadow>)
         target_compile_options(boost_asio INTERFACE
             $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-conversion>
-            $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-implicit-fallthrough>)
+            $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-implicit-fallthrough>
+        )
     endif()
 endif()
 

cpmfile.json

@@ -5,25 +5,23 @@
         "repo": "lioncash/biscuit",
         "version": "v0.19.0"
     },
-    "atmosphere_zstd_bic": {
-        "hash": "204f7573ea40de2878759c7ff5b2c016111fc29ae8574df50a3a0db9018c3b012f9040ea7466559130424d4335f2dfd6d7abfdc4d4d67e8a34531b8284f0cc6a",
-        "repo": "Atmosphere-NX/Atmosphere",
-        "version": "3ace80cc7b87e1837fccca1522801bbf6fddc6aa"
-    },
     "boost": {
-        "artifact": "boost-%VERSION%.tar.zst",
+        "artifact": "%VERSION%-cmake.tar.xz",
         "find_args": "CONFIG OPTIONAL_COMPONENTS headers context system fiber filesystem",
-        "hash": "681d97be4386767662e230b2e7c9754d45e709cc5db4e747c23c27d1f5b0e87770bdf19b0bc44dcb0e8349324887bbb8fffb432098f4d0ce74a5043021a90afc",
+        "hash": "6ae6e94664fe7f2fb01976b59b276ac5df8085c7503fa829d810fbfe495960cfec44fa2c36e2cb23480bc19c956ed199d4952b02639a00a6c07625d4e7130c2d",
         "min_version": "1.57",
         "package": "Boost",
-        "repo": "eden-emulator/ext-boost",
+        "patches": [
-        "version": "1.92.0"
+            "0001-clang-cl.patch"
+        ],
+        "repo": "boostorg/boost",
+        "version": "boost-1.90.0"
     },
     "boost_headers": {
         "bundled": true,
-        "hash": "c5fa2cd72f6e6666b7963b97bc359c75284b8fb540c30f3629a028b85270c9bc66c8a051383964f2bd4c1e005a4691593d15696e7ef39ea87cf6cff9e5691fb2",
+        "hash": "4ef845775e2277a8104ded6ddf749aa262ce52cf8438042869a048f9a0156dd772fbbcfa74efa1378fecef339b7286f6fe4b4feb5c45d49966b35d08e3e83507",
         "repo": "boostorg/headers",
-        "version": "boost-1.91.0"
+        "version": "boost-1.90.0"
     },
     "catch2": {
         "hash": "7eea385d79d88a5690cde131fe7ccda97d5c54ea09d6f515000d7bf07c828809d61c1ac99912c1ee507cf933f61c1c47ecdcc45df7850ffa82714034b0fccf35",
@@ -338,11 +336,6 @@
         "repo": "herumi/xbyak",
         "version": "v7.40.1"
     },
-    "zbic": {
-        "hash": "fbe2f37986377d7f0d96ae3224c80b5971df6e8b6961f68061f1975ebb2e8cb78f07b90f014b007be4023dbf5513581504e7f7d61a5237cb2a8a7a61ae11e482",
-        "repo": "kinnay/zbic",
-        "version": "11b08f2712264bbed731545085cbd9702096ceb7"
-    },
     "zlib": {
         "hash": "16fea4df307a68cf0035858abe2fd550250618a97590e202037acd18a666f57afc10f8836cbbd472d54a0e76539d0e558cb26f059d53de52ff90634bbf4f47d4",
         "min_version": "1.2",

docs/user/CommandLine.md

@@ -1,44 +1,32 @@
 # User Handbook - Command Line
 
-There are two main applications, an SDL-based app (`eden-cli`) and a Qt based app (`eden`); both accept the same command line arguments.
+There are two main applications, an SDL-based app (`eden-cli`) and a Qt based app (`eden`); both accept command line arguments.
+
+## eden
 
 - `./eden <path>`: Running with a single argument and nothing else, will make the emulator look for the given file and load it, this behavior is similar to `eden-cli`; allows dragging and dropping games into the application.
-- `--debug/-d`: Enter debug mode, allow gdb stub at port `1234`
+- `-g <path>`: Alternate way to specify what to load, overrides. However let it be noted that arguments that use `-` will be treated as options/ignored, if your game, for some reason, starts with `-`, in order to safely handle it you may need to specify it as an argument.
-- `--config/-c`: Specify alternate configuration file.
+- `-f`: Use fullscreen.
-- `--fullscreen/-f`: Use fullscreen.
+- `-u <number>`: Select the index of the user to load as.
-- `--help/-h`: Display help.
+- `-input-profile <name>`: Specifies input profile name to use (for player #0 only).
-- `--game/-g <path>`: Alternate way to specify what to load, overrides. However let it be noted that arguments that use `-` will be treated as options/ignored, if your game, for some reason, starts with `-`, in order to safely handle it you may need to specify it as an argument.
-- `--multiplayer/-m`: Specify multiplayer options.
-- `--program/-p`: Specify the program arguments to pass (optional).
-- `--user/-u <number>`: Specify the user index.
-- `--version/-v`: Display version and quit.
-- `--input-profile/-i <name>`: Specifies input profile name to use (for player #0 only).
-- `--null-render/-n`: Forces the usage of the "Null" render backend irrespective of settings.
-- `--filter/-x`: Sets the debug log filter irrespective of settings.
-- `--singlecore/-s`: Forces single-core regardless of settings.
-
-Only the Qt frontend supports the following arguments:
-
 - `-qlaunch`: Launch QLaunch.
 - `-hlaunch`: Launch homebrew launcher `nx-hbloader`.
     - Requires a copy of Atmosphere to be extracted onto `sdmc`.
     - This is a shorthand for `<eden folder>/sdmc/atmosphere/hbl.nsp`.
 - `-setup`: Launch setup applet.
 
-`eden` (provided with `--room`), and `eden-room` supports the following options as well:
+## eden-cli
 
-- `-n/--room-name`: The name of the room.
+- `--debug/-d`: Enter debug mode, allow gdb stub at port `1234`
-- `-d/--room-description`: The room description.
+- `--config/-c`: Specify alternate configuration file.
-- `-s/--bind-address`: The bind address for the room.
+- `--fullscreen/-f`: Set fullscreen.
-- `-p/--port`: The port used for the room.
+- `--help/-h`: Display help.
-- `-m/--max-members`: The maximum number of players for this room.
+- `--game/-g`: Specify the game to run.
-- `-w/--password`: The password for the room.
+- `--multiplayer/-m`: Specify multiplayer options.
-- `-g/--preferred-game`: The preferred game for this room.
+- `--program/-p`: Specify the program arguments to pass (optional).
-- `-i/--preferred-game-id`: The preferred game-id for this room.
+- `--user/-u`: Specify the user index.
-- `-u/--username`: The username used for announce.
+- `--version/-v`: Display version and quit.
-- `-t/--token`: The token used for announce.
+- `--input-profile/-i`: Specifies input profile name to use (for player #0 only).
-- `-a/--web-api-url`: yuzu Web API url.
+- `--null-render/-n`: Forces the usage of the "Null" render backend irrespective of settings.
-- `-b/--ban-list-file`: The file for storing the room ban list.
+- `--filter/-x`: Sets the debug log filter irrespective of settings.
-- `-l/--log-file`: The file for storing the room log.
+- `--singlecore/-s`: Forces single-core regardless of settings.
-- `-h/--help`: Display this help and exit.
-- `-v/--version`: Output version information and exit.

externals/CMakeLists.txt

@@ -48,11 +48,6 @@ if (NOT TARGET stb::headers)
     add_library(stb::headers ALIAS stb)
 endif()
 
-AddJsonPackage(NAME zbic DOWNLOAD_ONLY)
-set(ZBIC_INCLUDE_DIR
-    "${zbic_SOURCE_DIR}/src"
-    PARENT_SCOPE)
-
 # ItaniumDemangle (Windows only)
 if (WIN32 AND NOT TARGET LLVM::Demangle)
     add_library(demangle demangle/ItaniumDemangle.cpp)

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/BooleanSetting.kt

@@ -27,6 +27,7 @@ enum class BooleanSetting(override val key: String) : AbstractBooleanSetting {
     RENDERER_ASYNCHRONOUS_GPU_EMULATION("use_asynchronous_gpu_emulation"),
     RENDERER_ASYNC_PRESENTATION("async_presentation"),
     RENDERER_ASYNCHRONOUS_SHADERS("use_asynchronous_shaders"),
+    RENDERER_UNIFIED_MEMORY("use_unified_memory"),
     RENDERER_REACTIVE_FLUSHING("use_reactive_flushing"),
     ENABLE_BUFFER_HISTORY("enable_buffer_history"),
     USE_OPTIMIZED_VERTEX_BUFFERS("use_optimized_vertex_buffers"),

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt

@@ -785,6 +785,13 @@ abstract class SettingsItem(
                     descriptionId = R.string.renderer_asynchronous_shaders_description
                 )
             )
+            put(
+                SwitchSetting(
+                    BooleanSetting.RENDERER_UNIFIED_MEMORY,
+                    titleId = R.string.renderer_unified_memory,
+                    descriptionId = R.string.renderer_unified_memory_description
+                )
+            )
             put(
                 SingleChoiceSetting(
                     IntSetting.FAST_GPU_TIME,

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt

@@ -558,6 +558,7 @@ class SettingsFragmentPresenter(
             add(BooleanSetting.FIX_BLOOM_EFFECTS.key)
             add(BooleanSetting.EMULATE_BGR565.key)
             add(BooleanSetting.RENDERER_ASYNCHRONOUS_SHADERS.key)
+            add(BooleanSetting.RENDERER_UNIFIED_MEMORY.key)
             add(IntSetting.ANDROID_PIPELINE_WORKERS.key)
             add(BooleanSetting.RENDERER_ASYNCHRONOUS_GPU_EMULATION.key)
             add(BooleanSetting.RENDERER_ASYNC_PRESENTATION.key)

src/android/app/src/main/jni/native.cpp

@@ -788,7 +788,7 @@ int Java_org_yuzu_yuzu_1emu_NativeLibrary_installFileToNand(JNIEnv* env, jobject
 jboolean Java_org_yuzu_yuzu_1emu_NativeLibrary_doesUpdateMatchProgram(JNIEnv* env, jobject jobj,
                                                                       jstring jprogramId,
                                                                       jstring jupdatePath) {
-    const u64 program_id = FileSys::GetBaseTitleID(EmulationSession::GetProgramId(env, jprogramId));
+    u64 program_id = EmulationSession::GetProgramId(env, jprogramId);
     std::string updatePath = Common::Android::GetJString(env, jupdatePath);
     std::shared_ptr<FileSys::NSP> nsp = std::make_shared<FileSys::NSP>(
         EmulationSession::GetInstance().System().GetFilesystem()->OpenFile(
@@ -796,7 +796,7 @@ jboolean Java_org_yuzu_yuzu_1emu_NativeLibrary_doesUpdateMatchProgram(JNIEnv* en
     for (const auto& item : nsp->GetNCAs()) {
         for (const auto& nca_details : item.second) {
             if (nca_details.second->GetName().ends_with(".cnmt.nca")) {
-                const auto update_id = FileSys::GetBaseTitleID(nca_details.second->GetTitleId());
+                auto update_id = nca_details.second->GetTitleId() & ~0xFFFULL;
                 if (update_id == program_id) {
                     return true;
                 }

src/android/app/src/main/res/values-es/strings.xml

@@ -289,7 +289,6 @@
     <string name="gpu_driver_fetcher">Obtenedor de controladores de la GPU</string>
     <string name="gpu_driver_manager">Gestor de controladores de la GPU</string>
     <string name="install_gpu_driver_description">Instale los controladores alternativos para obtener un posible mejor rendimiento o precisión</string>
-    <string name="post_processing_add">Añadir efecto</string>
     <string name="post_processing_open_list">Abrir lista</string>
     <string name="post_processing_close_list">Cerrar lista</string>
     <string name="post_processing_reset">Restablecer a predeterminado</string>

src/android/app/src/main/res/values-ru/strings.xml

@@ -318,13 +318,6 @@
     <string name="frame_gen_target_rate">Целевая частота кадров</string>
     <string name="frame_gen_target_rate_description">Выберите значение под ваш дисплей. Множитель подстроится сам, чтобы его держать, и откатит изменения, если игра начнёт тормозить.</string>
     <string name="frame_gen_target_rate_off">Использовать фиксированный множитель</string>
-    <string name="frame_gen_on">Вкл.</string>
-    <string name="frame_gen_off">Выкл.</string>
-    <string name="frame_gen_fixed">Фикс.</string>
-    <string name="frame_gen_flow_auto">Авто</string>
-    <string name="frame_gen_quick_description">Включите или выключите генерацию кадров и выберите множитель кадров.</string>
-    <string name="frame_gen_target_rate_quick_description">Генерация кадров с заданной частотой кадров. Множитель регулируется автоматически.</string>
-    <string name="frame_gen_flow_scale_quick_description">Разрешение, используемое для оценки движения между кадрами. Меньшие значения экономят время ГПУ.</string>
     <string name="frame_gen_queue_target">Целевой размер очереди кадров</string>
     <string name="frame_gen_queue_target_description">Сколько готовых кадров может ожидать перед выводом на экран. Более длинные очереди сглаживают скачки ГПУ ценой задержки ввода.</string>
     <string name="frame_gen_queue_target_0">Минимальная задержка (Без буферизации)</string>
@@ -335,14 +328,12 @@
     <string name="frame_gen_flow_scale">Разрешение оценки движения</string>
     <string name="frame_gen_flow_scale_description">Разрешение прохода оптического потока в долях от выходного разрешения. Его понижение — самый дешёвый способ вернуть производительность.</string>
     <string name="frame_gen_unsupported">Генерация кадров недоступна</string>
-    <string name="frame_gen_unsupported_description">В этом ГПУ драйвере отсутствует поддержка модели памяти Vulkan или половинной точности (float16), которая требуется шейдерам Lossless Scaling.</string>
     <string name="lossless_scaling_setup_description">Опционально. Укажите свой Lossless.dll для включения генерации кадров позже.</string>
     <string name="lossless_scaling_install">Установить Lossless.dll</string>
     <string name="lossless_scaling_install_description">Для генерации кадров требуется ваша собственная легальная копия Lossless.dll из Lossless Scaling</string>
     <string name="lossless_scaling_replace_description">Выбрать другой файл Lossless.dll</string>
     <string name="frame_generation_support">Генерация кадров</string>
     <string name="frame_generation_supported">Поддерживается</string>
-    <string name="frame_generation_unsupported">Не поддерживается (нет модели памяти Vulkan или float16)</string>
     <string name="lossless_scaling_description">Предоставьте свою копию Lossless.dll для включения генерации кадров</string>
     <string name="lossless_scaling_installed">Установлена</string>
     <string name="lossless_scaling_not_installed">Не установлена</string>

src/android/app/src/main/res/values-zh-rCN/strings.xml

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources xmlns:tools="http://schemas.android.com/tools" tools:ignore="MissingTranslation">
 
-    <string name="app_disclaimer">本软件可以运行用于 Nintendo Switch 游戏机的游戏。不包含任何游戏或密钥。<br /><br />在您开始之前, 请定位您设备存储上的 <![CDATA[<b> prod.keys </b>]]> 文件。<br /><br /><![CDATA[<a href=\"https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/user/QuickStart.md\">了解更多</a>]]></string>
     <string name="notice_notification_channel_name">错误与注意事项</string>
     <string name="notice_notification_channel_description">当发生错误时显示通知。</string>
     <string name="notification_permission_not_granted">未授予通知权限！</string>
@@ -291,25 +290,6 @@
     <string name="gpu_driver_fetcher">GPU驱动获取器</string>
     <string name="gpu_driver_manager">GPU 驱动管理器</string>
     <string name="install_gpu_driver_description">安装替代的驱动程序以获得更好的性能和精度</string>
-    <string name="post_processing">后处理效果</string>
-    <string name="post_processing_description">在渲染完成后应用 ReShade FX 效果</string>
-    <string name="post_processing_per_game_description">配置此游戏的效果链</string>
-    <string name="post_processing_add">添加效果</string>
-    <string name="post_processing_remove">移除</string>
-    <string name="post_processing_open_list">打开列表</string>
-    <string name="post_processing_close_list">关闭列表</string>
-    <string name="post_processing_remove_all">移除效果</string>
-    <string name="post_processing_preset_locked">预设已激活。在开始游戏前可以在后处理效果中编辑它。</string>
-    <string name="post_processing_preset_modified">数值已从原始预设被更改。</string>
-    <string name="post_processing_presets">预设</string>
-    <string name="post_processing_preset_new">新建预设</string>
-    <string name="post_processing_preset_new_description">把您加载的效果及当前数值保存为一个预设,以便今后选用。</string>
-    <string name="post_processing_preset_name_invalid">请给预设起一个不含等号的名称。</string>
-    <string name="post_processing_preset_none">无预设</string>
-    <string name="post_processing_preset_delete">删除预设</string>
-    <string name="post_processing_preset_reset">重置预设值</string>
-    <string name="post_processing_reset">重置为默认值</string>
-    <string name="post_processing_empty">找不到效果。请在此文件中放置 .fx 文件:</string>
     <string name="frame_gen">帧生成</string>
     <string name="frame_gen_per_game_description">配置针对此游戏的帧生成设定</string>
     <string name="frame_gen_description">设定要在使用无损缩放渲染的帧之间应用的插帧。启用后强制采用FIFO呈现模式 。</string>
@@ -324,13 +304,6 @@
     <string name="frame_gen_target_rate_60">60 FPS</string>
     <string name="frame_gen_target_rate_90">90 FPS</string>
     <string name="frame_gen_target_rate_120">120 FPS</string>
-    <string name="frame_gen_on">开</string>
-    <string name="frame_gen_off">关</string>
-    <string name="frame_gen_fixed">固定</string>
-    <string name="frame_gen_flow_auto">自动</string>
-    <string name="frame_gen_quick_description">打开或关闭帧生成并选择帧生成倍数。</string>
-    <string name="frame_gen_target_rate_quick_description">生成帧到目标帧率。倍率会自动调整。</string>
-    <string name="frame_gen_flow_scale_quick_description">用来估算帧间运动的分辨率。较低的值可以节省 GPU 时间。</string>
     <string name="frame_gen_queue_target">帧队列目标</string>
     <string name="frame_gen_queue_target_description">在显示之前有多少已完成渲染的帧正在等待。较大的队列可以缓解 GPU 突发的压力，但会增加输入延迟。</string>
     <string name="frame_gen_queue_target_0">最低延迟 (无缓冲)</string>
@@ -341,14 +314,12 @@
     <string name="frame_gen_flow_scale">运动预估分辨率</string>
     <string name="frame_gen_flow_scale_description">光流通道的分辨率,以输出的比例表示。降低它是提升性能最经济的做法。</string>
     <string name="frame_gen_unsupported">帧生成不可用</string>
-    <string name="frame_gen_unsupported_description">这个 GPU 驱动缺少 Lossless Scaling 着色器所需的 Vulkan 内存模型或半精度 (float16) 支持。</string>
     <string name="lossless_scaling_setup_description">作为可选项。请提供您自己的 Lossless.dll 以便在之后可以启用帧生成。</string>
     <string name="lossless_scaling_install">安装 Lossless.dll</string>
     <string name="lossless_scaling_install_description">帧生成需要您自己从 Lossless Scaling 获得合法的 Lossless.dll 副本</string>
     <string name="lossless_scaling_replace_description">选择其它 Lossless.dll 副本</string>
     <string name="frame_generation_support">帧生成</string>
     <string name="frame_generation_supported">支持</string>
-    <string name="frame_generation_unsupported">不支持 (无 Vulkan 内存模型或 float16)</string>
     <string name="lossless_scaling">无损缩放</string>
     <string name="lossless_scaling_description">提供您自己的 Lossless.dll 文件以启用帧生成</string>
     <string name="lossless_scaling_installed">已安装</string>
@@ -640,11 +611,6 @@
     <string name="log">日志记录</string>
     <string name="flush_by_line">按行刷新调试日志</string>
     <string name="flush_by_line_description">在每行写入时刷新调试日志，使在崩溃或冻结时调试更容易。</string>
-    <string name="extended_logging">开启扩展日志</string>
-    <string name="extended_logging_description">将最大日志文件大小从 100 MiB 提升至 1GiB。</string>
-    <string name="log_filter">日志筛选器</string>
-    <string name="log_filter_description">控制 Eden 的日志类别。例如: *:Info Service.LM:Debug</string>
-
     <!-- GPU Logging strings -->
     <string name="gpu_logging_header">GPU 日志</string>
     <string name="gpu_log_level">日志等级</string>
@@ -928,8 +894,6 @@
     <string name="loader_error_file_not_found">ROM 文件不存在</string>
 
     <string name="loader_requires_firmware">游戏需要固件</string>
-    <string name="loader_requires_firmware_description"><![CDATA[这个游戏可能需要固件才能正常运行,但您还没有安装任何固件。请在启动前安装固件,或者按 “确定” 继续启动。]]></string>
-
     <!-- Intent Launch strings -->
     <string name="searching_for_game">正在搜索游戏...</string>
     <string name="game_not_found_for_title_id">未找到标题ID的游戏: %1$s</string>

src/android/app/src/main/res/values-zh-rTW/strings.xml

@@ -229,7 +229,7 @@
     <string name="add_directory_success">遊戲目錄新增成功</string>
     <string name="enable_update_checks">檢查更新</string>
     <string name="enable_update_checks_description">在Eden啟動時檢查有無新版本並選擇是否要下載與安裝更新</string>
-    <string name="update_available">發現新版本</string>
+    <string name="update_available">偵測到新版本</string>
     <string name="update_available_description">有更新可供安裝：%1$s\n\n您要進行更新嗎？</string>
     <string name="downloading_update">下載更新中</string>
     <string name="update_download_failed">更新下載失敗</string>
@@ -1020,40 +1020,9 @@
     <string name="memory_6gb">6GB (不穩定)</string>
     <string name="memory_8gb">8GB (不穩定)</string>
 
-    <!-- CPU clock levels -->
-    <string name="clock_normal">正常</string>
-    <string name="clock_boost">加速</string>
-    <string name="clock_fast">超頻</string>
-
-    <!-- GPU clock levels -->
-    <string name="fast_gpu_normal">正常</string>
-    <string name="fast_gpu_medium">加速</string>
-    <string name="fast_gpu_high">超頻</string>
-
-    <!-- GPU swizzle texture size -->
-    <string name="gpu_texturesizeswizzle_verysmall">極小 （16MB）</string>
-    <string name="gpu_texturesizeswizzle_small">小（32MB）</string>
-    <string name="gpu_texturesizeswizzle_normal">正常（128MB）</string>
-    <string name="gpu_texturesizeswizzle_large">大（256MB）</string>
-    <string name="gpu_texturesizeswizzle_verylarge">極大（512MB）</string>
-
-    <!-- GPU swizzle streams -->
-    <string name="gpu_swizzle_verylow">極小（4MB）</string>
-    <string name="gpu_swizzle_low">小（8MB）</string>
-    <string name="gpu_swizzle_normal">正常（16MB）</string>
-    <string name="gpu_swizzle_medium">中（32MB）</string>
-    <string name="gpu_swizzle_high">大（64MB）</string>
-
-    <!-- GPU swizzle chunks -->
-    <string name="gpu_swizzlechunk_verylow">極小（32）</string>
-    <string name="gpu_swizzlechunk_low">小（64）</string>
-    <string name="gpu_swizzlechunk_normal">正常（128）</string>
-    <string name="gpu_swizzlechunk_medium">中（256）</string>
-    <string name="gpu_swizzlechunk_high">大（512）</string>
-
     <!-- Temperature Units -->
-    <string name="temperature_celsius">攝氏</string>
+    <string name="temperature_celsius">攝氏度</string>
-    <string name="temperature_fahrenheit">華氏</string>
+    <string name="temperature_fahrenheit">華氏度</string>
 
     <!-- Memory Sizes -->
     <string name="memory_byte_shorthand">B</string>
@@ -1066,8 +1035,6 @@
 
     <string name="renderer_none">無</string>
 
-    <!-- Renderer Accuracy -->
-    <string name="renderer_accuracy_low">效能</string>
     <string name="renderer_accuracy_high">準確</string>
 
     <!-- DMA Accuracy -->

src/android/app/src/main/res/values/strings.xml

@@ -605,6 +605,8 @@
     <string name="rescale_hack_description">Enables a legacy handling for the rescale configuration pass for games by using a quick rescale path</string>
     <string name="renderer_asynchronous_shaders">Use asynchronous shaders</string>
     <string name="renderer_asynchronous_shaders_description">Compiles shaders asynchronously. This may reduce stutters but may also introduce glitches.</string>
+    <string name="renderer_unified_memory">Unified memory access</string>
+    <string name="renderer_unified_memory_description">Allows GPU write buffer readbacks directly into guest memory, skipping the CPU staging copy.</string>
     <string name="gpu_unswizzle_settings">GPU Unswizzle Settings</string>
     <string name="gpu_unswizzle_settings_description">Configure GPU-based texture unswizzling parameters or disable it entirely. Adjust these settings to balance performance and texture loading quality.</string>
     <string name="gpu_unswizzle_enable">Enable GPU Unswizzle</string>

src/common/CMakeLists.txt

@@ -76,6 +76,7 @@ add_library(
     logging.h
     lz4_compression.cpp
     lz4_compression.h
+    make_unique_for_overwrite.h
     math_util.h
     memory_detect.cpp
     memory_detect.h
@@ -109,6 +110,7 @@ add_library(
     socket_types.h
     sparse_large_vector.cpp
     sparse_large_vector.h
+    spin_lock.h
     stb.cpp
     stb.h
     steady_clock.cpp
@@ -137,8 +139,6 @@ add_library(
     uuid.cpp
     uuid.h
     vector_math.h
-    zbic_compression.cpp
-    zbic_compression.h
     zstd_compression.cpp
     zstd_compression.h
     fs/ryujinx_compat.h fs/ryujinx_compat.cpp
@@ -149,10 +149,6 @@ add_library(
     net/net.h net/net.cpp
     container/unordered_map.h container/unordered_set.h)
 
-set_source_files_properties(zbic_compression.cpp PROPERTIES
-    INCLUDE_DIRECTORIES "${ZBIC_INCLUDE_DIR}"
-    COMPILE_OPTIONS "$<$<CXX_COMPILER_ID:Clang,GNU>:-Wno-unused-function>")
-
 if(WIN32)
     target_sources(common PRIVATE windows/timer_resolution.cpp
         windows/timer_resolution.h)

src/common/cpu_features.cpp

@@ -244,8 +244,7 @@ WallClock::WallClock(bool invariant_, u64 rdtsc_frequency_) noexcept
     , ns_rdtsc_factor{invariant_ ? GetFixedPoint64Factor(NsRatio::den, rdtsc_frequency_) : 0}
     , us_rdtsc_factor{invariant_ ? GetFixedPoint64Factor(UsRatio::den, rdtsc_frequency_) : 0}
     , ms_rdtsc_factor{invariant_ ? GetFixedPoint64Factor(MsRatio::den, rdtsc_frequency_) : 0}
-    , rdtsc_ns_integer{invariant_ ? rdtsc_frequency_ / NsRatio::den : 1}
+    , rdtsc_ns_factor{invariant_ ? GetFixedPoint64Factor(rdtsc_frequency_, NsRatio::den) : 1}
-    , rdtsc_ns_factor{invariant_ ? GetFixedPoint64Factor(rdtsc_frequency_ % NsRatio::den, NsRatio::den) : 0}
     , cntpct_rdtsc_factor{invariant_ ? GetFixedPoint64Factor(CNTFRQ, rdtsc_frequency_) : 0}
     , gputick_rdtsc_factor{invariant_ ? GetFixedPoint64Factor(GPUTickFreq, rdtsc_frequency_) : 0}
     , invariant{invariant_}
@@ -292,7 +291,7 @@ bool WallClock::IsNative() const {
 }
 
 u64 WallClock::NsToTicks(std::chrono::nanoseconds ns) const {
-    return ns.count() * rdtsc_ns_integer + MultiplyHigh(ns.count(), rdtsc_ns_factor);
+    return invariant ? MultiplyHigh(ns.count(), rdtsc_ns_factor) : ns.count();
 }
 #elif defined(HAS_NCE)
 namespace {
@@ -417,7 +416,7 @@ u64 WallClock::NsToTicks(std::chrono::nanoseconds ns) const {
 const WallClock g_wall_clock = [] {
 #if defined(ARCHITECTURE_x86_64)
     auto const& caps = Common::g_cpu_caps;
-    return WallClock(caps.invariant_tsc && caps.tsc_frequency > std::nano::den, caps.tsc_frequency);
+    return WallClock(caps.invariant_tsc && caps.tsc_frequency >= std::nano::den, caps.tsc_frequency);
 #elif defined(HAS_NCE)
     return WallClock(false, 1);
 #else

src/common/cpu_features.h

@@ -96,7 +96,6 @@ public:
     u64 ns_rdtsc_factor;
     u64 us_rdtsc_factor;
     u64 ms_rdtsc_factor;
-    u64 rdtsc_ns_integer;
     u64 rdtsc_ns_factor;
     u64 cntpct_rdtsc_factor;
     u64 gputick_rdtsc_factor;

src/common/error.cpp

@@ -17,33 +17,35 @@
 
 namespace Common {
 
-// glibc, mlibc, musl, and newlib all define their own variants of strerror_r
-// We don't need to use the preprocessor, we can just select depending on return type
-template<typename T> std::string HandleStrerrorR(T r, char *err_str);
-template<> std::string HandleStrerrorR(char* r, char *) { return std::string{r}; }
-template<> std::string HandleStrerrorR(const char* r, char *) { return std::string{r}; }
-template<> std::string HandleStrerrorR(int r, char *err_str) {
-    return std::string{r != 0
-        ? "(strerror_r failed to format error)"
-        : err_str};
-}
-
 std::string NativeErrorToString(int e) {
 #ifdef _WIN32
     LPSTR err_str;
+
     DWORD res = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER |
                                    FORMAT_MESSAGE_IGNORE_INSERTS,
                                nullptr, e, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
-                               LPSTR(&err_str), 1, nullptr);
+                               reinterpret_cast<LPSTR>(&err_str), 1, nullptr);
-    if (res) {
+    if (!res) {
-        std::string ret(err_str);
+        return "(FormatMessageA failed to format error)";
-        LocalFree(err_str);
-        return ret;
     }
-    return "(FormatMessageA failed to format error)";
+    std::string ret(err_str);
+    LocalFree(err_str);
+    return ret;
 #else
     char err_str[255];
-    return HandleStrerrorR(strerror_r(e, err_str, sizeof(err_str)), err_str);
+#if defined(__ANDROID__) ||                                                                            \
+    (defined(__GLIBC__) && (_GNU_SOURCE || (_POSIX_C_SOURCE < 200112L && _XOPEN_SOURCE < 600)))
+    // Thread safe (GNU-specific)
+    const char* str = strerror_r(e, err_str, sizeof(err_str));
+    return std::string(str);
+#else
+    // Thread safe (XSI-compliant)
+    int second_err = strerror_r(e, err_str, sizeof(err_str));
+    if (second_err != 0) {
+        return "(strerror_r failed to format error)";
+    }
+    return std::string(err_str);
+#endif // GLIBC etc.
 #endif // _WIN32
 }
 

src/common/fs/path_util.cpp

@@ -5,7 +5,6 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <algorithm>
-#include <cctype>
 #include <iostream>
 #include <sstream>
 #include "common/container/unordered_map.h"
@@ -481,80 +480,28 @@ std::string SanitizePath(std::string_view path_, DirectorySeparator directory_se
                            [type2](char c1, char c2) { return c1 == type2 && c2 == type2; }),
                path.end());
 
-    std::string root;
+    const bool absolute = !path.empty() && path[0] == type2;
-    std::string_view components{path};
-    bool drive_relative = false;
-
-#ifdef _WIN32
-    const bool network = path.size() > 1 && path[0] == type2 && path[1] == type2;
-    const bool drive =
-        path.size() > 1 && std::isalpha(static_cast<unsigned char>(path[0])) && path[1] == ':';
-
-    if (network) {
-        root.assign(2, type2);
-        components.remove_prefix(2);
-    } else if (drive) {
-        root.assign(path.data(), 2);
-        components.remove_prefix(2);
-        if (!components.empty() && components.front() == type2) {
-            root += type2;
-            components.remove_prefix(1);
-        } else {
-            drive_relative = true;
-        }
-    }
-#endif
-
-    if (root.empty() && !components.empty() && components.front() == type2) {
-        root += type2;
-        components.remove_prefix(1);
-    }
-
-    const auto path_parts = SplitPathComponents(components);
-    std::size_t root_component_count = 0;
-#ifdef _WIN32
-    if (network) {
-        root_component_count = 2;
-
-        const auto is_unc = [](std::string_view part) {
-            return part.size() == 3 && (part[0] == 'U' || part[0] == 'u') &&
-                   (part[1] == 'N' || part[1] == 'n') && (part[2] == 'C' || part[2] == 'c');
-        };
-        if (path_parts.size() >= 2 && path_parts[0] == "?" && is_unc(path_parts[1])) {
-            root_component_count = 4;
-        }
-    }
-#endif
-
     std::vector<std::string_view> parts;
-    for (std::size_t i = 0; i < path_parts.size(); ++i) {
+
-        const auto part = path_parts[i];
+    for (const auto part : SplitPathComponents(path))
-        if (i < root_component_count) {
+    {
-            parts.push_back(part);
+        if (part.empty() || part == ".")
-        } else if (part.empty() || part == ".") {
             continue;
-        } else if (part == "..") {
+        if (part == ".." && !parts.empty() && parts.back() != "..")
-            if (parts.size() > root_component_count) {
+            parts.pop_back();
-                parts.pop_back();
+        else if (part != "..") parts.push_back(part);
-            }
-        } else {
-            parts.push_back(part);
-        }
     }
 
-    const std::size_t root_length = root.size();
+    std::string resolved = absolute ? std::string(1, type2) : std::string{};
-    std::string resolved = std::move(root);
+    for (std::size_t i = 0; i < parts.size(); ++i)
-    for (std::size_t i = 0; i < parts.size(); ++i) {
+    {
-        if (i != 0 || (!resolved.empty() && resolved.back() != type2 && !drive_relative))
+        if (i != 0)
             resolved += type2;
         resolved.append(parts[i].data(), parts[i].size());
     }
 
     path = std::move(resolved);
 
-    if (!path.empty() && path.size() == root_length) {
-        return path;
-    }
     return std::string(RemoveTrailingSlash(path));
 }
 

src/common/fs/path_util.h

@@ -347,9 +347,8 @@ enum class DirectorySeparator {
 // i.e. "C:\Users\Yuzu\Documents\save.bin" becomes {"C:", "Users", "Yuzu", "Documents", "save.bin" }
 [[nodiscard]] std::vector<std::string> SplitPathComponentsCopy(std::string_view filename);
 
-// Normalizes directory separators, removes duplicate and non-root trailing separators, and resolves
+// Removes trailing slash, makes all '\\' into '/', and removes duplicate '/'. Makes '/' into '\\'
-// '.' and '..' components without traversing above the path root. Windows drive and UNC roots are
+// depending if directory_separator is BackwardSlash or PlatformDefault and running on windows
-// preserved.
 [[nodiscard]] std::string SanitizePath(
     std::string_view path,
     DirectorySeparator directory_separator = DirectorySeparator::ForwardSlash);

src/common/heap_tracker.cpp

@@ -4,34 +4,17 @@
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include <fstream>
 #include "common/heap_tracker.h"
 #include "common/logging.h"
+#include "common/memory_detect.h"
 #include "common/assert.h"
 
 namespace Common {
 
-namespace {
-
-s64 GetMaxPermissibleResidentMapCount() {
-    // Default value.
-    s64 value = 65530;
-
-    // Try to read how many mappings we can make.
-    std::ifstream s("/proc/sys/vm/max_map_count");
-    s >> value;
-
-    // Print, for debug.
-    LOG_INFO(HW_Memory, "Current maximum map count: {}", value);
-
-    // Allow 20000 maps for other code and to account for split inaccuracy.
-    return std::max<s64>(value - 20000, 0);
-}
-
-} // namespace
-
 HeapTracker::HeapTracker(Common::HostMemory& buffer)
-    : m_buffer(buffer), m_max_resident_map_count(GetMaxPermissibleResidentMapCount()) {}
+    : m_buffer(buffer),
+      m_has_hardware_buffer_backing(!buffer.BackingHardwareBuffers().empty()),
+      m_max_resident_map_count(static_cast<s64>(GetPermissibleMapCount())) {}
 HeapTracker::~HeapTracker() = default;
 
 void HeapTracker::Map(size_t virtual_offset, size_t host_offset, size_t length,
@@ -85,7 +68,8 @@ void HeapTracker::Unmap(size_t virtual_offset, size_t size, bool is_separate_hea
 
             // If resident, erase from resident map.
             if (item->is_resident) {
-                ASSERT(--m_resident_map_count >= 0);
+                m_resident_map_count -= this->HostMapCount(item->paddr, item->size);
+                ASSERT(m_resident_map_count >= 0);
                 m_resident_mappings.erase(m_resident_mappings.iterator_to(*item));
             }
 
@@ -191,7 +175,7 @@ bool HeapTracker::DeferredMapSeparateHeap(size_t virtual_offset) {
 
         // This map is now resident.
         it->is_resident = true;
-        m_resident_map_count++;
+        m_resident_map_count += this->HostMapCount(it->paddr, it->size);
         m_resident_mappings.insert(*it);
     }
 
@@ -213,17 +197,17 @@ void HeapTracker::RebuildSeparateHeapAddressSpace() {
     // Despite being worse in theory, this has proven to be better in practice than more
     // regularly dumping a smaller amount, because it significantly reduces average case
     // lock contention.
-    std::size_t const desired_count = (std::min)(m_resident_map_count, m_max_resident_map_count) / 2;
+    s64 const desired_count = (std::min)(m_resident_map_count, m_max_resident_map_count) / 2;
-    std::size_t const evict_count = m_resident_map_count - desired_count;
     auto it = m_resident_mappings.begin();
 
-    for (size_t i = 0; i < evict_count && it != m_resident_mappings.end(); i++) {
+    while (m_resident_map_count > desired_count && it != m_resident_mappings.end()) {
         // Unmark and unmap.
         it->is_resident = false;
         m_buffer.Unmap(it->vaddr, it->size, false);
 
         // Advance.
-        ASSERT(--m_resident_map_count >= 0);
+        m_resident_map_count -= this->HostMapCount(it->paddr, it->size);
+        ASSERT(m_resident_map_count >= 0);
         it = m_resident_mappings.erase(it);
     }
 }
@@ -245,6 +229,7 @@ void HeapTracker::SplitHeapMapLocked(VAddr offset) {
     // Cache the original values.
     auto* const left = std::addressof(*it);
     const size_t orig_size = left->size;
+    const s64 orig_host_map_count = this->HostMapCount(left->paddr, orig_size);
 
     // Adjust the left map.
     const size_t left_size = offset - left->vaddr;
@@ -266,11 +251,20 @@ void HeapTracker::SplitHeapMapLocked(VAddr offset) {
 
     // If resident, also insert into resident map.
     if (right->is_resident) {
-        m_resident_map_count++;
+        m_resident_map_count += this->HostMapCount(left->paddr, left->size) +
+                                this->HostMapCount(right->paddr, right->size) -
+                                orig_host_map_count;
         m_resident_mappings.insert(*right);
     }
 }
 
+s64 HeapTracker::HostMapCount(PAddr paddr, size_t size) const {
+    if (!m_has_hardware_buffer_backing) {
+        return size != 0 ? 1 : 0;
+    }
+    return static_cast<s64>(m_buffer.BackingMapCount(paddr, size));
+}
+
 HeapTracker::AddrTree::iterator HeapTracker::GetNearestHeapMapLocked(VAddr offset) {
     const SeparateHeapMap key{
         .vaddr = offset,

src/common/heap_tracker.h

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -82,10 +85,13 @@ private:
 
     AddrTree::iterator GetNearestHeapMapLocked(VAddr offset);
 
+    s64 HostMapCount(PAddr paddr, size_t size) const;
+
     void RebuildSeparateHeapAddressSpace();
 
 private:
     Common::HostMemory& m_buffer;
+    const bool m_has_hardware_buffer_backing;
     const s64 m_max_resident_map_count;
 
     std::shared_mutex m_rebuild_lock{};

src/common/host_memory.cpp

@@ -51,14 +51,65 @@
 
 #endif // ^^^ POSIX ^^^
 
+#include <atomic>
 #include <mutex>
 #include <random>
+#include <vector>
 
 #include "common/alignment.h"
 #include "common/assert.h"
 #include "common/free_region_manager.h"
 #include "common/host_memory.h"
 #include "common/logging.h"
+#include "common/memory_detect.h"
+#include "common/settings.h"
+
+#ifdef __ANDROID__
+#include <cerrno>
+#include <dlfcn.h>
+#include <sys/ioctl.h>
+#include <android/hardware_buffer.h>
+
+namespace {
+
+struct NativeHandle {
+    int version;
+    int numFds;
+    int numInts;
+    int data[1];
+};
+
+using PFN_AHardwareBuffer_getNativeHandle = const NativeHandle* (*)(const AHardwareBuffer*);
+
+PFN_AHardwareBuffer_getNativeHandle ResolveGetNativeHandle() {
+    void* const lib = dlopen("libnativewindow.so", RTLD_NOW);
+    if (lib == nullptr) {
+        return nullptr;
+    }
+    return reinterpret_cast<PFN_AHardwareBuffer_getNativeHandle>(
+        dlsym(lib, "AHardwareBuffer_getNativeHandle"));
+}
+
+struct DmaBufSync {
+    u64 flags;
+};
+
+constexpr u64 DmaBufSyncRead = 1ULL << 0;
+constexpr u64 DmaBufSyncWrite = 1ULL << 1;
+constexpr u64 DmaBufSyncStart = 0ULL << 2;
+constexpr u64 DmaBufSyncEnd = 1ULL << 2;
+
+void SyncDmaBufCpuAccess(int fd, u64 phase) {
+    DmaBufSync sync{.flags = phase | DmaBufSyncRead | DmaBufSyncWrite};
+    while (ioctl(fd, _IOW('b', 0, DmaBufSync), &sync) != 0) {
+        if (errno != EINTR) {
+            return;
+        }
+    }
+}
+
+} // namespace
+#endif
 
 #if defined(__ANDROID__) && __ANDROID_API__ < 30
 #include <sys/syscall.h>
@@ -75,6 +126,12 @@ namespace Common {
 [[maybe_unused]] constexpr size_t PageAlignment = 0x1000;
 [[maybe_unused]] constexpr size_t HugePageSize = 0x200000;
 
+static std::atomic<u64> committed_backing_size{};
+
+u64 GetCommittedBackingSize() noexcept {
+    return committed_backing_size.load(std::memory_order_relaxed);
+}
+
 #ifdef _WIN32
 
 // Manually imported for MinGW compatibility
@@ -122,7 +179,7 @@ static void GetFuncAddress(Common::DynamicLibrary& dll, const char* name, T& pfn
 
 class HostMemory::Impl {
 public:
-    explicit Impl(size_t backing_size_, size_t virtual_size_)
+    explicit Impl(size_t backing_size_, size_t virtual_size_, size_t)
         : backing_size{backing_size_}
         , virtual_size{virtual_size_}
         , process{GetCurrentProcess()}
@@ -236,6 +293,10 @@ public:
         UNREACHABLE();
     }
 
+    bool IsBackingShared() const noexcept {
+        return true;
+    }
+
     const size_t backing_size; ///< Size of the backing memory in bytes
     const size_t virtual_size; ///< Size of the virtual address placeholder in bytes
 
@@ -512,9 +573,10 @@ static int shm_open_anon(int flags, mode_t mode) {
 
 class HostMemory::Impl {
 public:
-    explicit Impl(size_t backing_size_, size_t virtual_size_)
+    explicit Impl(size_t backing_size_, size_t virtual_size_, size_t preferred_offset_)
         : backing_size{backing_size_}
         , virtual_size{virtual_size_}
+        , preferred_offset{preferred_offset_}
     {}
 
     bool Init() {
@@ -554,10 +616,15 @@ public:
             LOG_WARNING(Common_Memory, "Using private mappings instead of shared ones");
             backing_base = static_cast<u8*>(mmap(nullptr, backing_size, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE | MAP_NOCORE, -1, 0));
             if (fd > 0) {
-                fd = -1;
                 close(fd);
             }
+            fd = -1;
         } else {
+#ifdef __ANDROID__
+            if (InitAhbBacking()) {
+                return InitVirtual();
+            }
+#endif
             backing_base = static_cast<u8*>(mmap(nullptr, backing_size, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_NOCORE, fd, 0));
         }
         if (backing_base == MAP_FAILED) {
@@ -565,7 +632,10 @@ public:
             return false;
         }
 
-        // Virtual memory initialization
+        return InitVirtual();
+    }
+
+    bool InitVirtual() {
         virtual_base = virtual_map_base = static_cast<u8*>(ChooseVirtualBase(virtual_size));
         if (virtual_base == MAP_FAILED) {
             LOG_CRITICAL(HW_Memory, "mmap failed: {}", strerror(errno));
@@ -578,6 +648,244 @@ public:
         return true;
     }
 
+#ifdef __ANDROID__
+    static AHardwareBuffer_Desc MakeBlobDesc(size_t len) {
+        return AHardwareBuffer_Desc{
+            .width = static_cast<u32>(len),
+            .height = 1,
+            .layers = 1,
+            .format = AHARDWAREBUFFER_FORMAT_BLOB,
+            .usage = AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN |
+                     AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN |
+                     AHARDWAREBUFFER_USAGE_GPU_DATA_BUFFER,
+            .stride = 0,
+            .rfu0 = 0,
+            .rfu1 = 0,
+        };
+    }
+
+    static bool ProbeAhbBacking(PFN_AHardwareBuffer_getNativeHandle get_native_handle) {
+        const AHardwareBuffer_Desc desc = MakeBlobDesc(PageAlignment * 2);
+        AHardwareBuffer* buffer{};
+        if (AHardwareBuffer_allocate(&desc, &buffer) != 0 || buffer == nullptr) {
+            return false;
+        }
+        const NativeHandle* const handle = get_native_handle(buffer);
+        if (handle == nullptr || handle->numFds < 1) {
+            AHardwareBuffer_release(buffer);
+            return false;
+        }
+        const int probe_fd = handle->data[0];
+        bool ok = true;
+        const auto try_map = [&](int prot, off_t offset) {
+            if (!ok) {
+                return;
+            }
+            void* const ptr = mmap(nullptr, PageAlignment, prot, MAP_SHARED, probe_fd, offset);
+            if (ptr == MAP_FAILED) {
+                ok = false;
+                return;
+            }
+            munmap(ptr, PageAlignment);
+        };
+        try_map(PROT_READ | PROT_WRITE, 0);
+        try_map(PROT_READ | PROT_WRITE, static_cast<off_t>(PageAlignment));
+#ifdef ARCHITECTURE_arm64
+        try_map(PROT_READ | PROT_EXEC, 0);
+#endif
+        AHardwareBuffer_release(buffer);
+        return ok;
+    }
+
+    size_t ComputeAhbBudget(size_t window_size) const {
+        const u64 total_physical = Common::GetMemInfo().TotalPhysicalMemory;
+        constexpr u64 BaselineFootprint = 6ULL << 30;
+        if (total_physical <= BaselineFootprint) {
+            return 0;
+        }
+        const u64 permissible_maps = Common::GetPermissibleMapCount();
+        if (permissible_maps == 0) {
+            return 0;
+        }
+        u64 budget = (total_physical - BaselineFootprint) / 2;
+        constexpr u64 MapSlotsPerWindow = 64;
+        const u64 affordable_windows = permissible_maps / MapSlotsPerWindow;
+        budget = (std::min)(budget, affordable_windows * window_size);
+        const u64 available = Common::GetAvailablePhysicalMemory();
+        if (available != 0) {
+            budget = (std::min)(budget, available / 2);
+        }
+        budget = (std::min)(budget, static_cast<u64>(backing_size));
+        budget = Common::AlignDown(budget, window_size);
+        constexpr u64 MinimumBudget = 256ULL << 20;
+        if (budget < MinimumBudget) {
+            return 0;
+        }
+        return static_cast<size_t>(budget);
+    }
+
+    bool InitAhbBacking() {
+        if (!Settings::values.use_unified_memory.GetValue()) {
+            return false;
+        }
+        static const PFN_AHardwareBuffer_getNativeHandle get_native_handle =
+            ResolveGetNativeHandle();
+        if (get_native_handle == nullptr) {
+            return false;
+        }
+        constexpr size_t window_size = 256ULL << 20;
+        const size_t budget = ComputeAhbBudget(window_size);
+        if (budget == 0) {
+            return false;
+        }
+        if (!ProbeAhbBacking(get_native_handle)) {
+            return false;
+        }
+        const size_t aligned_backing = Common::AlignDown(backing_size, window_size);
+        const size_t max_windows = (std::min)(budget, aligned_backing) / window_size;
+
+        std::vector<AHardwareBuffer*> buffers;
+        std::vector<int> buffer_fds;
+        const auto cleanup = [&] {
+            for (AHardwareBuffer* buffer : buffers) {
+                AHardwareBuffer_release(buffer);
+            }
+            buffers.clear();
+            buffer_fds.clear();
+        };
+        for (size_t i = 0; i < max_windows; ++i) {
+            const AHardwareBuffer_Desc desc = MakeBlobDesc(window_size);
+            AHardwareBuffer* buffer{};
+            if (AHardwareBuffer_allocate(&desc, &buffer) != 0 || buffer == nullptr) {
+                break;
+            }
+            const NativeHandle* const handle = get_native_handle(buffer);
+            if (handle == nullptr || handle->numFds < 1) {
+                AHardwareBuffer_release(buffer);
+                break;
+            }
+            const int buffer_fd = handle->data[0];
+            const off_t buffer_len = lseek(buffer_fd, 0, SEEK_END);
+            if (buffer_len < static_cast<off_t>(window_size)) {
+                AHardwareBuffer_release(buffer);
+                break;
+            }
+            buffers.push_back(buffer);
+            buffer_fds.push_back(buffer_fd);
+        }
+        const size_t num_windows = buffers.size();
+        if (num_windows == 0) {
+            return false;
+        }
+        const size_t region_size = num_windows * window_size;
+        const size_t region_base = Common::AlignDown(
+            (std::min)(preferred_offset, aligned_backing - region_size), window_size);
+        u8* const base = static_cast<u8*>(mmap(nullptr, backing_size, PROT_NONE,
+                                               MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0));
+        if (base == MAP_FAILED) {
+            cleanup();
+            return false;
+        }
+        const auto map_over_reservation = [&](size_t offset, size_t len, int map_fd,
+                                              off_t map_offset) {
+            if (len == 0) {
+                return true;
+            }
+            if (mmap(base + offset, len, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, map_fd,
+                     map_offset) == MAP_FAILED) {
+                munmap(base, backing_size);
+                cleanup();
+                return false;
+            }
+            return true;
+        };
+        if (!map_over_reservation(0, region_base, fd, 0)) {
+            return false;
+        }
+        for (size_t i = 0; i < num_windows; ++i) {
+            if (!map_over_reservation(region_base + i * window_size, window_size, buffer_fds[i],
+                                      0)) {
+                return false;
+            }
+        }
+        const size_t tail_offset = region_base + region_size;
+        if (!map_over_reservation(tail_offset, backing_size - tail_offset, fd,
+                                  static_cast<off_t>(tail_offset))) {
+            return false;
+        }
+        backing_base = base;
+        ahb_windows = std::move(buffers);
+        ahb_fds = std::move(buffer_fds);
+        ahb_window_size = window_size;
+        ahb_base = region_base;
+        ahb_bytes = region_size;
+        committed_backing_size.store(region_size, std::memory_order_relaxed);
+        for (const int window_fd : ahb_fds) {
+            SyncDmaBufCpuAccess(window_fd, DmaBufSyncStart);
+        }
+        return true;
+    }
+
+    void MapBackingRange(size_t virtual_offset, size_t host_offset, size_t length, int prot_flags) {
+        while (length > 0) {
+            int map_fd = fd;
+            off_t map_offset = static_cast<off_t>(host_offset);
+            size_t chunk = length;
+            if (host_offset < ahb_base) {
+                chunk = (std::min)(chunk, ahb_base - host_offset);
+            } else if (host_offset < ahb_base + ahb_bytes) {
+                const size_t relative = host_offset - ahb_base;
+                const size_t window = relative / ahb_window_size;
+                const size_t local = relative % ahb_window_size;
+                map_fd = ahb_fds[window];
+                map_offset = static_cast<off_t>(local);
+                chunk = (std::min)(chunk, ahb_window_size - local);
+            }
+            void* const ret = mmap(virtual_base + virtual_offset, chunk, prot_flags,
+                                   MAP_SHARED | MAP_FIXED, map_fd, map_offset);
+            ASSERT_MSG(ret != MAP_FAILED, "mmap: {}", strerror(errno));
+            virtual_offset += chunk;
+            host_offset += chunk;
+            length -= chunk;
+        }
+    }
+
+    size_t BackingMapCount(size_t host_offset, size_t length) const noexcept {
+        if (length == 0) {
+            return 0;
+        }
+        if (ahb_bytes == 0) {
+            return 1;
+        }
+        size_t count = 0;
+        while (length > 0) {
+            size_t chunk = length;
+            if (host_offset < ahb_base) {
+                chunk = (std::min)(chunk, ahb_base - host_offset);
+            } else if (host_offset < ahb_base + ahb_bytes) {
+                const size_t local = (host_offset - ahb_base) % ahb_window_size;
+                chunk = (std::min)(chunk, ahb_window_size - local);
+            }
+            host_offset += chunk;
+            length -= chunk;
+            ++count;
+        }
+        return count;
+    }
+
+    std::span<AHardwareBuffer* const> AhbWindows() const noexcept {
+        return ahb_windows;
+    }
+
+    size_t AhbWindowSize() const noexcept {
+        return ahb_bytes != 0 ? ahb_window_size : 0;
+    }
+
+    size_t AhbBase() const noexcept {
+        return ahb_base;
+    }
+#endif
+
     ~Impl() {
         Release();
     }
@@ -606,6 +914,12 @@ public:
 #ifdef ARCHITECTURE_arm64
         if (True(perms & MemoryPermission::Execute))
             prot_flags |= PROT_EXEC;
+#endif
+#ifdef __ANDROID__
+        if (ahb_bytes != 0) {
+            MapBackingRange(virtual_offset, host_offset, length, prot_flags);
+            return;
+        }
 #endif
         int flags = (fd >= 0 ? MAP_SHARED : MAP_PRIVATE) | MAP_FIXED;
         void* ret = mmap(virtual_base + virtual_offset, length, prot_flags, flags, fd, host_offset);
@@ -651,8 +965,18 @@ public:
         virtual_base = nullptr;
     }
 
+    bool IsBackingShared() const noexcept {
+#ifdef __ANDROID__
+        if (ahb_bytes != 0) {
+            return true;
+        }
+#endif
+        return fd >= 0;
+    }
+
     const size_t backing_size; ///< Size of the backing memory in bytes
     const size_t virtual_size; ///< Size of the virtual address placeholder in bytes
+    const size_t preferred_offset;
 
     u8* backing_base{reinterpret_cast<u8*>(MAP_FAILED)};
     u8* virtual_base{reinterpret_cast<u8*>(MAP_FAILED)};
@@ -675,6 +999,21 @@ private:
             int ret = close(fd);
             ASSERT_MSG(ret == 0, "close failed: {}", strerror(errno));
         }
+
+#ifdef __ANDROID__
+        for (const int window_fd : ahb_fds) {
+            SyncDmaBufCpuAccess(window_fd, DmaBufSyncEnd);
+        }
+        for (AHardwareBuffer* buffer : ahb_windows) {
+            AHardwareBuffer_release(buffer);
+        }
+        ahb_windows.clear();
+        ahb_fds.clear();
+        if (ahb_bytes != 0) {
+            committed_backing_size.store(0, std::memory_order_relaxed);
+            ahb_bytes = 0;
+        }
+#endif
     }
 
     void AdjustMap(size_t* virtual_offset, size_t* length) {
@@ -700,11 +1039,19 @@ private:
 
     int fd{-1}; // memfd file descriptor, -1 is the error value of memfd_create
     FreeRegionManager free_manager{};
+
+#ifdef __ANDROID__
+    std::vector<AHardwareBuffer*> ahb_windows;
+    std::vector<int> ahb_fds;
+    size_t ahb_window_size{};
+    size_t ahb_base{};
+    size_t ahb_bytes{};
+#endif
 };
 
 #endif // ^^^ POSIX ^^^
 
-HostMemory::HostMemory(size_t backing_size_, size_t virtual_size_)
+HostMemory::HostMemory(size_t backing_size_, size_t virtual_size_, size_t preferred_offset_)
     : backing_size(backing_size_)
     , virtual_size(virtual_size_)
 {
@@ -714,7 +1061,7 @@ HostMemory::HostMemory(size_t backing_size_, size_t virtual_size_)
     virtual_base = nullptr;
 #else
     // Try to allocate a fastmem arena.
-    impl = std::make_unique<HostMemory::Impl>(AlignUp(backing_size, PageAlignment), AlignUp(virtual_size, PageAlignment) + HugePageSize);
+    impl = std::make_unique<HostMemory::Impl>(AlignUp(backing_size, PageAlignment), AlignUp(virtual_size, PageAlignment) + HugePageSize, preferred_offset_);
     if (impl->Init()) {
         backing_base = impl->backing_base;
         virtual_base = impl->virtual_base;
@@ -794,6 +1141,46 @@ void HostMemory::ClearBackingRegion(size_t physical_offset, size_t length, u32 f
     std::memset(backing_base + physical_offset, fill_value, length);
 }
 
+std::span<AHardwareBuffer* const> HostMemory::BackingHardwareBuffers() const noexcept {
+#ifdef __ANDROID__
+    return impl ? impl->AhbWindows() : std::span<AHardwareBuffer* const>{};
+#else
+    return {};
+#endif
+}
+
+size_t HostMemory::BackingMapCount(size_t host_offset, size_t length) const noexcept {
+#ifdef __ANDROID__
+    return impl ? impl->BackingMapCount(host_offset, length) : (length != 0 ? 1 : 0);
+#else
+    return length != 0 ? 1 : 0;
+#endif
+}
+
+size_t HostMemory::BackingHardwareBufferWindowSize() const noexcept {
+#ifdef __ANDROID__
+    return impl ? impl->AhbWindowSize() : 0;
+#else
+    return 0;
+#endif
+}
+
+bool HostMemory::IsBackingShared() const noexcept {
+#if defined(__OPENORBIS__) || defined(__managarm__)
+    return false;
+#else
+    return impl && impl->IsBackingShared();
+#endif
+}
+
+size_t HostMemory::BackingHardwareBufferBase() const noexcept {
+#ifdef __ANDROID__
+    return impl ? impl->AhbBase() : 0;
+#else
+    return 0;
+#endif
+}
+
 void HostMemory::EnableDirectMappedAddress() {
 #if !(defined(__OPENORBIS__) || defined(__managarm__))
     if (impl) {

src/common/host_memory.h

@@ -8,11 +8,16 @@
 
 #include <memory>
 #include <optional>
+#include <span>
 #include "common/common_funcs.h"
 #include "common/common_types.h"
 
+struct AHardwareBuffer;
+
 namespace Common {
 
+[[nodiscard]] u64 GetCommittedBackingSize() noexcept;
+
 enum class MemoryPermission : u32 {
     Read = 1 << 0,
     Write = 1 << 1,
@@ -27,7 +32,7 @@ DECLARE_ENUM_FLAG_OPERATORS(MemoryPermission)
  */
 class HostMemory {
 public:
-    explicit HostMemory(size_t backing_size_, size_t virtual_size_);
+    explicit HostMemory(size_t backing_size_, size_t virtual_size_, size_t preferred_offset_ = 0);
     ~HostMemory();
 
     /**
@@ -61,6 +66,20 @@ public:
         return backing_base;
     }
 
+    [[nodiscard]] size_t BackingSize() const noexcept {
+        return backing_size;
+    }
+
+    [[nodiscard]] size_t BackingMapCount(size_t host_offset, size_t length) const noexcept;
+
+    [[nodiscard]] std::span<AHardwareBuffer* const> BackingHardwareBuffers() const noexcept;
+
+    [[nodiscard]] size_t BackingHardwareBufferWindowSize() const noexcept;
+
+    [[nodiscard]] size_t BackingHardwareBufferBase() const noexcept;
+
+    [[nodiscard]] bool IsBackingShared() const noexcept;
+
     [[nodiscard]] u8* VirtualBasePointer() noexcept {
         return virtual_base;
     }

src/common/make_unique_for_overwrite.h

@@ -0,0 +1,27 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <memory>
+#include <type_traits>
+
+namespace Common {
+
+template <class T>
+    requires(!std::is_array_v<T>)
+std::unique_ptr<T> make_unique_for_overwrite() {
+    return std::unique_ptr<T>(new T);
+}
+
+template <class T>
+    requires std::is_unbounded_array_v<T>
+std::unique_ptr<T> make_unique_for_overwrite(std::size_t n) {
+    return std::unique_ptr<T>(new std::remove_extent_t<T>[n]);
+}
+
+template <class T, class... Args>
+    requires std::is_bounded_array_v<T>
+void make_unique_for_overwrite(Args&&...) = delete;
+
+} // namespace Common

src/common/memory_detect.cpp

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -17,6 +20,10 @@
 #endif
 #endif
 
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+
 #include "common/memory_detect.h"
 
 namespace Common {
@@ -69,4 +76,61 @@ const MemoryInfo& GetMemInfo() {
     return mem_info;
 }
 
+u64 GetPermissibleMapCount() {
+    constexpr u64 DefaultMapCount = 65530;
+    constexpr u64 ReservedMaps = 20000;
+    u64 count = DefaultMapCount;
+#ifdef __linux__
+    if (std::FILE* const file = std::fopen("/proc/sys/vm/max_map_count", "re")) {
+        char line[32];
+        if (std::fgets(line, sizeof(line), file) != nullptr) {
+            const u64 parsed = std::strtoull(line, nullptr, 10);
+            if (parsed != 0) {
+                count = parsed;
+            }
+        }
+        std::fclose(file);
+    }
+#endif
+    if (count <= ReservedMaps) {
+        return 0;
+    }
+    return count - ReservedMaps;
+}
+
+u64 GetAvailablePhysicalMemory() {
+#ifdef _WIN32
+    MEMORYSTATUSEX memorystatus;
+    memorystatus.dwLength = sizeof(memorystatus);
+    if (GlobalMemoryStatusEx(&memorystatus) == 0) {
+        return 0;
+    }
+    return memorystatus.ullAvailPhys;
+#elif defined(__linux__)
+    static constexpr char AvailableKey[] = "MemAvailable:";
+    if (std::FILE* const file = std::fopen("/proc/meminfo", "re")) {
+        char line[256];
+        u64 available = 0;
+        while (std::fgets(line, sizeof(line), file) != nullptr) {
+            if (std::strncmp(line, AvailableKey, sizeof(AvailableKey) - 1) != 0) {
+                continue;
+            }
+            available = std::strtoull(line + sizeof(AvailableKey) - 1, nullptr, 10) * 1024;
+            break;
+        }
+        std::fclose(file);
+        if (available != 0) {
+            return available;
+        }
+    }
+    struct sysinfo meminfo;
+    if (sysinfo(&meminfo) != 0) {
+        return 0;
+    }
+    return static_cast<u64>(meminfo.freeram) * static_cast<u64>(meminfo.mem_unit);
+#else
+    return 0;
+#endif
+}
+
 } // namespace Common

src/common/memory_detect.h

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -18,4 +21,8 @@ struct MemoryInfo {
  */
 [[nodiscard]] const MemoryInfo& GetMemInfo();
 
+[[nodiscard]] u64 GetPermissibleMapCount();
+
+[[nodiscard]] u64 GetAvailablePhysicalMemory();
+
 } // namespace Common

src/common/page_table.h

@@ -96,15 +96,15 @@ struct PageTable {
         }
 
         /// Write page info atomically
-        inline void Store(bool marked, PageType type, u16 block, uintptr_t pointer) noexcept {
+        constexpr void Store(bool marked, PageType type, u16 block, uintptr_t pointer) noexcept {
             data_raw.store(std::bit_cast<u64>(Data{marked, type, block, pointer}));
         }
 
-        inline void MarkRasterizerCached() noexcept {
+        constexpr void MarkRasterizerCached() noexcept {
             data_raw.fetch_or(0b111);
         }
 
-        inline void MarkDebug(u64 ptr, u16 block) noexcept {
+        constexpr void MarkDebug(u64 ptr, u16 block) noexcept {
             Store(true, PageType::DebugMemory, block, ptr);
         }
 

src/common/scratch_buffer.h

@@ -8,7 +8,8 @@
 
 #include <iterator>
 #include <cstring>
-#include <memory>
+
+#include "common/make_unique_for_overwrite.h"
 
 namespace Common {
 
@@ -37,9 +38,8 @@ public:
     ScratchBuffer() = default;
 
     explicit ScratchBuffer(size_type initial_capacity)
-        : last_requested_size{initial_capacity}
+        : last_requested_size{initial_capacity}, buffer_capacity{initial_capacity},
-        , buffer_capacity{initial_capacity}
+          buffer{Common::make_unique_for_overwrite<T[]>(initial_capacity)} {}
-        , buffer{std::make_unique_for_overwrite<T[]>(initial_capacity)} {}
 
     ~ScratchBuffer() = default;
     ScratchBuffer(const ScratchBuffer&) = delete;
@@ -64,7 +64,7 @@ public:
     /// The previously held data will remain intact.
     void resize(size_type size) {
         if (size > buffer_capacity) {
-            auto new_buffer = std::make_unique_for_overwrite<T[]>(size);
+            auto new_buffer = Common::make_unique_for_overwrite<T[]>(size);
             std::memcpy(new_buffer.get(), buffer.get(), buffer_capacity * sizeof(T));
             buffer = std::move(new_buffer);
             buffer_capacity = size;
@@ -77,7 +77,7 @@ public:
     void resize_destructive(size_type size) {
         if (size > buffer_capacity) {
             buffer_capacity = size;
-            buffer = std::make_unique_for_overwrite<T[]>(buffer_capacity);
+            buffer = Common::make_unique_for_overwrite<T[]>(buffer_capacity);
         }
         last_requested_size = size;
     }

src/common/settings.h

@@ -666,6 +666,9 @@ struct Values {
     SwitchableSetting<bool> use_asynchronous_shaders{linkage, false, "use_asynchronous_shaders",
                                                      Category::RendererHacks};
 
+    SwitchableSetting<bool> use_unified_memory{linkage, false, "use_unified_memory",
+                                               Category::RendererHacks};
+
     SwitchableSetting<GpuUnswizzleSize> gpu_unswizzle_texture_size{linkage,
                                                   GpuUnswizzleSize::Large,
                                                   "gpu_unswizzle_texture_size",

src/common/sparse_large_vector.cpp

@@ -96,21 +96,6 @@ bool CommitVectorPage(uintptr_t addr, bool write) noexcept {
 #ifndef MAP_NOCORE
 #define MAP_NOCORE 0
 #endif
-#ifndef MADV_FREE
-#define MADV_FREE MADV_DONTNEED
-#endif
-
-void DecommitVectorPage(uintptr_t base) noexcept {
-#if defined(_WIN32)
-    VirtualFree(reinterpret_cast<LPVOID>(base), HostPageSize, MEM_DECOMMIT);
-#elif defined(__linux__)
-    // Linux's MADV_DONTNEED zeros out pages for us
-    madvise(reinterpret_cast<void*>(base), HostPageSize, MADV_DONTNEED);
-#else
-    madvise(reinterpret_cast<void*>(base), HostPageSize, MADV_FREE);
-    std::memset(reinterpret_cast<void*>(base), 0, HostPageSize);
-#endif
-}
 
 void* AllocateMemoryPages(std::size_t size) noexcept {
     if (auto page = HostPageSize; size % page != 0) {

src/common/sparse_large_vector.h

@@ -35,12 +35,10 @@ const u64 HostPageMask = ~(HostPageSize - 1);
 
 void* AllocateMemoryPages(std::size_t size) noexcept;
 void FreeMemoryPages(void* base, std::size_t size) noexcept;
-void DecommitVectorPage(uintptr_t base) noexcept;
 
 /// A large page-aligned buffer that has optimized memory usage for zero-writes.
 template <typename T>
-    // MSVC doesn't regard structs with atomics as trivially copyable
+requires std::is_trivially_copyable_v<T>
-    // requires std::is_trivially_copyable_v<T>
 class SparseLargeVector final {
 public:
     constexpr SparseLargeVector() = default;
@@ -115,7 +113,7 @@ public:
         const u64 end_page = AlignUp(base, HostPageSize);
         const u64 first_size = (std::min)(end_page, end) - base;
 
-        if (IsCommittedPage(start)) {
+        if (IsCommittedPage(start / sizeof(T))) {
             std::memset(reinterpret_cast<void*>(base), 0, first_size);
         }
 
@@ -125,16 +123,11 @@ public:
         base = end_page;
 
         for (u64 page = base; page < end; page += HostPageSize) {
-            auto index = (page - reinterpret_cast<u64>(base_ptr)) / sizeof(T);
+            if (!IsCommittedPage((page - reinterpret_cast<u64>(base_ptr)) / sizeof(T))) {
-            if (!IsCommittedPage(index)) {
                 continue;
             }
 
-            if (end - page >= HostPageSize) {
+            std::memset(reinterpret_cast<void*>(page), 0, (std::min)( HostPageSize, end - page));
-                DecommitPage(index);
-            } else {
-                std::memset(reinterpret_cast<void*>(page), 0, end - page);
-            }
         }
     }
 
@@ -189,14 +182,6 @@ private:
         committed_pages[page_index >> 6].fetch_or(1ULL << (page_index & 63), std::memory_order_release);
     }
 
-    constexpr void DecommitPage(std::size_t index) noexcept {
-        auto page_index = (index * sizeof(T)) >> HostPageBits;
-        auto page = reinterpret_cast<uintptr_t>(base_ptr + index) & HostPageMask;
-
-        committed_pages[page_index >> 6].fetch_and(~(1ULL << (page_index & 63)), std::memory_order_release);
-        DecommitVectorPage(page);
-    }
-
     std::size_t alloc_size{};
     T* base_ptr{};
 

src/common/spin_lock.h

@@ -0,0 +1,50 @@
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#ifdef _MSC_VER
+#include <intrin.h>
+#elif defined(ARCHITECTURE_x86_64)
+#include <xmmintrin.h>
+#endif
+#include <atomic>
+
+namespace Common {
+
+/// @brief A lock similar to mutex that forces a thread to spin wait instead calling the
+/// supervisor. Should be used on short sequences of code.
+struct SpinLock {
+    SpinLock() noexcept = default;
+    SpinLock(const SpinLock&) noexcept = delete;
+    SpinLock& operator=(const SpinLock&) noexcept = delete;
+    SpinLock(SpinLock&&) noexcept = delete;
+    SpinLock& operator=(SpinLock&&) noexcept = delete;
+
+    inline void lock() noexcept {
+        while (lck.test_and_set(std::memory_order_acquire)) {
+#if defined(ARCHITECTURE_x86_64)
+            _mm_pause();
+#elif defined(ARCHITECTURE_arm64) && defined(_MSC_VER)
+            __yield();
+#elif defined(ARCHITECTURE_arm64)
+            asm("yield");
+#endif
+        }
+    }
+
+    inline void unlock() noexcept {
+        lck.clear(std::memory_order_release);
+    }
+
+    [[nodiscard]] inline bool try_lock() noexcept {
+        return !lck.test_and_set(std::memory_order_acquire);
+    }
+
+    std::atomic_flag lck = ATOMIC_FLAG_INIT;
+};
+
+} // namespace Common

src/common/uuid.cpp

@@ -208,9 +208,9 @@ UUID UUID::MakeRandomRFC4122V4() {
     return uuid;
 }
 
-UUID UUID::MakeRFC4122V5(std::span<u8, 16> sha1) {
+UUID UUID::MakeRFC4122V5(std::span<u8, 20> sha1) {
     UUID uuid{};
-    std::memcpy(&uuid.uuid, sha1.data(), sha1.size());
+    std::memcpy(&uuid.uuid, sha1.data(), sizeof(UUID));
     uuid.uuid[8] = 0x80 | (uuid.uuid[8] & 0x3F);
     uuid.uuid[6] = 0x50 | (uuid.uuid[6] & 0xF);
     return uuid;

src/common/uuid.h

@@ -104,7 +104,7 @@ struct UUID {
     /// @returns A random UUID that is RFC 4122 Version 4 compliant.
     [[nodiscard]] static UUID MakeRandomRFC4122V4();
 
-    [[nodiscard]] static UUID MakeRFC4122V5(std::span<u8, 16> sha1);
+    [[nodiscard]] static UUID MakeRFC4122V5(std::span<u8, 20> sha1);
 
     friend constexpr bool operator==(const UUID& lhs, const UUID& rhs) = default;
 };

src/common/zbic_compression.cpp

@@ -1,40 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include <cstring>
-
-#include "common/zbic_compression.h"
-
-#define ZSTD_ZBIC_SUPPORT 1
-#define ZSTDLIB_VISIBLE static
-#define ZSTDLIB_HIDDEN static
-#define ZSTDERRORLIB_VISIBLE static
-#define ZSTDERRORLIB_HIDDEN static
-#undef ZSTD_MULTITHREAD
-
-#include "zstd.h"
-#include "zstd.c"
-
-namespace Common::Compression {
-
-bool IsZBIC(std::span<const u8> src) {
-    if (src.size() < sizeof(u32)) {
-        return false;
-    }
-    u32 magic = 0;
-    std::memcpy(&magic, src.data(), sizeof(u32));
-    return magic == ZSTD_MAGICNUMBER; // 0x4349425A ("ZBIC")
-}
-
-int DecompressDataZBIC(std::span<u8> dst, std::span<const u8> src) {
-    if (dst.empty() || src.empty()) {
-        return -1;
-    }
-    const size_t res = ZSTD_decompress(dst.data(), dst.size(), src.data(), src.size());
-    if (ZSTD_isError(res)) {
-        return -1;
-    }
-    return static_cast<int>(res);
-}
-
-} // namespace Common::Compression

src/common/zbic_compression.h

@@ -1,15 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#pragma once
-
-#include <span>
-#include "common/common_types.h"
-
-namespace Common::Compression {
-
-[[nodiscard]] bool IsZBIC(std::span<const u8> src);
-
-[[nodiscard]] int DecompressDataZBIC(std::span<u8> dst, std::span<const u8> src);
-
-} // namespace Common::Compression

src/core/CMakeLists.txt

@@ -23,8 +23,6 @@ add_library(core STATIC
     core_timing.h
     cpu_manager.cpp
     cpu_manager.h
-    launch_params.cpp
-    launch_params.h
     crypto/aes_util.cpp
     crypto/aes_util.h
     crypto/ctr_encryption_layer.cpp
@@ -798,8 +796,6 @@ add_library(core STATIC
     hle/service/ns/application_manager_interface.h
     hle/service/ns/application_version_interface.cpp
     hle/service/ns/application_version_interface.h
-    hle/service/ns/async_result.cpp
-    hle/service/ns/async_result.h
     hle/service/ns/content_management_interface.cpp
     hle/service/ns/content_management_interface.h
     hle/service/ns/develop_interface.cpp
@@ -1205,9 +1201,6 @@ endif()
 
 target_include_directories(core PRIVATE ${OPUS_INCLUDE_DIRS})
 target_link_libraries(core PUBLIC common PRIVATE audio_core hid_core network video_core nx_tzdb tz)
-if (MSVC)
-    target_link_libraries(core PRIVATE getopt)
-endif()
 
 if (BOOST_NO_HEADERS)
     target_link_libraries(core PUBLIC Boost::container Boost::heap Boost::asio Boost::process Boost::crc)

src/core/arm/dynarmic/arm_dynarmic_32.cpp

@@ -22,15 +22,21 @@ DynarmicCallbacks32::DynarmicCallbacks32(ArmDynarmic32& parent, Kernel::KProcess
     , m_check_memory_access{m_debugger_enabled || !Settings::values.cpuopt_ignore_memory_aborts.GetValue()}
 {}
 
-u64 DynarmicCallbacks32::MemoryRead(u32 vaddr, size_t size) {
+u8 DynarmicCallbacks32::MemoryRead8(u32 vaddr) {
-    CheckMemoryAccess(vaddr, size, Kernel::DebugWatchpointType::Read);
+    CheckMemoryAccess(vaddr, 1, Kernel::DebugWatchpointType::Read);
-    switch (size) {
+    return m_memory.Read8(vaddr);
-    case sizeof(u64): return m_memory.Read64(vaddr);
+}
-    case sizeof(u32): return m_memory.Read32(vaddr);
+u16 DynarmicCallbacks32::MemoryRead16(u32 vaddr) {
-    case sizeof(u16): return m_memory.Read16(vaddr);
+    CheckMemoryAccess(vaddr, 2, Kernel::DebugWatchpointType::Read);
-    case sizeof(u8): return m_memory.Read8(vaddr);
+    return m_memory.Read16(vaddr);
-    default: UNREACHABLE();
+}
-    }
+u32 DynarmicCallbacks32::MemoryRead32(u32 vaddr) {
+    CheckMemoryAccess(vaddr, 4, Kernel::DebugWatchpointType::Read);
+    return m_memory.Read32(vaddr);
+}
+u64 DynarmicCallbacks32::MemoryRead64(u32 vaddr) {
+    CheckMemoryAccess(vaddr, 8, Kernel::DebugWatchpointType::Read);
+    return m_memory.Read64(vaddr);
 }
 
 std::optional<u32> DynarmicCallbacks32::MemoryReadCode(u32 vaddr) {
@@ -44,17 +50,27 @@ std::optional<u32> DynarmicCallbacks32::MemoryReadCode(u32 vaddr) {
     return cached_code_page.inst[(vaddr & Core::Memory::YUZU_PAGEMASK) / sizeof(u32)];
 }
 
-void DynarmicCallbacks32::MemoryWrite(Dynarmic::A32::VAddr vaddr, u64 value, size_t size) {
+void DynarmicCallbacks32::MemoryWrite8(u32 vaddr, u8 value) {
-    if (CheckMemoryAccess(vaddr, size, Kernel::DebugWatchpointType::Write)) {
+    if (CheckMemoryAccess(vaddr, 1, Kernel::DebugWatchpointType::Write)) {
-        switch (size) {
+        m_memory.Write8(vaddr, value);
-        case sizeof(u64): return m_memory.Write64(vaddr, value);
-        case sizeof(u32): return m_memory.Write32(vaddr, u32(value));
-        case sizeof(u16): return m_memory.Write16(vaddr, u16(value));
-        case sizeof(u8): return m_memory.Write8(vaddr, u8(value));
-        default: UNREACHABLE();
-        }
     }
 }
+void DynarmicCallbacks32::MemoryWrite16(u32 vaddr, u16 value) {
+    if (CheckMemoryAccess(vaddr, 2, Kernel::DebugWatchpointType::Write)) {
+        m_memory.Write16(vaddr, value);
+    }
+}
+void DynarmicCallbacks32::MemoryWrite32(u32 vaddr, u32 value) {
+    if (CheckMemoryAccess(vaddr, 4, Kernel::DebugWatchpointType::Write)) {
+        m_memory.Write32(vaddr, value);
+    }
+}
+void DynarmicCallbacks32::MemoryWrite64(u32 vaddr, u64 value) {
+    if (CheckMemoryAccess(vaddr, 8, Kernel::DebugWatchpointType::Write)) {
+        m_memory.Write64(vaddr, value);
+    }
+}
+
 bool DynarmicCallbacks32::MemoryWriteExclusive8(u32 vaddr, u8 value, u8 expected) {
     return CheckMemoryAccess(vaddr, 1, Kernel::DebugWatchpointType::Write) &&
             m_memory.WriteExclusive8(vaddr, value, expected);
@@ -161,7 +177,7 @@ void ArmDynarmic32::MakeJit(Common::PageTable* page_table) {
         config.page_table = reinterpret_cast<std::array<std::uint8_t*, NumPageTableEntries>*>(
             const_cast<Common::PageTable::PageEntryData*>(page_table->entries.data()));
         config.page_table_pointer_mask = Common::PageTable::ATTRIBUTE_MASK;
-        config.page_table_marked_bit = uint8_t(0);
+        config.page_table_marked_bit = 0;
         config.absolute_offset_page_table = true;
         config.detect_misaligned_access_via_page_table = 16 | 32 | 64 | 128;
         config.only_detect_misalignment_via_page_table_on_page_boundary = true;
@@ -177,7 +193,7 @@ void ArmDynarmic32::MakeJit(Common::PageTable* page_table) {
             Kernel::Board::Nintendo::Nx::KSystemControl::Init::GetIntendedMemorySize()) < (1ULL << 39)) {
             // Systems like FreeBSD allocate memory really low by default, and since we pack our page table entries,
             // we have to manually sign extend when our actual pointer is negative.
-            config.page_table_sign_extension = std::uint8_t(Common::PageTable::SIGN_BIT);
+            config.page_table_sign_extension = Common::PageTable::SIGN_BIT;
         }
     }
 

src/core/arm/dynarmic/arm_dynarmic_32.h

@@ -30,12 +30,18 @@ class System;
 class DynarmicCallbacks32 : public Dynarmic::A32::UserCallbacks {
 public:
     explicit DynarmicCallbacks32(ArmDynarmic32& parent, Kernel::KProcess* process);
-    u64 MemoryRead(u32 vaddr, size_t size) override;
+    u8 MemoryRead8(u32 vaddr) override;
+    u16 MemoryRead16(u32 vaddr) override;
+    u32 MemoryRead32(u32 vaddr) override;
+    u64 MemoryRead64(u32 vaddr) override;
     std::optional<u32> MemoryReadCode(u32 vaddr) override;
     void InstructionSynchronizationBarrierRaised() override {
         last_code_addr = u64(-1); //reset back, force refetch
     }
-    void MemoryWrite(Dynarmic::A32::VAddr vaddr, u64 value, size_t size) override;
+    void MemoryWrite8(u32 vaddr, u8 value) override;
+    void MemoryWrite16(u32 vaddr, u16 value) override;
+    void MemoryWrite32(u32 vaddr, u32 value) override;
+    void MemoryWrite64(u32 vaddr, u64 value) override;
     bool MemoryWriteExclusive8(u32 vaddr, u8 value, u8 expected) override;
     bool MemoryWriteExclusive16(u32 vaddr, u16 value, u16 expected) override;
     bool MemoryWriteExclusive32(u32 vaddr, u32 value, u32 expected) override;

src/core/arm/dynarmic/arm_dynarmic_64.cpp

@@ -10,7 +10,6 @@
 #include "core/arm/dynarmic/dynarmic_exclusive_monitor.h"
 #include "core/core_timing.h"
 #include "core/hle/kernel/k_process.h"
-#include "dynarmic/interface/A64/config.h"
 
 namespace Core {
 
@@ -22,15 +21,21 @@ DynarmicCallbacks64::DynarmicCallbacks64(ArmDynarmic64& parent, Kernel::KProcess
     , m_check_memory_access{m_debugger_enabled || !Settings::values.cpuopt_ignore_memory_aborts.GetValue()}
 {}
 
-u64 DynarmicCallbacks64::MemoryRead(u64 vaddr, size_t size) {
+u8 DynarmicCallbacks64::MemoryRead8(u64 vaddr) {
-    CheckMemoryAccess(vaddr, size, Kernel::DebugWatchpointType::Read);
+    CheckMemoryAccess(vaddr, 1, Kernel::DebugWatchpointType::Read);
-    switch (size) {
+    return m_memory.Read8(vaddr);
-    case sizeof(u64): return m_memory.Read64(vaddr);
+}
-    case sizeof(u32): return m_memory.Read32(vaddr);
+u16 DynarmicCallbacks64::MemoryRead16(u64 vaddr) {
-    case sizeof(u16): return m_memory.Read16(vaddr);
+    CheckMemoryAccess(vaddr, 2, Kernel::DebugWatchpointType::Read);
-    case sizeof(u8): return m_memory.Read8(vaddr);
+    return m_memory.Read16(vaddr);
-    default: UNREACHABLE();
+}
-    }
+u32 DynarmicCallbacks64::MemoryRead32(u64 vaddr) {
+    CheckMemoryAccess(vaddr, 4, Kernel::DebugWatchpointType::Read);
+    return m_memory.Read32(vaddr);
+}
+u64 DynarmicCallbacks64::MemoryRead64(u64 vaddr) {
+    CheckMemoryAccess(vaddr, 8, Kernel::DebugWatchpointType::Read);
+    return m_memory.Read64(vaddr);
 }
 Dynarmic::A64::Vector DynarmicCallbacks64::MemoryRead128(u64 vaddr) {
     CheckMemoryAccess(vaddr, 16, Kernel::DebugWatchpointType::Read);
@@ -48,15 +53,24 @@ std::optional<u32> DynarmicCallbacks64::MemoryReadCode(u64 vaddr) {
     return cached_code_page.inst[(vaddr & Core::Memory::YUZU_PAGEMASK) / sizeof(u32)];
 }
 
-void DynarmicCallbacks64::MemoryWrite(Dynarmic::A64::VAddr vaddr, u64 value, std::size_t size) {
+void DynarmicCallbacks64::MemoryWrite8(u64 vaddr, u8 value) {
-    if (CheckMemoryAccess(vaddr, size, Kernel::DebugWatchpointType::Write)) {
+    if (CheckMemoryAccess(vaddr, 1, Kernel::DebugWatchpointType::Write)) {
-        switch (size) {
+        m_memory.Write8(vaddr, value);
-        case sizeof(u64): return m_memory.Write64(vaddr, u64(value));
+    }
-        case sizeof(u32): return m_memory.Write32(vaddr, u32(value));
+}
-        case sizeof(u16): return m_memory.Write16(vaddr, u16(value));
+void DynarmicCallbacks64::MemoryWrite16(u64 vaddr, u16 value) {
-        case sizeof(u8): return m_memory.Write8(vaddr, u8(value));
+    if (CheckMemoryAccess(vaddr, 2, Kernel::DebugWatchpointType::Write)) {
-        default: UNREACHABLE();
+        m_memory.Write16(vaddr, value);
-        }
+    }
+}
+void DynarmicCallbacks64::MemoryWrite32(u64 vaddr, u32 value) {
+    if (CheckMemoryAccess(vaddr, 4, Kernel::DebugWatchpointType::Write)) {
+        m_memory.Write32(vaddr, value);
+    }
+}
+void DynarmicCallbacks64::MemoryWrite64(u64 vaddr, u64 value) {
+    if (CheckMemoryAccess(vaddr, 8, Kernel::DebugWatchpointType::Write)) {
+        m_memory.Write64(vaddr, value);
     }
 }
 void DynarmicCallbacks64::MemoryWrite128(u64 vaddr, Dynarmic::A64::Vector value) {
@@ -202,7 +216,7 @@ void ArmDynarmic64::MakeJit(Common::PageTable* page_table, std::size_t address_s
             const_cast<Common::PageTable::PageEntryData*>(page_table->entries.data()));
         config.page_table_address_space_bits = std::uint32_t(address_space_bits);
         config.page_table_pointer_mask = Common::PageTable::ATTRIBUTE_MASK;
-        config.page_table_marked_bit = uint8_t(0);
+        config.page_table_marked_bit = 0;
         config.silently_mirror_page_table = false;
         config.absolute_offset_page_table = true;
         config.detect_misaligned_access_via_page_table = 16 | 32 | 64 | 128;
@@ -221,7 +235,7 @@ void ArmDynarmic64::MakeJit(Common::PageTable* page_table, std::size_t address_s
             Kernel::Board::Nintendo::Nx::KSystemControl::Init::GetIntendedMemorySize()) < (1ULL << 39)) {
             // Systems like FreeBSD allocate memory really low by default, and since we pack our page table entries,
             // we have to manually sign extend when our actual pointer is negative.
-            config.page_table_sign_extension = std::uint8_t(Common::PageTable::SIGN_BIT);
+            config.page_table_sign_extension = Common::PageTable::SIGN_BIT;
         }
     }
 

src/core/arm/dynarmic/arm_dynarmic_64.h

@@ -16,7 +16,6 @@
 #include "common/hash.h"
 #include "core/arm/arm_interface.h"
 #include "core/arm/dynarmic/dynarmic_exclusive_monitor.h"
-#include "dynarmic/interface/A64/config.h"
 
 namespace Core::Memory {
 class Memory;
@@ -37,13 +36,19 @@ class DynarmicCallbacks64 : public Dynarmic::A64::UserCallbacks {
 public:
     explicit DynarmicCallbacks64(ArmDynarmic64& parent, Kernel::KProcess* process);
 
-    u64 MemoryRead(u64 vaddr, size_t size) override;
+    u8 MemoryRead8(u64 vaddr) override;
+    u16 MemoryRead16(u64 vaddr) override;
+    u32 MemoryRead32(u64 vaddr) override;
+    u64 MemoryRead64(u64 vaddr) override;
     Dynarmic::A64::Vector MemoryRead128(u64 vaddr) override;
     std::optional<u32> MemoryReadCode(u64 vaddr) override;
     void InstructionSynchronizationBarrierRaised() override {
         last_code_addr = u64(-1); //reset back, force refetch
     }
-    void MemoryWrite(Dynarmic::A64::VAddr vaddr, u64 value, std::size_t size) override;
+    void MemoryWrite8(u64 vaddr, u8 value) override;
+    void MemoryWrite16(u64 vaddr, u16 value) override;
+    void MemoryWrite32(u64 vaddr, u32 value) override;
+    void MemoryWrite64(u64 vaddr, u64 value) override;
     void MemoryWrite128(u64 vaddr, Dynarmic::A64::Vector value) override;
     bool MemoryWriteExclusive8(u64 vaddr, std::uint8_t value, std::uint8_t expected) override;
     bool MemoryWriteExclusive16(u64 vaddr, std::uint16_t value, std::uint16_t expected) override;

src/core/core.cpp

@@ -120,6 +120,7 @@ struct System::Impl {
 
         is_multicore = Settings::values.use_multi_core.GetValue();
         extended_memory_layout = Settings::values.memory_layout_mode.GetValue() != Settings::MemoryLayout::Memory_4Gb;
+        unified_memory = Settings::values.use_unified_memory.GetValue();
 
         core_timing.SetMulticore(is_multicore);
         core_timing.Initialize([&system]() { system.RegisterHostThread(); });
@@ -147,7 +148,8 @@ struct System::Impl {
             !device_memory.has_value() ||
             is_multicore != Settings::values.use_multi_core.GetValue() ||
             extended_memory_layout != (Settings::values.memory_layout_mode.GetValue() !=
-                                       Settings::MemoryLayout::Memory_4Gb);
+                                       Settings::MemoryLayout::Memory_4Gb) ||
+            unified_memory != Settings::values.use_unified_memory.GetValue();
 
         if (!must_reinitialize) {
             return;
@@ -158,6 +160,7 @@ struct System::Impl {
         is_multicore = Settings::values.use_multi_core.GetValue();
         extended_memory_layout =
             Settings::values.memory_layout_mode.GetValue() != Settings::MemoryLayout::Memory_4Gb;
+        unified_memory = Settings::values.use_unified_memory.GetValue();
 
         Initialize(system);
     }
@@ -535,6 +538,7 @@ struct System::Impl {
     std::atomic_bool is_powered_on{};
     bool is_multicore : 1 = false;
     bool extended_memory_layout : 1 = false;
+    bool unified_memory : 1 = false;
     bool exit_locked : 1 = false;
     bool exit_requested : 1 = false;
 

src/core/device_memory.cpp

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -12,9 +15,18 @@ constexpr size_t VirtualReserveSize = 1ULL << 38;
 constexpr size_t VirtualReserveSize = 1ULL << 39;
 #endif
 
+namespace {
+size_t ApplicationPoolOffset() {
+    using Init = Kernel::Board::Nintendo::Nx::KSystemControl::Init;
+    const size_t dram_size = Init::GetIntendedMemorySize();
+    const size_t application_pool_size = Init::GetApplicationPoolSize();
+    return dram_size > application_pool_size ? dram_size - application_pool_size : 0;
+}
+}
+
 DeviceMemory::DeviceMemory()
     : buffer{Kernel::Board::Nintendo::Nx::KSystemControl::Init::GetIntendedMemorySize(),
-             VirtualReserveSize} {}
+             VirtualReserveSize, ApplicationPoolOffset()} {}
 
 DeviceMemory::~DeviceMemory() = default;
 

src/core/device_memory_manager.h

@@ -20,6 +20,8 @@
 #include "common/scratch_buffer.h"
 #include "common/sparse_large_vector.h"
 
+struct AHardwareBuffer;
+
 namespace Core {
 
 constexpr size_t DEVICE_PAGEBITS = 12ULL;
@@ -95,6 +97,34 @@ public:
         ApplyOpOnPAddr(address, buffer, operation);
     }
 
+    u8* GetPhysicalBase() noexcept {
+        return reinterpret_cast<u8*>(physical_base);
+    }
+
+    const u8* GetPhysicalBase() const noexcept {
+        return reinterpret_cast<const u8*>(physical_base);
+    }
+
+    size_t GetPhysicalSize() const noexcept {
+        return physical_size;
+    }
+
+    std::span<AHardwareBuffer* const> GetBackingHardwareBuffers() const noexcept {
+        return ahb_windows;
+    }
+
+    size_t GetBackingHardwareBufferWindowSize() const noexcept {
+        return ahb_window_size;
+    }
+
+    size_t GetBackingHardwareBufferBase() const noexcept {
+        return ahb_base;
+    }
+
+    bool IsBackingShared() const noexcept {
+        return backing_is_shared;
+    }
+
     PAddr GetPhysicalRawAddressFromDAddr(DAddr address) const {
         PAddr subbits = PAddr(address & page_mask);
         auto paddr = tracked_entries[(address >> page_bits)].compressed_physical_ptr;
@@ -171,6 +201,11 @@ private:
     std::unique_ptr<DeviceMemoryManagerAllocator<Traits>> impl;
 
     const uintptr_t physical_base;
+    const size_t physical_size;
+    const std::span<AHardwareBuffer* const> ahb_windows;
+    const size_t ahb_window_size;
+    const size_t ahb_base;
+    const bool backing_is_shared;
     DeviceInterface* device_inter;
 
     struct TrackedEntry {

src/core/device_memory_manager.inc

@@ -171,6 +171,11 @@ struct DeviceMemoryManagerAllocator {
 template <typename Traits>
 DeviceMemoryManager<Traits>::DeviceMemoryManager(const DeviceMemory& device_memory_)
     : physical_base{uintptr_t(device_memory_.buffer.BackingBasePointer())}
+    , physical_size{device_memory_.buffer.BackingSize()}
+    , ahb_windows{device_memory_.buffer.BackingHardwareBuffers()}
+    , ahb_window_size{device_memory_.buffer.BackingHardwareBufferWindowSize()}
+    , ahb_base{device_memory_.buffer.BackingHardwareBufferBase()}
+    , backing_is_shared{device_memory_.buffer.IsBackingShared()}
     , device_inter{nullptr}
     , compressed_device_addr(1ULL << ((Settings::values.memory_layout_mode.GetValue() == Settings::MemoryLayout::Memory_4Gb ? physical_min_bits : physical_max_bits) - Memory::YUZU_PAGEBITS))
     , tracked_entries(device_as_size >> Memory::YUZU_PAGEBITS)

src/core/file_sys/ips_layer.cpp

@@ -35,20 +35,17 @@ static IPSFileType IdentifyMagic(std::span<const u8> magic) {
 }
 
 static bool IsEOF(IPSFileType type, std::span<const u8> magic) {
-    return (type == IPSFileType::IPS && magic.size() >= 3 && std::memcmp(magic.data(), "EOF", 3) == 0)
+    return (type == IPSFileType::IPS && magic.size() > 3 && std::memcmp(magic.data(), "EOF", 3) == 0)
-        || (type == IPSFileType::IPS32 && magic.size() >= 4 && std::memcmp(magic.data(), "EEOF", 4) == 0);
+        || (type == IPSFileType::IPS32 && magic.size() > 4 && std::memcmp(magic.data(), "EEOF", 4) == 0);
 }
 
 VirtualFile PatchIPS(const VirtualFile& in, const VirtualFile& ips) {
     if (in == nullptr || ips == nullptr)
         return nullptr;
 
-    const auto type = IdentifyMagic(ips->ReadBytes(0x5));
-    if (type == IPSFileType::Error)
-        return nullptr;
-
     auto in_data = in->ReadAllBytes();
-    if (in_data.size() == 0)
+    auto const type = IdentifyMagic(in_data);
+    if (type == IPSFileType::Error)
         return nullptr;
 
     std::vector<u8> temp(type == IPSFileType::IPS ? 3 : 4);
@@ -103,7 +100,8 @@ VirtualFile PatchIPS(const VirtualFile& in, const VirtualFile& ips) {
 
 
 struct IPSwitchRecord {
-    std::vector<uint8_t> data;
+    std::array<uint8_t, 256 - sizeof(size_t)> data;
+    size_t count;
 };
 struct IPSwitchCompiler::IPSwitchPatch {
     ::Common::unordered_map<u32, IPSwitchRecord> records;
@@ -124,23 +122,22 @@ static IPSwitchRecord EscapeStringSequences(std::string_view sv) {
     IPSwitchRecord r{};
     for (auto it = sv.cbegin(); it < sv.cend(); ) {
         if (*it == '\\' && it + 1 < sv.cend()) {
-            r.data.push_back([it]() {
+            switch (it[1]) {
-                switch (it[1]) {
+            case 'a': r.data[r.count] = '\a'; break;
-                case 'a': return '\a';
+            case 'b': r.data[r.count] = '\b'; break;
-                case 'b': return '\b';
+            case 'e': r.data[r.count] = '\e'; break;
-                case 'e': return '\e';
+            case 'f': r.data[r.count] = '\f'; break;
-                case 'f': return '\f';
+            case 'n': r.data[r.count] = '\n'; break;
-                case 'n': return '\n';
+            case 'r': r.data[r.count] = '\r'; break;
-                case 'r': return '\r';
+            case 't': r.data[r.count] = '\t'; break;
-                case 't': return '\t';
+            case 'v': r.data[r.count] = '\v'; break;
-                case 'v': return '\v';
+            case '?': r.data[r.count] = '\?'; break;
-                case '?': return '\?';
+            default: r.data[r.count] = it[1]; break;
-                default: return it[1];
+            }
-                }
+            ++r.count;
-            }());
             it += 2;
         } else {
-            r.data.push_back(*it);
+            ++r.count;
             ++it;
         }
     }
@@ -226,8 +223,8 @@ void IPSwitchCompiler::Parse(std::span<u8 const> bytes) {
                 if (start <= line.cend() && end <= line.cend()) {
                     // Actually IPS wants ordering from {lsb, ..., msb} -- so LE and BE are inverted, fun!
                     auto const hs = Common::HexStringToVector({start, end}, is_little_endian);
-                    r.data.resize(hs.size());
                     std::memcpy(r.data.data(), hs.data(), hs.size());
+                    r.count = hs.size();
                     LOG_INFO(Loader, "[H] value @ {:#08X}", offset);
                     patches.back().records.insert_or_assign(u32(offset), std::move(r));
                 } else {
@@ -296,7 +293,7 @@ VirtualFile IPSwitchCompiler::Apply(const VirtualFile& in) const {
         if (patch.enabled) {
             for (const auto& record : patch.records) {
                 if (record.first < in_data.size()) {
-                    auto replace_size = record.second.data.size();
+                    auto replace_size = record.second.count;
                     if (record.first + replace_size > in_data.size())
                         replace_size = in_data.size() - record.first;
                     std::memcpy(in_data.data() + record.first, record.second.data.data(), replace_size);

src/core/file_sys/patch_manager.cpp

@@ -9,7 +9,6 @@
 #include <cstddef>
 #include <cstring>
 
-#include "common/assert.h"
 #include "common/hex_util.h"
 #include "common/logging.h"
 #include "common/settings.h"
@@ -157,15 +156,12 @@ std::string GetUpdateVersionStringFromSlot(const ContentProvider* provider, u64
     NACP nacp{nacp_file};
     return nacp.GetVersionString();
 }
-YUZU_NO_INLINE std::optional<u64> GetParentApplicationId(const ContentProvider* provider, u64 title_id) {
-    return provider == nullptr ? std::nullopt : provider->GetParentApplicationId(title_id);
-}
 } // Anonymous namespace
 
 PatchManager::PatchManager(u64 title_id_,
                            const Service::FileSystem::FileSystemController& fs_controller_,
                            const ContentProvider& content_provider_)
-    : title_id{title_id_}, parent_title_id{GetParentApplicationId(std::addressof(content_provider_), title_id_)}, fs_controller{fs_controller_}, content_provider{content_provider_} {}
+    : title_id{title_id_}, fs_controller{fs_controller_}, content_provider{content_provider_} {}
 
 PatchManager::~PatchManager() = default;
 
@@ -173,35 +169,13 @@ u64 PatchManager::GetTitleID() const {
     return title_id;
 }
 
-VirtualDir PatchManager::GetModificationLoadRoot(bool sdmc) const {
-    const auto get_root = [&](u64 id) {
-        return sdmc ? fs_controller.GetSDMCModificationLoadRoot(id) : fs_controller.GetModificationLoadRoot(id);
-    };
-    auto root = get_root(title_id);
-    if (!parent_title_id) {
-        return root;
-    }
-    std::vector<VirtualDir> roots{std::move(root), get_root(*parent_title_id)};
-    std::erase(roots, nullptr);
-    return LayeredVfsDirectory::MakeLayeredDirectory(std::move(roots));
-}
-
-std::vector<std::string> PatchManager::GetDisabledAddons() const {
-    auto disabled = Settings::values.disabled_addons[title_id];
-    if (parent_title_id) {
-        const auto& shared = Settings::values.disabled_addons[*parent_title_id];
-        disabled.insert(disabled.end(), shared.begin(), shared.end());
-    }
-    return disabled;
-}
-
 VirtualDir PatchManager::PatchExeFS(VirtualDir exefs) const {
     LOG_INFO(Loader, "Patching ExeFS for title_id={:016X}", title_id);
 
     if (exefs == nullptr)
         return exefs;
 
-    const auto disabled = GetDisabledAddons();
+    const auto& disabled = Settings::values.disabled_addons[title_id];
 
     bool update_disabled = true;
     std::optional<u32> enabled_version;
@@ -329,8 +303,8 @@ VirtualDir PatchManager::PatchExeFS(VirtualDir exefs) const {
     }
 
     // LayeredExeFS
-    const auto load_dir = GetModificationLoadRoot();
+    const auto load_dir = fs_controller.GetModificationLoadRoot(title_id);
-    const auto sdmc_load_dir = GetModificationLoadRoot(true);
+    const auto sdmc_load_dir = fs_controller.GetSDMCModificationLoadRoot(title_id);
 
     std::vector<VirtualDir> patch_dirs = {sdmc_load_dir};
     if (load_dir != nullptr) {
@@ -372,7 +346,7 @@ VirtualDir PatchManager::PatchExeFS(VirtualDir exefs) const {
 }
 
 std::vector<VirtualFile> PatchManager::CollectPatches(const std::vector<VirtualDir>& patch_dirs, const std::string& build_id) const {
-    const auto disabled = GetDisabledAddons();
+    const auto& disabled = Settings::values.disabled_addons[title_id];
     const auto nso_build_id = fmt::format("{:0<64}", build_id);
 
     std::vector<VirtualFile> out;
@@ -431,7 +405,7 @@ std::vector<u8> PatchManager::PatchNSO(const std::vector<u8>& nso, const std::st
 
     LOG_INFO(Loader, "Patching NSO for name={}, build_id={}", name, build_id);
 
-    const auto load_dir = GetModificationLoadRoot();
+    const auto load_dir = fs_controller.GetModificationLoadRoot(title_id);
     if (load_dir == nullptr) {
         LOG_ERROR(Loader, "Cannot load mods for invalid title_id={:016X}", title_id);
         return nso;
@@ -474,7 +448,7 @@ bool PatchManager::HasNSOPatch(const BuildID& build_id_, std::string_view name)
 
     LOG_INFO(Loader, "Querying NSO patch existence for build_id={}, name={}", build_id, name);
 
-    const auto load_dir = GetModificationLoadRoot();
+    const auto load_dir = fs_controller.GetModificationLoadRoot(title_id);
     if (load_dir == nullptr) {
         LOG_ERROR(Loader, "Cannot load mods for invalid title_id={:016X}", title_id);
         return false;
@@ -488,13 +462,13 @@ bool PatchManager::HasNSOPatch(const BuildID& build_id_, std::string_view name)
 }
 
 std::vector<Core::Memory::CheatEntry> PatchManager::CreateCheatList(const BuildID& build_id_) const {
-    const auto load_dir = GetModificationLoadRoot();
+    const auto load_dir = fs_controller.GetModificationLoadRoot(title_id);
     if (load_dir == nullptr) {
         LOG_ERROR(Loader, "Cannot load mods for invalid title_id={:016X}", title_id);
         return {};
     }
 
-    const auto disabled = GetDisabledAddons();
+    const auto& disabled = Settings::values.disabled_addons[title_id];
     auto patch_dirs = load_dir->GetSubdirectories();
     std::sort(patch_dirs.begin(), patch_dirs.end(), [](auto const& l, auto const& r) { return l->GetName() < r->GetName(); });
 
@@ -528,16 +502,17 @@ std::vector<Core::Memory::CheatEntry> PatchManager::CreateCheatList(const BuildI
     return out;
 }
 
-void PatchManager::ApplyLayeredFS(VirtualFile& romfs, ContentRecordType type) const {
+static void ApplyLayeredFS(VirtualFile& romfs, u64 title_id, ContentRecordType type,
-    const auto load_dir = GetModificationLoadRoot();
+                           const Service::FileSystem::FileSystemController& fs_controller) {
-    const auto sdmc_load_dir = GetModificationLoadRoot(true);
+    const auto load_dir = fs_controller.GetModificationLoadRoot(title_id);
+    const auto sdmc_load_dir = fs_controller.GetSDMCModificationLoadRoot(title_id);
     if ((type != ContentRecordType::Program && type != ContentRecordType::Data &&
          type != ContentRecordType::HtmlDocument) ||
         (load_dir == nullptr && sdmc_load_dir == nullptr)) {
         return;
     }
 
-    const auto disabled = GetDisabledAddons();
+    const auto& disabled = Settings::values.disabled_addons[title_id];
     std::vector<VirtualDir> patch_dirs = load_dir->GetSubdirectories();
     if (std::find(disabled.cbegin(), disabled.cend(), "SDMC") == disabled.cend()) {
         patch_dirs.push_back(sdmc_load_dir);
@@ -616,7 +591,7 @@ VirtualFile PatchManager::PatchRomFS(const NCA* base_nca, VirtualFile base_romfs
 
     // Game Updates
     const auto update_tid = GetUpdateTitleID(title_id);
-    const auto disabled = GetDisabledAddons();
+    const auto& disabled = Settings::values.disabled_addons[title_id];
 
     bool update_disabled = true;
     std::optional<u32> enabled_version;
@@ -723,7 +698,7 @@ VirtualFile PatchManager::PatchRomFS(const NCA* base_nca, VirtualFile base_romfs
 
     // LayeredFS
     if (apply_layeredfs) {
-        ApplyLayeredFS(romfs, type);
+        ApplyLayeredFS(romfs, title_id, type, fs_controller);
     }
 
     return romfs;
@@ -1097,22 +1072,15 @@ std::vector<Patch> PatchManager::GetPatches(VirtualFile update_raw) const {
 std::optional<u32> PatchManager::GetGameVersion() const {
     const auto update_tid = GetUpdateTitleID(title_id);
     if (content_provider.HasEntry(update_tid, ContentRecordType::Program)) {
-        const auto version = content_provider.GetEntryVersion(update_tid);
+        return content_provider.GetEntryVersion(update_tid);
-        return version || !parent_title_id ? version : content_provider.GetEntryVersion(GetUpdateTitleID(*parent_title_id));
     }
 
-    const auto version = content_provider.GetEntryVersion(title_id);
+    return content_provider.GetEntryVersion(title_id);
-    return version || !parent_title_id ? version : content_provider.GetEntryVersion(*parent_title_id);
 }
 
 PatchManager::Metadata PatchManager::GetControlMetadata() const {
     const auto base_control_nca = content_provider.GetEntry(title_id, ContentRecordType::Control);
     if (base_control_nca == nullptr) {
-        if (parent_title_id) {
-            const auto control_id = content_provider.HasEntry(*parent_title_id, ContentRecordType::Control) ? *parent_title_id : GetUpdateTitleID(*parent_title_id);
-            const PatchManager parent{control_id, fs_controller, content_provider};
-            return parent.GetControlMetadata();
-        }
         return {};
     }
 

src/core/file_sys/patch_manager.h

@@ -109,14 +109,10 @@ public:
     [[nodiscard]] static PatchManager::Metadata GetMetadataFromBaseOrUpdate(Core::System& system, u64 application_id) noexcept;
 
 private:
-    [[nodiscard]] VirtualDir GetModificationLoadRoot(bool sdmc = false) const;
-    [[nodiscard]] std::vector<std::string> GetDisabledAddons() const;
-    void ApplyLayeredFS(VirtualFile& romfs, ContentRecordType type) const;
     [[nodiscard]] std::vector<VirtualFile> CollectPatches(const std::vector<VirtualDir>& patch_dirs,
                                                           const std::string& build_id) const;
 
     u64 title_id;
-    std::optional<u64> parent_title_id;
     const Service::FileSystem::FileSystemController& fs_controller;
     const ContentProvider& content_provider;
 };

src/core/file_sys/registered_cache.cpp

@@ -5,7 +5,6 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <algorithm>
-#include <limits>
 #include <random>
 #include <regex>
 #include <openssl/evp.h>
@@ -349,22 +348,6 @@ std::vector<ContentProviderEntry> ContentProvider::ListEntries() const {
     return ListEntriesFilter(std::nullopt, std::nullopt, std::nullopt);
 }
 
-std::optional<u64> ContentProvider::GetParentApplicationId(u64 program_id) const {
-    const auto application_id = GetBaseTitleID(program_id);
-    const auto program_index = program_id - application_id;
-    if (program_index == 0 || program_index > std::numeric_limits<u8>::max()) {
-        return std::nullopt;
-    }
-    if (!ListEntriesFilter(TitleType::Application, ContentRecordType::Meta, program_id).empty()) {
-        return std::nullopt;
-    }
-    if ((!ListEntriesFilter(TitleType::Application, ContentRecordType::Meta, application_id).empty() && HasEntry(program_id, ContentRecordType::Program))
-     || (!ListEntriesFilter(TitleType::Update, ContentRecordType::Meta, GetUpdateTitleID(application_id)).empty() && HasEntry(GetUpdateTitleID(program_id), ContentRecordType::Program))) {
-        return application_id;
-    }
-    return std::nullopt;
-}
-
 PlaceholderCache::PlaceholderCache(VirtualDir dir_) : dir(std::move(dir_)) {}
 
 bool PlaceholderCache::Create(const NcaID& id, u64 size) const {

src/core/file_sys/registered_cache.h

@@ -100,8 +100,6 @@ public:
         std::optional<TitleType> title_type = {}, std::optional<ContentRecordType> record_type = {},
         std::optional<u64> title_id = {}) const = 0;
 
-    [[nodiscard]] std::optional<u64> GetParentApplicationId(u64 program_id) const;
-
 protected:
     // A single instance of KeyManager to be used by GetEntry()
     Core::Crypto::KeyManager& keys = Core::Crypto::KeyManager::Instance();

src/core/file_sys/savedata_factory.h

@@ -1,6 +1,3 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 

src/core/file_sys/vfs/vfs_real.cpp

@@ -109,7 +109,8 @@ VirtualFile RealVfsFilesystem::OpenFileFromEntry(std::string_view path_, std::op
     auto reference = std::make_unique<FileReference>();
     this->InsertReferenceIntoListLocked(*reference);
 
-    auto file = std::make_shared<RealVfsFile>(*this, std::move(reference), path, perms, size, std::move(parent_path));
+    auto file = std::shared_ptr<RealVfsFile>(
+        new RealVfsFile(*this, std::move(reference), path, perms, size, std::move(parent_path)));
     cache[path] = file;
 
     return file;
@@ -176,7 +177,7 @@ bool RealVfsFilesystem::DeleteFile(std::string_view path_) {
 
 VirtualDir RealVfsFilesystem::OpenDirectory(std::string_view path_, OpenMode perms) {
     const auto path = FS::SanitizePath(path_, FS::DirectorySeparator::PlatformDefault);
-    return std::make_shared<RealVfsDirectory>(*this, path, perms);
+    return std::shared_ptr<RealVfsDirectory>(new RealVfsDirectory(*this, path, perms));
 }
 
 VirtualDir RealVfsFilesystem::CreateDirectory(std::string_view path_, OpenMode perms) {
@@ -184,7 +185,7 @@ VirtualDir RealVfsFilesystem::CreateDirectory(std::string_view path_, OpenMode p
     if (!FS::CreateDirs(path)) {
         return nullptr;
     }
-    return std::make_shared<RealVfsDirectory>(*this, path, perms);
+    return std::shared_ptr<RealVfsDirectory>(new RealVfsDirectory(*this, path, perms));
 }
 
 VirtualDir RealVfsFilesystem::CopyDirectory(std::string_view old_path_,

src/core/file_sys/vfs/vfs_real.h

@@ -82,9 +82,6 @@ class RealVfsFile : public VfsFile {
     friend class RealVfsFilesystem;
 
 public:
-    RealVfsFile(RealVfsFilesystem& base, std::unique_ptr<FileReference> reference,
-                const std::string& path, OpenMode perms = OpenMode::Read,
-                std::optional<u64> size = {}, std::optional<std::string> parent_path = {});
     ~RealVfsFile() override;
 
     std::string GetName() const override;
@@ -98,6 +95,9 @@ public:
     bool Rename(std::string_view name) override;
 
 private:
+    RealVfsFile(RealVfsFilesystem& base, std::unique_ptr<FileReference> reference,
+                const std::string& path, OpenMode perms = OpenMode::Read,
+                std::optional<u64> size = {}, std::optional<std::string> parent_path = {});
 
     RealVfsFilesystem& base;
     std::unique_ptr<FileReference> reference;
@@ -113,8 +113,6 @@ class RealVfsDirectory : public VfsDirectory {
     friend class RealVfsFilesystem;
 
 public:
-    RealVfsDirectory(RealVfsFilesystem& base, const std::string& path,
-                     OpenMode perms = OpenMode::Read);
     ~RealVfsDirectory() override;
 
     VirtualFile GetFileRelative(std::string_view relative_path) const override;
@@ -140,6 +138,9 @@ public:
     std::map<std::string, VfsEntryType, std::less<>> GetEntries() const override;
 
 private:
+    RealVfsDirectory(RealVfsFilesystem& base, const std::string& path,
+                     OpenMode perms = OpenMode::Read);
+
     template <typename T, typename R>
     std::vector<std::shared_ptr<R>> IterateEntries() const;
 

src/core/frontend/applets/controller.cpp

@@ -12,7 +12,6 @@
 #include "hid_core/frontend/emulated_controller.h"
 #include "hid_core/hid_core.h"
 #include "hid_core/hid_types.h"
-#include <array>
 
 namespace Core::Frontend {
 
@@ -30,39 +29,23 @@ void DefaultControllerApplet::ReconfigureControllers(ReconfigureCallback callbac
 
     const std::size_t min_supported_players =
         parameters.enable_single_mode ? 1 : parameters.min_players;
-    using Core::HID::NpadStyleIndex;
-    const std::size_t max_supported_players = parameters.enable_single_mode ? 1 : parameters.max_players;
-    std::size_t num_selected_players = 0;
-    std::array<bool, HID::HIDCore::available_controllers> keep_connected{};
 
-    // reserve existing AND valid players before filling slots. include Handheld, but not other
+    // Disconnect Handheld first.
-    for (std::size_t index = 0; index < hid_core.available_controllers - 1; ++index) {
-        const auto* controller = hid_core.GetEmulatedControllerByIndex(index);
-        if (!parameters.keep_controllers_connected || !controller->IsConnected() || num_selected_players >= max_supported_players) continue;
-
-        const auto style = controller->GetNpadStyleIndex();
-        keep_connected[index] =
-            (style == NpadStyleIndex::Fullkey && parameters.allow_pro_controller) ||
-            (style == NpadStyleIndex::JoyconDual && parameters.allow_dual_joycons) ||
-            (style == NpadStyleIndex::JoyconLeft && parameters.allow_left_joycon) ||
-            (style == NpadStyleIndex::JoyconRight && parameters.allow_right_joycon) ||
-            (style == NpadStyleIndex::Handheld && parameters.enable_single_mode && parameters.allow_handheld && !Settings::IsDockedMode()) ||
-            (style == NpadStyleIndex::GameCube && parameters.allow_gamecube_controller);
-        num_selected_players += keep_connected[index];
-    }
     auto* handheld = hid_core.GetEmulatedController(Core::HID::NpadIdType::Handheld);
-    if (!keep_connected[hid_core.available_controllers - 2]) handheld->Disconnect();
+    handheld->Disconnect();
 
     // Deduce the best configuration based on the input parameters.
     for (std::size_t index = 0; index < hid_core.available_controllers - 2; ++index) {
         auto* controller = hid_core.GetEmulatedControllerByIndex(index);
 
-        if (keep_connected[index]) continue;
+        // First, disconnect all controllers regardless of the value of keep_controllers_connected.
+        // This makes it easy to connect the desired controllers.
         controller->Disconnect();
 
-        // only add players still needed to reach the minimum
+        // Only connect the minimum number of required players.
-        if (num_selected_players >= min_supported_players) continue;
+        if (index >= min_supported_players) {
-        ++num_selected_players;
+            continue;
+        }
 
         // Connect controllers based on the following priority list from highest to lowest priority:
         // Pro Controller -> Dual Joycons -> Left Joycon/Right Joycon -> Handheld

src/core/hle/kernel/k_scheduler.cpp

@@ -465,10 +465,6 @@ void KScheduler::ScheduleImplFiber(KernelCore& kernel) {
         // Check if we need scheduling. If we do, then we can't complete the switch and should
         // retry.
         if (m_state.needs_scheduling.load(std::memory_order_seq_cst)) {
-            // Some libc++ lazily init mutex
-            [[maybe_unused]] auto const can_lock = highest_priority_thread->m_context_guard.try_lock();
-            DEBUG_ASSERT(!can_lock);
-
             // Our switch failed.
             // We should unlock the thread context, and then retry.
             highest_priority_thread->m_context_guard.unlock();
@@ -500,10 +496,6 @@ void KScheduler::Unload(KernelCore& kernel, KThread* thread) {
 
     // Check if the thread is terminated by checking the DPC flags.
     if ((thread->GetStackParameters().dpc_flags & static_cast<u32>(DpcFlag::Terminated)) == 0) {
-        // Some libc++ lazily init mutex
-        [[maybe_unused]] auto const can_lock = thread->m_context_guard.try_lock();
-        DEBUG_ASSERT(!can_lock);
-
         // The thread isn't terminated, so we want to unlock it.
         thread->m_context_guard.unlock();
     }

src/core/hle/kernel/k_slab_heap.h

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
@@ -12,6 +12,7 @@
 #include "common/atomic_ops.h"
 #include "common/common_funcs.h"
 #include "common/common_types.h"
+#include "common/spin_lock.h"
 
 namespace Kernel {
 
@@ -29,7 +30,7 @@ public:
     };
 
 public:
-    KSlabHeapImpl() = default;
+    constexpr KSlabHeapImpl() = default;
 
     void Initialize() {
         ASSERT(m_head == nullptr);
@@ -67,7 +68,7 @@ public:
 
 private:
     std::atomic<Node*> m_head{};
-    std::mutex m_lock;
+    Common::SpinLock m_lock;
 };
 
 } // namespace impl

src/core/hle/kernel/k_thread.h

@@ -19,6 +19,7 @@
 
 #include "common/intrusive_red_black_tree.h"
 #include "common/scratch_buffer.h"
+#include "common/spin_lock.h"
 #include "core/arm/arm_interface.h"
 #include "core/hle/kernel/k_affinity_mask.h"
 #include "core/hle/kernel/k_light_lock.h"
@@ -919,7 +920,7 @@ private:
     bool m_resource_limit_release_hint{};
     bool m_is_kernel_address_key{};
     StackParameters m_stack_parameters{};
-    std::mutex m_context_guard{};
+    Common::SpinLock m_context_guard{};
 
     // For emulation
     std::shared_ptr<Common::Fiber> m_host_context{};

src/core/hle/service/acc/profile_manager.h

@@ -23,12 +23,6 @@ constexpr std::size_t profile_username_size{32};
 using ProfileUsername = std::array<u8, profile_username_size>;
 using UserIDArray = std::array<Common::UUID, MAX_USERS>;
 
-// This is nn::account::Uid
-struct Uid {
-    std::array<u8, 0x10> unk0;
-};
-static_assert(sizeof(Uid) == 0x10);
-
 /// Contains extra data related to a user.
 /// TODO: RE this structure
 struct UserData {

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

@@ -29,7 +29,6 @@
 #include "core/hle/service/am/frontend/applet_web_browser.h"
 #include "core/hle/service/am/frontend/applets.h"
 #include "core/hle/service/am/service/storage.h"
-#include "core/hle/service/am/window_system.h"
 #include "core/hle/service/sm/sm.h"
 
 namespace Service::AM::Frontend {
@@ -73,16 +72,10 @@ void FrontendApplet::PushInteractiveOutData(std::shared_ptr<IStorage> storage) {
 
 void FrontendApplet::Exit() {
     auto applet_ = applet.lock();
-    {
+
-        std::scoped_lock lk{applet_->lock};
+    std::scoped_lock lk{applet_->lock};
-        applet_->is_completed = true;
+    applet_->is_completed = true;
-        applet_->state_changed_event.Signal(system.Kernel());
+    applet_->state_changed_event.Signal(system.Kernel());
-    }
-    if (auto caller_applet = applet_->caller_applet.lock()) {
-        std::scoped_lock lk{caller_applet->lock};
-        std::erase(caller_applet->child_applets, applet_);
-    }
-    if (auto* window_system = system.GetAppletManager().GetWindowSystem()) window_system->RequestUpdate();
 }
 
 FrontendAppletSet::FrontendAppletSet() = default;

src/core/hle/service/am/lifecycle_manager.h

@@ -92,13 +92,6 @@ public:
         }
     }
 
-    void RequestFocusStateChangedNotification(Kernel::KernelCore& kernel) {
-        if (m_focus_state_changed_notification_enabled) {
-            m_has_focus_state_changed = true;
-            this->SignalSystemEventIfNeeded(kernel);
-        }
-    }
-
     void OnOperationAndPerformanceModeChanged(Kernel::KernelCore& kernel);
 
 public:

src/core/hle/service/am/service/application_functions.cpp

@@ -347,22 +347,21 @@ Result IApplicationFunctions::NotifyRunning(Out<bool> out_became_running) {
 
 Result IApplicationFunctions::GetPseudoDeviceId(Out<Common::UUID> out_pseudo_device_id) {
     LOG_WARNING(Service_AM, "(stubbed)");
-    R_UNLESS(out_pseudo_device_id != nullptr, ResultUnknown);
+    R_UNLESS(out_pseudo_device_id, ResultUnknown);
 
     // This should be hashed with the device specific hash
     // for now this will do
     const auto res = FileSys::PatchManager::GetMetadataFromBaseOrUpdate(system, m_applet->program_id);
-    R_UNLESS(res.first != nullptr, ResultUnknown);
+    u8 hash[EVP_MAX_MD_SIZE];
-    std::array<u8, EVP_MAX_MD_SIZE> hash;
     unsigned int hash_len = 0;
     auto const seed = res.first->raw.seed_for_pseudo_device_id;
     EVP_MD_CTX *ctx = EVP_MD_CTX_new();
     auto const algorithm = EVP_sha1();
     EVP_DigestInit_ex(ctx, algorithm, nullptr);
     EVP_DigestUpdate(ctx, &seed, sizeof(seed));
-    EVP_DigestFinal_ex(ctx, hash.data(), &hash_len);
+    EVP_DigestFinal_ex(ctx, hash, &hash_len);
     EVP_MD_CTX_free(ctx);
-    *out_pseudo_device_id = Common::UUID::MakeRFC4122V5(std::span<u8, 16>{hash.begin(), hash.begin() + 16});
+    *out_pseudo_device_id = Common::UUID::MakeRFC4122V5(std::span<u8, 20>{hash, std::size(hash)});
     R_SUCCEED();
 }
 

src/core/hle/service/am/service/library_applet_accessor.cpp

@@ -164,15 +164,15 @@ Result ILibraryAppletAccessor::PushInData(SharedPointer<IStorage> storage) {
 Result ILibraryAppletAccessor::PopOutData(Out<SharedPointer<IStorage>> out_storage) {
     LOG_DEBUG(Service_AM, "called");
 
-    R_TRY(m_broker->GetOutData().Pop(system.Kernel(), out_storage.Get()));
     if (auto caller_applet = m_applet->caller_applet.lock(); caller_applet) {
-        std::scoped_lock lk{caller_applet->lock};
+        caller_applet->lifecycle_manager.GetSystemEvent().Signal(system.Kernel());
-        const bool focus_state_changed = caller_applet->lifecycle_manager.UpdateRequestedFocusState();
+        caller_applet->lifecycle_manager.RequestResumeNotification();
-        const bool is_front_app = m_applet->frontend && caller_applet->lifecycle_manager.IsApplication();
+        caller_applet->lifecycle_manager.GetSystemEvent().Clear(system.Kernel());
-        if (focus_state_changed) caller_applet->lifecycle_manager.SignalSystemEventIfNeeded(system.Kernel());
+        caller_applet->lifecycle_manager.UpdateRequestedFocusState();
-        else if (is_front_app) caller_applet->lifecycle_manager.RequestFocusStateChangedNotification(system.Kernel());
     }
 
+    R_TRY(m_broker->GetOutData().Pop(system.Kernel(), out_storage.Get()));
+
     if (m_applet->applet_id == AppletId::ProfileSelect && *out_storage) {
         auto impl = (*out_storage)->GetImpl();
 

src/core/hle/service/am/service/library_applet_creator.cpp

@@ -122,10 +122,7 @@ std::shared_ptr<ILibraryAppletAccessor> CreateGuestApplet(Core::System& system,
         auto broker = std::make_shared<AppletDataBroker>(system);
         applet->caller_applet = caller_applet;
         applet->caller_applet_broker = broker;
-        {
+        caller_applet->child_applets.push_back(applet);
-            std::scoped_lock lk{caller_applet->lock};
-            caller_applet->child_applets.push_back(applet);
-        }
         window_system.TrackApplet(applet, false);
         return std::make_shared<ILibraryAppletAccessor>(system, broker, applet);
     }
@@ -151,10 +148,10 @@ std::shared_ptr<ILibraryAppletAccessor> CreateFrontendApplet(Core::System& syste
     applet->caller_applet = caller_applet;
     applet->caller_applet_broker = storage;
     applet->frontend = system.GetFrontendAppletHolder().GetApplet(applet, applet_id, mode);
-    {
+    caller_applet->child_applets.push_back(applet);
-        std::scoped_lock lk{caller_applet->lock};
+
-        caller_applet->child_applets.push_back(applet);
+    window_system.TrackApplet(applet, false);
-    }
+
     return std::make_shared<ILibraryAppletAccessor>(system, storage, applet);
 }
 

src/core/hle/service/am/window_system.cpp

@@ -517,7 +517,7 @@ void WindowSystem::UpdateAppletStateLocked(Applet* applet, bool is_foreground, b
     // Layer ordering. Composition sorts back-to-front. Now with enums for calrity.
     s32 z_index = Background;
     if (is_overlay) {
-        z_index = this->IsOverlayOpenLocked(*applet) ? Overlay : Background;
+        z_index = Overlay;
     } else if (inherited_foreground) {
         z_index = is_obscured ? Foreground : ForegroundVisible;
     }

src/core/hle/service/audio/audio.cpp

@@ -191,7 +191,7 @@ void LoopProcess(Core::System& system) {
     server_manager->RegisterNamedService("audout:d", std::make_shared<IAudioOutManagerForDebugger>(system), 30);
     server_manager->RegisterNamedService("audin:d", std::make_shared<IAudioInManagerForDebugger>(system), 30);
     server_manager->RegisterNamedService("audrec:d", std::make_shared<IFinalOutputRecorderManagerForDebugger>(system), 30);
-    server_manager->RegisterNamedService("audren:d", std::make_shared<IAudioRendererManagerForDebugger>(system), 30);
+    server_manager->RegisterNamedService("audren:d", std::make_shared<IAudioInManager>(system), 30);
 
     server_manager->RegisterNamedService("audin:u", std::make_shared<IAudioInManager>(system), 30);
     server_manager->RegisterNamedService("audin:a", std::make_shared<IAudioInManagerForApplet>(system), 30);

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

@@ -154,9 +154,6 @@ FSP_SRV::FSP_SRV(Core::System& system_)
         {720, nullptr, "AbandonAccessFailure"},
         {800, nullptr, "GetAndClearFileSystemProxyErrorInfo"},
         {810, nullptr, "RegisterProgramIndexMapInfo"},
-        {820, nullptr, "GetContentStorageInfoIndex"},
-        {830, nullptr, "EncryptStreamPlaySaveData"},
-        {831, nullptr, "DecryptStreamPlaySaveData"},
         {1000, nullptr, "SetBisRootForHost"},
         {1001, nullptr, "SetSaveDataSize"},
         {1002, nullptr, "SetSaveDataRootPath"},

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

@@ -121,7 +121,7 @@ IHidSystemServer::IHidSystemServer(Core::System& system_, std::shared_ptr<Resour
         {547, nullptr, "GetAllowedBluetoothLinksCount"},
         {548, &IHidSystemServer::GetRegisteredDevices, "GetRegisteredDevices"},
         {549, nullptr, "GetConnectableRegisteredDevices"},
-        {551, &IHidSystemServer::GetRegisteredDevices, "GetRegisteredDevicesForControllerSupport"}, //20.0.0+ //mocked via 548 for Diablo 3 (at least)
+        {551, nullptr, "GetRegisteredDevicesForControllerSupport"}, //20.0.0+
         {700, nullptr, "ActivateUniquePad"},
         {702, &IHidSystemServer::AcquireUniquePadConnectionEventHandle, "AcquireUniquePadConnectionEventHandle"},
         {703, &IHidSystemServer::GetUniquePadIds, "GetUniquePadIds"},
@@ -758,7 +758,7 @@ void IHidSystemServer::AcquireDeviceRegisteredEventForControllerSupport(HLEReque
 }
 
 void IHidSystemServer::GetRegisteredDevices(HLERequestContext& ctx) {
-    LOG_WARNING(Service_HID, "(STUBBED) called, command={}", ctx.GetCommand()); //548 or 551
+    LOG_WARNING(Service_HID, "(STUBBED) called");
 
     struct RegisterData {
         std::array<u8, 0x68> data;

src/core/hle/service/ipc_helpers.h

@@ -22,7 +22,6 @@
 
 namespace IPC {
 
-constexpr Result ResultNotSupported{ErrorModule::HIPC, 1};
 constexpr Result ResultSessionClosed{ErrorModule::HIPC, 301};
 
 struct ResponseBuilder {

src/core/hle/service/jit/jit_context.cpp

@@ -71,14 +71,17 @@ public:
     void InstructionSynchronizationBarrierRaised() override {
         last_code_addr = u64(-1); //reset back, force refetch
     }
-    u64 MemoryRead(u64 vaddr, size_t size) override {
+    u8 MemoryRead8(u64 vaddr) override {
-        switch (size) {
+        return ReadMemory<u8>(vaddr);
-        case sizeof(u64): return ReadMemory<u64>(vaddr);
+    }
-        case sizeof(u32): return ReadMemory<u32>(vaddr);
+    u16 MemoryRead16(u64 vaddr) override {
-        case sizeof(u16): return ReadMemory<u16>(vaddr);
+        return ReadMemory<u16>(vaddr);
-        case sizeof(u8): return ReadMemory<u8>(vaddr);
+    }
-        default: UNREACHABLE();
+    u32 MemoryRead32(u64 vaddr) override {
-        }
+        return ReadMemory<u32>(vaddr);
+    }
+    u64 MemoryRead64(u64 vaddr) override {
+        return ReadMemory<u64>(vaddr);
     }
     u128 MemoryRead128(u64 vaddr) override {
         return ReadMemory<u128>(vaddr);
@@ -86,19 +89,22 @@ public:
     std::string MemoryReadCString(u64 vaddr) {
         std::string result{};
         u8 next;
-        while ((next = u8(MemoryRead(vaddr++, sizeof(u8)))) != 0)
+        while ((next = MemoryRead8(vaddr++)) != 0)
             result += char(next);
         return result;
     }
 
-    void MemoryWrite(u64 vaddr, u64 value, size_t size) override {
+    void MemoryWrite8(u64 vaddr, u8 value) override {
-        switch (size) {
+        WriteMemory<u8>(vaddr, value);
-        case sizeof(u64): WriteMemory<u64>(vaddr, u64(value)); break;
+    }
-        case sizeof(u32): WriteMemory<u32>(vaddr, u32(value)); break;
+    void MemoryWrite16(u64 vaddr, u16 value) override {
-        case sizeof(u16): WriteMemory<u16>(vaddr, u16(value)); break;
+        WriteMemory<u16>(vaddr, value);
-        case sizeof(u8): WriteMemory<u8>(vaddr, u8(value)); break;
+    }
-        default: UNREACHABLE();
+    void MemoryWrite32(u64 vaddr, u32 value) override {
-        }
+        WriteMemory<u32>(vaddr, value);
+    }
+    void MemoryWrite64(u64 vaddr, u64 value) override {
+        WriteMemory<u64>(vaddr, value);
     }
     void MemoryWrite128(u64 vaddr, u128 value) override {
         WriteMemory<u128>(vaddr, value);
@@ -187,14 +193,14 @@ public:
         // The loaded NRO file has ELF relocations that must be processed before it can run.
         // Normally this would be processed by RTLD, but in HLE context, we don't have
         // the linker available, so we have to do it ourselves.
-        const VAddr mod_offset{callbacks->MemoryRead(4, sizeof(u32))};
+        const VAddr mod_offset{callbacks->MemoryRead32(4)};
-        if (callbacks->MemoryRead(mod_offset, sizeof(u32)) != Common::MakeMagic('M', 'O', 'D', '0'))
+        if (callbacks->MemoryRead32(mod_offset) != Common::MakeMagic('M', 'O', 'D', '0'))
             return false;
 
         // For more info about dynamic entries, see the ELF ABI specification:
         // https://refspecs.linuxbase.org/elf/gabi4+/ch5.dynamic.html
         // https://refspecs.linuxbase.org/elf/gabi4+/ch4.reloc.html
-        VAddr dynamic_offset{mod_offset + callbacks->MemoryRead(mod_offset + 4, sizeof(u32))};
+        VAddr dynamic_offset{mod_offset + callbacks->MemoryRead32(mod_offset + 4)};
         VAddr rela_dyn = 0, relr_dyn = 0;
         size_t num_rela = 0, num_relr = 0;
         while (true) {
@@ -216,8 +222,8 @@ public:
         for (size_t i = 0; i < num_rela; i++) {
             const auto rela{callbacks->ReadMemory<Elf64_Rela>(rela_dyn + i * sizeof(Elf64_Rela))};
             if (Elf64RelType(rela.r_info) == ElfAArch64Relative) {
-                const VAddr contents{callbacks->MemoryRead(rela.r_offset, sizeof(u64))};
+                const VAddr contents{callbacks->MemoryRead64(rela.r_offset)};
-                callbacks->MemoryWrite(rela.r_offset, contents + rela.r_addend, sizeof(u64));
+                callbacks->MemoryWrite64(rela.r_offset, contents + rela.r_addend);
             }
         }
 
@@ -225,7 +231,7 @@ public:
         for (size_t i = 0; i < num_relr; i++) {
             const auto relr = callbacks->ReadMemory<Elf64_Relr>(relr_dyn + i * sizeof(Elf64_Relr));
             const auto incr = [&](VAddr where) {
-                callbacks->MemoryWrite(where, callbacks->MemoryRead(where, sizeof(u64)) + relocbase, sizeof(u64));
+                callbacks->MemoryWrite64(where, callbacks->MemoryRead64(where) + relocbase);
             };
             if ((relr & 1) == 0) {
                 // where pointer
@@ -288,7 +294,7 @@ public:
         if (argument_stack.size() > 8) {
             const VAddr new_sp = Common::AlignDown(top_of_stack - (argument_stack.size() - 8) * sizeof(u64), STACK_ALIGN);
             for (size_t i = 8; i < argument_stack.size(); i++)
-                callbacks->MemoryWrite(new_sp + (i - 8) * sizeof(u64), argument_stack[i], sizeof(u64));
+                callbacks->MemoryWrite64(new_sp + (i - 8) * sizeof(u64), argument_stack[i]);
             jit->SetSP(new_sp);
         }
         // Reset the call state for the next invocation
@@ -379,17 +385,17 @@ void DynarmicCallbacks64::CallSVC(u32 swi) {
 
         if (dest < src) {
             for (size_t i = 0; i < n; i++)
-                MemoryWrite(dest + i, u8(MemoryRead(src + i, sizeof(u8))), sizeof(u8));
+                MemoryWrite8(dest + i, MemoryRead8(src + i));
         } else {
             for (size_t i = n; i > 0; i--)
-                MemoryWrite(dest + i - 1, u8(MemoryRead(src + i - 1, sizeof(u8))), sizeof(u8));
+                MemoryWrite8(dest + i - 1, MemoryRead8(src + i - 1));
         }
     } else if (pc == parent.helpers[size_t(HelperFn::Memset)]) {
         const VAddr dest{parent.jit->GetRegister(0)};
         const u64 c{parent.jit->GetRegister(1)};
         const size_t n{parent.jit->GetRegister(2)};
         for (size_t i = 0; i < n; i++)
-            MemoryWrite(dest + i, u8(c), sizeof(u8));
+            MemoryWrite8(dest + i, u8(c));
     } else if (pc == parent.helpers[size_t(HelperFn::Resolve)]) {
         // X0 contains a char* for a symbol to resolve
         const auto name{MemoryReadCString(parent.jit->GetRegister(0))};
@@ -416,7 +422,7 @@ void DynarmicCallbacks64::CallSVC(u32 swi) {
 }
 
 void DynarmicCallbacks64::ExceptionRaised(u64 pc, Dynarmic::A64::Exception exception) {
-    auto const inst = MemoryRead(pc, sizeof(u32));
+    auto const inst = MemoryRead32(pc);
     LOG_CRITICAL(Service_JIT, "{} PC @ {:08x}, data = {:08x}", exception, pc, inst);
     parent.jit->HaltExecution();
 }

src/core/hle/service/ngc/ngc.cpp

@@ -6,16 +6,10 @@
 
 #include "common/string_util.h"
 #include "core/core.h"
-#include "core/hle/kernel/k_client_session.h"
-#include "core/hle/result.h"
-#include "core/hle/service/acc/profile_manager.h"
-#include "core/hle/service/cmif_types.h"
-#include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/ngc/ngc.h"
 #include "core/hle/service/server_manager.h"
 #include "core/hle/service/service.h"
-#include "frontend_common/firmware_manager.h"
 
 namespace Service::NGC {
 
@@ -172,123 +166,12 @@ public:
     }
 };
 
-struct SaveDataHandle {
-    u64 unk0;
-};
-static_assert(sizeof(SaveDataHandle) == 0x08);
-
-class IUserShimScopedObject final : public ServiceFramework<IUserShimScopedObject> {
-public:
-    explicit IUserShimScopedObject(Core::System& system_) : ServiceFramework(system_, "IUserShimScopedObject") {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {450, nullptr, "InitializeForSaveData"},
-            {451, nullptr, "FinalizeForSaveData"},
-            {452, D<&IUserShimScopedObject::OpenSaveData>, "OpenSaveData"},
-            {453, nullptr, "CloseSaveData"},
-            {454, D<&IUserShimScopedObject::ReadSaveSlot>, "ReadSaveSlot"},
-            {455, D<&IUserShimScopedObject::WriteSaveSlot>, "WriteSaveSlot"},
-            {456, nullptr, "FlushSaveSlot"},
-            {457, nullptr, "CommitSaveData"},
-        };
-        // clang-format on
-        RegisterHandlers(functions);
-    }
-
-    Result OpenSaveData(Account::Uid unk0, Out<SaveDataHandle> unk1) {
-        LOG_WARNING(Service_NGC, "stubbed");
-        R_THROW(IPC::ResultNotSupported);
-    }
-
-    Result ReadSaveSlot(s32 offset, SaveDataHandle handle, OutBuffer<BufferAttr_HipcAutoSelect> out_data, Out<u32> out_size) {
-        LOG_WARNING(Service_NGC, "stubbed");
-        R_THROW(IPC::ResultNotSupported);
-    }
-
-    Result WriteSaveSlot(s32 offset, SaveDataHandle handle, InBuffer<BufferAttr_HipcAutoSelect> out_data) {
-        LOG_WARNING(Service_NGC, "stubbed");
-        // to implement
-        R_SUCCEED();
-    }
-};
-
-class IUserService final : public ServiceFramework<IUserService> {
-public:
-    explicit IUserService(Core::System& system_) : ServiceFramework(system_, "stpl:u") {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0 , D<&IUserService::Cmd0>, "Cmd0"},
-        };
-        // clang-format on
-        RegisterHandlers(functions);
-    }
-    Result Cmd0(u32 unk0, OutInterface<IUserShimScopedObject> out_interface) {
-        LOG_WARNING(Service_NGC, "stubbed");
-        *out_interface = std::make_shared<IUserShimScopedObject>(system);
-        R_SUCCEED();
-    }
-};
-
-class ISystemShimScopedObject final : public ServiceFramework<ISystemShimScopedObject> {
-public:
-    explicit ISystemShimScopedObject(Core::System& system_) : ServiceFramework(system_, "ISystemShimScopedObject") {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {106, nullptr, "Cmd106"},
-            {107, nullptr, "Cmd107"},
-            {108, D<&ISystemShimScopedObject::Cmd108>, "Cmd108"},
-            {207, nullptr, "Cmd207"},
-            {208, D<&ISystemShimScopedObject::Cmd208>, "Cmd208"},
-            {209, nullptr, "Cmd209"},
-            {210, nullptr, "Cmd210"},
-            {211, nullptr, "Cmd211"},
-            {212, nullptr, "Cmd212"},
-        };
-        // clang-format on
-        RegisterHandlers(functions);
-    }
-
-    Result Cmd108() {
-        LOG_WARNING(Service_NGC, "stubbed");
-        R_THROW(IPC::ResultNotSupported);
-    }
-
-    Result Cmd208(Out<std::array<u8, 0x20>> unk0) {
-        LOG_WARNING(Service_NGC, "stubbed");
-        R_THROW(IPC::ResultNotSupported);
-    }
-};
-
-class ISystemService final : public ServiceFramework<ISystemService> {
-public:
-    explicit ISystemService(Core::System& system_) : ServiceFramework(system_, "stpl:sys") {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0 , D<&ISystemService::Cmd0>, "Cmd0"},
-        };
-        // clang-format on
-        RegisterHandlers(functions);
-    }
-    Result Cmd0(OutInterface<ISystemShimScopedObject> out_interface) {
-        LOG_WARNING(Service_NGC, "stubbed");
-        *out_interface = std::make_shared<ISystemShimScopedObject>(system);
-        R_SUCCEED();
-    }
-};
-
 void LoopProcess(Core::System& system) {
     auto server_manager = std::make_unique<ServerManager>(system);
 
     server_manager->RegisterNamedService("ngct:u", std::make_shared<IService>(system), 4);
     server_manager->RegisterNamedService("ngct:s", std::make_shared<IServiceWithManagementApi>(system), 4);
     server_manager->RegisterNamedService("ngc:u", std::make_shared<NgcServiceImpl>(system), 4);
-
-    // +23.0.0
-    if (FirmwareManager::GetFirmwareVersion(system).first.major >= 23) {
-        server_manager->RegisterNamedService("stpl:u", std::make_shared<IUserService>(system), 4);
-        server_manager->RegisterNamedService("stpl:sys", std::make_shared<ISystemService>(system), 4);
-    }
-
     ServerManager::RunServer(std::move(server_manager));
 }
 

src/core/hle/service/ns/application_manager_interface.cpp

@@ -228,9 +228,9 @@ IApplicationManagerInterface::IApplicationManagerInterface(Core::System& system_
         {930, nullptr, "Unknown930"}, //20.0.0+
         {931, nullptr, "Unknown931"}, //20.0.0+
         {933, nullptr, "Unknown933"}, //20.0.0+
-        {934, nullptr, "Unknown934"}, //21.0.0+
+        {934, nullptr, "Unknown934"}, //20.0.0+
-        {935, nullptr, "Unknown935"}, //21.0.0+
+        {935, nullptr, "Unknown935"}, //20.0.0+
-        {936, D<&IApplicationManagerInterface::Unknown936>, "Unknown936"}, //21.0.0+
+        {936, nullptr, "Unknown936"}, //20.0.0+
         {1000, nullptr, "RequestVerifyApplicationDeprecated"},
         {1001, nullptr, "CorruptApplicationForDebug"},
         {1002, nullptr, "RequestVerifyAddOnContentsRights"},
@@ -422,7 +422,7 @@ IApplicationManagerInterface::IApplicationManagerInterface(Core::System& system_
         {4039, nullptr, "Unknown4039"}, //20.0.0+
         {4040, nullptr, "Unknown4040"}, //20.0.0+
         {4041, nullptr, "Unknown4041"}, //20.0.0+
-        {4042, D<&IApplicationManagerInterface::Unknown4042>, "Unknown4042"}, //20.0.0+
+        {4042, nullptr, "Unknown4042"}, //20.0.0+
         {4043, nullptr, "Unknown4043"}, //20.0.0+
         {4044, nullptr, "Unknown4044"}, //20.0.0+
         {4045, nullptr, "Unknown4045"}, //20.0.0+
@@ -639,12 +639,6 @@ Result IApplicationManagerInterface::IsGameCardApplicationRunning(Out<bool> out_
     R_SUCCEED();
 }
 
-Result IApplicationManagerInterface::Unknown936(Out<u64> out_result) {
-    LOG_WARNING(Service_NS, "(STUBBED) called.");
-    *out_result = 0;
-    R_SUCCEED();
-}
-
 Result IApplicationManagerInterface::IsAnyApplicationEntityInstalled(
     Out<bool> out_is_any_application_entity_installed) {
     LOG_WARNING(Service_NS, "(STUBBED) called");
@@ -868,15 +862,6 @@ Result IApplicationManagerInterface::Unknown4023(Out<u64> out_result) {
     R_SUCCEED();
 }
 
-Result IApplicationManagerInterface::Unknown4042(OutInterface<IAsyncResult> out_interface,
-                                                 OutCopyHandle<Kernel::KReadableEvent> out_event,
-                                                 u64 arg1, u64 arg2) {
-    LOG_WARNING(Service_NS, "(STUBBED) called, arg1={:016X}, arg2={:016X}", arg1, arg2);
-    *out_event = unknown_event.GetHandle();
-    *out_interface = std::make_shared<IAsyncResult>(system, &unknown_event);
-    R_SUCCEED();
-}
-
 Result IApplicationManagerInterface::Unknown4053() {
     LOG_WARNING(Service_NS, "(STUBBED) called.");
     R_SUCCEED();

src/core/hle/service/ns/application_manager_interface.h

@@ -7,7 +7,6 @@
 #pragma once
 
 #include "core/hle/service/cmif_types.h"
-#include "core/hle/service/ns/async_result.h"
 #include "core/hle/service/ns/language.h"
 #include "core/hle/service/ns/ns_types.h"
 #include "core/hle/service/os/event.h"
@@ -35,7 +34,6 @@ public:
     Result GetGameCardMountFailureEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
     Result GetGameCardWakenReadyEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
     Result IsGameCardApplicationRunning(Out<bool> out_is_running);
-    Result Unknown936(Out<u64> out_result);
     Result IsAnyApplicationEntityInstalled(Out<bool> out_is_any_application_entity_installed);
     Result GetApplicationViewDeprecated(
         OutArray<ApplicationViewV19, BufferAttr_HipcMapAlias> out_application_views,
@@ -73,9 +71,6 @@ public:
                                   InBuffer<BufferAttr_HipcMapAlias> logo_path_buffer);
     Result Unknown4022(OutCopyHandle<Kernel::KReadableEvent> out_event);
     Result Unknown4023(Out<u64> out_result);
-    Result Unknown4042(OutInterface<IAsyncResult> out_interface,
-                       OutCopyHandle<Kernel::KReadableEvent> out_event,
-                       u64 arg1, u64 arg2);
     Result Unknown4053();
     Result Unknown4105();