From 6dc0da080e4b35b43e221c8e45da17372e578b35 Mon Sep 17 00:00:00 2001
From: PavelBARABANOV <pavelbarabanov94@gmail.com>
Date: Wed, 21 Oct 2026 23:02:30 +0300
Subject: [PATCH 01/13] [shader_recompiler, renderer_vulkan] draw sprites whose
 texture handle comes from a vertex attribute

---
 src/shader_recompiler/host_translate_info.h   |   2 +
 src/shader_recompiler/ir_opt/texture_pass.cpp |  47 ++++++-
 src/shader_recompiler/shader_info.h           |   4 +
 .../renderer_vulkan/vk_graphics_pipeline.cpp  |   6 +
 .../renderer_vulkan/vk_graphics_pipeline.h    |  12 ++
 .../renderer_vulkan/vk_pipeline_cache.cpp     |   1 +
 .../renderer_vulkan/vk_rasterizer.cpp         | 115 ++++++++++++++++--
 .../renderer_vulkan/vk_rasterizer.h           |  14 +++
 8 files changed, 189 insertions(+), 12 deletions(-)

diff --git a/src/shader_recompiler/host_translate_info.h b/src/shader_recompiler/host_translate_info.h
index 44df85ccb2..9c1838acaf 100644
--- a/src/shader_recompiler/host_translate_info.h
+++ b/src/shader_recompiler/host_translate_info.h
@@ -40,6 +40,8 @@ struct HostTranslateInfo {
     bool support_conditional_barrier{}; ///< True when the device supports barriers in conditional
                                         ///< control flow
     bool single_lane_geometry_subgroups{};
+    bool support_attribute_texture_handle{}; ///< True when the host binds texture handles that
+                                             ///< arrive as vertex attributes
 
     void ApplyDescriptorLimitPolicy() noexcept {
         if (min_ssbo_alignment == 0) {
diff --git a/src/shader_recompiler/ir_opt/texture_pass.cpp b/src/shader_recompiler/ir_opt/texture_pass.cpp
index fe34a67555..e18365121b 100644
--- a/src/shader_recompiler/ir_opt/texture_pass.cpp
+++ b/src/shader_recompiler/ir_opt/texture_pass.cpp
@@ -268,6 +268,10 @@ static inline u32 ReadCbufCached(Environment& env, u32 index, u32 offset) {
     return v;
 }
 
+static inline bool IsAttributeHandle(const ConstBufferAddr& cbuf) {
+    return cbuf.index == ATTRIBUTE_HANDLE_CBUF_INDEX;
+}
+
 static inline u32 GetTextureHandleCached(Environment& env, const ConstBufferAddr& cbuf) {
     // Must all be uniquely different variables
     // If has secondary, then it will be cbuf.secondary_{index|offset}, else its 0.
@@ -287,14 +291,23 @@ static inline u32 GetTextureHandleCached(Environment& env, const ConstBufferAddr
 
 // Cached variants of existing helpers
 static inline TextureType ReadTextureTypeCached(Environment& env, const ConstBufferAddr& cbuf) {
+    if (IsAttributeHandle(cbuf)) {
+        return TextureType::Color2D;
+    }
     return env.ReadTextureType(GetTextureHandleCached(env, cbuf));
 }
 static inline TexturePixelFormat ReadTexturePixelFormatCached(Environment& env,
                                                                 const ConstBufferAddr& cbuf) {
+    if (IsAttributeHandle(cbuf)) {
+        return TexturePixelFormat::A8B8G8R8_UNORM;
+    }
     return env.ReadTexturePixelFormat(GetTextureHandleCached(env, cbuf));
 }
 static inline bool IsTexturePixelFormatIntegerCached(Environment& env,
                                                         const ConstBufferAddr& cbuf) {
+    if (IsAttributeHandle(cbuf)) {
+        return false;
+    }
     return env.IsTexturePixelFormatInteger(GetTextureHandleCached(env, cbuf));
 }
 
@@ -466,15 +479,43 @@ std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst, Environme
     };
 }
 
+bool IsAttributeSourcedHandle(const IR::Value& handle) {
+    if (handle.IsImmediate()) {
+        return false;
+    }
+    const IR::Inst* inst{handle.InstRecursive()};
+    if (inst->GetOpcode() == IR::Opcode::BitCastU32F32 && !inst->Arg(0).IsImmediate()) {
+        inst = inst->Arg(0).InstRecursive();
+    }
+    return inst->GetOpcode() == IR::Opcode::GetAttribute ||
+           inst->GetOpcode() == IR::Opcode::GetAttributeU32;
+}
+
 TextureInst MakeInst(Environment& env, IR::Block* block, IR::Inst& inst, const HostTranslateInfo& host_info) {
     ConstBufferAddr addr;
     if (IsBindless(inst)) {
         const std::optional<ConstBufferAddr> track_addr{TrackCached(inst.Arg(0), env, host_info)};
 
-        if (!track_addr) {
-            throw NotImplementedException("Failed to track bindless texture constant buffer");
-        } else {
+        if (track_addr) {
             addr = *track_addr;
+        } else if (host_info.support_attribute_texture_handle &&
+                   IsAttributeSourcedHandle(inst.Arg(0))) {
+            // The handle travels with the vertices (sprite batches pick the texture per quad), so
+            // there is no constant buffer to read it from. The host binds the handle of each run
+            // of vertices that share one.
+            addr = ConstBufferAddr{
+                .index = ATTRIBUTE_HANDLE_CBUF_INDEX,
+                .offset = 0,
+                .shift_left = 0,
+                .secondary_index = 0,
+                .secondary_offset = 0,
+                .secondary_shift_left = 0,
+                .dynamic_offset = {},
+                .count = 1,
+                .has_secondary = false,
+            };
+        } else {
+            throw NotImplementedException("Failed to track bindless texture constant buffer");
         }
     } else {
         addr = ConstBufferAddr{
diff --git a/src/shader_recompiler/shader_info.h b/src/shader_recompiler/shader_info.h
index 71309e040e..d60be1238d 100644
--- a/src/shader_recompiler/shader_info.h
+++ b/src/shader_recompiler/shader_info.h
@@ -38,6 +38,10 @@ enum class TextureType : u32 {
 };
 constexpr u32 NUM_TEXTURE_TYPES = 9;
 
+/// Constant buffer index marking a texture handle that the shader receives as a vertex attribute
+/// instead of reading it from a constant buffer. The host supplies the handle of each draw run.
+constexpr u32 ATTRIBUTE_HANDLE_CBUF_INDEX = 0xFFFF;
+
 enum class TexturePixelFormat {
     A8B8G8R8_UNORM,
     A8B8G8R8_SNORM,
diff --git a/src/video_core/renderer_vulkan/vk_graphics_pipeline.cpp b/src/video_core/renderer_vulkan/vk_graphics_pipeline.cpp
index 8b5b0bc9c5..c9e4f939b1 100644
--- a/src/video_core/renderer_vulkan/vk_graphics_pipeline.cpp
+++ b/src/video_core/renderer_vulkan/vk_graphics_pipeline.cpp
@@ -276,6 +276,9 @@ GraphicsPipeline::GraphicsPipeline(
         num_textures += Shader::NumDescriptors(info->texture_descriptors);
         num_image_elements += Shader::NumDescriptors(info->texture_descriptors);
         num_image_elements += Shader::NumDescriptors(info->image_descriptors);
+        for (const auto& desc : info->texture_descriptors) {
+            uses_attribute_handle |= desc.cbuf_index == Shader::ATTRIBUTE_HANDLE_CBUF_INDEX;
+        }
         num_descriptor_entries += NumDescriptorEntries(*info);
     }
     fragment_has_color0_output = stage_infos[NUM_STAGES - 1].stores_frag_color[0];
@@ -375,6 +378,9 @@ bool GraphicsPipeline::ConfigureImpl(bool is_indexed) {
         }
         const auto& cbufs{maxwell3d->state.shader_stages[stage].const_buffers};
         const auto read_handle{[&](const auto& desc, u32 index) {
+            if (desc.cbuf_index == Shader::ATTRIBUTE_HANDLE_CBUF_INDEX) {
+                return TexturePair(attribute_handle, via_header_index);
+            }
             ASSERT(cbufs[desc.cbuf_index].enabled);
             const u32 index_offset{index << desc.size_shift};
             const u32 offset{desc.cbuf_offset + index_offset};
diff --git a/src/video_core/renderer_vulkan/vk_graphics_pipeline.h b/src/video_core/renderer_vulkan/vk_graphics_pipeline.h
index b1ac5a3fcc..a6edab8bc0 100644
--- a/src/video_core/renderer_vulkan/vk_graphics_pipeline.h
+++ b/src/video_core/renderer_vulkan/vk_graphics_pipeline.h
@@ -110,6 +110,16 @@ public:
         return configure_func(this, is_indexed);
     }
 
+    /// True when a shader samples a texture whose handle arrives as a vertex attribute.
+    [[nodiscard]] bool UsesAttributeHandle() const noexcept {
+        return uses_attribute_handle;
+    }
+
+    /// Handle bound to those textures by the next Configure.
+    void SetAttributeHandle(u32 handle) noexcept {
+        attribute_handle = handle;
+    }
+
     [[nodiscard]] GraphicsPipeline* Next(const GraphicsPipelineCacheKey& current_key) noexcept {
         if (key == current_key) {
             return this;
@@ -168,6 +178,8 @@ private:
     u32 num_descriptor_entries{};
     size_t num_image_elements{};
     u32 num_textures{};
+    u32 attribute_handle{};
+    bool uses_attribute_handle{};
     bool fragment_has_color0_output{};
 
     vk::DescriptorSetLayout descriptor_set_layout;
diff --git a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
index a85e2811a3..b4ca367b29 100644
--- a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
+++ b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
@@ -491,6 +491,7 @@ PipelineCache::PipelineCache(Tegra::MaxwellDeviceMemoryManager& device_memory_,
         .support_geometry_shader_passthrough = device.IsNvGeometryShaderPassthroughSupported(),
         .support_conditional_barrier = device.SupportsConditionalBarriers(),
         .single_lane_geometry_subgroups = !profile.SupportsSubgroupStage(Shader::Stage::Geometry),
+        .support_attribute_texture_handle = true,
     };
     host_info.ApplyDescriptorLimitPolicy();
 
diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
index f43bea1220..c4008486e4 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
@@ -248,6 +248,15 @@ void RasterizerVulkan::PrepareDraw(bool is_indexed, Func&& draw_func) {
     std::scoped_lock lock{buffer_cache.mutex, texture_cache.mutex};
     // update engine as channel may be different.
     pipeline->SetEngine(maxwell3d, gpu_memory);
+    attribute_handle_pipeline = nullptr;
+    attribute_handle_runs.clear();
+    if (split_attribute_handles && pipeline->UsesAttributeHandle()) {
+        CollectAttributeHandleRuns(is_indexed);
+        if (!attribute_handle_runs.empty()) {
+            attribute_handle_pipeline = pipeline;
+            pipeline->SetAttributeHandle(attribute_handle_runs.front().handle);
+        }
+    }
     if (!pipeline->Configure(is_indexed))
         return;
 
@@ -259,22 +268,110 @@ void RasterizerVulkan::PrepareDraw(bool is_indexed, Func&& draw_func) {
     draw_func();
 }
 
+void RasterizerVulkan::CollectAttributeHandleRuns(bool is_indexed) {
+    using VertexAttribute = Maxwell::VertexAttribute;
+    const auto& regs = maxwell3d->regs;
+    const auto& draw_state = maxwell3d->draw_manager.draw_state;
+    const u32 total = is_indexed ? draw_state.index_buffer.count : draw_state.vertex_buffer.count;
+    if (total == 0) {
+        return;
+    }
+    // The handle is an integer attribute; sprite batches repeat it on every vertex of a quad.
+    const VertexAttribute* source{};
+    for (const auto& attr : regs.vertex_attrib_format) {
+        if (attr.constant || attr.size == VertexAttribute::Size::Invalid) {
+            continue;
+        }
+        if (attr.type == VertexAttribute::Type::UInt || attr.type == VertexAttribute::Type::SInt) {
+            source = &attr;
+            break;
+        }
+    }
+    const auto& stream = regs.vertex_streams[source ? source->buffer.Value() : 0];
+    if (!source || !stream.IsEnabled()) {
+        attribute_handle_runs.push_back({0, total, 0});
+        return;
+    }
+    // Only plain triangle lists are split; anything else keeps the handle of its first vertex.
+    const u32 primitive_size =
+        draw_state.topology == Maxwell::PrimitiveTopology::Triangles ? 3 : total;
+    const GPUVAddr base_address = stream.Address() + source->offset;
+    const auto read_handle = [&](u32 position) {
+        u32 vertex;
+        if (is_indexed) {
+            const auto& index_buffer = draw_state.index_buffer;
+            const GPUVAddr address =
+                index_buffer.IndexStart() + size_t{position} * index_buffer.FormatSizeInBytes();
+            u32 index{};
+            gpu_memory->ReadBlockUnsafe(address, &index, index_buffer.FormatSizeInBytes());
+            vertex = static_cast<u32>(draw_state.base_index + index);
+        } else {
+            vertex = draw_state.vertex_buffer.first + position;
+        }
+        return gpu_memory->Read<u32>(base_address + static_cast<GPUVAddr>(vertex) * stream.stride);
+    };
+    for (u32 position = 0; position + primitive_size <= total; position += primitive_size) {
+        const u32 handle = read_handle(position);
+        if (!attribute_handle_runs.empty() && attribute_handle_runs.back().handle == handle) {
+            attribute_handle_runs.back().count += primitive_size;
+        } else {
+            attribute_handle_runs.push_back({position, primitive_size, handle});
+        }
+    }
+    if (attribute_handle_runs.empty()) {
+        attribute_handle_runs.push_back({0, total, read_handle(0)});
+    } else {
+        const u32 covered = attribute_handle_runs.back().first + attribute_handle_runs.back().count;
+        if (covered < total) {
+            attribute_handle_runs.back().count += total - covered;
+        }
+    }
+}
+
 void RasterizerVulkan::Draw(bool is_indexed, u32 instance_count) {
+    split_attribute_handles = true;
+    SCOPE_EXIT {
+        split_attribute_handles = false;
+    };
     PrepareDraw(is_indexed, [this, is_indexed, instance_count] {
         const auto& draw_state = maxwell3d->draw_manager.draw_state;
         const u32 num_instances{instance_count};
         const DrawParams draw_params{MakeDrawParams(draw_state, num_instances, is_indexed)};
 
-        scheduler.Record([draw_params](vk::CommandBuffer cmdbuf) {
-            if (draw_params.is_indexed) {
-                cmdbuf.DrawIndexed(draw_params.num_vertices, draw_params.num_instances,
-                                   draw_params.first_index, draw_params.base_vertex,
-                                   draw_params.base_instance);
-            } else {
-                cmdbuf.Draw(draw_params.num_vertices, draw_params.num_instances,
-                            draw_params.base_vertex, draw_params.base_instance);
+        const auto record_draw = [this](const DrawParams& params) {
+            scheduler.Record([params](vk::CommandBuffer cmdbuf) {
+                if (params.is_indexed) {
+                    cmdbuf.DrawIndexed(params.num_vertices, params.num_instances,
+                                       params.first_index, params.base_vertex,
+                                       params.base_instance);
+                } else {
+                    cmdbuf.Draw(params.num_vertices, params.num_instances, params.base_vertex,
+                                params.base_instance);
+                }
+            });
+        };
+        if (attribute_handle_pipeline && attribute_handle_runs.size() > 1) {
+            // The first run is already configured, each further one binds its own texture.
+            for (size_t i = 0; i < attribute_handle_runs.size(); ++i) {
+                const AttributeHandleRun& run = attribute_handle_runs[i];
+                if (i != 0) {
+                    attribute_handle_pipeline->SetAttributeHandle(run.handle);
+                    if (!attribute_handle_pipeline->Configure(is_indexed)) {
+                        continue;
+                    }
+                }
+                DrawParams run_params = draw_params;
+                run_params.num_vertices = run.count;
+                if (is_indexed) {
+                    run_params.first_index += run.first;
+                } else {
+                    run_params.base_vertex += run.first;
+                }
+                record_draw(run_params);
             }
-        });
+        } else {
+            record_draw(draw_params);
+        }
 
         // Log draw call
         if (GPU::Logging::IsActive() &&
diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.h b/src/video_core/renderer_vulkan/vk_rasterizer.h
index 7470aa4f14..fcef3b9149 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.h
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.h
@@ -157,6 +157,20 @@ private:
     template <typename Func>
     void PrepareDraw(bool is_indexed, Func&&);
 
+    /// A stretch of a draw whose vertices all carry the same texture handle.
+    struct AttributeHandleRun {
+        u32 first;
+        u32 count;
+        u32 handle;
+    };
+
+    /// Splits the current draw wherever the texture handle carried in the vertex data changes.
+    void CollectAttributeHandleRuns(bool is_indexed);
+
+    std::vector<AttributeHandleRun> attribute_handle_runs;
+    GraphicsPipeline* attribute_handle_pipeline{};
+    bool split_attribute_handles{};
+
     void FlushWork();
 
     void UpdateDynamicStates();

From eb88a40a8eb0fe847281ea6913fcc7ff7daedcd2 Mon Sep 17 00:00:00 2001
From: PavelBARABANOV <pavelbarabanov94@gmail.com>
Date: Sun, 25 Oct 2026 16:06:46 +0100
Subject: [PATCH 02/13] [qt] fix graphics API toggle getting stuck on
 OpenGL_GLSL (#4577)

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md).
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4577
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
---
 src/yuzu/main_window.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/yuzu/main_window.cpp b/src/yuzu/main_window.cpp
index 60bfbae5cd..6e21265f9e 100644
--- a/src/yuzu/main_window.cpp
+++ b/src/yuzu/main_window.cpp
@@ -3661,12 +3661,12 @@ void MainWindow::OnToggleGraphicsAPI() {
         api = Settings::RendererBackend::OpenGL_GLSL;
         break;
     case Settings::RendererBackend::OpenGL_GLSL:
-        api = Settings::RendererBackend::OpenGL_GLSL;
-        break;
-    case Settings::RendererBackend::OpenGL_SPIRV:
         api = Settings::RendererBackend::OpenGL_GLASM;
         break;
     case Settings::RendererBackend::OpenGL_GLASM:
+        api = Settings::RendererBackend::OpenGL_SPIRV;
+        break;
+    case Settings::RendererBackend::OpenGL_SPIRV:
         api = Settings::RendererBackend::Null;
         break;
 #else

From 05f36d990ce5301b310871451201a72e4c52b4df Mon Sep 17 00:00:00 2001
From: PavelBARABANOV <pavelbarabanov94@gmail.com>
Date: Mon, 26 Oct 2026 16:23:23 +0100
Subject: [PATCH 03/13] [chore] re-add out/ to .gitignore (#4578)

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md).
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4578
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
---
 .gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.gitignore b/.gitignore
index 20ed5e93c1..873b99bec2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@
 # Build directory
 /[Bb]uild*/
 doc-build/
+out/
 AppDir/
 uruntime
 

From 58968bd1274d8ebb1f159ad31500dde8d74abea6 Mon Sep 17 00:00:00 2001
From: PavelBARABANOV <pavelbarabanov94@gmail.com>
Date: Mon, 26 Oct 2026 17:23:18 +0100
Subject: [PATCH 04/13] [core] Support block-compressed NSZ and XCZ (#4552)

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md).
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------
- Add NCZBLOCK (nsz -B / .xcz) reader: each read decodes only the covered blocks and re-encrypts CTR sections, no disk output.
- Allow installing solid .nsz to NAND via DecompressNCZForInstall (lazy, incremental decode with frontier, O(n) instead of O(n^2)).
- Accept BKTR updates with thousands of sections (MaxSectionCount = 0x10000).
- Wire .nsz/.xcz into loader, registered cache, scanner, and NAND install (content_manager.h), and reject solid NCZ from the game list.
- Bump the pinned zstd to 33618c8 in cpmfile.json, which includes the upstream AArch64 revert ([33618c89](https://github.com/facebook/zstd/commit/33618c89e511637f8a6ef955b3501766d71feb53)) for a ZSTD_decodeSequence branch optimization that could corrupt data on ARM64; without it, solid NCZ decoding on Android fails with "Data corruption detected".

NCZ format and CTR counter semantics follow the reference nsz tool and its
Rust port:
- https://github.com/nicoboss/nsz (Decompressor.py, BlockDecompressorReader.py)
- https://docs.rs/nsz-rs/0.3.0/src/nsz_rs/decompress.rs.html

The last-block edge case (decompressed size is an exact multiple of block
size) is handled as described in https://github.com/nicoboss/nsz/issues/210

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4552
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
---
 cpmfile.json                                  |   4 +-
 .../main/java/org/yuzu/yuzu_emu/model/Game.kt |   2 +-
 .../org/yuzu/yuzu_emu/utils/GameHelper.kt     |   2 +-
 .../app/src/main/jni/game_metadata.cpp        |   4 +-
 src/common/zstd_compression.cpp               |   9 +
 src/common/zstd_compression.h                 |  14 +
 src/core/CMakeLists.txt                       |   2 +
 src/core/crypto/ncz_decompressor.cpp          | 430 ++++++++++++++++++
 src/core/crypto/ncz_decompressor.h            |  35 ++
 src/core/file_sys/registered_cache.cpp        |  46 +-
 src/core/file_sys/submission_package.cpp      |  12 +
 src/core/loader/loader.cpp                    |  48 +-
 src/core/loader/loader.h                      |   2 +
 src/core/loader/nsp.cpp                       |  11 +
 src/frontend_common/content_manager.h         |   6 +-
 src/qt_common/game_list/worker.cpp            |  10 +-
 src/qt_common/qt_common.cpp                   |   3 +-
 src/yuzu/main_window.cpp                      |  11 +-
 18 files changed, 624 insertions(+), 27 deletions(-)
 create mode 100644 src/core/crypto/ncz_decompressor.cpp
 create mode 100644 src/core/crypto/ncz_decompressor.h

diff --git a/cpmfile.json b/cpmfile.json
index 9cac812b7a..0032734712 100644
--- a/cpmfile.json
+++ b/cpmfile.json
@@ -351,13 +351,13 @@
     },
     "zstd": {
         "find_args": "MODULE",
-        "hash": "cc5ad4b119a9c2ea57f0b71eeff01113bb506e0d17000159c5409cb8236d22e38c52d5e9e97e7947a4bf1b2dfc44b6c503ab2d9aedbd59458435c6a2849cb029",
+        "hash": "2b006c3c110c38bd2f5896b42d36a38931c8eae261f30552f9a9fd04458d218d8f1a1425f117fd12af545ed77042e4b2d1a1a9b6286c4d0b9d74ef79f20a8f08",
         "min_version": "1.5",
         "options": [
             "ZSTD_BUILD_SHARED OFF"
         ],
         "repo": "facebook/zstd",
         "source_subdir": "build/cmake",
-        "version": "b8d6101fba"
+        "version": "33618c8"
     }
 }
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/model/Game.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/model/Game.kt
index 6717894c93..f5f0cda0e9 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/model/Game.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/model/Game.kt
@@ -100,7 +100,7 @@ class Game(
 
     companion object {
         val extensions: Set<String> = HashSet(
-            listOf("xci", "nsp", "nca", "nro")
+            listOf("xci", "nsp", "nca", "nro", "nsz", "xcz")
         )
     }
 }
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/GameHelper.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/GameHelper.kt
index 411b764e36..bb2337a310 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/GameHelper.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/GameHelper.kt
@@ -109,7 +109,7 @@ object GameHelper {
 
     // File extensions considered as external content, buuut should
     // be done better imo.
-    private val externalContentExtensions = setOf("nsp", "xci")
+    private val externalContentExtensions = setOf("nsp", "xci", "nsz", "xcz")
 
     private fun scanContentContainersRecursive(
         files: Array<MinimalDocumentFile>,
diff --git a/src/android/app/src/main/jni/game_metadata.cpp b/src/android/app/src/main/jni/game_metadata.cpp
index 49d92bca75..9b6cd44e9f 100644
--- a/src/android/app/src/main/jni/game_metadata.cpp
+++ b/src/android/app/src/main/jni/game_metadata.cpp
@@ -76,7 +76,9 @@ jboolean Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getIsValid(JNIEnv* env, jobj
             auto const file_type = loader->GetFileType();
             if (file_type == Loader::FileType::Unknown || file_type == Loader::FileType::Error)
                 return false;
-            if ((file_type == Loader::FileType::NSP || file_type == Loader::FileType::XCI) && !Loader::IsBootableGameContainer(file, file_type))
+            if ((file_type == Loader::FileType::NSP || file_type == Loader::FileType::XCI ||
+                 file_type == Loader::FileType::NSZ || file_type == Loader::FileType::XCZ) &&
+                !Loader::IsBootableGameContainer(file, file_type))
                 return false;
             u64 program_id = 0;
             return loader->ReadProgramId(program_id) == Loader::ResultStatus::Success;
diff --git a/src/common/zstd_compression.cpp b/src/common/zstd_compression.cpp
index cb6ec171b5..7665482ee6 100644
--- a/src/common/zstd_compression.cpp
+++ b/src/common/zstd_compression.cpp
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -46,4 +49,10 @@ std::vector<u8> DecompressDataZSTD(std::span<const u8> compressed) {
     return decompressed;
 }
 
+std::size_t DecompressDataZSTD(std::span<const u8> compressed, std::span<u8> output) {
+    const std::size_t result =
+        ZSTD_decompress(output.data(), output.size(), compressed.data(), compressed.size());
+    return ZSTD_isError(result) ? 0 : result;
+}
+
 } // namespace Common::Compression
diff --git a/src/common/zstd_compression.h b/src/common/zstd_compression.h
index a5ab2d05bd..819d7d201a 100644
--- a/src/common/zstd_compression.h
+++ b/src/common/zstd_compression.h
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -42,4 +45,15 @@ namespace Common::Compression {
  */
 [[nodiscard]] std::vector<u8> DecompressDataZSTD(std::span<const u8> compressed);
 
+/**
+ * Decompresses a single Zstandard frame into a caller-provided buffer of known size.
+ *
+ * @param compressed the compressed source memory region.
+ * @param output     the destination buffer. Its size is the maximum number of bytes to write.
+ *
+ * @return the number of bytes written, or 0 if the frame is invalid or doesn't fit. An empty
+ *         frame also returns 0.
+ */
+[[nodiscard]] std::size_t DecompressDataZSTD(std::span<const u8> compressed, std::span<u8> output);
+
 } // namespace Common::Compression
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 31f9931d3a..1b578f67ba 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -33,6 +33,8 @@ add_library(core STATIC
     crypto/encryption_layer.h
     crypto/key_manager.cpp
     crypto/key_manager.h
+    crypto/ncz_decompressor.cpp
+    crypto/ncz_decompressor.h
     crypto/partition_data_manager.cpp
     crypto/partition_data_manager.h
     crypto/xts_encryption_layer.cpp
diff --git a/src/core/crypto/ncz_decompressor.cpp b/src/core/crypto/ncz_decompressor.cpp
new file mode 100644
index 0000000000..5f56e55375
--- /dev/null
+++ b/src/core/crypto/ncz_decompressor.cpp
@@ -0,0 +1,430 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include <algorithm>
+#include <array>
+#include <cstring>
+#include <memory>
+#include <mutex>
+#include <optional>
+#include <span>
+#include <string>
+#include <vector>
+
+#include <zstd.h>
+
+#include "common/common_types.h"
+#include "common/logging.h"
+#include "common/zstd_compression.h"
+#include "core/crypto/aes_util.h"
+#include "core/crypto/key_manager.h"
+#include "core/crypto/ncz_decompressor.h"
+#include "core/file_sys/vfs/vfs.h"
+
+namespace Core::Crypto {
+
+namespace {
+
+constexpr u64 HeaderSize = 0x4000;
+constexpr std::size_t SectionWire = 0x40;
+constexpr std::size_t BlockFixed = 0x18;
+constexpr std::size_t Chunk = 0x100000;
+// Upper bound on NCZ section entries (64 bytes each, so the table is at most 4 MiB). A base NCA
+// has a handful of sections, but nsz stores an update's patch (BKTR) data one entry per
+// subsection, which is thousands of them.
+constexpr u64 MaxSectionCount = 0x10000;
+constexpr std::array<u8, 8> SectionsMagic{'N', 'C', 'Z', 'S', 'E', 'C', 'T', 'N'};
+constexpr std::array<u8, 8> BlockMagic{'N', 'C', 'Z', 'B', 'L', 'O', 'C', 'K'};
+
+struct Section {
+    s64 offset, size;
+    u64 crypto_type;
+    Key128 key, counter;
+    bool Ctr() const { return crypto_type == 3 || crypto_type == 4; }
+};
+
+struct BlockHeader {
+    u32 exponent;
+    u64 decompressed_size;
+    std::vector<u32> sizes;
+};
+
+u64 Le(const u8* p, std::size_t n) {
+    u64 v = 0;
+    for (std::size_t i = n; i-- > 0;) v = (v << 8) | p[i];
+    return v;
+}
+
+// Mirrors nsz AESCTR.seek(): upper 8 bytes = stored counter, lower 8 = absolute NCA offset / 16.
+void SetIv(Key128& iv, const Key128& base, u64 off) {
+    iv = base;
+    u64 blk = off >> 4;
+    for (std::size_t i = 0; i < 8; ++i) { iv[15 - i] = static_cast<u8>(blk & 0xFF); blk >>= 8; }
+}
+
+// Parse header + section table + optional block header. Returns payload_start.
+std::optional<std::pair<std::vector<Section>, std::optional<BlockHeader>>> ParseHeader(
+    const FileSys::VirtualFile& f, u64& payload_start) {
+    const u64 fsize = f->GetSize();
+    if (fsize < HeaderSize + 16) return std::nullopt;
+
+    const auto head = f->ReadBytes(16, HeaderSize);
+    if (head.size() != 16 || !std::equal(head.begin(), head.begin() + 8, SectionsMagic.begin()))
+        return std::nullopt;
+    const u64 count = Le(head.data() + 8, 8);
+    if (count == 0 || count > MaxSectionCount || count * SectionWire > fsize - HeaderSize - 16)
+        return std::nullopt;
+
+    const auto table = f->ReadBytes(count * SectionWire, HeaderSize + 16);
+    if (table.size() != count * SectionWire) return std::nullopt;
+
+    std::vector<Section> sections;
+    sections.reserve(count + 1);
+    for (u64 i = 0; i < count; ++i) {
+        const u8* e = table.data() + i * SectionWire;
+        Section s{};
+        s.offset = static_cast<s64>(Le(e, 8));
+        s.size = static_cast<s64>(Le(e + 8, 8));
+        s.crypto_type = Le(e + 16, 8);
+        std::memcpy(s.key.data(), e + 32, 16);
+        std::memcpy(s.counter.data(), e + 48, 16);
+        sections.push_back(s);
+    }
+
+    const u64 block_start = HeaderSize + 16 + count * SectionWire;
+    const auto fixed = f->ReadBytes(BlockFixed, block_start);
+    std::optional<BlockHeader> bh;
+    if (fixed.size() == BlockFixed &&
+        std::equal(fixed.begin(), fixed.begin() + 8, BlockMagic.begin())) {
+        BlockHeader b{};
+        b.exponent = fixed[11];
+        const s32 n = static_cast<s32>(Le(fixed.data() + 12, 4));
+        if (n <= 0) return std::nullopt;
+        b.decompressed_size = Le(fixed.data() + 16, 8);
+        const auto sizes = f->ReadBytes(static_cast<u64>(n) * 4, block_start + BlockFixed);
+        if (sizes.size() != static_cast<u64>(n) * 4) return std::nullopt;
+        b.sizes.resize(n);
+        for (s32 i = 0; i < n; ++i) b.sizes[i] = static_cast<u32>(Le(sizes.data() + i * 4, 4));
+        payload_start = block_start + BlockFixed + static_cast<u64>(n) * 4;
+        bh = std::move(b);
+    } else {
+        payload_start = block_start;
+    }
+
+    if (!sections.empty() && sections[0].offset > static_cast<s64>(HeaderSize)) {
+        Section fake{};
+        fake.offset = static_cast<s64>(HeaderSize);
+        fake.size = sections[0].offset - static_cast<s64>(HeaderSize);
+        sections.insert(sections.begin(), fake);
+    }
+    return std::make_pair(std::move(sections), std::move(bh));
+}
+
+// Sequential reader over independently-compressed blocks, one block cached (like nsz_rs).
+class BlockReader {
+public:
+    BlockReader(FileSys::VirtualFile f, const BlockHeader& bh, u64 payload_start)
+        : source{std::move(f)}, block_size{1ULL << bh.exponent}, sizes{bh.sizes},
+          decompressed_size{bh.decompressed_size} {
+        if (bh.exponent < 14 || bh.exponent > 32 || sizes.empty())
+            throw std::runtime_error("bad NCZBLOCK header");
+        u64 off = payload_start;
+        offsets.reserve(sizes.size());
+        for (u32 s : sizes) { offsets.push_back(off); off += s; }
+    }
+
+    // Fills `out` from `position`; returns bytes written.
+    std::size_t ReadAt(u64 position, std::span<u8> out) {
+        std::size_t done = 0;
+        while (done < out.size() && position < decompressed_size) {
+            const u64 id = position / block_size;
+            if (id >= sizes.size()) break;
+            if (cache_id != id && !Load(id)) break;
+            const u64 in = position - id * block_size;
+            const std::size_t n = static_cast<std::size_t>(
+                std::min<u64>(out.size() - done, cache.size() - in));
+            std::memcpy(out.data() + done, cache.data() + in, n);
+            done += n;
+            position += n;
+        }
+        return done;
+    }
+
+private:
+    bool Load(u64 id) {
+        u64 want = block_size;
+        if (id + 1 == sizes.size()) {
+            const u64 rem = decompressed_size % block_size;
+            if (rem > 0) want = rem; // avoid the 0-size bug from the original nsz
+        }
+        try { cache.resize(static_cast<std::size_t>(want)); }
+        catch (const std::bad_alloc&) { return false; }
+        const u32 csize = sizes[id];
+        if (csize < want) {
+            const auto comp = source->ReadBytes(csize, offsets[id]);
+            if (comp.size() != csize ||
+                Common::Compression::DecompressDataZSTD(comp, cache) != want) return false;
+        } else if (source->Read(cache.data(), cache.size(), offsets[id]) != cache.size()) {
+            return false;
+        }
+        cache_id = id;
+        return true;
+    }
+
+    FileSys::VirtualFile source;
+    u64 block_size;
+    std::vector<u64> offsets;
+    std::vector<u32> sizes;
+    u64 decompressed_size;
+    u64 cache_id = ~0ULL;
+    std::vector<u8> cache;
+};
+
+class BlockNczFile final : public FileSys::VfsFile {
+public:
+    BlockNczFile(std::string name_, std::vector<u8> hdr_, std::vector<Section> sections_,
+                 std::unique_ptr<BlockReader> body_)
+        : name{std::move(name_)}, hdr{std::move(hdr_)}, sections{std::move(sections_)},
+          body{std::move(body_)} {
+        nca_size = HeaderSize;
+        for (const auto& s : sections)
+            nca_size = std::max<u64>(nca_size, static_cast<u64>(s.offset + s.size));
+        ciphers.reserve(sections.size());
+        for (const auto& s : sections)
+            ciphers.push_back(s.Ctr() ? std::make_unique<AESCipher<Key128>>(s.key, Mode::CTR)
+                                      : nullptr);
+    }
+
+    std::string GetName() const override { return name; }
+    std::size_t GetSize() const override { return static_cast<std::size_t>(nca_size); }
+    bool Resize(std::size_t) override { return false; }
+    FileSys::VirtualDir GetContainingDirectory() const override { return nullptr; }
+    bool IsWritable() const override { return false; }
+    bool IsReadable() const override { return true; }
+
+    std::size_t Read(u8* data, std::size_t len, std::size_t off) const override {
+        if (off >= nca_size) return 0;
+        len = static_cast<std::size_t>(std::min<u64>(len, nca_size - off));
+        const u64 end = off + len;
+        u64 pos = off;
+        if (pos < HeaderSize) {
+            const u64 n = std::min<u64>(end, HeaderSize) - pos;
+            std::memcpy(data, hdr.data() + pos, static_cast<std::size_t>(n));
+            pos += n;
+        }
+        std::scoped_lock lock{mutex};
+        for (std::size_t i = 0; i < sections.size() && pos < end; ++i) {
+            const auto& s = sections[i];
+            const u64 begin = std::max<u64>(static_cast<u64>(s.offset), HeaderSize);
+            const u64 stop = std::max<u64>(static_cast<u64>(s.offset + s.size), begin);
+            if (stop <= pos) continue;
+            if (pos < begin) {
+                const u64 g = std::min(end, begin);
+                std::memset(data + (pos - off), 0, static_cast<std::size_t>(g - pos));
+                pos = g;
+                if (pos >= end) break;
+            }
+            const u64 pe = std::min(end, stop);
+            const std::span<u8> piece(data + (pos - off), static_cast<std::size_t>(pe - pos));
+            if (body->ReadAt(pos - HeaderSize, piece) != piece.size())
+                return static_cast<std::size_t>(pos - off);
+            if (ciphers[i]) {
+                Key128 iv{};
+                SetIv(iv, s.counter, pos);
+                ciphers[i]->SetIV(iv);
+                ciphers[i]->Transcode(piece.data(), piece.size(), piece.data(), Op::Encrypt);
+            }
+            pos = pe;
+        }
+        return len;
+    }
+
+    std::size_t Write(const u8*, std::size_t, std::size_t) override { return 0; }
+    bool Rename(std::string_view) override { return false; }
+
+private:
+    const std::string name;
+    const std::vector<u8> hdr;
+    const std::vector<Section> sections;
+    const std::unique_ptr<BlockReader> body;
+    std::vector<std::unique_ptr<AESCipher<Key128>>> ciphers;
+    mutable std::mutex mutex;
+    u64 nca_size{};
+};
+
+// Solid NCZ: one zstd stream over the whole body. Decoded incrementally into memory, up to the
+// requested offset, so sequential install reads are O(n) instead of O(n^2).
+class SolidNczFile final : public FileSys::VfsFile {
+public:
+    SolidNczFile(std::string name_, FileSys::VirtualFile source_,
+                 std::vector<Section> sections_, u64 payload_start_)
+        : name{std::move(name_)}, source{std::move(source_)}, sections{std::move(sections_)},
+          payload_start{payload_start_} {
+        const auto raw_header = source->ReadBytes(HeaderSize, 0);
+        data.assign(raw_header.begin(), raw_header.end());
+        frontier = HeaderSize;
+    }
+
+    ~SolidNczFile() override {
+        if (stream != nullptr) ZSTD_freeDStream(stream);
+    }
+
+    std::string GetName() const override { return name; }
+    std::size_t GetSize() const override {
+        u64 size = HeaderSize;
+        for (const auto& s : sections)
+            size = std::max<u64>(size, static_cast<u64>(s.offset + s.size));
+        return static_cast<std::size_t>(size);
+    }
+    bool Resize(std::size_t) override { return false; }
+    FileSys::VirtualDir GetContainingDirectory() const override { return nullptr; }
+    bool IsWritable() const override { return false; }
+    bool IsReadable() const override { return true; }
+
+    std::size_t Read(u8* out, std::size_t len, std::size_t off) const override {
+        std::scoped_lock lock{mutex};
+        const u64 nca_size = GetSize();
+        if (off >= nca_size) return 0;
+        len = static_cast<std::size_t>(std::min<u64>(len, nca_size - off));
+        const u64 needed = off + len;
+        if (needed > frontier && !DecodeTo(needed)) return 0;
+        std::memcpy(out, data.data() + off, len);
+        return len;
+    }
+
+    std::size_t Write(const u8*, std::size_t, std::size_t) override { return 0; }
+    bool Rename(std::string_view) override { return false; }
+
+private:
+    bool DecodeTo(u64 needed) const {
+        if (stream == nullptr) {
+            stream = ZSTD_createDStream();
+            if (stream == nullptr) return false;
+            ZSTD_DCtx_setParameter(stream, ZSTD_d_windowLogMax, 31);
+            read_pos = payload_start;
+        }
+
+        const u64 file_size = source->GetSize();
+        std::vector<u8> out_buf(Chunk);
+
+        std::size_t index = 0;
+        for (; index < sections.size(); ++index) {
+            const auto& s = sections[index];
+            const u64 begin = std::max<u64>(static_cast<u64>(s.offset), HeaderSize);
+            const u64 end = std::max<u64>(static_cast<u64>(s.offset) + static_cast<u64>(s.size),
+                                          begin);
+            if (end > frontier) break;
+        }
+
+        for (; index < sections.size() && frontier < needed; ++index) {
+            const auto& s = sections[index];
+            const u64 begin = std::max<u64>(static_cast<u64>(s.offset), HeaderSize);
+            const u64 end = std::max<u64>(static_cast<u64>(s.offset) + static_cast<u64>(s.size),
+                                          begin);
+            if (end <= frontier) continue;
+            u64 pos = std::max<u64>(begin, frontier);
+
+            std::optional<AESCipher<Key128>> cipher;
+            if (s.Ctr()) cipher.emplace(s.key, Mode::CTR);
+
+            while (pos < end && frontier < needed) {
+                const u64 want = std::min<u64>(end - pos, out_buf.size());
+                std::size_t produced = 0;
+                while (produced < want) {
+                    if (in.pos >= in.size) {
+                        const u64 remaining = file_size - read_pos;
+                        const std::size_t chunk = static_cast<std::size_t>(
+                            std::min<u64>(Chunk, remaining));
+                        if (chunk == 0) { LOG_ERROR(Crypto, "Solid NCZ: truncated"); return false; }
+                        const auto bytes = source->ReadBytes(chunk, read_pos);
+                        if (bytes.empty()) { LOG_ERROR(Crypto, "Solid NCZ: truncated"); return false; }
+                        read_pos += bytes.size();
+                        in_buf.assign(bytes.begin(), bytes.end());
+                        in.src = in_buf.data();
+                        in.size = in_buf.size();
+                        in.pos = 0;
+                    }
+                    ZSTD_outBuffer outb{out_buf.data() + produced, want - produced, 0};
+                    const std::size_t res = ZSTD_decompressStream(stream, &outb, &in);
+                    if (ZSTD_isError(res)) {
+                        LOG_ERROR(Crypto, "Solid NCZ: zstd error");
+                        return false;
+                    }
+                    produced += outb.pos;
+                }
+                if (cipher) {
+                    Key128 iv{};
+                    SetIv(iv, s.counter, pos);
+                    cipher->SetIV(iv);
+                    cipher->Transcode(out_buf.data(), produced, out_buf.data(), Op::Encrypt);
+                }
+                data.insert(data.end(), out_buf.begin(), out_buf.begin() + produced);
+                pos += produced;
+                frontier = pos;
+            }
+        }
+        return frontier >= needed;
+    }
+
+    const std::string name;
+    const FileSys::VirtualFile source;
+    const std::vector<Section> sections;
+    const u64 payload_start;
+    mutable std::mutex mutex;
+    mutable std::vector<u8> data;
+    mutable ZSTD_DStream* stream = nullptr;
+    mutable u64 read_pos = 0;
+    mutable u64 frontier = 0;
+    mutable std::vector<u8> in_buf;
+    mutable ZSTD_inBuffer in{nullptr, 0, 0};
+};
+
+// Shared opener: block path always; solid only when allow_solid is true.
+FileSys::VirtualFile OpenNcz(const FileSys::VirtualFile& f, std::string_view name,
+                             bool allow_solid) {
+    if (!f) return nullptr;
+    u64 ps = 0;
+    auto parsed = ParseHeader(f, ps);
+    if (!parsed) return nullptr;
+    auto& [sections, block] = *parsed;
+
+    if (block) {
+        auto hdr = f->ReadBytes(HeaderSize, 0);
+        if (hdr.size() != HeaderSize) return nullptr;
+        std::unique_ptr<BlockReader> body;
+        try { body = std::make_unique<BlockReader>(f, *block, ps); }
+        catch (const std::exception& e) {
+            LOG_ERROR(Crypto, "Failed to open NCZBLOCK: {}", e.what());
+            return nullptr;
+        }
+        return std::make_shared<BlockNczFile>(std::string{name}, std::move(hdr),
+                                              std::move(sections), std::move(body));
+    }
+
+    if (allow_solid) {
+        return std::make_shared<SolidNczFile>(std::string{name}, f, std::move(sections), ps);
+    }
+
+    LOG_DEBUG(Crypto, "Solid NCZ {} skipped (only NCZBLOCK is supported for play)", name);
+    return nullptr;
+}
+
+} // Anonymous namespace
+
+bool IsBlockCompressedNCZ(const FileSys::VirtualFile& f) {
+    if (!f) return false;
+    u64 ps = 0;
+    const auto p = ParseHeader(f, ps);
+    return p && p->second.has_value();
+}
+
+FileSys::VirtualFile DecompressNCZ(const FileSys::VirtualFile& f, std::string_view name) {
+    return OpenNcz(f, name, /*allow_solid=*/false);
+}
+
+FileSys::VirtualFile DecompressNCZForInstall(const FileSys::VirtualFile& f,
+                                             std::string_view name) {
+    return OpenNcz(f, name, /*allow_solid=*/true);
+}
+
+} // namespace Core::Crypto
\ No newline at end of file
diff --git a/src/core/crypto/ncz_decompressor.h b/src/core/crypto/ncz_decompressor.h
new file mode 100644
index 0000000000..9557f8c517
--- /dev/null
+++ b/src/core/crypto/ncz_decompressor.h
@@ -0,0 +1,35 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <string_view>
+
+#include "core/file_sys/vfs/vfs_types.h"
+
+namespace Core::Crypto {
+
+/**
+ * Opens an NCZBLOCK-compressed NCA (nsz -B / .xcz block format) as a VirtualFile backed by
+ * on-demand block decoding. Nothing is written to disk; each read decodes only the blocks it
+ * covers and re-encrypts CTR sections. Solid NCZ is not supported.
+ *
+ * @param ncz_file    The raw NCZ payload (e.g. "<id>.ncz" entry from an NSZ/XCZ PFS0).
+ * @param output_name Name to give the returned VirtualFile (e.g. "<id>.nca").
+ *
+ * @return a VirtualFile for the NCA, or nullptr if the NCZ is malformed or not NCZBLOCK.
+ */
+[[nodiscard]] FileSys::VirtualFile DecompressNCZ(const FileSys::VirtualFile& ncz_file,
+                                                 std::string_view output_name);
+
+/**
+ * Returns true if the given file is an NCZ payload in block-compressed (NCZBLOCK) form,
+ * i.e. one that DecompressNCZ() can open. Solid NCZ returns false.
+ */
+[[nodiscard]] bool IsBlockCompressedNCZ(const FileSys::VirtualFile& ncz_file);
+
+// Install to NAND: same as DecompressNCZ, but solid NCZ is decoded on demand too.
+[[nodiscard]] FileSys::VirtualFile DecompressNCZForInstall(
+    const FileSys::VirtualFile& ncz_file, std::string_view output_name);
+
+} // namespace Core::Crypto
\ No newline at end of file
diff --git a/src/core/file_sys/registered_cache.cpp b/src/core/file_sys/registered_cache.cpp
index 1f430434f7..26e73d260a 100644
--- a/src/core/file_sys/registered_cache.cpp
+++ b/src/core/file_sys/registered_cache.cpp
@@ -16,6 +16,7 @@
 #include "common/random.h"
 #include "common/string_util.h"
 #include "core/crypto/key_manager.h"
+#include "core/crypto/ncz_decompressor.h"
 #include "core/file_sys/card_image.h"
 #include "core/file_sys/common_funcs.h"
 #include "core/file_sys/content_archive.h"
@@ -158,6 +159,25 @@ static std::shared_ptr<NSP> OpenContainerAsNsp(const VirtualFile& file, Loader::
     return nullptr;
 }
 
+// Checks that every .ncz entry in the container is NCZBLOCK. Solid NCZ has no random access,
+// and the whole point of this build is to reject it at scan time so such files never appear
+// in the game list. Containers without any .ncz (plain NSP/XCI) pass through.
+static bool ContainerIsFullyBlockCompressed(const std::shared_ptr<NSP>& nsp) {
+    if (!nsp) {
+        return false;
+    }
+    for (const auto& entry : nsp->GetFiles()) {
+        const auto name = entry->GetName();
+        if (name.size() < 4 || name.substr(name.size() - 4) != ".ncz") {
+            continue;
+        }
+        if (!Core::Crypto::IsBlockCompressedNCZ(entry)) {
+            return false; // solid NCZ -> reject the whole container
+        }
+    }
+    return true; // no .ncz at all, or all block-compressed
+}
+
 template <typename Callback>
 bool ForEachContainerEntry(const std::shared_ptr<NSP>& nsp, bool only_content,
                            std::optional<u64> base_program_id, Callback&& on_entry) {
@@ -811,7 +831,14 @@ std::vector<ContentProviderEntry> RegisteredCache::ListEntriesFilter(
 }
 
 static std::shared_ptr<NCA> GetNCAFromNSPForID(const NSP& nsp, const NcaID& id) {
-    auto file = nsp.GetFile(fmt::format("{}.nca", Common::HexToString(id, false)));
+    const auto id_string = Common::HexToString(id, false);
+    auto file = nsp.GetFile(fmt::format("{}.nca", id_string));
+    if (file == nullptr) {
+        if (auto ncz_file = nsp.GetFile(fmt::format("{}.ncz", id_string))) {
+            file = Core::Crypto::DecompressNCZForInstall(
+                ncz_file, fmt::format("{}.nca", id_string));
+        }
+    }
     if (file == nullptr) {
         return nullptr;
     }
@@ -1273,6 +1300,12 @@ bool ManualContentProvider::AddEntriesFromContainer(VirtualFile file, bool only_
         return false;
     }
 
+    // Reject solid NCZ (.nsz without -B): only block-compressed NCZ is supported.
+    if (!ContainerIsFullyBlockCompressed(nsp)) {
+        LOG_DEBUG(Service_FS, "Skipping solid-compressed container: {}", file->GetName());
+        return false;
+    }
+
     return ForEachContainerEntry(
         nsp, only_content, base_program_id,
         [this](TitleType title_type, ContentRecordType content_type, u64 title_id,
@@ -1415,8 +1448,9 @@ void ExternalContentProvider::ScanDirectory(const VirtualDir& dir) {
         }
 
         const auto extension = Common::ToLower(filename.substr(dot_pos + 1));
-
-        if (extension == "nsp") {
+        // .xcz is an XCI container, but its updates only work through the NSP/PFS0 path
+        // (DecompressNCZ), not ProcessXCI. So route .xcz here on purpose.
+        if (extension == "nsp" || extension == "nsz" || extension == "xcz") {
             ProcessNSP(file);
         } else if (extension == "xci") {
             ProcessXCI(file);
@@ -1434,6 +1468,12 @@ void ExternalContentProvider::ProcessNSP(const VirtualFile& file) {
         return;
     }
 
+    // Reject solid NCZ (.nsz without -B): Eden only supports block-compressed NCZ.
+    if (!ContainerIsFullyBlockCompressed(nsp)) {
+        LOG_DEBUG(Service_FS, "Skipping solid-compressed container: {}", file->GetName());
+        return;
+    }
+
     LOG_DEBUG(Service_FS, "Processing NSP file: {}", file->GetName());
     AddExternalEntriesFromContainer(nsp, entries, versions, multi_version_entries);
 }
diff --git a/src/core/file_sys/submission_package.cpp b/src/core/file_sys/submission_package.cpp
index 0ea323492b..1a39d819f6 100644
--- a/src/core/file_sys/submission_package.cpp
+++ b/src/core/file_sys/submission_package.cpp
@@ -12,6 +12,7 @@
 #include "common/hex_util.h"
 #include "common/logging.h"
 #include "core/crypto/key_manager.h"
+#include "core/crypto/ncz_decompressor.h"
 #include "core/file_sys/common_funcs.h"
 #include "core/file_sys/content_archive.h"
 #include "core/file_sys/nca_metadata.h"
@@ -246,6 +247,17 @@ void NSP::ReadNCAs(const std::vector<VirtualFile>& files) {
                 const auto id_string = Common::HexToString(rec.nca_id, false);
                 auto next_file = pfs->GetFile(fmt::format("{}.nca", id_string));
 
+                if (next_file == nullptr) {
+                    auto ncz_file = pfs->GetFile(fmt::format("{}.ncz", id_string));
+                    if (ncz_file != nullptr) {
+                        next_file = Core::Crypto::DecompressNCZ(ncz_file, fmt::format("{}.nca", id_string));
+                        if (next_file == nullptr) {
+                            LOG_DEBUG(Service_FS, "Skipping solid or unsupported NCZ content {}.ncz", id_string);
+                            continue;
+                        }
+                    }
+                }
+
                 if (next_file == nullptr) {
                     if (rec.type != ContentRecordType::DeltaFragment) {
                         LOG_WARNING(Service_FS,
diff --git a/src/core/loader/loader.cpp b/src/core/loader/loader.cpp
index 90e23ccc11..92e2e2f602 100644
--- a/src/core/loader/loader.cpp
+++ b/src/core/loader/loader.cpp
@@ -82,23 +82,27 @@ std::shared_ptr<FileSys::NSP> OpenContainerAsNsp(FileSys::VirtualFile file, File
         return nullptr;
     }
 
-    if (type == FileType::NSP) {
+    if (type == FileType::NSP || type == FileType::NSZ) {
         auto nsp = std::make_shared<FileSys::NSP>(file, program_id, program_index);
         return nsp->GetStatus() == ResultStatus::Success ? nsp : nullptr;
     }
 
-    if (type == FileType::XCI) {
+    if (type == FileType::XCI || type == FileType::XCZ) {
         FileSys::XCI xci{file, program_id, program_index};
-        if (xci.GetStatus() != ResultStatus::Success) {
-            return nullptr;
+        if (xci.GetStatus() == ResultStatus::Success) {
+            auto secure_nsp = xci.GetSecurePartitionNSP();
+            if (secure_nsp != nullptr && secure_nsp->GetStatus() == ResultStatus::Success) {
+                return secure_nsp;
+            }
         }
 
-        auto secure_nsp = xci.GetSecurePartitionNSP();
-        if (secure_nsp == nullptr || secure_nsp->GetStatus() != ResultStatus::Success) {
-            return nullptr;
+        // PFS0-shaped .xcz (NSZ-style container) does not parse as XCI; fall back to NSP.
+        if (type == FileType::XCZ) {
+            auto nsp = std::make_shared<FileSys::NSP>(file, program_id, program_index);
+            return nsp->GetStatus() == ResultStatus::Success ? nsp : nullptr;
         }
 
-        return secure_nsp;
+        return nullptr;
     }
 
     return nullptr;
@@ -144,7 +148,8 @@ FileType IdentifyFile(FileSys::VirtualFile file) {
 }
 
 bool IsContainerType(FileType type) {
-    return type == FileType::NSP || type == FileType::XCI;
+    return type == FileType::NSP || type == FileType::NSZ || type == FileType::XCI ||
+           type == FileType::XCZ;
 }
 
 bool IsBootableGameContainer(FileSys::VirtualFile file, FileType type, u64 program_id,
@@ -180,8 +185,12 @@ FileType GuessFromFilename(const std::string& name) {
         return FileType::NCA;
     else if (extension == "xci")
         return FileType::XCI;
+    else if (extension == "xcz")
+        return FileType::XCZ;
     else if (extension == "nsp")
         return FileType::NSP;
+    else if (extension == "nsz")
+        return FileType::NSZ;
     else if (extension == "kip")
         return FileType::KIP;
     return FileType::Unknown;
@@ -197,10 +206,14 @@ std::string GetFileTypeString(FileType type) {
         return "NCA";
     case FileType::XCI:
         return "XCI";
+    case FileType::XCZ:
+        return "XCZ";
     case FileType::NAX:
         return "NAX";
     case FileType::NSP:
         return "NSP";
+    case FileType::NSZ:
+        return "NSZ";
     case FileType::KIP:
         return "KIP";
     case FileType::DeconstructedRomDirectory:
@@ -326,12 +339,29 @@ static std::unique_ptr<AppLoader> GetFileLoader(Core::System& system, FileSys::V
                                                system.GetContentProvider(), program_id,
                                                program_index);
 
+    // NCZ-compressed XCI container. XCI-shaped .xcz goes to the XCI loader, while
+    // PFS0-shaped (NSZ-style) .xcz containers fall back to the NSP loader.
+    case FileType::XCZ: {
+        FileSys::XCI probe{file, program_id, program_index};
+        if (probe.GetStatus() == ResultStatus::Success &&
+            probe.GetSecurePartitionNSP() != nullptr) {
+            return std::make_unique<AppLoader_XCI>(std::move(file),
+                                                   system.GetFileSystemController(),
+                                                   system.GetContentProvider(), program_id,
+                                                   program_index);
+        }
+        return std::make_unique<AppLoader_NSP>(std::move(file), system.GetFileSystemController(),
+                                               system.GetContentProvider(), program_id,
+                                               program_index);
+    }
+
     // NX NAX (NintendoAesXts) file format.
     case FileType::NAX:
         return std::make_unique<AppLoader_NAX>(std::move(file));
 
     // NX NSP (Nintendo Submission Package) file format
     case FileType::NSP:
+    case FileType::NSZ:
         return std::make_unique<AppLoader_NSP>(std::move(file), system.GetFileSystemController(),
                                                system.GetContentProvider(), program_id,
                                                program_index);
diff --git a/src/core/loader/loader.h b/src/core/loader/loader.h
index 95ce638da0..d3c0230cb0 100644
--- a/src/core/loader/loader.h
+++ b/src/core/loader/loader.h
@@ -42,7 +42,9 @@ enum class FileType {
     NRO,
     NCA,
     NSP,
+    NSZ,
     XCI,
+    XCZ,
     NAX,
     KIP,
     DeconstructedRomDirectory,
diff --git a/src/core/loader/nsp.cpp b/src/core/loader/nsp.cpp
index cfc908b4ef..8b2c79394d 100644
--- a/src/core/loader/nsp.cpp
+++ b/src/core/loader/nsp.cpp
@@ -56,6 +56,17 @@ AppLoader_NSP::AppLoader_NSP(FileSys::VirtualFile file_,
 AppLoader_NSP::~AppLoader_NSP() = default;
 
 FileType AppLoader_NSP::IdentifyType(const FileSys::VirtualFile& nsp_file) {
+    // .nsz is NSP-compatible; return NSZ so the game list shows the right type.
+    if (nsp_file->GetName().ends_with(".nsz")) {
+        return FileType::NSZ;
+    }
+
+    // PFS0-shaped .xcz containers are handled by this loader too; report XCZ so the game
+    // list does not show them as NSP. XCI-shaped .xcz is identified by AppLoader_XCI.
+    if (nsp_file->GetName().ends_with(".xcz")) {
+        return FileType::XCZ;
+    }
+
     const FileSys::NSP nsp(nsp_file);
 
     if (nsp.GetStatus() != ResultStatus::Success) {
diff --git a/src/frontend_common/content_manager.h b/src/frontend_common/content_manager.h
index 4f3112e3fb..6d79098efa 100644
--- a/src/frontend_common/content_manager.h
+++ b/src/frontend_common/content_manager.h
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: 2024 yuzu Emulator Project
@@ -163,7 +163,9 @@ inline InstallResult InstallNSP(Core::System& system, FileSys::VfsFilesystem& vf
 
     std::shared_ptr<FileSys::NSP> nsp;
     FileSys::VirtualFile file = vfs.OpenFile(filename, FileSys::OpenMode::Read);
-    if (boost::to_lower_copy(file->GetName()).ends_with("nsp")) {
+    const auto lower_name = boost::to_lower_copy(file->GetName());
+
+    if (lower_name.ends_with("nsp") || lower_name.ends_with("nsz")) {
         nsp = std::make_shared<FileSys::NSP>(file);
         if (nsp->IsExtractedType()) {
             return InstallResult::Failure;
diff --git a/src/qt_common/game_list/worker.cpp b/src/qt_common/game_list/worker.cpp
index 586a26e8b9..6b6f93447d 100644
--- a/src/qt_common/game_list/worker.cpp
+++ b/src/qt_common/game_list/worker.cpp
@@ -360,7 +360,8 @@ void GameListWorker::ScanFileSystem(ScanTarget target, const std::string& dir_pa
             }
 
             if (target == ScanTarget::PopulateGameList &&
-                (file_type == Loader::FileType::XCI || file_type == Loader::FileType::NSP) &&
+                (file_type == Loader::FileType::XCI || file_type == Loader::FileType::XCZ ||
+                 file_type == Loader::FileType::NSP || file_type == Loader::FileType::NSZ) &&
                 !Loader::IsBootableGameContainer(file, file_type)) {
                 return true;
             }
@@ -375,7 +376,9 @@ void GameListWorker::ScanFileSystem(ScanTarget target, const std::string& dir_pa
                                        program_id, file);
                 } else if (Settings::values.ext_content_from_game_dirs.GetValue() &&
                            (file_type == Loader::FileType::XCI ||
-                            file_type == Loader::FileType::NSP)) {
+                            file_type == Loader::FileType::XCZ ||
+                            file_type == Loader::FileType::NSP ||
+                            file_type == Loader::FileType::NSZ)) {
                     void(provider->AddEntriesFromContainer(file));
                 }
             } else {
@@ -402,7 +405,8 @@ void GameListWorker::ScanFileSystem(ScanTarget target, const std::string& dir_pa
                 };
 
                 if (res2 == Loader::ResultStatus::Success && program_ids.size() > 1 &&
-                    (file_type == Loader::FileType::XCI || file_type == Loader::FileType::NSP)) {
+                    (file_type == Loader::FileType::XCI || file_type == Loader::FileType::XCZ ||
+                     file_type == Loader::FileType::NSP || file_type == Loader::FileType::NSZ)) {
                     for (const auto id : program_ids) {
                         // dravee suggested this, only viable way to
                         // not show sub-games in qlaunch for now.
diff --git a/src/qt_common/qt_common.cpp b/src/qt_common/qt_common.cpp
index b9b8caf6e8..794aeaabb1 100644
--- a/src/qt_common/qt_common.cpp
+++ b/src/qt_common/qt_common.cpp
@@ -57,7 +57,8 @@ std::unique_ptr<EmuThread> emu_thread = nullptr;
 
 const QStringList supported_file_extensions = {QStringLiteral("nro"), QStringLiteral("nso"),
                                                QStringLiteral("nca"), QStringLiteral("xci"),
-                                               QStringLiteral("nsp"), QStringLiteral("kip")};
+                                               QStringLiteral("xcz"), QStringLiteral("nsp"),
+                                               QStringLiteral("nsz"), QStringLiteral("kip")};
 
 Core::Frontend::WindowSystemType GetWindowSystemType() {
     // Determine WSI type based on Qt platform.
diff --git a/src/yuzu/main_window.cpp b/src/yuzu/main_window.cpp
index 6e21265f9e..ad76e5b2db 100644
--- a/src/yuzu/main_window.cpp
+++ b/src/yuzu/main_window.cpp
@@ -2797,9 +2797,9 @@ void MainWindow::IncrementInstallProgress() {
 
 void MainWindow::OnMenuInstallToNAND() {
     const QString file_filter =
-        tr("Installable Switch File (*.nca *.nsp *.xci);;Nintendo Content Archive "
-           "(*.nca);;Nintendo Submission Package (*.nsp);;NX Cartridge "
-           "Image (*.xci)");
+        tr("Installable Switch File (*.nca *.nsp *.nsz *.xci *.xcz);;Nintendo Content Archive "
+           "(*.nca);;Nintendo Submission Package (*.nsp *.nsz);;NX Cartridge "
+           "Image (*.xci *.xcz)");
 
     QStringList filenames = QFileDialog::getOpenFileNames(
         this, tr("Install Files"), QString::fromStdString(UISettings::values.roms_path),
@@ -2856,7 +2856,10 @@ void MainWindow::OnMenuInstallToNAND() {
         QFuture<ContentManager::InstallResult> future;
         ContentManager::InstallResult result;
 
-        if (file.endsWith(QStringLiteral("nsp"), Qt::CaseInsensitive)) {
+        if (file.endsWith(QStringLiteral("nsp"), Qt::CaseInsensitive) ||
+            file.endsWith(QStringLiteral("nsz"), Qt::CaseInsensitive) ||
+            file.endsWith(QStringLiteral("xci"), Qt::CaseInsensitive) ||
+            file.endsWith(QStringLiteral("xcz"), Qt::CaseInsensitive)) {
             const auto progress_callback = [this](size_t size, size_t progress) {
                 emit UpdateInstallProgress();
                 if (install_progress->wasCanceled()) {

From a95efaf18f50721aa6f5cdce8b5b94e858ffd8d1 Mon Sep 17 00:00:00 2001
From: wildcard <wildcard@eden-emu.dev>
Date: Mon, 26 Oct 2026 17:23:45 +0100
Subject: [PATCH 05/13] [vulkan] Fix TOTK dark squares (#4565)

Qualcomm and Turnip use different subpixel rounding for Vulkan texture
gather coordinates than the Switch's Maxwell GPU. This can select the
wrong texels near texture boundaries, producing large black squares in TOTK

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md).
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4565
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
---
 src/video_core/renderer_vulkan/vk_pipeline_cache.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
index a85e2811a3..e9403580d5 100644
--- a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
+++ b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
@@ -447,7 +447,9 @@ PipelineCache::PipelineCache(Tegra::MaxwellDeviceMemoryManager& device_memory_,
                                        driver_id == VK_DRIVER_ID_AMD_OPEN_SOURCE ||
                                        driver_id == VK_DRIVER_ID_MESA_RADV ||
                                        driver_id == VK_DRIVER_ID_INTEL_PROPRIETARY_WINDOWS ||
-                                       driver_id == VK_DRIVER_ID_INTEL_OPEN_SOURCE_MESA,
+                                       driver_id == VK_DRIVER_ID_INTEL_OPEN_SOURCE_MESA ||
+                                       driver_id == VK_DRIVER_ID_QUALCOMM_PROPRIETARY ||
+                                       driver_id == VK_DRIVER_ID_MESA_TURNIP,
 
         .has_broken_spirv_clamp = driver_id == VK_DRIVER_ID_INTEL_PROPRIETARY_WINDOWS,
         .has_broken_spirv_position_input = driver_id == VK_DRIVER_ID_QUALCOMM_PROPRIETARY,

From 0689f73147ebeddb9ac5fb8b0edf2625425f8d71 Mon Sep 17 00:00:00 2001
From: xbzk <xbzk@eden-emu.dev>
Date: Mon, 26 Oct 2026 17:24:00 +0100
Subject: [PATCH 06/13] [ir] resolve conditional Phi inputs when tracking
 bindless texture handles (#4551)

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md).
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------
Aimed to fix Ender Magnolia missing shader textures. Main example is Yolvan character bullets.

By using windows version of the game, dxvk lib to make it vulkan, and renderdoc, it was possible to capture bullets, and by tracking backward composition and comparing with a similar scene from eden with missing bullets, it was possible to unveil the missing functionality: conditional Phi inputs resolve for bindless handles.
By ignoring the boolean predicate register in the shader, handles for these shaders were resolving to some old value instead of proper live conditional ones.

TESTS:
-Compare Yolvan bullets
-Usual roam on main titles for regression check.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4551
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
---
 .../frontend/ir/breadth_first_search.h        | 11 ++-
 src/shader_recompiler/ir_opt/texture_pass.cpp | 87 +++++++++++++++----
 2 files changed, 79 insertions(+), 19 deletions(-)

diff --git a/src/shader_recompiler/frontend/ir/breadth_first_search.h b/src/shader_recompiler/frontend/ir/breadth_first_search.h
index ec55425549..afe153f180 100644
--- a/src/shader_recompiler/frontend/ir/breadth_first_search.h
+++ b/src/shader_recompiler/frontend/ir/breadth_first_search.h
@@ -1,8 +1,12 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 
+#include <functional>
 #include <optional>
 #include <type_traits>
 #include <queue>
@@ -13,9 +17,10 @@
 
 namespace Shader::IR {
 
-template <typename Pred>
-auto BreadthFirstSearch(const Value& value, Pred&& pred)
+template <typename Pred, typename Resolve = std::identity>
+auto BreadthFirstSearch(Value value, Pred&& pred, Resolve&& resolve = {})
     -> std::invoke_result_t<Pred, const Inst*> {
+    value = resolve(value);
     if (value.IsImmediate()) {
         // Nothing to do with immediates
         return std::nullopt;
@@ -36,7 +41,7 @@ auto BreadthFirstSearch(const Value& value, Pred&& pred)
         }
         // Visit the right most arguments first
         for (size_t arg = inst->NumArgs(); arg--;) {
-            const Value arg_value{inst->Arg(arg)};
+            const Value arg_value{resolve(inst->Arg(arg))};
             if (arg_value.IsImmediate()) {
                 continue;
             }
diff --git a/src/shader_recompiler/ir_opt/texture_pass.cpp b/src/shader_recompiler/ir_opt/texture_pass.cpp
index fe34a67555..fae69ab91b 100644
--- a/src/shader_recompiler/ir_opt/texture_pass.cpp
+++ b/src/shader_recompiler/ir_opt/texture_pass.cpp
@@ -31,6 +31,60 @@ struct TextureInst {
 
 using TextureInstVector = boost::container::small_vector<TextureInst, 24>;
 
+const IR::Block* ConditionalHeader(const IR::Block* body) {
+    const auto predecessors{body->ImmPredecessors()};
+    const auto successors{body->ImmSuccessors()};
+    if (predecessors.size() != 1 || successors.size() != 1) return nullptr;
+    const IR::Block* const header{predecessors[0]};
+    const auto targets{header->ImmSuccessors()};
+    if (targets.size() != 2 || targets[0] != body || targets[1] != successors[0] ||
+        targets[1]->ImmPredecessors().size() != 2 || header->empty() ||
+        header->back().GetOpcode() != IR::Opcode::ConditionRef) {
+        return nullptr;
+    }
+    return header;
+}
+
+std::pair<IR::Value, bool> Condition(IR::Value value) {
+    bool negated{};
+    while (const IR::Inst* inst = value.TryInstRecursive()) {
+        if (inst->GetOpcode() == IR::Opcode::LogicalNot) negated = !negated;
+        else if (inst->GetOpcode() != IR::Opcode::ConditionRef) break;
+        value = inst->Arg(0);
+    }
+    return {value.Resolve(), negated};
+}
+
+IR::Value ResolveConditionalPhi(IR::Value value, const IR::Block* block) {
+    if (!value.Resolve().IsPhi() || !(block = ConditionalHeader(block))) return value;
+    const auto [condition, negated]{Condition(block->back().Arg(0))};
+    boost::container::small_vector<const IR::Block*, 16> visited;
+    while (value.Resolve().IsPhi() && std::ranges::find(visited, block) == visited.end()) {
+        visited.push_back(block);
+        const IR::Inst* const phi{value.InstRecursive()};
+        const auto predecessors{block->ImmPredecessors()};
+        if (predecessors.size() == 1) {
+            block = predecessors[0];
+            continue;
+        }
+        if (predecessors.size() != 2 || phi->NumArgs() != 2) break;
+        const IR::Block* body{predecessors[0]};
+        const IR::Block* header{ConditionalHeader(body)};
+        if (header != predecessors[1]) {
+            body = predecessors[1];
+            header = ConditionalHeader(body);
+            if (header != predecessors[0]) break;
+        }
+        const auto [other_condition, other_negated]{Condition(header->back().Arg(0))};
+        if (condition == other_condition && (phi->PhiBlock(0) == header || phi->PhiBlock(0) == body)) {
+            const IR::Block* const incoming{negated == other_negated ? body : header};
+            value = phi->Arg(phi->PhiBlock(0) == incoming ? 0 : 1);
+        }
+        block = header;
+    }
+    return value;
+}
+
 constexpr u32 DESCRIPTOR_SIZE = 8;
 constexpr u32 DESCRIPTOR_SIZE_SHIFT = u32(std::countr_zero(DESCRIPTOR_SIZE));
 constexpr u32 DESCRIPTOR_MAX_COUNT = 1024;
@@ -299,23 +353,23 @@ static inline bool IsTexturePixelFormatIntegerCached(Environment& env,
 }
 
 
-std::optional<ConstBufferAddr> Track(const IR::Value& value, Environment& env, const HostTranslateInfo& host_info);
-static inline std::optional<ConstBufferAddr> TrackCached(const IR::Value& v, Environment& env, const HostTranslateInfo& host_info) {
-    if (const IR::Inst* key = v.InstRecursive()) {
+std::optional<ConstBufferAddr> Track(const IR::Value& value, Environment& env, const HostTranslateInfo& host_info, const IR::Block* block);
+static inline std::optional<ConstBufferAddr> TrackCached(const IR::Value& v, Environment& env, const HostTranslateInfo& host_info, const IR::Block* block) {
+    if (const IR::Inst* key = v.TryInstRecursive()) {
         if (auto it = env.track_cache.find(key); it != env.track_cache.end()) return it->second;
-        auto found = Track(v, env, host_info);
+        auto found = Track(v, env, host_info, block);
         if (found) env.track_cache.emplace(key, *found);
         return found;
     }
-    return Track(v, env, host_info);
+    return Track(v, env, host_info, block);
 }
 
-std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst, Environment& env, const HostTranslateInfo& host_info);
+std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst, Environment& env, const HostTranslateInfo& host_info, const IR::Block* block);
 
-std::optional<ConstBufferAddr> Track(const IR::Value& value, Environment& env, const HostTranslateInfo& host_info) {
-    return IR::BreadthFirstSearch(value, [&env, &host_info](const IR::Inst* inst) {
-        return TryGetConstBuffer(inst, env, host_info);
-    });
+std::optional<ConstBufferAddr> Track(const IR::Value& value, Environment& env, const HostTranslateInfo& host_info, const IR::Block* block) {
+    return IR::BreadthFirstSearch(value, [&env, &host_info, block](const IR::Inst* inst) {
+        return TryGetConstBuffer(inst, env, host_info, block);
+    }, [&](IR::Value operand) { return ResolveConditionalPhi(operand, block); });
 }
 
 std::optional<u32> TryGetConstant(IR::Value& value, Environment& env) {
@@ -339,13 +393,13 @@ std::optional<u32> TryGetConstant(IR::Value& value, Environment& env) {
     return ReadCbufCached(env, index_number, offset_number);
 }
 
-std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst, Environment& env, const HostTranslateInfo& host_info) {
+std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst, Environment& env, const HostTranslateInfo& host_info, const IR::Block* block) {
     switch (inst->GetOpcode()) {
     default:
         return std::nullopt;
     case IR::Opcode::BitwiseOr32: {
-        std::optional lhs{TrackCached(inst->Arg(0), env, host_info)};
-        std::optional rhs{TrackCached(inst->Arg(1), env, host_info)};
+        std::optional lhs{TrackCached(inst->Arg(0), env, host_info, block)};
+        std::optional rhs{TrackCached(inst->Arg(1), env, host_info, block)};
         if (!lhs || !rhs) {
             return std::nullopt;
         }
@@ -375,7 +429,7 @@ std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst, Environme
         if (!shift.IsImmediate()) {
             return std::nullopt;
         }
-        std::optional lhs{TrackCached(inst->Arg(0), env, host_info)};
+        std::optional lhs{TrackCached(inst->Arg(0), env, host_info, block)};
         if (lhs) {
             lhs->shift_left = shift.U32();
         }
@@ -403,7 +457,7 @@ std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst, Environme
                 return std::nullopt;
             } while (false);
         }
-        std::optional lhs{TrackCached(op1, env, host_info)};
+        std::optional lhs{TrackCached(op1, env, host_info, block)};
         if (lhs) {
             lhs->shift_left = static_cast<u32>(std::countr_zero(op2.U32()));
         }
@@ -469,7 +523,7 @@ std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst, Environme
 TextureInst MakeInst(Environment& env, IR::Block* block, IR::Inst& inst, const HostTranslateInfo& host_info) {
     ConstBufferAddr addr;
     if (IsBindless(inst)) {
-        const std::optional<ConstBufferAddr> track_addr{TrackCached(inst.Arg(0), env, host_info)};
+        const std::optional<ConstBufferAddr> track_addr{TrackCached(inst.Arg(0), env, host_info, block)};
 
         if (!track_addr) {
             throw NotImplementedException("Failed to track bindless texture constant buffer");
@@ -671,6 +725,7 @@ void TexturePass(Environment& env, IR::Program& program, const HostTranslateInfo
     env.track_cache.clear();
     TextureInstVector to_replace;
     for (IR::Block* const block : program.post_order_blocks) {
+        env.track_cache.clear();
         for (IR::Inst& inst : block->Instructions()) {
             if (!IsTextureInstruction(inst)) {
                 continue;

From 0e11fe8b5e3d3b563946726ed06cb44b2bf5ccb3 Mon Sep 17 00:00:00 2001
From: xbzk <xbzk@eden-emu.dev>
Date: Mon, 26 Oct 2026 17:24:28 +0100
Subject: [PATCH 07/13] [video_core, settings] readback for nce invalidations
 (#4490) optimization and nuke toggles (#4502) (#4531)

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md).
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Follow up for #4490: Originally i was racing locks between dirty and clean invalidations, but +94% were clean so it was causing useless locks. Solutioin was to share locks between both.

P.S.: THIS IS INTENDED TO FIX RANDOM CRASHES IN UE, OBJECTIVELY REPRODUCIBLE IN ENDER MAGNOLIA IN ANDROID.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4531
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
---
 .../features/settings/model/BooleanSetting.kt        |  1 -
 .../features/settings/model/view/SettingsItem.kt     |  7 -------
 .../settings/ui/SettingsFragmentPresenter.kt         |  1 -
 src/android/app/src/main/res/values-ar/strings.xml   |  2 --
 .../app/src/main/res/values-zh-rTW/strings.xml       |  2 --
 src/android/app/src/main/res/values/strings.xml      |  2 --
 src/common/settings.h                                |  2 --
 src/qt_common/config/shared_translation.cpp          |  4 ----
 src/video_core/gpu.cpp                               |  6 +++---
 src/video_core/rasterizer_interface.h                |  9 +++++++++
 src/video_core/renderer_vulkan/vk_rasterizer.cpp     | 12 ++++++++++++
 src/video_core/renderer_vulkan/vk_rasterizer.h       |  1 +
 12 files changed, 25 insertions(+), 24 deletions(-)

diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/BooleanSetting.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/BooleanSetting.kt
index 0548004cf5..6c33fc7812 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/BooleanSetting.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/BooleanSetting.kt
@@ -16,7 +16,6 @@ enum class BooleanSetting(override val key: String) : AbstractBooleanSetting {
     RENDERER_USE_SPEED_LIMIT("use_speed_limit"),
     USE_CUSTOM_CPU_TICKS("use_custom_cpu_ticks"),
     SKIP_CPU_INNER_INVALIDATION("skip_cpu_inner_invalidation"),
-    NCE_INVALIDATION_GPU_READBACK("nce_invalidation_gpu_readback"),
     FIX_BLOOM_EFFECTS("fix_bloom_effects"),
     EMULATE_BGR565("emulate_bgr565"),
     RESCALE_HACK("rescale_hack"),
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt
index 690c746628..f968a0ae18 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt
@@ -859,13 +859,6 @@ abstract class SettingsItem(
                     descriptionId = R.string.skip_cpu_inner_invalidation_description
                 )
             )
-            put(
-                SwitchSetting(
-                    BooleanSetting.NCE_INVALIDATION_GPU_READBACK,
-                    titleId = R.string.nce_invalidation_gpu_readback,
-                    descriptionId = R.string.nce_invalidation_gpu_readback_description
-                )
-            )
             put(
                 SwitchSetting(
                     BooleanSetting.FIX_BLOOM_EFFECTS,
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt
index f9185e39e6..824a54181e 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt
@@ -554,7 +554,6 @@ class SettingsFragmentPresenter(
             add(HeaderSetting(R.string.hacks))
 
             add(BooleanSetting.SKIP_CPU_INNER_INVALIDATION.key)
-            add(BooleanSetting.NCE_INVALIDATION_GPU_READBACK.key)
             add(BooleanSetting.FIX_BLOOM_EFFECTS.key)
             add(BooleanSetting.EMULATE_BGR565.key)
             add(BooleanSetting.RENDERER_ASYNCHRONOUS_SHADERS.key)
diff --git a/src/android/app/src/main/res/values-ar/strings.xml b/src/android/app/src/main/res/values-ar/strings.xml
index 2fdff9847b..3be04d9186 100644
--- a/src/android/app/src/main/res/values-ar/strings.xml
+++ b/src/android/app/src/main/res/values-ar/strings.xml
@@ -587,8 +587,6 @@
     <string name="fast_gpu_time_description">يجعل اللعبة تعتقد أن عمل وحدة معالجة الرسومات ينتهي بشكل أسرع مما هو عليه في الواقع، لذلك تتوقف عن خفض الدقة ومسافة العرض لتتناسب مع سرعات جهاز Switch.</string>
     <string name="skip_cpu_inner_invalidation">تخطي إبطال صلاحية وحدة المعالجة المركزية الداخلية</string>
     <string name="skip_cpu_inner_invalidation_description">يتخطى بعض عمليات إبطال ذاكرة التخزين المؤقتة من جانب وحدة المعالجة المركزية أثناء تحديثات الذاكرة، مما يقلل من استخدام وحدة المعالجة المركزية ويحسن أداءها. قد يتسبب ذلك في حدوث أعطال أو تعطل في بعض الألعاب.</string>
-    <string name="nce_invalidation_gpu_readback">إعادة قراءة وحدة معالجة الرسومات قبل إبطال صلاحية NCE</string>
-    <string name="nce_invalidation_gpu_readback_description">إصلاح مؤقت. يعالج مشكلة تعطل لعبة Ender Magnolia (وغيرها من ألعاب UE). قد يؤدي إلى انخفاض في الأداء. يجري العمل على تحسينه.</string>
     <string name="fix_bloom_effects">إصلاح تأثيرات التوهج</string>
     <string name="fix_bloom_effects_description">يقلل من ضبابية التوهج في LA/EOW  (Adreno A6XX - A7XX/ Turnip)، ويزيل التوهج في Burnout. تحذير: قد يسبب تشوهات رسومية في ألعاب أخرى.</string>
     <string name="emulate_bgr565">محاكاة BGR565</string>
diff --git a/src/android/app/src/main/res/values-zh-rTW/strings.xml b/src/android/app/src/main/res/values-zh-rTW/strings.xml
index 3f0c6d9215..1391f1bc6e 100644
--- a/src/android/app/src/main/res/values-zh-rTW/strings.xml
+++ b/src/android/app/src/main/res/values-zh-rTW/strings.xml
@@ -577,8 +577,6 @@
     <string name="fast_gpu_time_description">讓遊戲誤以為 GPU 工作能更快完成，避免遊戲為了配合 Switch 的時脈而降低解析度與渲染距離</string>
     <string name="skip_cpu_inner_invalidation">跳過 CPU 內部失效處理</string>
     <string name="skip_cpu_inner_invalidation_description">在記憶體更新期間跳過某些 CPU 端快取的失效處理，減少 CPU 使用率並提高其性能。可能會導致某些遊戲出現故障或當機</string>
-    <string name="nce_invalidation_gpu_readback">在 NCE 無效化前進行 GPU 回讀</string>
-    <string name="nce_invalidation_gpu_readback_description">（暫時性功能）修復 \"終結者瑪格諾莉亞：霧中綻放\" 及其它使用虛幻引擎之遊戲中的當機問題，可能會降低效能。此功能正在改善中</string>
     <string name="fix_bloom_effects">修正光暈特效</string>
     <string name="fix_bloom_effects_description">在 \"薩爾達傳說：織夢島\" 和 \"薩爾達傳說：智慧的再現\" 中減少光暈模糊的問題並移除 \"橫衝直撞：狂飆樂園重製版\" 中的光暈效果（適用於 Adreno A6XX - A7XX/ Turnip）。警告：可能會在其它遊戲中導致圖形異常</string>
     <string name="emulate_bgr565">模擬 BGR565</string>
diff --git a/src/android/app/src/main/res/values/strings.xml b/src/android/app/src/main/res/values/strings.xml
index 191506c818..33e1eaa340 100644
--- a/src/android/app/src/main/res/values/strings.xml
+++ b/src/android/app/src/main/res/values/strings.xml
@@ -593,8 +593,6 @@
     <string name="fast_gpu_time_description">Makes the game believe GPU work finishes faster than it does, so it stops lowering resolution and render distance to fit the Switch\'s clocks.</string>
     <string name="skip_cpu_inner_invalidation">Skip CPU Inner Invalidation</string>
     <string name="skip_cpu_inner_invalidation_description">Skips certain CPU-side cache invalidations during memory updates, reducing CPU usage and improving it\'s performance. This may cause glitches or crashes on some games.</string>
-    <string name="nce_invalidation_gpu_readback">GPU Readback Before NCE Invalidation</string>
-    <string name="nce_invalidation_gpu_readback_description">Temporary. Fix Ender Magnolia (and other UE titles) crashes. May reduce performance. Improvement in progress.</string>
     <string name="fix_bloom_effects">Fix Bloom Effects</string>
     <string name="fix_bloom_effects_description">Reduces bloom blur in LA/EOW (Adreno A6XX - A7XX/ Turnip), removes bloom in Burnout. Warning: may cause graphical artifacts in other games.</string>
     <string name="emulate_bgr565">Emulate BGR565</string>
diff --git a/src/common/settings.h b/src/common/settings.h
index d1f891607b..b57bec5c12 100644
--- a/src/common/settings.h
+++ b/src/common/settings.h
@@ -639,8 +639,6 @@ struct Values {
                                                         Specialization::Default,
                                                         true,
                                                         true};
-    SwitchableSetting<bool> nce_invalidation_gpu_readback{
-        linkage, false, "nce_invalidation_gpu_readback", Category::RendererHacks};
     SwitchableSetting<bool> async_presentation{linkage,
 #ifdef __ANDROID__
                                                true,
diff --git a/src/qt_common/config/shared_translation.cpp b/src/qt_common/config/shared_translation.cpp
index 09e64b98f0..bb92d896f8 100644
--- a/src/qt_common/config/shared_translation.cpp
+++ b/src/qt_common/config/shared_translation.cpp
@@ -194,10 +194,6 @@ std::unique_ptr<TranslationMap> InitializeTranslations(QObject* parent) {
     INSERT(Settings, skip_cpu_inner_invalidation, tr("Skip CPU Inner Invalidation"),
            tr("Skips certain cache invalidations during memory updates, reducing CPU usage and "
               "improving latency. This may cause soft-crashes."));
-    INSERT(Settings, nce_invalidation_gpu_readback,
-           tr("GPU Readback Before NCE Invalidation"),
-           tr("Flushes GPU buffer data back to guest memory before NCE invalidates the whole "
-              "guest page, preserving it while the CPU store proceeds."));
     INSERT(Settings, vsync_mode, tr("VSync Mode:"),
            tr("FIFO (VSync) does not drop frames or exhibit tearing but is limited by the screen "
               "refresh rate.\nFIFO Relaxed allows tearing as it recovers from a slow down.\n"
diff --git a/src/video_core/gpu.cpp b/src/video_core/gpu.cpp
index 4e36d086e6..1621b24125 100644
--- a/src/video_core/gpu.cpp
+++ b/src/video_core/gpu.cpp
@@ -227,17 +227,17 @@ struct GPU::Impl {
 
     /// Notify rasterizer that any caches of the specified region should be invalidated
     void InvalidateRegion(DAddr addr, u64 size, bool preserve_gpu_writes) {
-        if (Settings::values.nce_invalidation_gpu_readback.GetValue()) {
+        if (preserve_gpu_writes) {
             VideoCore::RasterizerInterface* rasterizer = renderer->ReadRasterizer();
-            if (preserve_gpu_writes && rasterizer->MustFlushRegion(addr, size, VideoCommon::CacheType::BufferCache)) {
+            if (!rasterizer->TryCacheInvalidation(addr, size)) {
                 const u64 fence = RequestSyncOperation([rasterizer, addr, size] {
                     rasterizer->FlushRegion(addr, size, VideoCommon::CacheType::BufferCache);
                     rasterizer->OnCacheInvalidation(addr, size);
                 });
                 gpu_thread.TickGPU(is_async);
                 WaitForSyncOperation(fence);
-                return;
             }
+            return;
         }
         gpu_thread.InvalidateRegion(addr, size);
     }
diff --git a/src/video_core/rasterizer_interface.h b/src/video_core/rasterizer_interface.h
index 481efbf53b..b527c0e2a9 100644
--- a/src/video_core/rasterizer_interface.h
+++ b/src/video_core/rasterizer_interface.h
@@ -1,3 +1,6 @@
+// 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
 
@@ -111,6 +114,12 @@ public:
     /// Notify rasterizer that any caches of the specified region are desync with guest
     virtual void OnCacheInvalidation(PAddr addr, u64 size) = 0;
 
+    virtual bool TryCacheInvalidation(DAddr addr, u64 size) {
+        if (MustFlushRegion(addr, size, VideoCommon::CacheType::BufferCache)) return false;
+        OnCacheInvalidation(addr, size);
+        return true;
+    }
+
     virtual bool OnCPUWrite(PAddr addr, u64 size) = 0;
 
     /// Sync memory between guest and host.
diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
index f43bea1220..264ffb28b5 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
@@ -798,6 +798,18 @@ void RasterizerVulkan::OnCacheInvalidation(DAddr addr, u64 size) {
     pipeline_cache.InvalidateRegion(addr, size);
 }
 
+bool RasterizerVulkan::TryCacheInvalidation(DAddr addr, u64 size) {
+    if (addr == 0 || size == 0) return true;
+    {
+        std::scoped_lock lock{buffer_cache.mutex, texture_cache.mutex};
+        if (buffer_cache.IsRegionGpuModified(addr, size)) return false;
+        texture_cache.WriteMemory(addr, size);
+        buffer_cache.WriteMemory(addr, size);
+    }
+    pipeline_cache.InvalidateRegion(addr, size);
+    return true;
+}
+
 void RasterizerVulkan::InvalidateGPUCache() {
     gpu.InvalidateGPUCache();
 }
diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.h b/src/video_core/renderer_vulkan/vk_rasterizer.h
index 7470aa4f14..ae9929ca0b 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.h
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.h
@@ -106,6 +106,7 @@ public:
                           VideoCommon::CacheType which = VideoCommon::CacheType::All) override;
     void InnerInvalidation(std::span<const std::pair<DAddr, std::size_t>> sequences) override;
     void OnCacheInvalidation(DAddr addr, u64 size) override;
+    bool TryCacheInvalidation(DAddr addr, u64 size) override;
     bool OnCPUWrite(DAddr addr, u64 size) override;
     void InvalidateGPUCache() override;
     void UnmapMemory(DAddr addr, u64 size) override;

From 5239cbe2a78d6533e3541a71c4d3c723818dcb6e Mon Sep 17 00:00:00 2001
From: xbzk <xbzk@eden-emu.dev>
Date: Mon, 26 Oct 2026 17:24:45 +0100
Subject: [PATCH 08/13] [nce] handles duplicate NCE interrupts (#4530)

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md).
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------
Another crash observed in Ender Magnolia: A deadlock caused between CPUCore_0/GPU/GPUFencingThread.

CPUCore_0 waits for GPU work inside the NCE fault handler
GPU waits for the syncpoint mutex
GPUFencingThread holds that mutex while waiting for CPUCore_0 NCE interrupt lock

The fix makes duplicate interrupts return before acquiring the lock, while the first request keeps its original behavior.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4530
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
---
 src/core/arm/nce/arm_nce.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/arm/nce/arm_nce.cpp b/src/core/arm/nce/arm_nce.cpp
index 63d5638fce..438dd4d981 100644
--- a/src/core/arm/nce/arm_nce.cpp
+++ b/src/core/arm/nce/arm_nce.cpp
@@ -369,8 +369,8 @@ void ArmNce::SetContext(const Kernel::Svc::ThreadContext& ctx) {
 }
 
 void ArmNce::SignalInterrupt(Kernel::KThread* thread) {
-    // Add break loop condition.
-    m_guest_ctx.esr_el1.fetch_or(static_cast<u64>(HaltReason::BreakLoop));
+    constexpr u64 break_loop = static_cast<u64>(HaltReason::BreakLoop);
+    if ((m_guest_ctx.esr_el1.fetch_or(break_loop) & break_loop) != 0) return;
 
     auto* params = &thread->GetNativeExecutionParameters();
     LockThreadParameters(params);

From a3debcf731143aabd6eefee406d511551d3c9a73 Mon Sep 17 00:00:00 2001
From: PavelBARABANOV <pavelbarabanov94@gmail.com>
Date: Mon, 26 Oct 2026 17:25:24 +0100
Subject: [PATCH 09/13] [buffer_cashe] use old logic when Optimized Vertex
 Buffers is disabled (#4528)

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md)
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------
Fixes vertex explosions on Turnip. Fixes Celeste on QCOM. Fixes new issues discovered after #3579

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4528
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
---
 src/video_core/buffer_cache/buffer_cache.h | 82 +++++++++++++++-------
 1 file changed, 55 insertions(+), 27 deletions(-)

diff --git a/src/video_core/buffer_cache/buffer_cache.h b/src/video_core/buffer_cache/buffer_cache.h
index 53addb5dec..f30c85911f 100644
--- a/src/video_core/buffer_cache/buffer_cache.h
+++ b/src/video_core/buffer_cache/buffer_cache.h
@@ -1738,36 +1738,64 @@ void BufferCache<P>::TouchBuffer(Buffer& buffer, BufferId buffer_id) noexcept {
 
 template <class P>
 bool BufferCache<P>::SynchronizeBuffer(Buffer& buffer, DAddr device_addr, u32 size) {
-    upload_copies.clear();
-    u64 total_size_bytes = 0;
-    u64 largest_copy = 0;
-    const DAddr buffer_start = buffer.cpu_addr_cached;
-    const auto add_upload = [&](DAddr start, DAddr end) {
-        if (start == end) return;
-        const u64 range_size = end - start;
-        upload_copies.push_back(BufferCopy{
-            .src_offset = total_size_bytes,
-            .dst_offset = start - buffer_start,
-            .size = range_size,
+#ifdef __ANDROID__
+    const bool use_optimized_vertex_buffers = Settings::values.use_optimized_vertex_buffers.GetValue();
+#else
+    constexpr bool use_optimized_vertex_buffers = true;
+#endif
+
+    if (use_optimized_vertex_buffers) {
+        upload_copies.clear();
+        u64 total_size_bytes = 0;
+        u64 largest_copy = 0;
+        const DAddr buffer_start = buffer.cpu_addr_cached;
+        const auto add_upload = [&](DAddr start, DAddr end) {
+            if (start == end) return;
+            const u64 range_size = end - start;
+            upload_copies.push_back(BufferCopy{
+                .src_offset = total_size_bytes,
+                .dst_offset = start - buffer_start,
+                .size = range_size,
+            });
+            total_size_bytes += range_size;
+            largest_copy = (std::max)(largest_copy, range_size);
+        };
+        memory_tracker.ForEachUploadRange(device_addr, size, [&](u64 device_addr_out, u64 range_size) {
+            DAddr upload_start = device_addr_out;
+            gpu_modified_ranges.ForEachInRange(device_addr_out, range_size, [&](DAddr gpu_start, DAddr gpu_end) {
+                add_upload(upload_start, gpu_start);
+                upload_start = gpu_end;
+            });
+            add_upload(upload_start, device_addr_out + range_size);
         });
-        total_size_bytes += range_size;
-        largest_copy = (std::max)(largest_copy, range_size);
-    };
-    memory_tracker.ForEachUploadRange(device_addr, size, [&](u64 device_addr_out, u64 range_size) {
-        DAddr upload_start = device_addr_out;
-        gpu_modified_ranges.ForEachInRange(device_addr_out, range_size, [&](DAddr gpu_start, DAddr gpu_end) {
-            add_upload(upload_start, gpu_start);
-            upload_start = gpu_end;
+        if (total_size_bytes == 0) {
+            return true;
+        }
+        const std::span<BufferCopy> copies_span(upload_copies.data(), upload_copies.size());
+        UploadMemory(buffer, total_size_bytes, largest_copy, copies_span);
+        any_buffer_uploaded = true;
+        return false;
+    } else {
+        boost::container::small_vector<BufferCopy, 4> copies;
+        u64 total_size_bytes = 0;
+        u64 largest_copy = 0;
+        DAddr buffer_start = buffer.CpuAddr();
+        memory_tracker.ForEachUploadRange(device_addr, size, [&](u64 device_addr_out, u64 range_size) {
+            copies.push_back(BufferCopy{
+                .src_offset = total_size_bytes,
+                .dst_offset = device_addr_out - buffer_start,
+                .size = range_size,
+            });
+            total_size_bytes += range_size;
+            largest_copy = (std::max)(largest_copy, range_size);
         });
-        add_upload(upload_start, device_addr_out + range_size);
-    });
-    if (total_size_bytes == 0) {
-        return true;
+        if (total_size_bytes == 0) {
+            return true;
+        }
+        const std::span<BufferCopy> copies_span(copies.data(), copies.size());
+        UploadMemory(buffer, total_size_bytes, largest_copy, copies_span);
+        return false;
     }
-    const std::span<BufferCopy> copies_span(upload_copies.data(), upload_copies.size());
-    UploadMemory(buffer, total_size_bytes, largest_copy, copies_span);
-    any_buffer_uploaded = true;
-    return false;
 }
 
 template <class P>

From cbd4cf2d8ce9b66936bff8a19be4715e770e0c71 Mon Sep 17 00:00:00 2001
From: John <john@eden-emu.dev>
Date: Mon, 26 Oct 2026 17:25:47 +0100
Subject: [PATCH 10/13] [hle][core] Hang Freeze Fix - Video Fixes - Revert
 Microsleep (#4316) (#4525)

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md)
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Credit: amicuchu
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

- Fixes Mario Strikers Intro Freezing from legacy.
- Microsleep no longer needed for Absolum Video freezing and other videos freezing.
- Revert `[service, nvhost] added machinery to allow microsleep between nvdec read requests to avoid guest panic in some games #4316`
- Tested with CPU/GPU decoding on Linux/Windows.
Special thanks to xbzk

<video src="/attachments/9f4a4494-78ee-4b65-ad26-628e83d5c83b" title="strikers" controls></video>

Co-authored-by: Your Name <John@John.localdomain>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4525
Reviewed-by: Maufeat <sahyno1996@gmail.com>
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
---
 src/core/core.cpp                             | 40 +++----------------
 src/core/core.h                               |  4 +-
 .../service/filesystem/fsp/fs_i_storage.cpp   | 12 ++++++
 .../hle/service/filesystem/fsp/fs_i_storage.h |  6 +++
 .../service/nvdrv/devices/nvhost_nvdec.cpp    | 11 +----
 src/core/hle/service/service.cpp              | 16 +-------
 src/core/hle/service/service.h                |  2 -
 7 files changed, 28 insertions(+), 63 deletions(-)

diff --git a/src/core/core.cpp b/src/core/core.cpp
index 046ee53346..06543b0833 100644
--- a/src/core/core.cpp
+++ b/src/core/core.cpp
@@ -4,7 +4,6 @@
 #include <array>
 #include <atomic>
 #include <memory>
-#include <unordered_map>
 #include <utility>
 
 #include "game_settings.h"
@@ -249,30 +248,12 @@ struct System::Impl {
         }
     }
 
-    void NotifyNVDECChannelOpen(u64 process_id) {
-        std::scoped_lock lock{nvdec_active_mutex};
-        ++nvdec_active_channels[process_id];
-    }
-
-    void NotifyNVDECChannelClose(u64 process_id) {
-        std::scoped_lock lock{nvdec_active_mutex};
-        const auto it = nvdec_active_channels.find(process_id);
-        if (it == nvdec_active_channels.end()) {
-            return;
-        }
-        if (--it->second == 0) {
-            nvdec_active_channels.erase(it);
-        }
+    void SetNVDECActive(bool is_nvdec_active) {
+        nvdec_active = is_nvdec_active;
     }
 
     bool GetNVDECActive() {
-        std::scoped_lock lock{nvdec_active_mutex};
-        return !nvdec_active_channels.empty();
-    }
-
-    bool IsNVDECActiveForProcess(u64 process_id) {
-        std::scoped_lock lock{nvdec_active_mutex};
-        return nvdec_active_channels.contains(process_id);
+        return nvdec_active;
     }
 
     void InitializeDebugger(System& system, u16 port) {
@@ -528,8 +509,6 @@ struct System::Impl {
 
     mutable std::mutex suspend_guard;
     std::mutex general_channel_mutex;
-    std::mutex nvdec_active_mutex;
-    std::unordered_map<u64, u32> nvdec_active_channels;
     std::atomic_bool is_paused{};
     std::atomic_bool is_shutting_down{};
     std::atomic_bool is_powered_on{};
@@ -537,6 +516,7 @@ struct System::Impl {
     bool extended_memory_layout : 1 = false;
     bool exit_locked : 1 = false;
     bool exit_requested : 1 = false;
+    bool nvdec_active : 1 = false;
 
     void EnsureGeneralChannelInitialized(System& system) {
         if (!general_channel_event) {
@@ -600,22 +580,14 @@ void System::UnstallApplication() {
     impl->UnstallApplication();
 }
 
-void System::NotifyNVDECChannelOpen(u64 process_id) {
-    impl->NotifyNVDECChannelOpen(process_id);
-}
-
-void System::NotifyNVDECChannelClose(u64 process_id) {
-    impl->NotifyNVDECChannelClose(process_id);
+void System::SetNVDECActive(bool is_nvdec_active) {
+    impl->SetNVDECActive(is_nvdec_active);
 }
 
 bool System::GetNVDECActive() {
     return impl->GetNVDECActive();
 }
 
-bool System::IsNVDECActiveForProcess(u64 process_id) {
-    return impl->IsNVDECActiveForProcess(process_id);
-}
-
 void System::InitializeDebugger() {
     impl->InitializeDebugger(*this, Settings::values.gdbstub_port.GetValue());
 }
diff --git a/src/core/core.h b/src/core/core.h
index e26093f260..d88ed64151 100644
--- a/src/core/core.h
+++ b/src/core/core.h
@@ -191,10 +191,8 @@ public:
     std::unique_lock<std::mutex> StallApplication();
     void UnstallApplication();
 
-    void NotifyNVDECChannelOpen(u64 process_id);
-    void NotifyNVDECChannelClose(u64 process_id);
+    void SetNVDECActive(bool is_nvdec_active);
     [[nodiscard]] bool GetNVDECActive();
-    [[nodiscard]] bool IsNVDECActiveForProcess(u64 process_id);
 
     /**
      * Initialize the debugger.
diff --git a/src/core/hle/service/filesystem/fsp/fs_i_storage.cpp b/src/core/hle/service/filesystem/fsp/fs_i_storage.cpp
index 50b7d1e765..8541c17817 100644
--- a/src/core/hle/service/filesystem/fsp/fs_i_storage.cpp
+++ b/src/core/hle/service/filesystem/fsp/fs_i_storage.cpp
@@ -4,6 +4,10 @@
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include <algorithm>
+#include <chrono>
+#include <thread>
+
 #include "core/file_sys/errors.h"
 #include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/filesystem/fsp/fs_i_storage.h"
@@ -31,6 +35,14 @@ Result IStorage::Read(
     R_UNLESS(length >= 0, FileSys::ResultInvalidSize);
     R_UNLESS(offset >= 0, FileSys::ResultInvalidOffset);
 
+    const auto now = std::chrono::steady_clock::now();
+    if (now < next_read_tick) {
+        std::this_thread::sleep_for(next_read_tick - now);
+    }
+    next_read_tick = std::chrono::steady_clock::now() +
+                     std::chrono::nanoseconds{std::min(length, MaxChargedReadSize) *
+                                              1'000'000'000 / ReadBytesPerSecond};
+
     // Read the data from the Storage backend
     backend->Read(out_bytes.data(), length, offset);
 
diff --git a/src/core/hle/service/filesystem/fsp/fs_i_storage.h b/src/core/hle/service/filesystem/fsp/fs_i_storage.h
index e676c52220..bac72d73c7 100644
--- a/src/core/hle/service/filesystem/fsp/fs_i_storage.h
+++ b/src/core/hle/service/filesystem/fsp/fs_i_storage.h
@@ -6,6 +6,8 @@
 
 #pragma once
 
+#include <chrono>
+
 #include "core/file_sys/vfs/vfs.h"
 #include "core/hle/service/cmif_types.h"
 #include "core/hle/service/filesystem/filesystem.h"
@@ -20,6 +22,10 @@ public:
 private:
     FileSys::VirtualFile backend;
 
+    static constexpr s64 ReadBytesPerSecond = 40'000'000;
+    static constexpr s64 MaxChargedReadSize = 64 * 1024;
+    std::chrono::steady_clock::time_point next_read_tick{};
+
     Result Read(
         OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_bytes,
         s64 offset, s64 length);
diff --git a/src/core/hle/service/nvdrv/devices/nvhost_nvdec.cpp b/src/core/hle/service/nvdrv/devices/nvhost_nvdec.cpp
index f47369adb8..7ac3dfaa46 100644
--- a/src/core/hle/service/nvdrv/devices/nvhost_nvdec.cpp
+++ b/src/core/hle/service/nvdrv/devices/nvhost_nvdec.cpp
@@ -8,7 +8,6 @@
 #include "common/assert.h"
 #include "common/logging.h"
 #include "core/core.h"
-#include "core/hle/kernel/k_process.h"
 #include "core/hle/service/nvdrv/core/container.h"
 #include "core/hle/service/nvdrv/devices/ioctl_serialization.h"
 #include "core/hle/service/nvdrv/devices/nvhost_nvdec.h"
@@ -72,23 +71,17 @@ NvResult nvhost_nvdec::Ioctl3(DeviceFD fd, Ioctl command, std::span<const u8> in
 
 void nvhost_nvdec::OnOpen(NvCore::SessionId session_id, DeviceFD fd) {
     LOG_INFO(Service_NVDRV, "NVDEC video stream started");
+    system.SetNVDECActive(true);
     sessions[fd] = session_id;
-    if (const auto* session = core.GetSession(session_id);
-        session != nullptr && session->process != nullptr) {
-        system.NotifyNVDECChannelOpen(session->process->GetId());
-    }
     host1x.StartDevice(fd, Tegra::Host1x::ChannelType::NvDec, channel_syncpoint);
 }
 
 void nvhost_nvdec::OnClose(DeviceFD fd) {
     LOG_INFO(Service_NVDRV, "NVDEC video stream ended");
     host1x.StopDevice(fd, Tegra::Host1x::ChannelType::NvDec);
+    system.SetNVDECActive(false);
     auto it = sessions.find(fd);
     if (it != sessions.end()) {
-        if (const auto* session = core.GetSession(it->second);
-            session != nullptr && session->process != nullptr) {
-            system.NotifyNVDECChannelClose(session->process->GetId());
-        }
         sessions.erase(it);
     }
 }
diff --git a/src/core/hle/service/service.cpp b/src/core/hle/service/service.cpp
index 225b92a783..b4fe2b3ed5 100644
--- a/src/core/hle/service/service.cpp
+++ b/src/core/hle/service/service.cpp
@@ -4,16 +4,12 @@
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include <chrono>
 #include <fmt/ranges.h>
-#include <string_view>
-#include <thread>
 #include "common/assert.h"
 #include "common/logging.h"
 #include "common/settings.h"
 #include "core/core.h"
 #include "core/hle/ipc.h"
-#include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/service.h"
@@ -37,7 +33,6 @@ ServiceFrameworkBase::ServiceFrameworkBase(Core::System& system_, const char* se
     : SessionRequestHandler(system_.Kernel(), service_name_)
     , system{system_}
     , service_name{service_name_}
-    , is_i_storage{std::string_view{service_name_} == "IStorage"}
     , handler_invoker{handler_invoker_}
     , max_sessions{max_sessions_}
 {}
@@ -82,22 +77,13 @@ void ServiceFrameworkBase::ReportUnimplementedFunction(HLERequestContext& ctx,
 }
 
 void ServiceFrameworkBase::InvokeRequest(HLERequestContext& ctx) {
-    const auto command = ctx.GetCommand();
-    auto it = handlers.find(command);
-    const bool is_cmd_read = command == 0;
+    auto it = handlers.find(ctx.GetCommand());
     FunctionInfoBase const* info = it == handlers.end() ? nullptr : &it->second;
     if (info == nullptr || info->handler_callback == nullptr)
         return ReportUnimplementedFunction(ctx, info);
 
     LOG_TRACE(Service, "{}", MakeFunctionString(info->name, GetServiceName(), ctx.CommandBuffer()));
     handler_invoker(this, info->handler_callback, ctx);
-
-    if (is_i_storage && is_cmd_read) {
-        const auto* const process = ctx.GetThread().GetOwnerProcess();
-        if (process != nullptr && system.IsNVDECActiveForProcess(process->GetId())) {
-            std::this_thread::sleep_for(std::chrono::microseconds{600});
-        }
-    }
 }
 
 void ServiceFrameworkBase::InvokeRequestTipc(HLERequestContext& ctx) {
diff --git a/src/core/hle/service/service.h b/src/core/hle/service/service.h
index ea98897e79..68b0d636d8 100644
--- a/src/core/hle/service/service.h
+++ b/src/core/hle/service/service.h
@@ -107,8 +107,6 @@ protected:
     Core::System& system;
     /// Identifier string used to connect to the service.
     const char* service_name;
-    /// Whether this is the IStorage service.
-    const bool is_i_storage;
     /// Function used to safely up-cast pointers to the derived class before invoking a handler.
     InvokerFn* handler_invoker;
     /// Maximum number of concurrent sessions that this service can handle.

From b7c1ded1593c3c2dc58625824a04e30a63fe80c7 Mon Sep 17 00:00:00 2001
From: xbzk <xbzk@eden-emu.dev>
Date: Mon, 26 Oct 2026 17:26:07 +0100
Subject: [PATCH 11/13] [file_sys] added log for newer keys needed error
 (#4519)

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md)
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------
One log line which could have spared me from a lot of trouble.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4519
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
---
 src/core/file_sys/content_archive.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/core/file_sys/content_archive.cpp b/src/core/file_sys/content_archive.cpp
index b47b9437d0..1ba7bd3de3 100644
--- a/src/core/file_sys/content_archive.cpp
+++ b/src/core/file_sys/content_archive.cpp
@@ -45,6 +45,7 @@ NCA::NCA(VirtualFile file_, const NCA* base_nca, bool allow_missing_base)
     // Ensure we have the proper key area keys to continue.
     const u8 master_key_id = MasterKeyIdForKeyGeneration(reader->GetKeyGeneration());
     if (!keys.HasKey(Core::Crypto::S128KeyType::KeyArea, master_key_id, reader->GetKeyIndex())) {
+        LOG_ERROR(Loader, "Cannot decrypt {}: keys for gen 0x{:02X}+ required.", file->GetName(), reader->GetKeyGeneration());
         status = Loader::ResultStatus::ErrorMissingKeyAreaKey;
         return;
     }

From 26a03d2473787abf3223b2d0e65b291eee00c1e1 Mon Sep 17 00:00:00 2001
From: John <john@eden-emu.dev>
Date: Mon, 26 Oct 2026 17:26:32 +0100
Subject: [PATCH 12/13] Revert "[video_core] Improve asynchronous shader
 building (#2560)" (#4512)

Restores performance but need to check TOTK item icons and Jamboree graphic issues.

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md)
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4512
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
---
 src/video_core/renderer_opengl/gl_shader_cache.cpp   | 5 +++++
 src/video_core/renderer_vulkan/vk_pipeline_cache.cpp | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/src/video_core/renderer_opengl/gl_shader_cache.cpp b/src/video_core/renderer_opengl/gl_shader_cache.cpp
index df69eb97f5..277cf222fa 100644
--- a/src/video_core/renderer_opengl/gl_shader_cache.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_cache.cpp
@@ -414,6 +414,11 @@ GraphicsPipeline* ShaderCache::BuiltPipeline(GraphicsPipeline* pipeline) const n
     if (!use_asynchronous_shaders) {
         return pipeline;
     }
+    // If something is using depth, we can assume that games are not rendering anything which
+    // will be used one time.
+    if (maxwell3d->regs.zeta_enable) {
+        return nullptr;
+    }
     // If games are using a small index count, we can assume these are full screen quads.
     // Usually these shaders are only used once for building textures so we can assume they
     // can't be built async
diff --git a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
index e9403580d5..d4ffcd8317 100644
--- a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
+++ b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
@@ -789,6 +789,11 @@ GraphicsPipeline* PipelineCache::BuiltPipeline(GraphicsPipeline* pipeline) const
     if (!use_asynchronous_shaders) {
         return pipeline;
     }
+    // If something is using depth, we can assume that games are not rendering anything which
+    // will be used one time.
+    if (maxwell3d->regs.zeta_enable) {
+        return nullptr;
+    }
     // If games are using a small index count, we can assume these are full screen quads.
     // Usually these shaders are only used once for building textures so we can assume they
     // can't be built async

From a2aa4d97e10a8345babfe647e1abd5ed5909c623 Mon Sep 17 00:00:00 2001
From: crueter <crueter@eden-emu.dev>
Date: Thu, 29 Oct 2026 17:10:37 +0100
Subject: [PATCH 13/13] [docs] Remove AI restrictions, and adapt to new open
 registration (#4585)

Registration is now open. Enjoy

Signed-off-by: crueter <crueter@eden-emu.dev>

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4585
Reviewed-by: lizzie <lizzie@eden-emu.dev>
---
 .github/PULL_REQUEST_TEMPLATE.md |   1 -
 CONTRIBUTING.md                  |  39 ++----
 docs/policies/AI.md              | 203 -------------------------------
 3 files changed, 8 insertions(+), 235 deletions(-)
 delete mode 100644 docs/policies/AI.md

diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 422efb5fdc..bdf9d048e8 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -1,5 +1,4 @@
 - [ ] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
-- [ ] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md).
 - [ ] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.
 
 -------------------
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 8c16de9ddb..c87dd11dbe 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -16,15 +16,14 @@ Eden is free, open-source, copyleft software, licensed under the terms of the [G
 
 ### Policies
 
-- We are trialing a slightly relaxed AI policy to allow high-quality contributors to use AI *responsibly*. Please read our [detailed AI policy](docs/policies/AI.md) for more info.
-- Usage of any form of profanity or otherwise unsavory language is generally discouraged.
-  - This is primarily because it rarely helps to actually understand what's going on.
-  - Remember that your comments should be focused and actually address what's happening. With very few exceptions, expletives are actively detrimental at best.
-- New code must follow the same general style as the surrounding codebase. Exceptions may be granted in certain cases.
+- AI usage is allowed, but we reserve the right to close and rework your PR if you don't fully understand the changes you're making.
+  - As a common courtesy, please disclose your AI usage under the PR description, as `Assisted-by: <AI model> (<how it helped>)`.
+- Usage of any form of profanity or otherwise unsavory language is discouraged but not strictly disallowed.
+- New code must follow the same style as the surrounding codebase. Exceptions may be granted in certain cases.
 - Maintainers reserve the right to change your patches and pull requests at will. We will try to avoid this.
   - You should generally respect all decisions made by the [code owners](docs/CODEOWNERS) in your particular subsystem.
   - However, if you feel they are overstepping or are incorrect, don't be afraid to stand your ground! Maintainers are not always correct.
-- While we do *not* adhere to the terms of a formal code of conduct, you will generally be expected to respect other developers, contributors, and community members.
+- While we do *not* adhere to the terms of a formal code of conduct, you are expected to treat other developers, contributors, and community members respectfully.
 - You **must** have basic knowledge of [Git](https://git-scm.com/learn). Knowing how to manage your branches and follow proper fork policies is a necessity.
 
 ### Where do I start?
@@ -38,7 +37,8 @@ You may also search for open issues on [GitHub](https://github.com/eden-emulator
 There are five primary ways to contribute.
 
 - Submit pull requests directly to our source tree
-  - You must first request an account on our Forgejo. See [Signup](#how-do-i-sign-up)
+  - You must first [create an account](https://git.eden-emu.dev/user/sign_up).
+  - You may use an internal account, or you may use a GitHub/Codeberg account linked to our instance.
 - Submit pull requests to our [GitHub mirror](https://github.com/eden-emulator/Issue-Reports)
   - Note that this is subject to being removed by DMCA, so don't rely on this.
 - Submit pull requests to our [Codeberg mirror](https://codeberg.org/eden-emu/eden)
@@ -50,31 +50,8 @@ There are five primary ways to contribute.
 
 To test your changes, ensure to read the [build documentation](./docs/Build.md) for your specific platform(s) to ensure everything compiles and works properly. You should also make sure that your branch is up-to-date with the upstream `master` branch before opening a pull request.
 
-### How do I sign up?
-
-<details>
-<summary>To sign up and begin contributing... (click to open)</summary>
-
-Email [crueter@crueter.xyz](mailto:crueter@crueter.xyz) with the following format:
-
-```txt
-Subject: [Eden Git] Registration Request
-Username: <Your Desired Username>
-Email: <Your Desired Email>
-I wish to sign up because... <your reason here>
-```
-
-Received mail that does not follow this format will be ignored.
-
-Once your request is processed, you will receive a confirmation email with your temporary password and some information on Git access and policies. If you do not receive a response within 48 hours, feel free to send another email.
-
-> [!WARNING]
-> Some email providers may place the response email in your spam/junk folder; notable offenders include Gmail and Outlook. *Always* ensure to check your Spam or Junk folder.
-
-</details>
-
 ## Non-code Contributions
 
 Alongside the other contribution methods listed up top, you can also choose to contribute through documentation, organization, or community guides. These can be done either through the code contribution methods described above, or created externally and shared via our Discord community.
 
-If you have an external tool/page that you believe would be handy to integrate/link into Eden, please additionally email our developers at [`developers@eden-emu.dev`](mailto:developers@eden-emu.dev). **Do not submit vibe-coded or AI generated tools or applications**.
+If you have an external tool/page that you believe would be handy to integrate/link into Eden, please additionally email our developers at [`developers@eden-emu.dev`](mailto:developers@eden-emu.dev).
diff --git a/docs/policies/AI.md b/docs/policies/AI.md
deleted file mode 100644
index dd4b4a7fb2..0000000000
--- a/docs/policies/AI.md
+++ /dev/null
@@ -1,203 +0,0 @@
-# AI Policy
-
-> [!WARNING]
-> We are trialing a slightly relaxed AI policy to allow high-quality contributors to use AI *responsibly*.
-> This policy is subject to change at any point in time, so check back frequently.
->
-> This banner will be removed once we have finalized our revised policy.
-
-- [AI Policy](#ai-policy)
-  - [TL;DR](#tldr)
-  - [Definitions](#definitions)
-  - [Scope](#scope)
-  - [Introduction](#introduction)
-  - [Requirements](#requirements)
-  - [Sign-off, Authorship, and Copyright](#sign-off-authorship-and-copyright)
-  - [Permitted Usage](#permitted-usage)
-  - [Recommended Prior Discussion](#recommended-prior-discussion)
-  - [Forbidden Usage](#forbidden-usage)
-  - [Human Effort Denial of Service](#human-effort-denial-of-service)
-  - [Disclosure](#disclosure)
-  - [Codebase Ingestion](#codebase-ingestion)
-  - [Enforcement](#enforcement)
-  - [Addendum: AI Commit Messages](#addendum-ai-commit-messages)
-  - [References](#references)
-
-## TL;DR
-
-AI-assisted contributions are welcome, provided you take responsibility for them.
-
-- You **must** disclose any AI or LLM usage in your pull request description *and* commit message.
-- You **must** be able to explain, defend, and revise every line of code you submit.
-- Commit messages, PR descriptions, issues, and comments **must** be written by you. Verbatim AI output is not acceptable.
-- Undisclosed AI usage will result in your contribution being rejected.
-- Low-quality contributions, disclosed or not, will be reworked or rejected.
-- Spamming automated PRs, comments, or issues is treated as a Denial of Service (DoS) attack on our reviewers; see [Human Effort Denial of Service](#human-effort-denial-of-service).
-
-## Definitions
-
-An *AI or LLM-based tool* is any piece of software that generates code, text, or other content through machine learning models. This includes, but is not limited to: chat assistants, agentic coding tools/harnesses, inline code completion suggestions you have accepted into the code, and AI-driven explanation/refactoring features.
-
-For the purposes of this policy, basic deterministic/static development tools (such as clang-tidy, git, compilers, etc.) are not considered AI tools.
-
-Terms such as "substantially", "large-scale", "majority", and "low-quality" are intentionally left vague, and will be interpreted at the maintainers' discretion. When in doubt, ask first.
-
-## Scope
-
-This policy applies to all code contributions, alongside issues and pull requests surrounding this codebase. This includes:
-
-- Commit messages
-- PR descriptions
-- Code review comments
-- Issue/PR comments
-- Patches submitted via e-mail
-
-Areas that are not directly related to code--such as our surrounding communities--are not covered by the terms of this policy. Additionally, spelling/grammar checking via AI or LLM-based tools is not covered under this document.
-
-## Introduction
-
-In the right hands, AI and LLM-based tools are incredibly useful for getting features and bugfixes out the door as fast as possible. At the same time, reviewer bandwidth is a scarce resource. We are therefore open to AI-assisted contributions, provided they are produced and disclosed properly.
-
-The goal of this document is *not* to set arbitrary restrictions, but rather to keep our development healthy and stable, while still allowing contributors to use the tools they find helpful. A contribution must be worth more to the project than the time it takes to review it.
-
-Throughout this document, **must** and **must not** are inflexible, binding requirements. Refusal to follow these is treated as a violation of the terms outlined in this document.
-
-## Requirements
-
-These apply to all contributions, whether AI-assisted or not. AI-assisted contributions also carry additional disclosure requirements as outlined in [Disclosure](#disclosure).
-
-1. *Disclosure*. Any and all usage of AI or LLM-based tools within any contribution **must** be explicitly marked and disclosed as appropriate.
-2. *Responsibility*. The human submitter of any contribution is held wholly responsible for the accuracy, completeness, and intent of what is submitted. You **must** be able to explain, defend, and revise your code during review.
-3. *Review*. All code **must** be thoroughly reviewed by the author before opening a PR or marking it ready for review.
-4. *Testing*. All code changes **must** be tested directly by the human author.
-5. *Quality*. All submitted code is held to a strict standard of excellence. Low-quality AI-generated content does not uphold this standard.
-6. *Licensing*. All code **must** be compatible with the GPLv3 or later. You **must** warrant that you have the right to submit it under those terms, and that it was not copied from work published under an incompatible license.
-
-## Sign-off, Authorship, and Copyright
-
-AI agents **must not** add `Signed-off-by:` tags. The human submitter **must** sign off on all changes.
-
-Similarly, AI agents cannot hold authorship or copyright over code, and **must not** add `Co-authored-by:` or `Co-developed-by:` tags. The human submitter **must** author all changes.
-
-## Permitted Usage
-
-This is a non-exhaustive list of permitted uses of AI and LLM-based tools, provided they are disclosed properly.
-
-- Drafting issues and pull requests, provided the final text and submitted code are substantially your own.
-- Debugging issues, bugs, glitches, and crashes, whether pre-existing or introduced by your own changes.
-- Reviewing your own changes before submitting a PR.
-- Research, brainstorming, and codebase searching/understanding.
-- Applying tedious but not particularly large changes, such as mass-migrating specific classes to polyfills or abstractions.
-
-## Recommended Prior Discussion
-
-Some usage cases are not necessarily forbidden nor permitted. These should be discussed with maintainers in an issue or e-mail *before* submission. Maintainers and reviewers may also comment on this during the review/submission phase.
-
-- Generating boilerplate/scaffolding for new code.
-- Writing unit tests.
-- Large-scale refactors primarily driven by an AI agent.
-- Any contribution where an AI agent or model was responsible for the majority of the implementation.
-
-## Forbidden Usage
-
-This is a non-exhaustive list of strictly forbidden uses of AI and LLM-based tools.
-
-- Vibecoding, or changes entirely authored by AI agents without human intervention or understanding.
-  - If you don't choose to put in the necessary effort to understand every line of code you submitted, neither will we.
-- Fully AI-generated commit messages, PR descriptions, issues, or comments. See [Addendum: AI Commit Messages](#addendum-ai-commit-messages).
-- Submission of AI-assisted work that is not disclosed per the [Disclosure](#disclosure) requirements.
-- Low-quality submissions that fail to satisfy our standard of code excellence.
-- Submitting secrets, credentials, private user data, or unpublished security reports to third-party AI services.
-  - This includes console keys, encryption material, and private vulnerability disclosures.
-- Verbatim AI code reviews (e.g. Codex/Copilot reviews).
-
-## Human Effort Denial of Service
-
-Using automated tools and AI to submit PRs, issues, and comments that we have to carefully review and handle is considered a [Denial-of-service attack](https://en.wikipedia.org/wiki/Denial-of-service_attack) on our human effort.
-
-It takes very little effort on your side (an LLM prompt) to generate a large amount of effort on ours (careful and thorough code review). Please respect our time and don't do that.
-
-## Disclosure
-
-How you disclose AI usage is up to you. However, it **must** be explicit, easy to identify, and placed both within the commit message *and* the surrounding PR description. For patches submitted by e-mail, the cover letter counts as the PR description. We recommend an `Assisted-by:` footer:
-
-```txt
-Assisted-by: <model> (<what it was used for>)
-```
-
-For instance:
-
-```txt
-Assisted-by: Claude Opus 5.5 (initial draft and code review)
-```
-
-Contributions without a commit message (e.g. issues/comments) should instead use a plain sentence in the text body such as `I used <model> to help with <X>`. PRs and commit messages may opt to use this format as well.
-
-Multi-commit series/squashes **must** maintain the trailer. Maintainers will handle this for merges to master, but you are responsible for ensuring the disclosure survives into the final commit/PR body of squashes within your branches.
-
-Regardless, what matters is that reviewers can tell *at a glance* where and how AI was involved in your contribution.
-
-## Codebase Ingestion
-
-Ingestion of this codebase by LLMs for any purpose--such as training or prompt context--is permitted *for now*. This may change at any point as litigation and court rulings around AI and code copyright proceed.
-
-AI models may have ingested AGPLv3 or otherwise copyleft-incompatible code and may regurgitate it. You remain responsible for ensuring that all code you submit is compatible with the GPLv3 or later.
-
-## Enforcement
-
-- If we suspect undisclosed AI usage in a contribution, we will ask for disclosure.
-- Refusal to provide disclosure will result in rejection of the contribution, and your PR or issue will be closed. Maintainers may choose to rework it themselves if the change is worth having.
-- Accounts that spam us with repeated automated PRs or comments will be blocked or permanently suspended from our Git instance.
-- Maintainers reserve the right to close your issues and pull requests if you don't follow the guidelines and procedures outlined in this document, and refuse or fail to make changes as necessary to comply.
-- Repeated failures to comply may result in loss of contribution privileges.
-
-## Addendum: AI Commit Messages
-
-The patchset for pull request [#3422](https://git.eden-emu.dev/eden-emu/eden/pulls/3422) was fed into a dedicated code AI model, and it produced the following:
-
-```txt
-profile_manager: Refactor user deletion to use index instead of UUID
-
-This commit improves the user profile deletion flow in the following ways:
-
-1. **UI layer (ConfigureProfileManager)**:
-   - Replaces UUID-based deletion with index-based deletion
-   - Passes the selected row index from the tree view to the confirmation dialog
-   - Emits deleteUser(int index) signal from ConfigureProfileManagerDeleteDialog
-   - Removes lambda capture and std::function callback in favor of direct signal/slot connection
-
-2. **Delete dialog**:
-   - Changes SetInfo() signature to accept index instead of accept callback
-   - Stores index internally and emits it via deleteUser signal on acceptance
-
-3. **Core ProfileManager**:
-   - Refactors RemoveUser(UUID) → RemoveProfileAtIndex(index)
-   - Removes duplicated stable_partition + save logic from RemoveUser()
-   - Centralizes profile removal and save-file writing in RemoveProfileAtIndex()
-
-4. **Minor follow-up**:
-   - Adds profile_manager.ResetUserSaveFile() call in PopulateUserList() to ensure consistent state when refreshing the user list
-
-These changes eliminate redundant code, reduce the risk of UUID → index mismatch bugs, and make the deletion path more straightforward and maintainable.
-
-Fixes: potential inconsistency when user order changes between UI and backend
-```
-
-This:
-
-- Is needlessly verbose (nobody cares about most of these details)
-- Doesn't address the actual purpose of the PR (fixing a double-deletion bug in the profile manager)
-- Has unicode arrows (this is bad for command-line editors)
-- Uses corporate and word-salad language that pads out the message to make it look like a lot changed
-
-A good commit message should be concise, descriptive, and convey the *intent* behind the change, such as the bug being fixed or the feature being added. It should *not* be a detailed changelog of every individual byte that's changed.
-
-## References
-
-This policy document has been adapted from the AI policies of numerous other free and open-source projects, whether restrictive or permissive.
-
-- [Gitea](https://github.com/go-gitea/gitea/blob/main/CONTRIBUTING.md#ai-contribution-policy)
-- The [Linux kernel](https://kernel.org/doc/html/next/process/coding-assistants.html)
-- [Gentoo Linux](https://wiki.gentoo.org/wiki/Project:Council/AI_policy)
-- [cURL](https://curl.se/dev/contribute.html#on-ai-use-in-curl)
-- [FastAPI](https://tiangolo.com/open-source/contributing/#automated-code-and-ai)