[sceAudio] added basic audio output support

- Enable VertexPipelineStoresAndAtomics/FragmentStoresAndAtomics:
  fixes vkCreateGraphicsPipelines() rejecting guestBuffers storage
  descriptor as NonWritable in vertex/fragment stages.
- Enable ShaderInt64: fixes vkCreateShaderModule() rejecting SPIR-V
  using 64-bit integer capability.
- Query GetPhysicalDeviceFeatures first and only enable what the GPU
  actually reports as supported, with a warning fallback otherwise.

Also adds optional Vulkan Validation Layers (SHARPEMU_VK_VALIDATION=1)
to surface these VUID errors during development instead of silent
VK_ERROR_DEVICE_LOST.

.editorconfig

@@ -14,7 +14,7 @@ indent_size = 4
 indent_style = space
 tab_width = 4
 
-[*.{md,json,yml,props,csproj}]
+[*.{md,json,yml,xml,props,csproj}]
 
 indent_size = 2
 tab_width = 2

.github/workflows/workflow.yml

@@ -126,7 +126,7 @@ jobs:
     needs:
       - init
       - build
-    if: github.event_name == 'push' || github.event_name == 'workflow_dispatch'
+    if: github.event_name == 'workflow_dispatch' || (github.event_name == 'push' && github.ref == 'refs/heads/main')
     runs-on: ubuntu-latest
     permissions:
       contents: write

.gitignore

@@ -26,6 +26,7 @@ arm64/
 *.userosscache
 *.sln.docstates
 
+.packages
 packages/
 *.nupkg
 .nuget/

Directory.Packages.props

@@ -2,7 +2,6 @@
 Copyright (C) 2026 SharpEmu Emulator Project
 SPDX-License-Identifier: GPL-2.0-or-later
 -->
-
 <Project>
   <PropertyGroup>
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
@@ -10,6 +9,7 @@ SPDX-License-Identifier: GPL-2.0-or-later
   <ItemGroup>
     <PackageVersion Include="Iced" Version="1.21.0" />
     <PackageVersion Include="Silk.NET.Vulkan" Version="2.23.0" />
+    <PackageVersion Include="Silk.NET.Vulkan.Extensions.EXT" Version="2.23.0" />
     <PackageVersion Include="Silk.NET.Vulkan.Extensions.KHR" Version="2.23.0" />
     <PackageVersion Include="Silk.NET.Windowing" Version="2.23.0" />
   </ItemGroup>

REUSE.toml

@@ -3,12 +3,14 @@ version = 1
 [[annotations]]
 path = [
     "REUSE.toml",
+    "nuget.config",
     "global.json",
     "**/packages.lock.json",
     "scripts/ps5_names.txt",
     "src/SharpEmu.HLE/Aerolib/aerolib.bin",
     "_logs/**",
-    ".github/images/**"
+    ".github/images/**",
+    "assets/images/**"
 ]
 precedence = "aggregate"
 SPDX-FileCopyrightText = "SharpEmu Emulator Project"

nuget.config

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<configuration>
+  <config>
+    <add key="globalPackagesFolder" value=".packages" />
+  </config>
+
+  <packageSources>
+    <clear />
+    <add key="Nuget" value="https://api.nuget.org/v3/index.json" />
+  </packageSources>
+
+  <packageSourceMapping>
+    <packageSource key="Nuget">
+      <package pattern="*" />
+    </packageSource>
+  </packageSourceMapping>
+</configuration>

src/SharpEmu.CLI/SharpEmu.CLI.csproj

@@ -16,7 +16,7 @@ SPDX-License-Identifier: GPL-2.0-or-later
     <RuntimeIdentifiers>win-x64;linux-x64;osx-arm64</RuntimeIdentifiers>
     <SelfContained>true</SelfContained>
     <PublishSingleFile>true</PublishSingleFile>
-    <IncludeNativeLibrariesForSelfExtract>true</IncludeNativeLibrariesForSelfExtract>
+    <!-- <IncludeNativeLibrariesForSelfExtract>true</IncludeNativeLibrariesForSelfExtract> -->
     <EnableCompressionInSingleFile>true</EnableCompressionInSingleFile>
     <ImplicitUsings>enable</ImplicitUsings>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
@@ -30,6 +30,11 @@ SPDX-License-Identifier: GPL-2.0-or-later
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
   </PropertyGroup>
 
+  <PropertyGroup Condition="'$(RuntimeIdentifier)' == 'win-x64' Or '$(RuntimeIdentifier)' == ''">
+    <ApplicationIcon>..\..\assets\images\SharpEmu.ico</ApplicationIcon>
+    <Win32Icon>..\..\assets\images\SharpEmu.ico</Win32Icon>
+  </PropertyGroup>
+
   <ItemGroup>
     <Content Include="..\..\LICENSE.txt">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>

src/SharpEmu.CLI/packages.lock.json

@@ -81,6 +81,7 @@
         "dependencies": {
           "SharpEmu.HLE": "[1.0.0, )",
           "Silk.NET.Vulkan": "[2.23.0, )",
+          "Silk.NET.Vulkan.Extensions.EXT": "[2.23.0, )",
           "Silk.NET.Vulkan.Extensions.KHR": "[2.23.0, )",
           "Silk.NET.Windowing": "[2.23.0, )"
         }
@@ -103,6 +104,16 @@
           "Silk.NET.Core": "2.23.0"
         }
       },
+      "Silk.NET.Vulkan.Extensions.EXT": {
+        "type": "CentralTransitive",
+        "requested": "[2.23.0, )",
+        "resolved": "2.23.0",
+        "contentHash": "+Oth189ksRiL6HvGCwIdnsYHawqrbO8y49u1H61z3wsfcHhQZeVDYe/wF5LD7fk3NcdgDvwFD3mLm1QWhdZySw==",
+        "dependencies": {
+          "Silk.NET.Core": "2.23.0",
+          "Silk.NET.Vulkan": "2.23.0"
+        }
+      },
       "Silk.NET.Vulkan.Extensions.KHR": {
         "type": "CentralTransitive",
         "requested": "[2.23.0, )",

src/SharpEmu.Core/Cpu/Native/DirectExecutionBackend.Imports.cs

@@ -338,10 +338,15 @@ public sealed partial class DirectExecutionBackend
 				{
 					orbisGen2Result = DispatchBootstrapBridge();
 				}
-				else if (string.Equals(importStubEntry.Nid, RuntimeStubNids.KernelDynlibDlsym, StringComparison.Ordinal))
+				else if (string.Equals(importStubEntry.Nid, RuntimeStubNids.KernelDynlibDlsym, StringComparison.Ordinal) ||
+					string.Equals(importStubEntry.Nid, "LwG8g3niqwA", StringComparison.Ordinal))
 				{
 					orbisGen2Result = DispatchKernelDynlibDlsym();
 				}
+				else if (string.Equals(importStubEntry.Nid, "r8mvOaWdi28", StringComparison.Ordinal))
+				{
+					orbisGen2Result = DispatchIl2CppApiLookupSymbol();
+				}
 				else if (importStubEntry.Export is { } cachedExport &&
 					(cachedExport.Target & cpuContext.TargetGeneration) != 0)
 				{
@@ -628,25 +633,56 @@ public sealed partial class DirectExecutionBackend
 			"ASoW5WE-UPo" or // sceKernelAprSubmitCommandBufferAndGetResult
 			"rqwFKI4PAiM" or // sceKernelAprWaitCommandBuffer
 			"eE4Szl8sil8" or // sceKernelAprSubmitCommandBuffer
-			"qvMUCyyaCSI";   // sceKernelAprSubmitCommandBufferAndGetId
+			"qvMUCyyaCSI" or // sceKernelAprSubmitCommandBufferAndGetId
+			"Q2V+iqvjgC0" or // vsnprintf
+			"q1cHNfGycLI" or // scePadRead
+			"xk0AcarP3V4" or // scePadOpen
+			"yH17Q6NWtVg" or // sceUserServiceGetEvent
+			"D-CzAxQL0XI" or // sceUserServiceGetPlatformPrivacySetting
+			"K-jXhbt2gn4";   // scePthreadMutexTrylock
 
 	private bool ShouldLogImportResult(string nid, OrbisGen2Result result)
 	{
+		var resultValue = unchecked((int)result);
+		if (resultValue > 0)
+		{
+			return false;
+		}
+
 		var expectedFileProbeMiss =
 			result == OrbisGen2Result.ORBIS_GEN2_ERROR_NOT_FOUND &&
 			IsExpectedFileProbeNotFoundNid(nid);
 		var expectedTimedWaitTimeout =
 			string.Equals(nid, "27bAgiJmOh0", StringComparison.Ordinal) &&
 			unchecked((int)result) == 60;
+		var expectedEqueueTimeout =
+			string.Equals(nid, "fzyMKs9kim0", StringComparison.Ordinal) &&
+			result == OrbisGen2Result.ORBIS_GEN2_ERROR_TIMED_OUT;
 		var expectedMutexTrylockBusy =
 			string.Equals(nid, "K-jXhbt2gn4", StringComparison.Ordinal) &&
 			result == OrbisGen2Result.ORBIS_GEN2_ERROR_BUSY;
-		if (!expectedFileProbeMiss && !expectedTimedWaitTimeout && !expectedMutexTrylockBusy)
+		var expectedUserServiceNoEvent =
+			string.Equals(nid, "yH17Q6NWtVg", StringComparison.Ordinal) &&
+			resultValue == unchecked((int)0x80960007);
+		var expectedPrivacyInvalidParameter =
+			string.Equals(nid, "D-CzAxQL0XI", StringComparison.Ordinal) &&
+			resultValue == unchecked((int)0x80960009);
+		if (!expectedFileProbeMiss &&
+			!expectedTimedWaitTimeout &&
+			!expectedEqueueTimeout &&
+			!expectedMutexTrylockBusy &&
+			!expectedUserServiceNoEvent &&
+			!expectedPrivacyInvalidParameter)
 		{
 			return true;
 		}
 
-		var key = nid + "\0" + (int)result;
+		if (!ShouldLogExpectedImportResults())
+		{
+			return false;
+		}
+
+		var key = nid + "\0" + resultValue;
 		int count;
 		lock (_importResultLogSampleGate)
 		{
@@ -658,6 +694,12 @@ public sealed partial class DirectExecutionBackend
 		return count <= 8 || count % 10000 == 0;
 	}
 
+	private static bool ShouldLogExpectedImportResults() =>
+		string.Equals(
+			Environment.GetEnvironmentVariable("SHARPEMU_LOG_EXPECTED_IMPORT_RESULTS"),
+			"1",
+			StringComparison.Ordinal);
+
 	private static bool IsExpectedFileProbeNotFoundNid(string nid) =>
 		nid is
 			"eV9wAD2riIA" or // sceKernelStat
@@ -723,6 +765,7 @@ public sealed partial class DirectExecutionBackend
 			"Vo5V8KAwCmk" or // sceSystemServiceHideSplashScreen
 			"TywrFKCoLGY" or // sceSaveDataInitialize3
 			"dyIhnXq-0SM" or // sceSaveDataDirNameSearch
+			"ZP4e7rlzOUk" or // sceSaveDataMount3
 			"ERKzksauAJA" or // sceSaveDataDialogGetStatus
 			"KK3Bdg1RWK0" or // sceSaveDataDialogUpdateStatus
 			"en7gNVnh878" or // sceSaveDataDialogIsReadyToDisplay
@@ -1179,8 +1222,11 @@ public sealed partial class DirectExecutionBackend
 			cpuContext[CpuRegister.Rax] = 18446744073709551615uL;
 			return OrbisGen2Result.ORBIS_GEN2_OK;
 		}
-		if (!TryResolveRuntimeSymbolAddress(symbolName, out var resolvedAddress))
+		if (!TryResolveRuntimeSymbolAddress(symbolName, out var resolvedAddress) &&
+			!TryResolveRuntimeSymbolAlias(symbolName, out resolvedAddress))
 		{
+			Console.Error.WriteLine(
+				$"[LOADER][WARN] sceKernelDlsym failed: handle=0x{cpuContext[CpuRegister.Rdi]:X} symbol='{symbolName}'");
 			cpuContext[CpuRegister.Rax] = 18446744073709551615uL;
 			return OrbisGen2Result.ORBIS_GEN2_OK;
 		}
@@ -1193,6 +1239,62 @@ public sealed partial class DirectExecutionBackend
 		return OrbisGen2Result.ORBIS_GEN2_OK;
 	}
 
+	private bool TryResolveRuntimeSymbolAlias(string symbolName, out ulong address)
+	{
+		address = 0;
+		var alias = symbolName switch
+		{
+			"scriptingGetMem" => "malloc",
+			"scriptingFreeMem" => "free",
+			"scriptingRealloc" => "realloc",
+			"scriptingCalloc" => "calloc",
+			_ => null,
+		};
+
+		return alias != null && TryResolveRuntimeSymbolAddress(alias, out address);
+	}
+
+	private OrbisGen2Result DispatchIl2CppApiLookupSymbol()
+	{
+		var cpuContext = ActiveCpuContext;
+		if (cpuContext == null)
+		{
+			return OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
+		}
+
+		var symbolNameAddress = cpuContext[CpuRegister.Rdi];
+		var outputAddress = cpuContext[CpuRegister.Rsi];
+		if (!TryReadAsciiZ(symbolNameAddress, 512, out var symbolName) ||
+			outputAddress == 0 ||
+			!TryResolveIl2CppApiAddress(symbolName, out var resolvedAddress) ||
+			!TryWriteUInt64Compat(outputAddress, resolvedAddress))
+		{
+			Console.Error.WriteLine(
+				$"[LOADER][WARN] il2cpp_api_lookup_symbol failed: name='{symbolName}' out=0x{outputAddress:X16}");
+			if (outputAddress != 0)
+			{
+				_ = TryWriteUInt64Compat(outputAddress, 0);
+			}
+
+			cpuContext[CpuRegister.Rax] = ulong.MaxValue;
+			return OrbisGen2Result.ORBIS_GEN2_OK;
+		}
+
+		cpuContext[CpuRegister.Rax] = 0;
+		return OrbisGen2Result.ORBIS_GEN2_OK;
+	}
+
+	private bool TryResolveIl2CppApiAddress(string symbolName, out ulong address)
+	{
+		if (TryResolveRuntimeSymbolAddress(symbolName, out address))
+		{
+			return true;
+		}
+
+		return Aerolib.Instance.TryGetByExportName(symbolName, out var symbol) &&
+			TryResolveRuntimeSymbolAddress(symbol.Nid, out address);
+	}
+
 	private OrbisGen2Result DispatchBootstrapBridge()
 	{
 		var cpuContext = ActiveCpuContext;

src/SharpEmu.Core/Cpu/Native/DirectExecutionBackend.cs

@@ -355,6 +355,8 @@ public sealed unsafe partial class DirectExecutionBackend : INativeCpuBackend, I
 
 		public GuestThreadRunState State { get; set; }
 
+		public ulong ExitValue { get; set; }
+
 		public string? BlockReason { get; set; }
 
 		public bool HasBlockedContinuation { get; set; }
@@ -1266,7 +1268,7 @@ public sealed unsafe partial class DirectExecutionBackend : INativeCpuBackend, I
 			   libraryName.IndexOf("Kernel", StringComparison.OrdinalIgnoreCase) >= 0;
 	}
 
-	private static bool PreferLleForLibcExport(string exportName)
+	private bool PreferLleForLibcExport(string exportName)
 	{
 		if (string.IsNullOrWhiteSpace(exportName))
 		{
@@ -1287,6 +1289,10 @@ public sealed unsafe partial class DirectExecutionBackend : INativeCpuBackend, I
 		{
 			return true;
 		}
+		if (IsLibcAllocatorExport(exportName))
+		{
+			return CanUseLleLibcAllocatorFamily();
+		}
 		if (string.Equals(value, "0", StringComparison.Ordinal))
 		{
 			return true;
@@ -1298,6 +1304,51 @@ public sealed unsafe partial class DirectExecutionBackend : INativeCpuBackend, I
 		return IsSafeLleLibcExport(exportName);
 	}
 
+	private bool CanUseLleLibcAllocatorFamily()
+	{
+		return HasUsableLleLibcExport("gQX+4GDQjpM", "malloc") &&
+			   HasUsableLleLibcExport("tIhsqj0qsFE", "free") &&
+			   HasUsableLleLibcExport("2X5agFjKxMc", "calloc") &&
+			   HasUsableLleLibcExport("Y7aJ1uydPMo", "realloc") &&
+			   HasUsableLleLibcExport("Ujf3KzMvRmI", "memalign") &&
+			   HasUsableLleLibcExport("2Btkg8k24Zg", "aligned_alloc") &&
+			   HasUsableLleLibcExport("cVSk9y8URbc", "posix_memalign");
+	}
+
+	private bool HasUsableLleLibcExport(string nid, string exportName)
+	{
+		if (TryResolveRuntimeSymbolAddress(nid, out var address) && IsDirectImportTargetUsable(address))
+		{
+			return true;
+		}
+
+		foreach (var candidate in EnumerateRuntimeSymbolCandidates(exportName))
+		{
+			if (TryResolveRuntimeSymbolAddress(candidate, out address) && IsDirectImportTargetUsable(address))
+			{
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	private static bool IsLibcAllocatorExport(string exportName)
+	{
+		return exportName switch
+		{
+			"malloc" or
+			"free" or
+			"calloc" or
+			"realloc" or
+			"memalign" or
+			"aligned_alloc" or
+			"posix_memalign" or
+			"malloc_usable_size" => true,
+			_ => false,
+		};
+	}
+
 	private static bool IsSafeLleLibcExport(string exportName)
 	{
 		return exportName switch
@@ -2406,6 +2457,69 @@ public sealed unsafe partial class DirectExecutionBackend : INativeCpuBackend, I
 
 	public bool SupportsGuestContextTransfer => true;
 
+	public bool TryJoinThread(
+		CpuContext callerContext,
+		ulong threadHandle,
+		out ulong returnValue,
+		out string? error)
+	{
+		returnValue = 0;
+		error = null;
+		if (threadHandle == 0)
+		{
+			error = "thread handle is zero";
+			return false;
+		}
+
+		if (threadHandle == GuestThreadExecution.CurrentGuestThreadHandle)
+		{
+			error = "thread cannot join itself";
+			return false;
+		}
+
+		while (!ActiveForcedGuestExit)
+		{
+			Thread? hostThread;
+			lock (_guestThreadGate)
+			{
+				if (!_guestThreads.TryGetValue(threadHandle, out var thread))
+				{
+					error = $"unknown guest thread 0x{threadHandle:X16}";
+					return false;
+				}
+
+				if (thread.State == GuestThreadRunState.Exited)
+				{
+					returnValue = thread.ExitValue;
+					return true;
+				}
+
+				if (thread.State == GuestThreadRunState.Faulted)
+				{
+					error =
+						$"guest thread 0x{threadHandle:X16} faulted: " +
+						(thread.BlockReason ?? "unknown error");
+					return false;
+				}
+
+				hostThread = thread.HostThread;
+			}
+
+			if (hostThread is not null &&
+				!ReferenceEquals(hostThread, Thread.CurrentThread))
+			{
+				hostThread.Join(1);
+			}
+			else
+			{
+				Thread.Sleep(1);
+			}
+		}
+
+		error = "guest execution stopped while joining thread";
+		return false;
+	}
+
 	public void Pump(CpuContext callerContext, string reason)
 	{
 		_ = callerContext;
@@ -3254,6 +3368,7 @@ public sealed unsafe partial class DirectExecutionBackend : INativeCpuBackend, I
 				switch (exitReason)
 				{
 					case GuestNativeCallExitReason.Returned:
+						thread.ExitValue = thread.Context[CpuRegister.Rax];
 						thread.State = GuestThreadRunState.Exited;
 						break;
 					case GuestNativeCallExitReason.Blocked:

src/SharpEmu.Core/Memory/PhysicalVirtualMemory.cs

@@ -11,7 +11,9 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
 {
     private readonly ReaderWriterLockSlim _gate = new(LockRecursionPolicy.SupportsRecursion);
     private readonly object _guestAllocationGate = new();
+    private readonly object _allocationSearchHintGate = new();
     private readonly List<MemoryRegion> _regions = new();
+    private readonly Dictionary<(ulong DesiredAddress, ulong Alignment, bool Executable), ulong> _allocationSearchHints = new();
     private readonly Dictionary<ulong, ProgramHeaderFlags> _pageProtections = new();
     private bool _disposed;
     private const ulong PageSize = 0x1000;
@@ -19,7 +21,8 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
     private const ulong GuestAllocationArenaSize = 0x0100_0000;
     private const ulong GuestAllocationArenaStartOffset = PageSize;
     private const ulong LargeDataReserveThreshold = 0x4000_0000UL; // 1 GiB
-    private const ulong LazyReservePrimeBytes = 0x5000_0000UL; // 1.25 GiB
+    private const ulong FullCommitRegionLimit = 4UL << 30;
+    private const ulong DefaultLazyReservePrimeBytes = 0x0400_0000UL; // 64 MiB
     private const ulong LazyReservePrimeChunkBytes = 0x0200_0000UL; // 32 MiB
 
     private const uint MEM_COMMIT = 0x1000;
@@ -35,6 +38,7 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
 
     private ulong _guestAllocationArenaBase;
     private ulong _guestAllocationOffset;
+    private static readonly ulong LazyReservePrimeBytes = ResolveLazyReservePrimeBytes();
 
     [DllImport("kernel32.dll", SetLastError = true)]
     private static extern void* VirtualAlloc(void* lpAddress, nuint dwSize, uint flAllocationType, uint flProtect);
@@ -81,7 +85,7 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
         _gate.EnterWriteLock();
         try
         {
-            _regions.Add(new MemoryRegion
+            InsertRegionSorted(new MemoryRegion
             {
                 VirtualAddress = actualAddress,
                 Size = alignedSize,
@@ -96,7 +100,7 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
         }
 
         var allocationKind = executable ? "executable memory" : "data memory";
-        Console.Error.WriteLine($"[VMEM] Allocated exact {allocationKind}: 0x{actualAddress:X16} - 0x{actualAddress + alignedSize:X16} ({alignedSize} bytes)");
+        TraceVmem($"Allocated exact {allocationKind}: 0x{actualAddress:X16} - 0x{actualAddress + alignedSize:X16} ({alignedSize} bytes)");
         return true;
     }
 
@@ -110,7 +114,9 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
         var protection = executable ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE;
         var allocationType = MEM_COMMIT | MEM_RESERVE;
         var reservedOnly = false;
-        var preferReserveOnly = !executable && alignedSize >= LargeDataReserveThreshold;
+        var preferReserveOnly = !executable &&
+            alignedSize >= LargeDataReserveThreshold &&
+            alignedSize > FullCommitRegionLimit;
 
         void* result = null;
         if (preferReserveOnly)
@@ -139,7 +145,7 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
                 throw new InvalidOperationException($"Failed to allocate exact mapping at 0x{desiredAddress:X16} ({alignedSize} bytes)");
             }
 
-            Console.Error.WriteLine($"[VMEM] Could not allocate at 0x{desiredAddress:X16}, trying any address...");
+            TraceVmem($"Could not allocate at 0x{desiredAddress:X16}, trying any address...");
             result = VirtualAlloc(null, (nuint)alignedSize, allocationType, protection);
 
             if (result == null)
@@ -193,12 +199,12 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
                     lazyPrimeState = committedBytes == primeBytes
                         ? $"ok:{committedBytes:X}"
                         : $"partial:{committedBytes:X}/{primeBytes:X}";
-                    Console.Error.WriteLine($"[VMEM] Primed lazy region: 0x{actualAddress:X16} - 0x{actualAddress + committedBytes:X16} ({committedBytes} bytes)");
+                    TraceVmem($"Primed lazy region: 0x{actualAddress:X16} - 0x{actualAddress + committedBytes:X16} ({committedBytes} bytes)");
                 }
                 else
                 {
                     lazyPrimeState = $"fail:{primeBytes:X}";
-                    Console.Error.WriteLine($"[VMEM] Failed to prime lazy region at 0x{actualAddress:X16} ({primeBytes} bytes), continuing with on-demand commit");
+                    TraceVmem($"Failed to prime lazy region at 0x{actualAddress:X16} ({primeBytes} bytes), continuing with on-demand commit");
                 }
             }
             else
@@ -210,7 +216,7 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
         _gate.EnterWriteLock();
         try
         {
-            _regions.Add(new MemoryRegion
+            InsertRegionSorted(new MemoryRegion
             {
                 VirtualAddress = actualAddress,
                 Size = alignedSize,
@@ -227,7 +233,7 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
         var allocationKind = reservedOnly
             ? "reserved data memory (lazy commit)"
             : (executable ? "executable memory" : "data memory");
-        Console.Error.WriteLine($"[VMEM] Allocated {allocationKind}: 0x{actualAddress:X16} - 0x{actualAddress + alignedSize:X16} ({alignedSize} bytes) lazy_prime={lazyPrimeState}");
+        TraceVmem($"Allocated {allocationKind}: 0x{actualAddress:X16} - 0x{actualAddress + alignedSize:X16} ({alignedSize} bytes) lazy_prime={lazyPrimeState}");
 
         return actualAddress;
     }
@@ -247,7 +253,8 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
 
         var alignedSize = AlignUp(size, PageSize);
         var effectiveAlignment = Math.Max(PageSize, alignment == 0 ? PageSize : alignment);
-        var cursor = AlignUp(desiredAddress, effectiveAlignment);
+        var requestedCursor = AlignUp(desiredAddress, effectiveAlignment);
+        var cursor = GetAllocationSearchCursor(desiredAddress, requestedCursor, effectiveAlignment, executable);
 
         for (var attempt = 0; attempt < 0x10000; attempt++)
         {
@@ -267,6 +274,7 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
                 actualAddress = AllocateAt(cursor, alignedSize, executable, allowAlternative: false);
                 if (actualAddress == cursor)
                 {
+                    UpdateAllocationSearchCursor(desiredAddress, effectiveAlignment, executable, actualAddress + alignedSize);
                     return true;
                 }
 
@@ -334,6 +342,10 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
                 }
                 _regions.Clear();
                 _pageProtections.Clear();
+                lock (_allocationSearchHintGate)
+                {
+                    _allocationSearchHints.Clear();
+                }
             }
             finally
             {
@@ -390,7 +402,7 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
 
             ApplySegmentProtection(mapStart, mapEnd, protection);
 
-            Console.Error.WriteLine($"[VMEM] Mapped segment: 0x{virtualAddress:X16} - 0x{virtualAddress + memorySize:X16} (file: {fileData.Length} bytes, prot: {protection})");
+            TraceVmem($"Mapped segment: 0x{virtualAddress:X16} - 0x{virtualAddress + memorySize:X16} (file: {fileData.Length} bytes, prot: {protection})");
         }
         finally
         {
@@ -473,30 +485,34 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
         _gate.EnterReadLock();
         try
         {
-            foreach (var region in _regions)
+            var region = FindRegion(virtualAddress, (ulong)destination.Length);
+            if (region is not null &&
+                TryResolveRegionOffset(
+                    virtualAddress,
+                    (ulong)destination.Length,
+                    region,
+                    out var offset))
             {
-                if (TryResolveRegionOffset(virtualAddress, (ulong)destination.Length, region, out var offset))
+                var srcPtr = (void*)(region.VirtualAddress + offset);
+                if (destination.IsEmpty)
                 {
-                    var srcPtr = (void*)(region.VirtualAddress + offset);
+                    return true;
-                    if (destination.IsEmpty)
+                }
-                    {
-                        return true;
-                    }
 
-                    if (region.IsReservedOnly)
+                if (region.IsReservedOnly)
+                {
+                    if (!EnsureRangeCommitted((ulong)srcPtr, (ulong)destination.Length, region))
                     {
-                        if (!EnsureRangeCommitted((ulong)srcPtr, (ulong)destination.Length, region))
+                        return false;
-                        {
-                            return false;
-                        }
-                    }
-
-                    if (!CanReadWithoutProtectionChange((ulong)srcPtr, (ulong)destination.Length, region))
-                    {
-                        requiresExclusiveAccess = true;
-                        break;
                     }
+                }
 
+                if (!CanReadWithoutProtectionChange((ulong)srcPtr, (ulong)destination.Length, region))
+                {
+                    requiresExclusiveAccess = true;
+                }
+                else
+                {
                     fixed (byte* destPtr = destination)
                     {
                         Buffer.MemoryCopy(srcPtr, destPtr, (nuint)destination.Length, (nuint)destination.Length);
@@ -533,30 +549,34 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
         _gate.EnterReadLock();
         try
         {
-            foreach (var region in _regions)
+            var region = FindRegion(virtualAddress, (ulong)source.Length);
+            if (region is not null &&
+                TryResolveRegionOffset(
+                    virtualAddress,
+                    (ulong)source.Length,
+                    region,
+                    out var offset))
             {
-                if (TryResolveRegionOffset(virtualAddress, (ulong)source.Length, region, out var offset))
+                var destPtr = (void*)(region.VirtualAddress + offset);
+                if (source.IsEmpty)
                 {
-                    var destPtr = (void*)(region.VirtualAddress + offset);
+                    return true;
-                    if (source.IsEmpty)
+                }
-                    {
-                        return true;
-                    }
 
-                    if (region.IsReservedOnly)
+                if (region.IsReservedOnly)
+                {
+                    if (!EnsureRangeCommitted((ulong)destPtr, (ulong)source.Length, region))
                     {
-                        if (!EnsureRangeCommitted((ulong)destPtr, (ulong)source.Length, region))
+                        return false;
-                        {
-                            return false;
-                        }
-                    }
-
-                    if (!CanWriteWithoutProtectionChange((ulong)destPtr, (ulong)source.Length, region))
-                    {
-                        requiresExclusiveAccess = true;
-                        break;
                     }
+                }
 
+                if (!CanWriteWithoutProtectionChange((ulong)destPtr, (ulong)source.Length, region))
+                {
+                    requiresExclusiveAccess = true;
+                }
+                else
+                {
                     fixed (byte* srcPtr = source)
                     {
                         Buffer.MemoryCopy(srcPtr, destPtr, (nuint)source.Length, (nuint)source.Length);
@@ -589,13 +609,14 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
 
     private bool TryReadExclusive(ulong virtualAddress, Span<byte> destination)
     {
-        foreach (var region in _regions)
+        var region = FindRegion(virtualAddress, (ulong)destination.Length);
+        if (region is not null &&
+            TryResolveRegionOffset(
+                virtualAddress,
+                (ulong)destination.Length,
+                region,
+                out var offset))
         {
-            if (!TryResolveRegionOffset(virtualAddress, (ulong)destination.Length, region, out var offset))
-            {
-                continue;
-            }
-
             var srcPtr = (void*)(region.VirtualAddress + offset);
             if (!EnsureRangeCommitted((ulong)srcPtr, (ulong)destination.Length, region))
             {
@@ -637,13 +658,14 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
 
     private bool TryWriteExclusive(ulong virtualAddress, ReadOnlySpan<byte> source)
     {
-        foreach (var region in _regions)
+        var region = FindRegion(virtualAddress, (ulong)source.Length);
+        if (region is not null &&
+            TryResolveRegionOffset(
+                virtualAddress,
+                (ulong)source.Length,
+                region,
+                out var offset))
         {
-            if (!TryResolveRegionOffset(virtualAddress, (ulong)source.Length, region, out var offset))
-            {
-                continue;
-            }
-
             var destPtr = (void*)(region.VirtualAddress + offset);
             if (!EnsureRangeCommitted((ulong)destPtr, (ulong)source.Length, region))
             {
@@ -699,15 +721,9 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
         _gate.EnterReadLock();
         try
         {
-            foreach (var region in _regions)
+            return FindRegion(virtualAddress, 1) is not null
-            {
+                ? (void*)virtualAddress
-                if (virtualAddress >= region.VirtualAddress &&
+                : null;
-                    virtualAddress < region.VirtualAddress + region.Size)
-                {
-                    return (void*)virtualAddress;
-                }
-            }
-            return null;
         }
         finally
         {
@@ -720,14 +736,7 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
         _gate.EnterReadLock();
         try
         {
-            foreach (var region in _regions)
+            return FindRegion(virtualAddress, size) is not null;
-            {
-                if (TryResolveRegionOffset(virtualAddress, size, region, out _))
-                {
-                    return true;
-                }
-            }
-            return false;
         }
         finally
         {
@@ -737,14 +746,48 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
 
     private MemoryRegion? FindRegion(ulong address, ulong size)
     {
-        foreach (var region in _regions)
+        var low = 0;
+        var high = _regions.Count - 1;
+        MemoryRegion? candidate = null;
+        while (low <= high)
         {
-            if (TryResolveRegionOffset(address, size, region, out _))
+            var middle = low + ((high - low) >> 1);
+            var region = _regions[middle];
+            if (region.VirtualAddress <= address)
             {
-                return region;
+                candidate = region;
+                low = middle + 1;
+            }
+            else
+            {
+                high = middle - 1;
             }
         }
-        return null;
+
+        return candidate is not null &&
+            TryResolveRegionOffset(address, size, candidate, out _)
+                ? candidate
+                : null;
+    }
+
+    private void InsertRegionSorted(MemoryRegion region)
+    {
+        var low = 0;
+        var high = _regions.Count;
+        while (low < high)
+        {
+            var middle = low + ((high - low) >> 1);
+            if (_regions[middle].VirtualAddress < region.VirtualAddress)
+            {
+                low = middle + 1;
+            }
+            else
+            {
+                high = middle;
+            }
+        }
+
+        _regions.Insert(low, region);
     }
 
     private bool TryGetOverlappingRegionEnd(ulong address, ulong size, out ulong overlapEnd)
@@ -762,6 +805,16 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
             foreach (var region in _regions)
             {
                 var regionEnd = region.VirtualAddress + region.Size;
+                if (region.VirtualAddress >= end)
+                {
+                    break;
+                }
+
+                if (regionEnd <= address)
+                {
+                    continue;
+                }
+
                 if (address < regionEnd && region.VirtualAddress < end)
                 {
                     overlapEnd = Math.Max(overlapEnd, regionEnd);
@@ -776,6 +829,37 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
         return overlapEnd != 0;
     }
 
+    private ulong GetAllocationSearchCursor(
+        ulong desiredAddress,
+        ulong requestedCursor,
+        ulong alignment,
+        bool executable)
+    {
+        lock (_allocationSearchHintGate)
+        {
+            var key = (desiredAddress, alignment, executable);
+            if (_allocationSearchHints.TryGetValue(key, out var hintedCursor) &&
+                hintedCursor > requestedCursor)
+            {
+                return AlignUp(hintedCursor, alignment);
+            }
+        }
+
+        return requestedCursor;
+    }
+
+    private void UpdateAllocationSearchCursor(
+        ulong desiredAddress,
+        ulong alignment,
+        bool executable,
+        ulong nextCursor)
+    {
+        lock (_allocationSearchHintGate)
+        {
+            _allocationSearchHints[(desiredAddress, alignment, executable)] = AlignUp(nextCursor, alignment);
+        }
+    }
+
     private static bool TryResolveRegionOffset(ulong address, ulong size, MemoryRegion region, out ulong offset)
     {
         offset = 0;
@@ -944,6 +1028,29 @@ public sealed unsafe class PhysicalVirtualMemory : IVirtualMemory, IGuestMemoryA
         return checked((value + mask) & ~mask);
     }
 
+    private static ulong ResolveLazyReservePrimeBytes()
+    {
+        var configured = Environment.GetEnvironmentVariable("SHARPEMU_LAZY_RESERVE_PRIME_MB");
+        if (ulong.TryParse(configured, out var megabytes))
+        {
+            return megabytes == 0
+                ? 0
+                : checked(Math.Min(megabytes, 4096UL) * 1024UL * 1024UL);
+        }
+
+        return DefaultLazyReservePrimeBytes;
+    }
+
+    private static void TraceVmem(string message)
+    {
+        if (!string.Equals(Environment.GetEnvironmentVariable("SHARPEMU_LOG_VMEM"), "1", StringComparison.Ordinal))
+        {
+            return;
+        }
+
+        Console.Error.WriteLine($"[VMEM] {message}");
+    }
+
     public void Dispose()
     {
         if (!_disposed)

src/SharpEmu.Core/Runtime/SharpEmuRuntime.cs

@@ -543,6 +543,7 @@ public sealed class SharpEmuRuntime : ISharpEmuRuntime
         {
             Path.Combine(ebootDirectory, "sce_module"),
             Path.Combine(ebootDirectory, "sce_modules"),
+            Path.Combine(ebootDirectory, "Media", "Modules"),
         }
         .Distinct(StringComparer.OrdinalIgnoreCase)
         .Where(Directory.Exists)
@@ -554,7 +555,9 @@ public sealed class SharpEmuRuntime : ISharpEmuRuntime
         }
 
         var allModulePaths = moduleDirectories
-            .SelectMany(Directory.EnumerateFiles)
+            .SelectMany(directory => Directory
+                .EnumerateFiles(directory)
+                .OrderBy(path => path, StringComparer.OrdinalIgnoreCase))
             .Where(path =>
             {
                 var extension = Path.GetExtension(path);
@@ -562,7 +565,6 @@ public sealed class SharpEmuRuntime : ISharpEmuRuntime
                        string.Equals(extension, ".sprx", StringComparison.OrdinalIgnoreCase);
             })
             .Distinct(StringComparer.OrdinalIgnoreCase)
-            .OrderBy(path => path, StringComparer.OrdinalIgnoreCase)
             .ToArray();
 
         var modulePaths = allModulePaths

src/SharpEmu.Core/packages.lock.json

@@ -72,6 +72,7 @@
         "dependencies": {
           "SharpEmu.HLE": "[1.0.0, )",
           "Silk.NET.Vulkan": "[2.23.0, )",
+          "Silk.NET.Vulkan.Extensions.EXT": "[2.23.0, )",
           "Silk.NET.Vulkan.Extensions.KHR": "[2.23.0, )",
           "Silk.NET.Windowing": "[2.23.0, )"
         }
@@ -88,6 +89,16 @@
           "Silk.NET.Core": "2.23.0"
         }
       },
+      "Silk.NET.Vulkan.Extensions.EXT": {
+        "type": "CentralTransitive",
+        "requested": "[2.23.0, )",
+        "resolved": "2.23.0",
+        "contentHash": "+Oth189ksRiL6HvGCwIdnsYHawqrbO8y49u1H61z3wsfcHhQZeVDYe/wF5LD7fk3NcdgDvwFD3mLm1QWhdZySw==",
+        "dependencies": {
+          "Silk.NET.Core": "2.23.0",
+          "Silk.NET.Vulkan": "2.23.0"
+        }
+      },
       "Silk.NET.Vulkan.Extensions.KHR": {
         "type": "CentralTransitive",
         "requested": "[2.23.0, )",

src/SharpEmu.HLE/GuestThreadExecution.cs

@@ -29,6 +29,12 @@ public interface IGuestThreadScheduler
 
     bool TryStartThread(CpuContext creatorContext, GuestThreadStartRequest request, out string? error);
 
+    bool TryJoinThread(
+        CpuContext callerContext,
+        ulong threadHandle,
+        out ulong returnValue,
+        out string? error);
+
     void Pump(CpuContext callerContext, string reason);
 
     int WakeBlockedThreads(string wakeKey, int maxCount = int.MaxValue);

src/SharpEmu.Libs/Agc/Gen5ShaderIr.cs

@@ -60,7 +60,8 @@ internal sealed record Gen5SpirvShader(
     byte[] Spirv,
     IReadOnlyList<Gen5GlobalMemoryBinding> GlobalMemoryBindings,
     IReadOnlyList<Gen5ImageBinding> ImageBindings,
-    uint AttributeCount);
+    uint AttributeCount,
+    IReadOnlyList<Gen5VertexInputBinding> VertexInputs);
 
 internal readonly record struct Gen5ShaderResourceMapping(
     Gen5ShaderResourceKind Kind,
@@ -131,7 +132,8 @@ internal sealed record Gen5ShaderState(
     Gen5ShaderProgram Program,
     IReadOnlyList<uint> UserData,
     Gen5ShaderMetadata? Metadata,
-    Gen5ComputeSystemRegisters? ComputeSystemRegisters = null);
+    Gen5ComputeSystemRegisters? ComputeSystemRegisters = null,
+    uint UserDataScalarRegisterBase = 0);
 
 internal readonly record struct Gen5Operand(Gen5OperandKind Kind, uint Value)
 {
@@ -270,6 +272,17 @@ internal sealed record Gen5GlobalMemoryBinding(
     IReadOnlyList<uint> InstructionPcs,
     byte[] Data);
 
+internal sealed record Gen5VertexInputBinding(
+    uint Pc,
+    uint Location,
+    uint ComponentCount,
+    uint DataFormat,
+    uint NumberFormat,
+    ulong BaseAddress,
+    uint Stride,
+    uint OffsetBytes,
+    byte[] Data);
+
 internal sealed record Gen5ShaderEvaluation(
     IReadOnlyList<uint> InitialScalarRegisters,
     IReadOnlyList<uint> ScalarRegisters,
@@ -277,7 +290,8 @@ internal sealed record Gen5ShaderEvaluation(
     IReadOnlyList<Gen5ImageBinding> ImageBindings,
     IReadOnlyList<Gen5GlobalMemoryBinding> GlobalMemoryBindings,
     Gen5ComputeSystemRegisters? ComputeSystemRegisters = null,
-    IReadOnlySet<uint>? RuntimeScalarRegisters = null);
+    IReadOnlySet<uint>? RuntimeScalarRegisters = null,
+    IReadOnlyList<Gen5VertexInputBinding>? VertexInputs = null);
 
 internal sealed record Gen5ShaderInstruction(
     uint Pc,

src/SharpEmu.Libs/Agc/Gen5ShaderScalarEvaluator.cs

@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 using SharpEmu.HLE;
+using SharpEmu.Libs.Kernel;
 using System.Buffers.Binary;
 using System.Numerics;
 
@@ -13,12 +14,15 @@ internal static class Gen5ShaderScalarEvaluator
     private const int ImageDescriptorDwords = 8;
     private const int SamplerDescriptorDwords = 4;
     private const int MaxGlobalMemoryBindingBytes = 16 * 1024 * 1024;
+    private const ulong RdnaWaveMask = 0xFFFF_FFFFUL;
 
     private readonly record struct BufferDescriptor(
         ulong BaseAddress,
         uint Stride,
         uint NumRecords,
-        ulong SizeBytes);
+        ulong SizeBytes,
+        uint NumberFormat,
+        uint DataFormat);
 
     public static bool TryResolveImageBindings(
         CpuContext ctx,
@@ -40,14 +44,19 @@ internal static class Gen5ShaderScalarEvaluator
         CpuContext ctx,
         Gen5ShaderState state,
         out Gen5ShaderEvaluation evaluation,
-        out string error)
+        out string error,
+        bool resolveVertexInputs = false)
     {
         evaluation = default!;
         error = string.Empty;
         var scalarRegisters = new uint[ScalarRegisterCount];
-        for (var index = 0; index < state.UserData.Count && index < scalarRegisters.Length; index++)
+        for (var index = 0;
+             index < state.UserData.Count &&
+             state.UserDataScalarRegisterBase + (uint)index < scalarRegisters.Length;
+             index++)
         {
-            scalarRegisters[index] = state.UserData[index];
+            scalarRegisters[state.UserDataScalarRegisterBase + (uint)index] =
+                state.UserData[index];
         }
 
         if (state.ComputeSystemRegisters is { } computeSystemRegisters)
@@ -55,14 +64,15 @@ internal static class Gen5ShaderScalarEvaluator
             computeSystemRegisters.ClearStaticValues(scalarRegisters);
         }
 
-        var execMask = ulong.MaxValue;
+        var execMask = RdnaWaveMask;
-        WriteScalarPair(scalarRegisters, 106, ulong.MaxValue, ref execMask);
+        WriteScalarPair(scalarRegisters, 106, 0, ref execMask);
         WriteScalarPair(scalarRegisters, 126, execMask, ref execMask);
         var initialScalarRegisters = (uint[])scalarRegisters.Clone();
 
         var resolved = new List<Gen5ImageBinding>();
         var globalMemoryBindings = new List<Gen5GlobalMemoryBinding>();
         var globalMemoryByAddress = new Dictionary<(uint ScalarAddress, ulong BaseAddress), Gen5GlobalMemoryBinding>();
+        var vertexInputBindings = new List<Gen5VertexInputBinding>();
         var runtimeScalarRegisters = CollectRuntimeScalarRegisters(state.Program);
         var scalarRegisterSnapshots = new Dictionary<uint, IReadOnlyList<uint>>();
         var scalarConditionCode = false;
@@ -243,6 +253,42 @@ internal static class Gen5ShaderScalarEvaluator
                     return false;
                 }
 
+                if (resolveVertexInputs &&
+                    IsVertexFetchCandidate(instruction, bufferMemory, bufferDescriptor))
+                {
+                    if (!TryReadGlobalMemory(
+                            ctx,
+                            bufferDescriptor.BaseAddress,
+                            bufferDescriptor.SizeBytes,
+                            out var vertexData))
+                    {
+                        error =
+                            $"vertex-buffer-read-failed pc=0x{instruction.Pc:X} " +
+                            $"address=0x{bufferDescriptor.BaseAddress:X16} " +
+                            $"bytes={bufferDescriptor.SizeBytes} " +
+                            $"stride={bufferDescriptor.Stride} records={bufferDescriptor.NumRecords}";
+                        return false;
+                    }
+
+                    if (!TryCreateVertexInputBinding(
+                            instruction,
+                            bufferMemory,
+                            bufferDescriptor,
+                            vertexData,
+                            (uint)vertexInputBindings.Count,
+                            scalarRegisters,
+                            out var vertexInputBinding))
+                    {
+                        error =
+                            $"vertex-input-binding-failed pc=0x{instruction.Pc:X} " +
+                            $"s{bufferMemory.ScalarResource}";
+                        return false;
+                    }
+
+                    vertexInputBindings.Add(vertexInputBinding);
+                    continue;
+                }
+
                 var key = (bufferMemory.ScalarResource, bufferDescriptor.BaseAddress);
                 if (globalMemoryByAddress.TryGetValue(key, out var existingBinding))
                 {
@@ -259,10 +305,16 @@ internal static class Gen5ShaderScalarEvaluator
                             bufferDescriptor.SizeBytes,
                             out var data))
                     {
+                        var descriptorWords = string.Join(
+                            ':',
+                            Enumerable.Range(0, 4).Select(index =>
+                                $"{scalarRegisters[bufferMemory.ScalarResource + (uint)index]:X8}"));
                         error =
                             $"buffer-memory-read-failed pc=0x{instruction.Pc:X} " +
                             $"address=0x{bufferDescriptor.BaseAddress:X16} " +
-                            $"bytes={bufferDescriptor.SizeBytes}";
+                            $"bytes={bufferDescriptor.SizeBytes} " +
+                            $"stride={bufferDescriptor.Stride} records={bufferDescriptor.NumRecords} " +
+                            $"s{bufferMemory.ScalarResource}=[{descriptorWords}]";
                         return false;
                     }
 
@@ -328,10 +380,58 @@ internal static class Gen5ShaderScalarEvaluator
             resolved,
             globalMemoryBindings,
             state.ComputeSystemRegisters,
-            runtimeScalarRegisters);
+            runtimeScalarRegisters,
+            vertexInputBindings);
         return true;
     }
 
+    private static bool TryCreateVertexInputBinding(
+        Gen5ShaderInstruction instruction,
+        Gen5BufferMemoryControl control,
+        BufferDescriptor descriptor,
+        byte[] data,
+        uint location,
+        uint[] scalarRegisters,
+        out Gen5VertexInputBinding binding)
+    {
+        binding = default!;
+        if (!IsVertexFetchCandidate(instruction, control, descriptor) ||
+            instruction.Sources.Count <= 2 ||
+            !TryEvaluateScalarOperand(instruction.Sources[2], scalarRegisters, out var scalarOffset))
+        {
+            return false;
+        }
+
+        var bindingData = data;
+        var bindingStride = descriptor.Stride;
+        var bindingOffset = unchecked((uint)control.OffsetBytes + scalarOffset);
+        var bindingDataFormat = descriptor.DataFormat;
+        var bindingNumberFormat = descriptor.NumberFormat;
+        binding = new Gen5VertexInputBinding(
+            instruction.Pc,
+            location,
+            control.DwordCount,
+            bindingDataFormat,
+            bindingNumberFormat,
+            descriptor.BaseAddress,
+            bindingStride,
+            bindingOffset,
+            bindingData);
+        return true;
+    }
+
+    private static bool IsVertexFetchCandidate(
+        Gen5ShaderInstruction instruction,
+        Gen5BufferMemoryControl control,
+        BufferDescriptor descriptor) =>
+        control.IndexEnabled &&
+        !control.OffsetEnabled &&
+        control.DwordCount is >= 1 and <= 4 &&
+        descriptor.BaseAddress != 0 &&
+        descriptor.Stride != 0 &&
+        (instruction.Opcode.StartsWith("BufferLoadFormat", StringComparison.Ordinal) ||
+         instruction.Opcode.StartsWith("TBufferLoadFormat", StringComparison.Ordinal));
+
     private static HashSet<uint> CollectRuntimeScalarRegisters(Gen5ShaderProgram program)
     {
         var registers = new HashSet<uint>();
@@ -471,10 +571,22 @@ internal static class Gen5ShaderScalarEvaluator
             return false;
         }
 
-        data = GC.AllocateUninitializedArray<byte>((int)cappedSize);
+        var candidateSize = (int)cappedSize;
-        if (ctx.Memory.TryRead(baseAddress, data))
+        while (candidateSize >= sizeof(uint))
         {
-            return true;
+            data = GC.AllocateUninitializedArray<byte>(candidateSize);
+            if (ctx.Memory.TryRead(baseAddress, data) ||
+                KernelMemoryCompatExports.TryReadTrackedLibcHeap(baseAddress, data))
+            {
+                return true;
+            }
+
+            if (candidateSize == sizeof(uint))
+            {
+                break;
+            }
+
+            candidateSize = Math.Max(candidateSize / 2, sizeof(uint));
         }
 
         data = [];
@@ -582,6 +694,49 @@ internal static class Gen5ShaderScalarEvaluator
             return true;
         }
 
+        if (instruction.Opcode is "SBfeU64" or "SBfeI64")
+        {
+            if (instruction.Sources.Count < 2 ||
+                destination.Value >= ScalarRegisterCount - 1 ||
+                !TryEvaluateScalarOperand64(
+                    instruction.Sources[0],
+                    registers,
+                    execMask,
+                    out var source) ||
+                !TryEvaluateScalarOperand(
+                    instruction.Sources[1],
+                    registers,
+                    out var control))
+            {
+                error = $"scalar-source64 pc=0x{instruction.Pc:X} op={instruction.Opcode}";
+                return false;
+            }
+
+            var offset = (int)control & 63;
+            var width = Math.Min(((int)control >> 16) & 0x7F, 64 - offset);
+            ulong value;
+            if (width == 0)
+            {
+                value = 0;
+            }
+            else
+            {
+                value = source >> offset;
+                if (width < 64)
+                {
+                    value &= ulong.MaxValue >> (64 - width);
+                    if (instruction.Opcode == "SBfeI64")
+                    {
+                        value = unchecked((ulong)((long)(value << (64 - width)) >> (64 - width)));
+                    }
+                }
+            }
+
+            WriteScalarPair(registers, destination.Value, value, ref execMask);
+            scalarConditionCode = value != 0;
+            return true;
+        }
+
         if (instruction.Opcode is
             "SCselectB64" or
             "SAndB64" or
@@ -657,7 +812,11 @@ internal static class Gen5ShaderScalarEvaluator
                 "SFF1I32B32" => left == 0 ? uint.MaxValue : (uint)BitOperations.TrailingZeroCount(left),
                 _ => registers[destination.Value] | (1u << ((int)left & 31)),
             };
-            scalarConditionCode = registers[destination.Value] != 0;
+            if (instruction.Opcode != "SBitset1B32")
+            {
+                scalarConditionCode = registers[destination.Value] != 0;
+            }
+
             return true;
         }
 
@@ -683,13 +842,15 @@ internal static class Gen5ShaderScalarEvaluator
                 }
             case "SSubU32":
                 result = left - right;
-                scalarConditionCode = left >= right;
+                scalarConditionCode = right > left;
                 break;
             case "SAddI32":
                 result = unchecked((uint)((int)left + (int)right));
+                scalarConditionCode = SignedAddOverflow(left, right, result);
                 break;
             case "SSubI32":
                 result = unchecked((uint)((int)left - (int)right));
+                scalarConditionCode = SignedSubOverflow(left, right, result);
                 break;
             case "SAddcU32":
                 {
@@ -700,23 +861,27 @@ internal static class Gen5ShaderScalarEvaluator
                 }
             case "SSubbU32":
                 {
-                    var borrow = scalarConditionCode ? 0UL : 1UL;
+                    var borrow = scalarConditionCode ? 1UL : 0UL;
                     var subtrahend = (ulong)right + borrow;
                     result = unchecked(left - (uint)subtrahend);
-                    scalarConditionCode = left >= subtrahend;
+                    scalarConditionCode = subtrahend > left;
                     break;
                 }
             case "SMinI32":
                 result = unchecked((uint)Math.Min((int)left, (int)right));
+                scalarConditionCode = (int)left < (int)right;
                 break;
             case "SMinU32":
                 result = Math.Min(left, right);
+                scalarConditionCode = left < right;
                 break;
             case "SMaxI32":
                 result = unchecked((uint)Math.Max((int)left, (int)right));
+                scalarConditionCode = (int)left > (int)right;
                 break;
             case "SMaxU32":
                 result = Math.Max(left, right);
+                scalarConditionCode = left > right;
                 break;
             case "SCselectB32":
                 result = scalarConditionCode ? left : right;
@@ -780,6 +945,7 @@ internal static class Gen5ShaderScalarEvaluator
                     var offset = (int)right & 31;
                     var width = Math.Min(((int)right >> 16) & 0x7F, 32 - offset);
                     result = width == 0 ? 0 : left >> offset & (uint.MaxValue >> (32 - width));
+                    scalarConditionCode = result != 0;
                     break;
                 }
             case "SBfeI32":
@@ -789,23 +955,41 @@ internal static class Gen5ShaderScalarEvaluator
                     result = width == 0
                         ? 0
                         : unchecked((uint)(((int)(left << (32 - width - offset))) >> (32 - width)));
+                    scalarConditionCode = result != 0;
                     break;
                 }
             case "SAbsdiffI32":
                 result = unchecked((uint)Math.Abs((long)(int)left - (int)right));
+                scalarConditionCode = result != 0;
                 break;
             case "SLshl1AddU32":
-                result = (left << 1) + right;
+                {
-                break;
+                    var wide = ((ulong)left << 1) + right;
+                    result = (uint)wide;
+                    scalarConditionCode = wide > uint.MaxValue;
+                    break;
+                }
             case "SLshl2AddU32":
-                result = (left << 2) + right;
+                {
-                break;
+                    var wide = ((ulong)left << 2) + right;
+                    result = (uint)wide;
+                    scalarConditionCode = wide > uint.MaxValue;
+                    break;
+                }
             case "SLshl3AddU32":
-                result = (left << 3) + right;
+                {
-                break;
+                    var wide = ((ulong)left << 3) + right;
+                    result = (uint)wide;
+                    scalarConditionCode = wide > uint.MaxValue;
+                    break;
+                }
             case "SLshl4AddU32":
-                result = (left << 4) + right;
+                {
-                break;
+                    var wide = ((ulong)left << 4) + right;
+                    result = (uint)wide;
+                    scalarConditionCode = wide > uint.MaxValue;
+                    break;
+                }
             case "SPackLlB32B16":
                 result = (left & 0xFFFFu) | (right << 16);
                 break;
@@ -847,7 +1031,8 @@ internal static class Gen5ShaderScalarEvaluator
             "SNandSaveexecB64" or
             "SNorSaveexecB64" or
             "SXnorSaveexecB64" or
-            "SAndn1SaveexecB64"))
+            "SAndn1SaveexecB64" or
+            "SOrn1SaveexecB64"))
         {
             return false;
         }
@@ -875,18 +1060,19 @@ internal static class Gen5ShaderScalarEvaluator
             "SAndSaveexecB64" => oldExec & source,
             "SOrSaveexecB64" => oldExec | source,
             "SXorSaveexecB64" => oldExec ^ source,
-            "SAndn1SaveexecB64" => ~oldExec & source,
+            "SAndn1SaveexecB64" => ~source & oldExec,
-            "SAndn2SaveexecB64" => oldExec & ~source,
+            "SAndn2SaveexecB64" => source & ~oldExec,
-            "SOrn2SaveexecB64" => oldExec | ~source,
+            "SOrn1SaveexecB64" => ~source | oldExec,
-            "SNandSaveexecB64" => ~(oldExec & source),
+            "SOrn2SaveexecB64" => source | ~oldExec,
-            "SNorSaveexecB64" => ~(oldExec | source),
+            "SNandSaveexecB64" => ~(source & oldExec),
+            "SNorSaveexecB64" => ~(source | oldExec),
             _ => ~(oldExec ^ source),
         };
 
         WriteScalarPair(registers, destination.Value, oldExec, ref execMask);
-        execMask = newExec;
+        execMask = MaskWaveValue(newExec);
         WriteScalarPair(registers, 126, execMask, ref execMask);
-        scalarConditionCode = newExec != 0;
+        scalarConditionCode = execMask != 0;
         return true;
     }
 
@@ -934,6 +1120,11 @@ internal static class Gen5ShaderScalarEvaluator
             return;
         }
 
+        if (destination == 126)
+        {
+            value = MaskWaveValue(value);
+        }
+
         registers[destination] = (uint)value;
         registers[destination + 1] = (uint)(value >> 32);
         if (destination == 126)
@@ -942,6 +1133,14 @@ internal static class Gen5ShaderScalarEvaluator
         }
     }
 
+    private static ulong MaskWaveValue(ulong value) => value & RdnaWaveMask;
+
+    private static bool SignedAddOverflow(uint left, uint right, uint result) =>
+        ((left ^ result) & (right ^ result) & 0x80000000u) != 0;
+
+    private static bool SignedSubOverflow(uint left, uint right, uint result) =>
+        ((left ^ right) & (left ^ result) & 0x80000000u) != 0;
+
     private static bool TryExecuteScalarCompare(
         Gen5ShaderInstruction instruction,
         uint[] registers,
@@ -1263,7 +1462,7 @@ internal static class Gen5ShaderScalarEvaluator
             word2 == 0 &&
             word3 == 0)
         {
-            descriptor = new BufferDescriptor(0, 0, 0, 0);
+            descriptor = new BufferDescriptor(0, 0, 0, 0, 0, 0);
             return true;
         }
 
@@ -1275,19 +1474,64 @@ internal static class Gen5ShaderScalarEvaluator
                 return false;
             }
 
-            descriptor = new BufferDescriptor(0, 0, 0, 0);
+            descriptor = new BufferDescriptor(0, 0, 0, 0, 0, 0);
             return true;
         }
 
-        var baseAddress = word0 | ((ulong)(word1 & 0x0FFFu) << 32);
+        var baseAddress = word0 | ((ulong)(word1 & 0xFFFFu) << 32);
         var stride = (word1 >> 16) & 0x3FFFu;
+        var unifiedFormat = (word3 >> 12) & 0x7Fu;
+        var (dataFormat, numberFormat) =
+            DecodeGfx10BufferFormat(unifiedFormat);
         var sizeBytes = stride == 0
             ? word2
             : (ulong)stride * word2;
-        descriptor = new BufferDescriptor(baseAddress, stride, word2, sizeBytes);
+        descriptor = new BufferDescriptor(baseAddress, stride, word2, sizeBytes, numberFormat, dataFormat);
         return true;
     }
 
+    private static (uint DataFormat, uint NumberFormat)
+        DecodeGfx10BufferFormat(uint format) =>
+        format switch
+        {
+            0 => (0, 0),
+            >= 1 and <= 6 => (1, format - 1),
+            >= 7 and <= 13 => (2, DecodeUnifiedNumber(format - 7, 7)),
+            >= 14 and <= 19 => (3, format - 14),
+            >= 20 and <= 22 => (4, DecodeIntegerOrFloatNumber(format - 20)),
+            >= 23 and <= 29 => (5, DecodeUnifiedNumber(format - 23, 7)),
+            >= 30 and <= 36 => (6, DecodeUnifiedNumber(format - 30, 7)),
+            >= 37 and <= 43 => (7, DecodeUnifiedNumber(format - 37, 7)),
+            >= 44 and <= 49 => (8, format - 44),
+            >= 50 and <= 55 => (9, format - 50),
+            >= 56 and <= 61 => (10, format - 56),
+            >= 62 and <= 64 => (11, DecodeIntegerOrFloatNumber(format - 62)),
+            >= 65 and <= 71 => (12, DecodeUnifiedNumber(format - 65, 7)),
+            >= 72 and <= 74 => (13, DecodeIntegerOrFloatNumber(format - 72)),
+            >= 75 and <= 77 => (14, DecodeIntegerOrFloatNumber(format - 75)),
+            128 => (1, 9),
+            129 => (3, 9),
+            130 => (10, 9),
+            132 => (34, 7),
+            133 => (16, 0),
+            134 => (17, 0),
+            135 => (18, 0),
+            136 => (19, 0),
+            140 => (4, 7),
+            _ => (0, 0),
+        };
+
+    private static uint DecodeUnifiedNumber(uint offset, uint formatCount) =>
+        offset == formatCount - 1 ? 7u : offset;
+
+    private static uint DecodeIntegerOrFloatNumber(uint offset) =>
+        offset switch
+        {
+            0 => 4,
+            1 => 5,
+            _ => 7,
+        };
+
     private static bool TryReadUserDataScalarLoad(
         Gen5ShaderState state,
         Gen5ShaderInstruction instruction,

src/SharpEmu.Libs/Agc/Gen5ShaderTranslator.cs

@@ -4,6 +4,7 @@
 using SharpEmu.HLE;
 using SharpEmu.Libs.VideoOut;
 using System.Buffers.Binary;
+using System.Runtime.CompilerServices;
 using System.Text;
 
 namespace SharpEmu.Libs.Agc;
@@ -13,6 +14,14 @@ internal static class Gen5ShaderTranslator
     private const int MaxInstructions = 4096;
     private const int MinimumUserDataDwords = 16;
     private const int MaximumUserDataDwords = 256;
+    private static readonly ConditionalWeakTable<object, ShaderDecodeCache> _decodeCaches = new();
+
+    private sealed class ShaderDecodeCache
+    {
+        public object Gate { get; } = new();
+        public Dictionary<ulong, Gen5ShaderProgram> Programs { get; } = new();
+        public Dictionary<ulong, Gen5ShaderMetadata?> Metadata { get; } = new();
+    }
 
     private static readonly uint[] FullscreenBarycentricEs =
     [
@@ -113,19 +122,55 @@ internal static class Gen5ShaderTranslator
         uint userDataBaseRegister,
         out Gen5ShaderState state,
         out string error,
-        Gen5ComputeSystemRegisters? computeSystemRegisters = null)
+        Gen5ComputeSystemRegisters? computeSystemRegisters = null,
+        uint userDataScalarRegisterBase = 0)
     {
         state = default!;
-        if (!TryDecodeProgram(ctx, shaderAddress, out var program, out error))
+        error = string.Empty;
+        var cache = _decodeCaches.GetValue(ctx.Memory, static _ => new ShaderDecodeCache());
+        Gen5ShaderProgram? program;
+        lock (cache.Gate)
         {
-            return false;
+            cache.Programs.TryGetValue(shaderAddress, out program);
+        }
+
+        if (program is null)
+        {
+            if (!TryDecodeProgram(ctx, shaderAddress, out program, out error))
+            {
+                return false;
+            }
+
+            lock (cache.Gate)
+            {
+                cache.Programs.TryAdd(shaderAddress, program);
+            }
         }
 
         Gen5ShaderMetadata? metadata = null;
-        if (shaderHeaderAddress != 0 &&
+        if (shaderHeaderAddress != 0)
-            Gen5ShaderMetadataReader.TryRead(ctx, shaderHeaderAddress, out var decodedMetadata))
         {
-            metadata = decodedMetadata;
+            var metadataCached = false;
+            lock (cache.Gate)
+            {
+                metadataCached = cache.Metadata.TryGetValue(shaderHeaderAddress, out metadata);
+            }
+
+            if (!metadataCached)
+            {
+                if (Gen5ShaderMetadataReader.TryRead(
+                        ctx,
+                        shaderHeaderAddress,
+                        out var decodedMetadata))
+                {
+                    metadata = decodedMetadata;
+                }
+
+                lock (cache.Gate)
+                {
+                    cache.Metadata.TryAdd(shaderHeaderAddress, metadata);
+                }
+            }
         }
 
         var userData = new uint[GetUserDataDwordCount(metadata)];
@@ -134,7 +179,12 @@ internal static class Gen5ShaderTranslator
             shaderRegisters.TryGetValue(userDataBaseRegister + index, out userData[index]);
         }
 
-        state = new Gen5ShaderState(program, userData, metadata, computeSystemRegisters);
+        state = new Gen5ShaderState(
+            program,
+            userData,
+            metadata,
+            computeSystemRegisters,
+            userDataScalarRegisterBase);
         return true;
     }
 
@@ -179,7 +229,9 @@ internal static class Gen5ShaderTranslator
             : string.Empty;
         if (state.Metadata is not { } metadata)
         {
-            return $"ud[{userData}]{systemRegisters} metadata=missing";
+            return
+                $"ud_base=s{state.UserDataScalarRegisterBase} ud[{userData}]" +
+                $"{systemRegisters} metadata=missing";
         }
 
         var direct = string.Join(
@@ -191,7 +243,8 @@ internal static class Gen5ShaderTranslator
                 $"{resource.Kind}[{resource.Slot}]@{resource.OffsetDwords}" +
                 (resource.SizeFlag ? "+" : string.Empty)));
         return
-            $"ud[{userData}]{systemRegisters} metadata[eud={metadata.ExtendedUserDataSizeDwords}," +
+            $"ud_base=s{state.UserDataScalarRegisterBase} ud[{userData}]" +
+            $"{systemRegisters} metadata[eud={metadata.ExtendedUserDataSizeDwords}," +
             $"srt={metadata.ShaderResourceTableSizeDwords},direct={direct},resources={resources}]";
     }
 
@@ -443,6 +496,7 @@ internal static class Gen5ShaderTranslator
             0x2A => "SNorSaveexecB64",
             0x2B => "SXnorSaveexecB64",
             0x37 => "SAndn1SaveexecB64",
+            0x38 => "SOrn1SaveexecB64",
             _ => string.Empty,
         };
 
@@ -668,9 +722,8 @@ internal static class Gen5ShaderTranslator
         error = string.Empty;
         name = opcode switch
         {
-            0x00 => "VCndmaskB32",
+            0x01 => "VCndmaskB32",
-            0x01 => "VReadlaneB32",
+            0x02 => "VDot2cF32F16",
-            0x02 => "VWritelaneB32",
             0x03 => "VAddF32",
             0x04 => "VSubF32",
             0x05 => "VSubrevF32",
@@ -810,7 +863,7 @@ internal static class Gen5ShaderTranslator
             }
             : opcode switch
         {
-            0x101 => "VReadlaneB32",
+            0x101 => "VCndmaskB32",
             0x103 => "VAddF32",
             0x104 => "VSubF32",
             0x108 => "VMulF32",
@@ -1246,17 +1299,16 @@ internal static class Gen5ShaderTranslator
                 var scalarOffset = (extra >> 25) & 0x7F;
                 var offset = SignExtend(extra & 0x1FFFFF, 21);
                 var count = ScalarLoadDwordCount(opcode);
-                var dynamicOffsetRegister = scalarOffset <= 105 || scalarOffset == 124
+                sources =
-                    ? scalarOffset
+                [
-                    : (uint?)null;
+                    Gen5Operand.Scalar(scalarBase),
-                sources = dynamicOffsetRegister.HasValue
+                    Gen5Operand.Scalar(scalarOffset),
-                    ? [Gen5Operand.Scalar(scalarBase), Gen5Operand.Scalar(dynamicOffsetRegister.Value)]
+                ];
-                    : [Gen5Operand.Scalar(scalarBase)];
                 destinations = Enumerable
                     .Range((int)scalarDestination, checked((int)count))
                     .Select(index => Gen5Operand.Scalar((uint)index))
                     .ToArray();
-                control = new Gen5ScalarMemoryControl(count, offset, dynamicOffsetRegister);
+                control = new Gen5ScalarMemoryControl(count, offset, scalarOffset);
                 break;
             }
             case Gen5ShaderEncoding.Vop1:

src/SharpEmu.Libs/Agc/Gen5SpirvTranslator.Alu.cs

@@ -38,7 +38,9 @@ internal static partial class Gen5SpirvTranslator
                     break;
                 case "VCndmaskB32":
                 {
-                    var condition = Load(_boolType, _vcc);
+                    var condition = instruction.Sources.Count > 2
+                        ? IsCurrentLaneSet(GetRawSource64(instruction, 2))
+                        : Load(_boolType, _vcc);
                     result = _module.AddInstruction(
                         SpirvOp.Select,
                         _uintType,
@@ -131,9 +133,7 @@ internal static partial class Gen5SpirvTranslator
                         SpirvOp.ConvertFToU,
                         _uintType,
                         GetFloatSource(instruction, 0));
-                    var offset = _module.AddInstruction(
+                    var offset = ShiftLeftLogical(
-                        SpirvOp.ShiftLeftLogical,
-                        _uintType,
                         BitwiseAnd(GetRawSource(instruction, 1), UInt(3)),
                         UInt(3));
                     result = _module.AddInstruction(
@@ -212,12 +212,26 @@ internal static partial class Gen5SpirvTranslator
                 case "VSinF32":
                     result = EmitFloatResult(
                         instruction,
-                        Ext(13, _floatType, GetFloatSource(instruction, 0)));
+                        Ext(
+                            13,
+                            _floatType,
+                            _module.AddInstruction(
+                                SpirvOp.FMul,
+                                _floatType,
+                                GetFloatSource(instruction, 0),
+                                Float(MathF.Tau))));
                     break;
                 case "VCosF32":
                     result = EmitFloatResult(
                         instruction,
-                        Ext(14, _floatType, GetFloatSource(instruction, 0)));
+                        Ext(
+                            14,
+                            _floatType,
+                            _module.AddInstruction(
+                                SpirvOp.FMul,
+                                _floatType,
+                                GetFloatSource(instruction, 0),
+                                Float(MathF.Tau))));
                     break;
                 case "VAddF32":
                     result = EmitFloatBinary(instruction, SpirvOp.FAdd);
@@ -350,9 +364,7 @@ internal static partial class Gen5SpirvTranslator
                     result = _module.AddInstruction(
                         SpirvOp.UConvert,
                         _uintType,
-                        _module.AddInstruction(
+                        ShiftRightLogical64(
-                            SpirvOp.ShiftRightLogical,
-                            _ulongType,
                             product,
                             _module.Constant64(_ulongType, 32)));
                     break;
@@ -415,21 +427,12 @@ internal static partial class Gen5SpirvTranslator
                     var reverse = instruction.Opcode == "VAshrrevI32";
                     var left = GetRawSource(instruction, reverse ? 1 : 0);
                     var right = GetRawSource(instruction, reverse ? 0 : 1);
-                    right = BitwiseAnd(right, UInt(31));
+                    result = ShiftRightArithmetic(left, right);
-                    result = Bitcast(
-                        _uintType,
-                        _module.AddInstruction(
-                            SpirvOp.ShiftRightArithmetic,
-                            _intType,
-                            Bitcast(_intType, left),
-                            right));
                     break;
                 }
                 case "VLshlAddU32":
                 {
-                    var shifted = _module.AddInstruction(
+                    var shifted = ShiftLeftLogical(
-                        SpirvOp.ShiftLeftLogical,
-                        _uintType,
                         GetRawSource(instruction, 0),
                         BitwiseAnd(GetRawSource(instruction, 1), UInt(31)));
                     result = IAdd(shifted, GetRawSource(instruction, 2));
@@ -437,9 +440,7 @@ internal static partial class Gen5SpirvTranslator
                 }
                 case "VLshlOrU32":
                 {
-                    var shifted = _module.AddInstruction(
+                    var shifted = ShiftLeftLogical(
-                        SpirvOp.ShiftLeftLogical,
-                        _uintType,
                         GetRawSource(instruction, 0),
                         BitwiseAnd(GetRawSource(instruction, 1), UInt(31)));
                     result = BitwiseOr(
@@ -472,11 +473,7 @@ internal static partial class Gen5SpirvTranslator
                     var added = IAdd(
                         GetRawSource(instruction, 0),
                         GetRawSource(instruction, 1));
-                    result = _module.AddInstruction(
+                    result = ShiftLeftLogical(added, GetRawSource(instruction, 2));
-                        SpirvOp.ShiftLeftLogical,
-                        _uintType,
-                        added,
-                        BitwiseAnd(GetRawSource(instruction, 2), UInt(31)));
                     break;
                 }
                 case "VAdd3U32":
@@ -652,13 +649,29 @@ internal static partial class Gen5SpirvTranslator
                         width);
                     break;
                 }
+                case "VBfiB32":
+                {
+                    var mask = GetRawSource(instruction, 0);
+                    var insert = GetRawSource(instruction, 1);
+                    var source = GetRawSource(instruction, 2);
+                    result = _module.AddInstruction(
+                        SpirvOp.BitwiseOr,
+                        _uintType,
+                        BitwiseAnd(mask, insert),
+                        BitwiseAnd(
+                            _module.AddInstruction(SpirvOp.Not, _uintType, mask),
+                            source));
+                    break;
+                }
                 case "VCvtPkrtzF16F32":
                 {
+                    var first = TruncateFloat32ForPack(GetFloatSource(instruction, 0));
+                    var second = TruncateFloat32ForPack(GetFloatSource(instruction, 1));
                     var vector = _module.AddInstruction(
                         SpirvOp.CompositeConstruct,
                         _vec2Type,
-                        GetFloatSource(instruction, 0),
+                        first,
-                        GetFloatSource(instruction, 1));
+                        second);
                     result = Ext(58, _uintType, vector);
                     break;
                 }
@@ -857,7 +870,7 @@ internal static partial class Gen5SpirvTranslator
                 condition = _module.AddInstruction(operation, _boolType, left, right);
             }
 
-            Store(_vcc, condition);
+            StoreWaveMask(106, condition);
             if (opcode.StartsWith("VCmpx", StringComparison.Ordinal))
             {
                 var active = _module.AddInstruction(
@@ -865,7 +878,7 @@ internal static partial class Gen5SpirvTranslator
                     _boolType,
                     Load(_boolType, _exec),
                     condition);
-                Store(_exec, active);
+                StoreWaveMask(126, active);
             }
 
             return true;
@@ -930,7 +943,7 @@ internal static partial class Gen5SpirvTranslator
             }
 
             if (instruction.Opcode.EndsWith("B64", StringComparison.Ordinal) ||
-                instruction.Opcode == "SWqmB64")
+                instruction.Opcode is "SWqmB64" or "SBfeU64" or "SBfeI64")
             {
                 return TryEmitScalar64(instruction, destination, out error);
             }
@@ -962,6 +975,16 @@ internal static partial class Gen5SpirvTranslator
                     StoreS(destination, result);
                     Store(_scc, IsNotZero(result));
                     return true;
+                case "SBitset1B32":
+                    result = _module.AddInstruction(
+                        SpirvOp.BitFieldInsert,
+                        _uintType,
+                        LoadS(destination),
+                        UInt(1),
+                        BitwiseAnd(left, UInt(31)),
+                        UInt(1));
+                    StoreS(destination, result);
+                    return true;
                 default:
                 {
                     if (instruction.Sources.Count < 2)
@@ -988,13 +1011,14 @@ internal static partial class Gen5SpirvTranslator
                                 left,
                                 right);
                             Store(_scc, _module.AddInstruction(
-                                SpirvOp.UGreaterThanEqual,
+                                SpirvOp.UGreaterThan,
                                 _boolType,
-                                left,
+                                right,
-                                right));
+                                left));
                             break;
                         case "SAddI32":
                             result = IAdd(left, right);
+                            Store(_scc, SignedAddOverflow(left, right, result));
                             break;
                         case "SSubI32":
                             result = _module.AddInstruction(
@@ -1002,6 +1026,7 @@ internal static partial class Gen5SpirvTranslator
                                 _uintType,
                                 left,
                                 right);
+                            Store(_scc, SignedSubOverflow(left, right, result));
                             break;
                         case "SAddcU32":
                         {
@@ -1038,8 +1063,8 @@ internal static partial class Gen5SpirvTranslator
                                 SpirvOp.Select,
                                 _uintType,
                                 Load(_boolType, _scc),
-                                UInt(0),
+                                UInt(1),
-                                UInt(1));
+                                UInt(0));
                             var partial = _module.AddInstruction(
                                 SpirvOp.ISub,
                                 _uintType,
@@ -1050,23 +1075,31 @@ internal static partial class Gen5SpirvTranslator
                                 _uintType,
                                 partial,
                                 borrow);
-                            var firstNoBorrow = _module.AddInstruction(
+                            var firstBorrow = _module.AddInstruction(
-                                SpirvOp.UGreaterThanEqual,
+                                SpirvOp.UGreaterThan,
                                 _boolType,
-                                left,
+                                right,
-                                right);
+                                left);
-                            var secondNoBorrow = _module.AddInstruction(
+                            var secondBorrow = _module.AddInstruction(
-                                SpirvOp.UGreaterThanEqual,
+                                SpirvOp.LogicalAnd,
                                 _boolType,
-                                partial,
+                                _module.AddInstruction(
-                                borrow);
+                                    SpirvOp.IEqual,
+                                    _boolType,
+                                    borrow,
+                                    UInt(1)),
+                                _module.AddInstruction(
+                                    SpirvOp.IEqual,
+                                    _boolType,
+                                    right,
+                                    left));
                             Store(
                                 _scc,
                                 _module.AddInstruction(
-                                    SpirvOp.LogicalAnd,
+                                    SpirvOp.LogicalOr,
                                     _boolType,
-                                    firstNoBorrow,
+                                    firstBorrow,
-                                    secondNoBorrow));
+                                    secondBorrow));
                             break;
                         }
                         case "SMulI32":
@@ -1078,6 +1111,7 @@ internal static partial class Gen5SpirvTranslator
                             break;
                         case "SAndB32":
                             result = BitwiseAnd(left, right);
+                            Store(_scc, IsNotZero(result));
                             break;
                         case "SOrB32":
                             result = _module.AddInstruction(
@@ -1085,6 +1119,7 @@ internal static partial class Gen5SpirvTranslator
                                 _uintType,
                                 left,
                                 right);
+                            Store(_scc, IsNotZero(result));
                             break;
                         case "SXorB32":
                             result = _module.AddInstruction(
@@ -1092,32 +1127,64 @@ internal static partial class Gen5SpirvTranslator
                                 _uintType,
                                 left,
                                 right);
+                            Store(_scc, IsNotZero(result));
                             break;
                         case "SAndn2B32":
                             result = BitwiseAnd(
                                 left,
                                 _module.AddInstruction(SpirvOp.Not, _uintType, right));
+                            Store(_scc, IsNotZero(result));
                             break;
-                        case "SLshlB32":
+                        case "SOrn2B32":
                             result = _module.AddInstruction(
-                                SpirvOp.ShiftLeftLogical,
+                                SpirvOp.BitwiseOr,
                                 _uintType,
                                 left,
-                                BitwiseAnd(right, UInt(31)));
+                                _module.AddInstruction(SpirvOp.Not, _uintType, right));
+                            Store(_scc, IsNotZero(result));
+                            break;
+                        case "SNandB32":
+                            result = _module.AddInstruction(
+                                SpirvOp.Not,
+                                _uintType,
+                                BitwiseAnd(left, right));
+                            Store(_scc, IsNotZero(result));
+                            break;
+                        case "SNorB32":
+                            result = _module.AddInstruction(
+                                SpirvOp.Not,
+                                _uintType,
+                                _module.AddInstruction(
+                                    SpirvOp.BitwiseOr,
+                                    _uintType,
+                                    left,
+                                    right));
+                            Store(_scc, IsNotZero(result));
+                            break;
+                        case "SXnorB32":
+                            result = _module.AddInstruction(
+                                SpirvOp.Not,
+                                _uintType,
+                                _module.AddInstruction(
+                                    SpirvOp.BitwiseXor,
+                                    _uintType,
+                                    left,
+                                    right));
+                            Store(_scc, IsNotZero(result));
+                            break;
+                        case "SLshlB32":
+                            result = ShiftLeftLogical(left, right);
+                            Store(_scc, IsNotZero(result));
                             break;
                         case "SLshrB32":
                             result = ShiftRightLogical(
                                 left,
                                 BitwiseAnd(right, UInt(31)));
+                            Store(_scc, IsNotZero(result));
                             break;
                         case "SAshrI32":
-                            result = Bitcast(
+                            result = ShiftRightArithmetic(left, right);
-                                _uintType,
+                            Store(_scc, IsNotZero(result));
-                                _module.AddInstruction(
-                                    SpirvOp.ShiftRightArithmetic,
-                                    _intType,
-                                    Bitcast(_intType, left),
-                                    BitwiseAnd(right, UInt(31))));
                             break;
                         case "SBfmB32":
                             result = _module.AddInstruction(
@@ -1160,6 +1227,7 @@ internal static partial class Gen5SpirvTranslator
                                     left,
                                     offset,
                                     width);
+                            Store(_scc, IsNotZero(result));
                             break;
                         }
                         case "SCselectB32":
@@ -1172,9 +1240,47 @@ internal static partial class Gen5SpirvTranslator
                             break;
                         case "SMinU32":
                             result = Ext(38, _uintType, left, right);
+                            Store(
+                                _scc,
+                                _module.AddInstruction(
+                                    SpirvOp.ULessThan,
+                                    _boolType,
+                                    left,
+                                    right));
+                            break;
+                        case "SMinI32":
+                            result = Bitcast(
+                                _uintType,
+                                Ext(39, _intType, Bitcast(_intType, left), Bitcast(_intType, right)));
+                            Store(
+                                _scc,
+                                _module.AddInstruction(
+                                    SpirvOp.SLessThan,
+                                    _boolType,
+                                    Bitcast(_intType, left),
+                                    Bitcast(_intType, right)));
                             break;
                         case "SMaxU32":
                             result = Ext(41, _uintType, left, right);
+                            Store(
+                                _scc,
+                                _module.AddInstruction(
+                                    SpirvOp.UGreaterThan,
+                                    _boolType,
+                                    left,
+                                    right));
+                            break;
+                        case "SMaxI32":
+                            result = Bitcast(
+                                _uintType,
+                                Ext(42, _intType, Bitcast(_intType, left), Bitcast(_intType, right)));
+                            Store(
+                                _scc,
+                                _module.AddInstruction(
+                                    SpirvOp.SGreaterThan,
+                                    _boolType,
+                                    Bitcast(_intType, left),
+                                    Bitcast(_intType, right)));
                             break;
                         case "SLshl1AddU32":
                         case "SLshl2AddU32":
@@ -1183,11 +1289,7 @@ internal static partial class Gen5SpirvTranslator
                         {
                             var shift = (uint)(instruction.Opcode[5] - '0');
                             result = IAdd(
-                                _module.AddInstruction(
+                                ShiftLeftLogical(left, UInt(shift)),
-                                    SpirvOp.ShiftLeftLogical,
-                                    _uintType,
-                                    left,
-                                    UInt(shift)),
                                 right);
                             break;
                         }
@@ -1312,7 +1414,7 @@ internal static partial class Gen5SpirvTranslator
             var left = GetRawSource64(instruction, 0);
             if (instruction.Opcode.EndsWith("SaveexecB64", StringComparison.Ordinal))
             {
-                var oldExec = LoadS64(126);
+                var oldExec = BooleanToLaneMask(Load(_boolType, _exec));
                 var notLeft = _module.AddInstruction(SpirvOp.Not, _ulongType, left);
                 var newExec = instruction.Opcode switch
                 {
@@ -1323,17 +1425,55 @@ internal static partial class Gen5SpirvTranslator
                     "SXorSaveexecB64" => _module.AddInstruction(
                         SpirvOp.BitwiseXor, _ulongType, oldExec, left),
                     "SAndn2SaveexecB64" => _module.AddInstruction(
-                        SpirvOp.BitwiseAnd, _ulongType, oldExec, notLeft),
-                    "SAndn1SaveexecB64" => _module.AddInstruction(
                         SpirvOp.BitwiseAnd,
                         _ulongType,
+                        left,
                         _module.AddInstruction(
                             SpirvOp.Not,
                             _ulongType,
-                            oldExec),
+                            oldExec)),
-                        left),
+                    "SAndn1SaveexecB64" => _module.AddInstruction(
+                        SpirvOp.BitwiseAnd,
+                        _ulongType,
+                        notLeft,
+                        oldExec),
+                    "SOrn1SaveexecB64" => _module.AddInstruction(
+                        SpirvOp.BitwiseOr,
+                        _ulongType,
+                        notLeft,
+                        oldExec),
                     "SOrn2SaveexecB64" => _module.AddInstruction(
-                        SpirvOp.BitwiseOr, _ulongType, oldExec, notLeft),
+                        SpirvOp.BitwiseOr,
+                        _ulongType,
+                        left,
+                        _module.AddInstruction(
+                            SpirvOp.Not,
+                            _ulongType,
+                            oldExec)),
+                    "SNandSaveexecB64" => _module.AddInstruction(
+                        SpirvOp.Not,
+                        _ulongType,
+                        _module.AddInstruction(
+                            SpirvOp.BitwiseAnd,
+                            _ulongType,
+                            left,
+                            oldExec)),
+                    "SNorSaveexecB64" => _module.AddInstruction(
+                        SpirvOp.Not,
+                        _ulongType,
+                        _module.AddInstruction(
+                            SpirvOp.BitwiseOr,
+                            _ulongType,
+                            left,
+                            oldExec)),
+                    "SXnorSaveexecB64" => _module.AddInstruction(
+                        SpirvOp.Not,
+                        _ulongType,
+                        _module.AddInstruction(
+                            SpirvOp.BitwiseXor,
+                            _ulongType,
+                            left,
+                            oldExec)),
                     _ => 0u,
                 };
                 if (newExec == 0)
@@ -1345,7 +1485,6 @@ internal static partial class Gen5SpirvTranslator
 
                 StoreS64(destination, oldExec);
                 StoreS64(126, newExec);
-                Store(_exec, IsNotZero64(newExec));
                 Store(_scc, IsNotZero64(newExec));
                 return true;
             }
@@ -1361,19 +1500,108 @@ internal static partial class Gen5SpirvTranslator
                 var shift = _module.AddInstruction(
                     SpirvOp.UConvert,
                     _ulongType,
-                    BitwiseAnd(GetRawSource(instruction, 1), UInt(63)));
+                    GetRawSource(instruction, 1));
-                var shiftedValue = _module.AddInstruction(
+                var shiftedValue = instruction.Opcode == "SLshlB64"
-                    instruction.Opcode == "SLshlB64"
+                    ? ShiftLeftLogical64(left, shift)
-                        ? SpirvOp.ShiftLeftLogical
+                    : ShiftRightLogical64(left, shift);
-                        : SpirvOp.ShiftRightLogical,
-                    _ulongType,
-                    left,
-                    shift);
                 StoreS64(destination, shiftedValue);
                 Store(_scc, IsNotZero64(shiftedValue));
                 return true;
             }
 
+            if (instruction.Opcode is "SBfeU64" or "SBfeI64")
+            {
+                if (instruction.Sources.Count < 2)
+                {
+                    error = "missing scalar 64-bit bitfield source";
+                    return false;
+                }
+
+                var control = GetRawSource(instruction, 1);
+                var offset = BitwiseAnd(control, UInt(63));
+                var requestedWidth = BitwiseAnd(
+                    ShiftRightLogical(control, UInt(16)),
+                    UInt(0x7F));
+                var remaining = _module.AddInstruction(
+                    SpirvOp.ISub,
+                    _uintType,
+                    UInt(64),
+                    offset);
+                var width = Ext(
+                    38,
+                    _uintType,
+                    requestedWidth,
+                    remaining);
+                var offset64 = _module.AddInstruction(
+                    SpirvOp.UConvert,
+                    _ulongType,
+                    offset);
+                var width64 = _module.AddInstruction(
+                    SpirvOp.UConvert,
+                    _ulongType,
+                    width);
+                var one64 = _module.Constant64(_ulongType, 1);
+                var shifted = ShiftRightLogical64(left, offset64);
+                var partialMask = _module.AddInstruction(
+                    SpirvOp.ISub,
+                    _ulongType,
+                    ShiftLeftLogical64(one64, width64),
+                    one64);
+                var fullWidth = _module.AddInstruction(
+                    SpirvOp.IEqual,
+                    _boolType,
+                    width,
+                    UInt(64));
+                var mask = _module.AddInstruction(
+                    SpirvOp.Select,
+                    _ulongType,
+                    fullWidth,
+                    _module.Constant64(_ulongType, ulong.MaxValue),
+                    partialMask);
+                var extracted = _module.AddInstruction(
+                    SpirvOp.BitwiseAnd,
+                    _ulongType,
+                    shifted,
+                    mask);
+                if (instruction.Opcode == "SBfeI64")
+                {
+                    var signShift = _module.AddInstruction(
+                        SpirvOp.ISub,
+                        _uintType,
+                        width,
+                        UInt(1));
+                    var signBit = ShiftLeftLogical64(
+                        one64,
+                        _module.AddInstruction(
+                            SpirvOp.UConvert,
+                            _ulongType,
+                            signShift));
+                    var signExtended = _module.AddInstruction(
+                        SpirvOp.ISub,
+                        _ulongType,
+                        _module.AddInstruction(
+                            SpirvOp.BitwiseXor,
+                            _ulongType,
+                            extracted,
+                            signBit),
+                        signBit);
+                    extracted = _module.AddInstruction(
+                        SpirvOp.Select,
+                        _ulongType,
+                        _module.AddInstruction(
+                            SpirvOp.IEqual,
+                            _boolType,
+                            width,
+                            UInt(0)),
+                        _module.Constant64(_ulongType, 0),
+                        signExtended);
+                }
+
+                StoreS64(destination, extracted);
+                Store(_scc, IsNotZero64(extracted));
+                return true;
+            }
+
             uint value;
             if (instruction.Opcode is "SMovB64" or "SWqmB64")
             {
@@ -1451,9 +1679,20 @@ internal static partial class Gen5SpirvTranslator
             }
 
             StoreS64(destination, value);
-            if (destination == 126)
+            if (instruction.Opcode is
+                "SNotB64" or
+                "SAndB64" or
+                "SOrB64" or
+                "SXorB64" or
+                "SAndn1B64" or
+                "SAndn2B64" or
+                "SOrn1B64" or
+                "SOrn2B64" or
+                "SNandB64" or
+                "SNorB64" or
+                "SXnorB64")
             {
-                Store(_exec, IsNotZero64(value));
+                Store(_scc, IsNotZero64(value));
             }
 
             return true;
@@ -1472,14 +1711,6 @@ internal static partial class Gen5SpirvTranslator
             uint value = operand.Kind switch
             {
                 Gen5OperandKind.VectorRegister => LoadV(operand.Value),
-                Gen5OperandKind.ScalarRegister when operand.Value == 106 =>
-                    _module.AddInstruction(
-                        SpirvOp.Select,
-                        _uintType,
-                        Load(_boolType, _vcc),
-                        UInt(1),
-                        UInt(0)),
-                Gen5OperandKind.ScalarRegister when operand.Value == 107 => UInt(0),
                 Gen5OperandKind.ScalarRegister => LoadS(operand.Value),
                 Gen5OperandKind.LiteralConstant => UInt(operand.Value),
                 Gen5OperandKind.EncodedConstant when TryDecodeInlineConstant(
@@ -1584,11 +1815,7 @@ internal static partial class Gen5SpirvTranslator
                 SpirvOp.UConvert,
                 _ulongType,
                 LoadS(register + 1));
-            high = _module.AddInstruction(
+            high = ShiftLeftLogical64(high, _module.Constant64(_ulongType, 32));
-                SpirvOp.ShiftLeftLogical,
-                _ulongType,
-                high,
-                _module.Constant64(_ulongType, 32));
             return _module.AddInstruction(SpirvOp.BitwiseOr, _ulongType, low, high);
         }
 
@@ -1597,9 +1824,7 @@ internal static partial class Gen5SpirvTranslator
             StoreS(
                 register,
                 _module.AddInstruction(SpirvOp.UConvert, _uintType, value));
-            var high = _module.AddInstruction(
+            var high = ShiftRightLogical64(
-                SpirvOp.ShiftRightLogical,
-                _ulongType,
                 value,
                 _module.Constant64(_ulongType, 32));
             StoreS(
@@ -1651,12 +1876,19 @@ internal static partial class Gen5SpirvTranslator
         {
             var left = GetRawSource(instruction, reverse ? 1 : 0);
             var right = GetRawSource(instruction, reverse ? 0 : 1);
-            if (operation is
+            if (operation == SpirvOp.ShiftLeftLogical)
-                SpirvOp.ShiftLeftLogical or
-                SpirvOp.ShiftRightLogical or
-                SpirvOp.ShiftRightArithmetic)
             {
-                right = BitwiseAnd(right, UInt(31));
+                return ShiftLeftLogical(left, right);
+            }
+
+            if (operation == SpirvOp.ShiftRightLogical)
+            {
+                return ShiftRightLogical(left, right);
+            }
+
+            if (operation == SpirvOp.ShiftRightArithmetic)
+            {
+                return ShiftRightArithmetic(left, right);
             }
 
             return _module.AddInstruction(operation, _uintType, left, right);
@@ -1881,7 +2113,7 @@ internal static partial class Gen5SpirvTranslator
                 _boolType,
                 _module.AddInstruction(SpirvOp.ULessThan, _boolType, partial, left),
                 _module.AddInstruction(SpirvOp.ULessThan, _boolType, result, partial));
-            Store(_vcc, carry);
+            StoreWaveMask(106, carry);
             return result;
         }
 
@@ -1912,7 +2144,7 @@ internal static partial class Gen5SpirvTranslator
                     _boolType,
                     partial,
                     borrowIn));
-            Store(_vcc, borrow);
+            StoreWaveMask(106, borrow);
             return result;
         }
 
@@ -1932,13 +2164,13 @@ internal static partial class Gen5SpirvTranslator
                         UInt(0)));
                 if (register == 106)
                 {
-                    Store(_vcc, carry);
+                    StoreWaveMask(106, carry);
                 }
 
                 return;
             }
 
-            Store(_vcc, carry);
+            StoreWaveMask(106, carry);
         }
 
         private uint EmitPermlane16(
@@ -1955,21 +2187,13 @@ internal static partial class Gen5SpirvTranslator
                 _boolType,
                 localLane,
                 UInt(8));
-            var lowShift = _module.AddInstruction(
+            var lowShift = ShiftLeftLogical(localLane, UInt(2));
-                SpirvOp.ShiftLeftLogical,
-                _uintType,
-                localLane,
-                UInt(2));
             var highLane = _module.AddInstruction(
                 SpirvOp.ISub,
                 _uintType,
                 localLane,
                 UInt(8));
-            var highShift = _module.AddInstruction(
+            var highShift = ShiftLeftLogical(highLane, UInt(2));
-                SpirvOp.ShiftLeftLogical,
-                _uintType,
-                highLane,
-                UInt(2));
             var lowSelector = BitwiseAnd(
                 ShiftRightLogical(selectorLow, lowShift),
                 UInt(15));
@@ -2030,6 +2254,14 @@ internal static partial class Gen5SpirvTranslator
             return Bitcast(_uintType, value);
         }
 
+        private uint TruncateFloat32ForPack(uint value)
+        {
+            var raw = BitwiseAnd(
+                Bitcast(_uintType, value),
+                UInt(0xFFFF_E000));
+            return Bitcast(_floatType, raw);
+        }
+
         private uint Ext(uint operation, uint resultType, params uint[] operands)
         {
             var values = new uint[2 + operands.Length];
@@ -2049,6 +2281,53 @@ internal static partial class Gen5SpirvTranslator
                 value,
                 _module.Constant64(_ulongType, 0));
 
+        private uint SignBit(uint value) =>
+            ShiftRightLogical(value, UInt(31));
+
+        private uint SignedAddOverflow(uint left, uint right, uint result)
+        {
+            var leftSign = SignBit(left);
+            var rightSign = SignBit(right);
+            var resultSign = SignBit(result);
+            var sameSourceSign = _module.AddInstruction(
+                SpirvOp.IEqual,
+                _boolType,
+                leftSign,
+                rightSign);
+            var resultSignChanged = _module.AddInstruction(
+                SpirvOp.INotEqual,
+                _boolType,
+                leftSign,
+                resultSign);
+            return _module.AddInstruction(
+                SpirvOp.LogicalAnd,
+                _boolType,
+                sameSourceSign,
+                resultSignChanged);
+        }
+
+        private uint SignedSubOverflow(uint left, uint right, uint result)
+        {
+            var leftSign = SignBit(left);
+            var rightSign = SignBit(right);
+            var resultSign = SignBit(result);
+            var differentSourceSign = _module.AddInstruction(
+                SpirvOp.INotEqual,
+                _boolType,
+                leftSign,
+                rightSign);
+            var resultSignChanged = _module.AddInstruction(
+                SpirvOp.INotEqual,
+                _boolType,
+                leftSign,
+                resultSign);
+            return _module.AddInstruction(
+                SpirvOp.LogicalAnd,
+                _boolType,
+                differentSourceSign,
+                resultSignChanged);
+        }
+
         private static bool TryDecodeInlineConstant(uint encoded, out uint value)
         {
             if (encoded == 125)

src/SharpEmu.Libs/Agc/Gen5SpirvTranslator.cs

@@ -8,6 +8,7 @@ internal static partial class Gen5SpirvTranslator
     private const uint ScalarRegisterCount = 256;
     private const uint VectorRegisterCount = 512;
     private const uint LdsDwordCount = 8192;
+    private const uint RdnaWaveLaneCount = 32;
 
     public static bool TryCompilePixelShader(
         Gen5ShaderState state,
@@ -95,6 +96,7 @@ internal static partial class Gen5SpirvTranslator
         private readonly List<uint> _interfaces = [];
         private readonly Dictionary<uint, uint> _pixelInputs = [];
         private readonly Dictionary<uint, uint> _vertexOutputs = [];
+        private readonly Dictionary<uint, SpirvVertexInput> _vertexInputsByPc = [];
         private readonly List<SpirvImageResource> _imageResources = [];
         private readonly Dictionary<uint, int> _imageBindingByPc = [];
         private readonly Dictionary<uint, int> _bufferBindingByPc = [];
@@ -102,6 +104,7 @@ internal static partial class Gen5SpirvTranslator
         private uint _boolType;
         private uint _uintType;
         private uint _intType;
+        private uint _longType;
         private uint _ulongType;
         private uint _floatType;
         private uint _vec2Type;
@@ -149,6 +152,11 @@ internal static partial class Gen5SpirvTranslator
             ImageComponentKind ComponentKind,
             bool IsStorage);
 
+        private readonly record struct SpirvVertexInput(
+            uint Variable,
+            uint Type,
+            uint ComponentCount);
+
         public CompilationContext(
             Gen5SpirvStage stage,
             Gen5ShaderState state,
@@ -282,7 +290,10 @@ internal static partial class Gen5SpirvTranslator
                     _module.Build(),
                     _evaluation.GlobalMemoryBindings,
                     _evaluation.ImageBindings,
-                    attributeCount);
+                    attributeCount,
+                    _stage == Gen5SpirvStage.Vertex
+                        ? _evaluation.VertexInputs ?? []
+                        : []);
                 return true;
             }
             catch (Exception exception)
@@ -297,10 +308,31 @@ internal static partial class Gen5SpirvTranslator
             _module.AddCapability(SpirvCapability.Shader);
             _module.AddCapability(SpirvCapability.Int64);
             _module.AddCapability(SpirvCapability.ImageQuery);
-            if (UsesSubgroupShuffle())
+            if (_evaluation.ImageBindings.Any(
+                    static binding =>
+                        (binding.Opcode.StartsWith(
+                             "ImageSample",
+                             StringComparison.Ordinal) ||
+                         binding.Opcode.StartsWith(
+                             "ImageGather4",
+                             StringComparison.Ordinal)) &&
+                        binding.Opcode.EndsWith("O", StringComparison.Ordinal)))
+            {
+                _module.AddCapability(SpirvCapability.ImageGatherExtended);
+            }
+
+            if (UsesSubgroupOperations())
             {
                 _module.AddCapability(SpirvCapability.GroupNonUniform);
-                _module.AddCapability(SpirvCapability.GroupNonUniformShuffle);
+                if (UsesSubgroupShuffle())
+                {
+                    _module.AddCapability(SpirvCapability.GroupNonUniformShuffle);
+                }
+
+                if (UsesWaveControl())
+                {
+                    _module.AddCapability(SpirvCapability.GroupNonUniformVote);
+                }
             }
 
             _glsl = _module.ImportExtInst("GLSL.std.450");
@@ -308,6 +340,7 @@ internal static partial class Gen5SpirvTranslator
             _boolType = _module.TypeBool();
             _uintType = _module.TypeInt(32, signed: false);
             _intType = _module.TypeInt(32, signed: true);
+            _longType = _module.TypeInt(64, signed: true);
             _ulongType = _module.TypeInt(64, signed: false);
             _floatType = _module.TypeFloat(32);
             _vec2Type = _module.TypeVector(_floatType, 2);
@@ -379,10 +412,6 @@ internal static partial class Gen5SpirvTranslator
             }
 
             var ldsArrayType = _module.TypeArray(_uintType, LdsDwordCount);
-            _module.AddDecoration(
-                ldsArrayType,
-                SpirvDecoration.ArrayStride,
-                sizeof(uint));
             var ldsPointer =
                 _module.TypePointer(SpirvStorageClass.Workgroup, ldsArrayType);
             _workgroupUintPointer =
@@ -438,9 +467,6 @@ internal static partial class Gen5SpirvTranslator
                 _imageBindingByPc.TryAdd(binding.Pc, index);
                 var isStorage =
                     Gen5ShaderTranslator.IsStorageImageOperation(binding.Opcode);
-                var isDepth =
-                    binding.Opcode.Contains("SampleC", StringComparison.Ordinal) ||
-                    binding.Opcode.Contains("Gather4C", StringComparison.Ordinal);
                 var (format, componentKind) =
                     DecodeImageFormat(binding.ResourceDescriptor);
                 var componentType = componentKind switch
@@ -456,11 +482,16 @@ internal static partial class Gen5SpirvTranslator
                     _module.AddCapability(
                         SpirvCapability.StorageImageWriteWithoutFormat);
                 }
+                else if (isStorage && RequiresExtendedStorageImageFormat(format))
+                {
+                    _module.AddCapability(
+                        SpirvCapability.StorageImageExtendedFormats);
+                }
 
                 var imageType = _module.TypeImage(
                     componentType,
                     SpirvImageDim.Dim2D,
-                    depth: isDepth,
+                    depth: false,
                     arrayed: false,
                     multisampled: false,
                     sampled: isStorage ? 2u : 1u,
@@ -493,6 +524,13 @@ internal static partial class Gen5SpirvTranslator
             }
         }
 
+        private static bool RequiresExtendedStorageImageFormat(
+            SpirvImageFormat format) =>
+            format is not SpirvImageFormat.Unknown and
+                not SpirvImageFormat.Rgba32f and
+                not SpirvImageFormat.Rgba32i and
+                not SpirvImageFormat.Rgba32ui;
+
         private static (SpirvImageFormat Format, ImageComponentKind Kind)
             DecodeImageFormat(IReadOnlyList<uint> descriptor)
         {
@@ -557,7 +595,7 @@ internal static partial class Gen5SpirvTranslator
 
         private void DeclareStageInterface()
         {
-            if (UsesSubgroupShuffle())
+            if (UsesSubgroupOperations())
             {
                 var subgroupPointer =
                     _module.TypePointer(SpirvStorageClass.Input, _uintType);
@@ -573,6 +611,8 @@ internal static partial class Gen5SpirvTranslator
 
             if (_stage == Gen5SpirvStage.Vertex)
             {
+                DeclareVertexInputs();
+
                 var inputPointer =
                     _module.TypePointer(SpirvStorageClass.Input, _uintType);
                 _vertexIndexInput = _module.AddGlobalVariable(
@@ -618,7 +658,6 @@ internal static partial class Gen5SpirvTranslator
                         outputPointer,
                         SpirvStorageClass.Output);
                     _module.AddDecoration(variable, SpirvDecoration.Location, parameter);
-                    _module.AddDecoration(variable, SpirvDecoration.NoPerspective);
                     _vertexOutputs.Add(parameter, variable);
                     _interfaces.Add(variable);
                 }
@@ -640,7 +679,6 @@ internal static partial class Gen5SpirvTranslator
                         inputVec4Pointer,
                         SpirvStorageClass.Input);
                     _module.AddDecoration(variable, SpirvDecoration.Location, attribute);
-                    _module.AddDecoration(variable, SpirvDecoration.NoPerspective);
                     _pixelInputs.Add(attribute, variable);
                     _interfaces.Add(variable);
                 }
@@ -691,6 +729,42 @@ internal static partial class Gen5SpirvTranslator
             }
         }
 
+        private void DeclareVertexInputs()
+        {
+            foreach (var input in _evaluation.VertexInputs ?? [])
+            {
+                var type = input.ComponentCount switch
+                {
+                    1u => _floatType,
+                    2u => _vec2Type,
+                    3u => _vec3Type,
+                    4u => _vec4Type,
+                    _ => 0u,
+                };
+                if (type == 0)
+                {
+                    continue;
+                }
+
+                var pointer = _module.TypePointer(SpirvStorageClass.Input, type);
+                var variable = _module.AddGlobalVariable(
+                    pointer,
+                    SpirvStorageClass.Input);
+                _module.AddName(variable, $"attr{input.Location}");
+                _module.AddDecoration(
+                    variable,
+                    SpirvDecoration.Location,
+                    input.Location);
+                _vertexInputsByPc.TryAdd(
+                    input.Pc,
+                    new SpirvVertexInput(
+                        variable,
+                        type,
+                        input.ComponentCount));
+                _interfaces.Add(variable);
+            }
+        }
+
         private void EmitInitialState()
         {
             for (uint index = 0;
@@ -706,8 +780,16 @@ internal static partial class Gen5SpirvTranslator
             }
 
             Store(_scc, _module.ConstantBool(false));
-            Store(_vcc, _module.ConstantBool(false));
+            if (_subgroupInvocationIdInput != 0)
-            Store(_exec, _module.ConstantBool(true));
+            {
+                StoreWaveMask(106, _module.ConstantBool(false));
+                StoreWaveMask(126, _module.ConstantBool(true));
+            }
+            else
+            {
+                Store(_vcc, _module.ConstantBool(false));
+                Store(_exec, _module.ConstantBool(true));
+            }
             Store(_programCounter, UInt(0));
             Store(_programActive, _module.ConstantBool(true));
 
@@ -923,10 +1005,10 @@ internal static partial class Gen5SpirvTranslator
             {
                 "SCbranchScc0" => LogicalNot(Load(_boolType, _scc)),
                 "SCbranchScc1" => Load(_boolType, _scc),
-                "SCbranchVccz" => LogicalNot(Load(_boolType, _vcc)),
+                "SCbranchVccz" => LogicalNot(SubgroupAny(Load(_boolType, _vcc))),
-                "SCbranchVccnz" => Load(_boolType, _vcc),
+                "SCbranchVccnz" => SubgroupAny(Load(_boolType, _vcc)),
-                "SCbranchExecz" => LogicalNot(Load(_boolType, _exec)),
+                "SCbranchExecz" => LogicalNot(SubgroupAny(Load(_boolType, _exec))),
-                "SCbranchExecnz" => Load(_boolType, _exec),
+                "SCbranchExecnz" => SubgroupAny(Load(_boolType, _exec)),
                 _ => 0,
             };
             return condition != 0;
@@ -1269,6 +1351,19 @@ internal static partial class Gen5SpirvTranslator
             out string error)
         {
             error = string.Empty;
+            if (_stage == Gen5SpirvStage.Vertex &&
+                _vertexInputsByPc.TryGetValue(instruction.Pc, out var vertexInput))
+            {
+                return TryEmitVertexInputFetch(control, vertexInput, out error);
+            }
+
+            if (_stage == Gen5SpirvStage.Vertex &&
+                IsFormatBufferLoad(instruction.Opcode))
+            {
+                error = $"missing vertex input for {instruction.Opcode} pc=0x{instruction.Pc:X}";
+                return false;
+            }
+
             if (!_bufferBindingByPc.TryGetValue(instruction.Pc, out var bindingIndex))
             {
                 error = "missing buffer-memory binding";
@@ -1297,30 +1392,39 @@ internal static partial class Gen5SpirvTranslator
 
             if (instruction.Opcode == "BufferAtomicAdd")
             {
-                var original = _module.AddInstruction(
+                EmitExecConditional(() =>
-                    SpirvOp.AtomicIAdd,
-                    _uintType,
-                    BufferWordPointer(bindingIndex, dwordAddress),
-                    UInt(1),
-                    UInt(0x48),
-                    LoadV(control.VectorData));
-                if (control.Glc)
                 {
-                    StoreV(control.VectorData, original);
+                    var original = _module.AddInstruction(
-                }
+                        SpirvOp.AtomicIAdd,
+                        _uintType,
+                        BufferWordPointer(bindingIndex, dwordAddress),
+                        UInt(1),
+                        UInt(0x48),
+                        LoadV(control.VectorData));
+                    if (control.Glc)
+                    {
+                        StoreV(control.VectorData, original);
+                    }
+                });
 
                 return true;
             }
 
             if (instruction.Opcode.StartsWith("BufferStoreDword", StringComparison.Ordinal))
             {
-                for (uint index = 0; index < control.DwordCount; index++)
+                EmitExecConditional(() =>
                 {
-                    var address = index == 0
+                    for (uint index = 0; index < control.DwordCount; index++)
-                        ? dwordAddress
+                    {
-                        : IAdd(dwordAddress, UInt(index));
+                        var address = index == 0
-                    StoreBufferWord(bindingIndex, address, LoadV(control.VectorData + index));
+                            ? dwordAddress
-                }
+                            : IAdd(dwordAddress, UInt(index));
+                        StoreBufferWord(
+                            bindingIndex,
+                            address,
+                            LoadV(control.VectorData + index));
+                    }
+                });
 
                 return true;
             }
@@ -1345,6 +1449,41 @@ internal static partial class Gen5SpirvTranslator
             return true;
         }
 
+        private static bool IsFormatBufferLoad(string opcode) =>
+            opcode.StartsWith("BufferLoadFormat", StringComparison.Ordinal) ||
+            opcode.StartsWith("TBufferLoadFormat", StringComparison.Ordinal);
+
+        private bool TryEmitVertexInputFetch(
+            Gen5BufferMemoryControl control,
+            SpirvVertexInput input,
+            out string error)
+        {
+            error = string.Empty;
+            if (control.DwordCount == 0 ||
+                control.DwordCount > input.ComponentCount)
+            {
+                error =
+                    $"invalid vertex input fetch components={control.DwordCount} " +
+                    $"input={input.ComponentCount}";
+                return false;
+            }
+
+            var loaded = Load(input.Type, input.Variable);
+            for (uint component = 0; component < control.DwordCount; component++)
+            {
+                var value = input.ComponentCount == 1
+                    ? loaded
+                    : _module.AddInstruction(
+                        SpirvOp.CompositeExtract,
+                        _floatType,
+                        loaded,
+                        component);
+                StoreV(control.VectorData + component, Bitcast(_uintType, value));
+            }
+
+            return true;
+        }
+
         private bool TryEmitImage(
             Gen5ShaderInstruction instruction,
             Gen5ImageControl image,
@@ -1362,11 +1501,20 @@ internal static partial class Gen5SpirvTranslator
             var imageObject = Load(resource.ObjectType, resource.Variable);
             if (instruction.Opcode == "ImageGetResinfo")
             {
+                var queryImage = resource.IsStorage
+                    ? imageObject
+                    : _module.AddInstruction(
+                        SpirvOp.Image,
+                        resource.ImageType,
+                        imageObject);
                 var size = _module.AddInstruction(
-                    SpirvOp.ImageQuerySizeLod,
+                    resource.IsStorage
+                        ? SpirvOp.ImageQuerySize
+                        : SpirvOp.ImageQuerySizeLod,
                     _module.TypeVector(_intType, 2),
-                    imageObject,
+                    resource.IsStorage
-                    UInt(0));
+                        ? [queryImage]
+                        : [queryImage, UInt(0)]);
                 uint outputIndex = 0;
                 for (uint component = 0; component < 4; component++)
                 {
@@ -1449,11 +1597,12 @@ internal static partial class Gen5SpirvTranslator
                 }
                 else
                 {
-                    _module.AddStatement(
+                    EmitExecConditional(
-                        SpirvOp.ImageWrite,
+                        () => _module.AddStatement(
-                        imageObject,
+                            SpirvOp.ImageWrite,
-                        coordinates,
+                            imageObject,
-                        texel);
+                            coordinates,
+                            texel));
                 }
 
                 return true;
@@ -1476,10 +1625,14 @@ internal static partial class Gen5SpirvTranslator
                     ? BuildClampedIntegerCoordinates(image, 0, width, height)
                     : BuildIntegerCoordinates(image, 0);
                 var mipLevel = _evaluation.ImageBindings[bindingIndex].MipLevel ?? 0;
+                var fetchedImage = _module.AddInstruction(
+                    SpirvOp.Image,
+                    resource.ImageType,
+                    imageObject);
                 sampled = _module.AddInstruction(
                     SpirvOp.ImageFetch,
                     resource.VectorType,
-                    imageObject,
+                    fetchedImage,
                     coordinates,
                     2,
                     UInt(mipLevel));
@@ -1505,18 +1658,14 @@ internal static partial class Gen5SpirvTranslator
                 var offset = hasOffset ? BuildImageOffset(image, 0) : 0u;
                 var imageOperands =
                     (explicitLod ? 2u : 0u) | (hasOffset ? 0x10u : 0u);
+                var reference = hasCompare
+                    ? Bitcast(_floatType, LoadV(image.GetAddressRegister(hasOffset ? 1 : 0)))
+                    : 0u;
                 var operands = new List<uint>
                 {
                     imageObject,
                     coordinates,
                 };
-                if (hasCompare)
-                {
-                    operands.Add(
-                        Bitcast(
-                            _floatType,
-                            LoadV(image.GetAddressRegister(hasOffset ? 1 : 0))));
-                }
 
                 if (imageOperands != 0)
                 {
@@ -1533,29 +1682,14 @@ internal static partial class Gen5SpirvTranslator
                 }
 
                 sampled = _module.AddInstruction(
-                    hasCompare
+                    explicitLod
-                        ? explicitLod
+                        ? SpirvOp.ImageSampleExplicitLod
-                            ? SpirvOp.ImageSampleDrefExplicitLod
+                        : SpirvOp.ImageSampleImplicitLod,
-                            : SpirvOp.ImageSampleDrefImplicitLod
+                    resource.VectorType,
-                        : explicitLod
-                            ? SpirvOp.ImageSampleExplicitLod
-                            : SpirvOp.ImageSampleImplicitLod,
-                    hasCompare ? resource.ComponentType : resource.VectorType,
                     [.. operands]);
                 if (hasCompare)
                 {
-                    var scalar = sampled;
+                    sampled = EmitManualDepthCompare(resource, sampled, reference);
-                    sampled = _module.AddInstruction(
-                        SpirvOp.CompositeConstruct,
-                        resource.VectorType,
-                        scalar,
-                        scalar,
-                        scalar,
-                        resource.ComponentKind == ImageComponentKind.Float
-                            ? Float(1)
-                            : resource.ComponentKind == ImageComponentKind.Uint
-                                ? UInt(1)
-                                : _module.Constant(_intType, 1));
                 }
             }
             else if (instruction.Opcode.StartsWith(
@@ -1569,6 +1703,9 @@ internal static partial class Gen5SpirvTranslator
                 var start = (hasOffset ? 1 : 0) + (hasCompare ? 1 : 0);
                 var coordinates = BuildFloatCoordinates(image, start);
                 var offset = hasOffset ? BuildImageOffset(image, 0) : 0u;
+                var reference = hasCompare
+                    ? Bitcast(_floatType, LoadV(image.GetAddressRegister(hasOffset ? 1 : 0)))
+                    : 0u;
                 var operands = new List<uint>
                 {
                     imageObject,
@@ -1576,10 +1713,7 @@ internal static partial class Gen5SpirvTranslator
                 };
                 if (hasCompare)
                 {
-                    operands.Add(
+                    operands.Add(UInt(0));
-                        Bitcast(
-                            _floatType,
-                            LoadV(image.GetAddressRegister(hasOffset ? 1 : 0))));
                 }
                 else
                 {
@@ -1600,11 +1734,28 @@ internal static partial class Gen5SpirvTranslator
                 }
 
                 sampled = _module.AddInstruction(
-                    hasCompare
+                    SpirvOp.ImageGather,
-                        ? SpirvOp.ImageDrefGather
-                        : SpirvOp.ImageGather,
                     resource.VectorType,
                     [.. operands]);
+                if (hasCompare)
+                {
+                    var compared = new uint[4];
+                    for (var component = 0u; component < 4; component++)
+                    {
+                        var texel = _module.AddInstruction(
+                            SpirvOp.CompositeExtract,
+                            resource.ComponentType,
+                            sampled,
+                            component);
+                        compared[component] = EmitDepthCompareScalar(resource, texel, reference);
+                    }
+
+                    sampled = _module.AddInstruction(
+                        SpirvOp.CompositeConstruct,
+                        resource.VectorType,
+                        compared);
+                }
+
                 writeAllComponents = true;
             }
             else
@@ -1638,6 +1789,67 @@ internal static partial class Gen5SpirvTranslator
             return true;
         }
 
+        private uint EmitDepthCompareScalar(
+            SpirvImageResource resource,
+            uint texel,
+            uint reference)
+        {
+            var texelAsFloat = resource.ComponentKind switch
+            {
+                ImageComponentKind.Uint => _module.AddInstruction(
+                    SpirvOp.ConvertUToF, _floatType, texel),
+                ImageComponentKind.Sint => _module.AddInstruction(
+                    SpirvOp.ConvertSToF, _floatType, texel),
+                _ => texel,
+            };
+            var passes = _module.AddInstruction(
+                SpirvOp.FOrdLessThanEqual,
+                _boolType,
+                reference,
+                texelAsFloat);
+            return _module.AddInstruction(
+                SpirvOp.Select,
+                resource.ComponentType,
+                passes,
+                resource.ComponentKind switch
+                {
+                    ImageComponentKind.Uint => UInt(1),
+                    ImageComponentKind.Sint => _module.Constant(_intType, 1),
+                    _ => Float(1),
+                },
+                resource.ComponentKind switch
+                {
+                    ImageComponentKind.Uint => UInt(0),
+                    ImageComponentKind.Sint => _module.Constant(_intType, 0),
+                    _ => Float(0),
+                });
+        }
+
+        private uint EmitManualDepthCompare(
+            SpirvImageResource resource,
+            uint sampledVector,
+            uint reference)
+        {
+            var texel = _module.AddInstruction(
+                SpirvOp.CompositeExtract,
+                resource.ComponentType,
+                sampledVector,
+                0u);
+            var scalar = EmitDepthCompareScalar(resource, texel, reference);
+            return _module.AddInstruction(
+                SpirvOp.CompositeConstruct,
+                resource.VectorType,
+                scalar,
+                scalar,
+                scalar,
+                resource.ComponentKind switch
+                {
+                    ImageComponentKind.Uint => UInt(1),
+                    ImageComponentKind.Sint => _module.Constant(_intType, 1),
+                    _ => Float(1),
+                });
+        }
+
         private uint BuildFloatCoordinates(Gen5ImageControl image, int start)
         {
             var x = Bitcast(
@@ -1774,6 +1986,11 @@ internal static partial class Gen5SpirvTranslator
                 _boolType,
                 lowerInRange,
                 upperInRange);
+            inRange = _module.AddInstruction(
+                SpirvOp.LogicalAnd,
+                _boolType,
+                Load(_boolType, _exec),
+                inRange);
             var writeLabel = _module.AllocateId();
             var mergeLabel = _module.AllocateId();
             _module.AddStatement(SpirvOp.SelectionMerge, mergeLabel, 0);
@@ -1900,6 +2117,12 @@ internal static partial class Gen5SpirvTranslator
                     SpirvOp.CompositeConstruct,
                     outputType,
                     values);
+                vector = _module.AddInstruction(
+                    SpirvOp.Select,
+                    outputType,
+                    Load(_boolType, _exec),
+                    vector,
+                    Load(outputType, _pixelOutput));
                 Store(_pixelOutput, vector);
                 return true;
             }
@@ -1945,6 +2168,12 @@ internal static partial class Gen5SpirvTranslator
                 SpirvOp.CompositeConstruct,
                 _vec4Type,
                 components);
+            outputValue = _module.AddInstruction(
+                SpirvOp.Select,
+                _vec4Type,
+                Load(_boolType, _exec),
+                outputValue,
+                Load(_vec4Type, outputVariable));
             Store(outputVariable, outputValue);
             return true;
         }
@@ -2009,7 +2238,18 @@ internal static partial class Gen5SpirvTranslator
 
         private uint LoadV(uint register) => Load(_uintType, VectorPointer(register));
 
-        private void StoreS(uint register, uint value) => Store(ScalarPointer(register), value);
+        private void StoreS(uint register, uint value)
+        {
+            Store(ScalarPointer(register), value);
+            if (register is 106 or 107)
+            {
+                Store(_vcc, IsWaveMaskActive(LoadS64(106)));
+            }
+            else if (register is 126 or 127)
+            {
+                Store(_exec, IsWaveMaskActive(LoadS64(126)));
+            }
+        }
 
         private void StoreV(uint register, uint value, bool guardWithExec = true)
         {
@@ -2044,12 +2284,49 @@ internal static partial class Gen5SpirvTranslator
         private uint IAdd(uint left, uint right) =>
             _module.AddInstruction(SpirvOp.IAdd, _uintType, left, right);
 
+        private uint ShiftLeftLogical(uint left, uint right) =>
+            _module.AddInstruction(
+                SpirvOp.ShiftLeftLogical,
+                _uintType,
+                left,
+                BitwiseAnd(right, UInt(31)));
+
         private uint ShiftRightLogical(uint left, uint right) =>
-            _module.AddInstruction(SpirvOp.ShiftRightLogical, _uintType, left, right);
+            _module.AddInstruction(
+                SpirvOp.ShiftRightLogical,
+                _uintType,
+                left,
+                BitwiseAnd(right, UInt(31)));
+
+        private uint ShiftRightArithmetic(uint left, uint right) =>
+            Bitcast(
+                _uintType,
+                _module.AddInstruction(
+                    SpirvOp.ShiftRightArithmetic,
+                    _intType,
+                    Bitcast(_intType, left),
+                    BitwiseAnd(right, UInt(31))));
+
+        private uint ShiftLeftLogical64(uint left, uint right) =>
+            _module.AddInstruction(
+                SpirvOp.ShiftLeftLogical,
+                _ulongType,
+                left,
+                BitwiseAnd64(right, _module.Constant64(_ulongType, 63)));
+
+        private uint ShiftRightLogical64(uint left, uint right) =>
+            _module.AddInstruction(
+                SpirvOp.ShiftRightLogical,
+                _ulongType,
+                left,
+                BitwiseAnd64(right, _module.Constant64(_ulongType, 63)));
 
         private uint BitwiseAnd(uint left, uint right) =>
             _module.AddInstruction(SpirvOp.BitwiseAnd, _uintType, left, right);
 
+        private uint BitwiseAnd64(uint left, uint right) =>
+            _module.AddInstruction(SpirvOp.BitwiseAnd, _ulongType, left, right);
+
         private uint BitwiseOr(uint left, uint right) =>
             _module.AddInstruction(SpirvOp.BitwiseOr, _uintType, left, right);
 
@@ -2059,6 +2336,86 @@ internal static partial class Gen5SpirvTranslator
         private uint LogicalNot(uint value) =>
             _module.AddInstruction(SpirvOp.LogicalNot, _boolType, value);
 
+        private uint SubgroupAny(uint condition) =>
+            _subgroupInvocationIdInput == 0
+                ? condition
+                : _module.AddInstruction(
+                    SpirvOp.GroupNonUniformAny,
+                    _boolType,
+                    UInt(3),
+                    condition);
+
+        private uint CurrentLaneBit()
+        {
+            if (_subgroupInvocationIdInput == 0)
+            {
+                return _module.Constant64(_ulongType, 1);
+            }
+
+            var lane = Load(_uintType, _subgroupInvocationIdInput);
+            var maskedLane = BitwiseAnd(lane, UInt(RdnaWaveLaneCount - 1));
+            var shifted = ShiftLeftLogical64(
+                _module.Constant64(_ulongType, 1),
+                _module.AddInstruction(
+                    SpirvOp.UConvert,
+                    _ulongType,
+                    maskedLane));
+            return _module.AddInstruction(
+                SpirvOp.Select,
+                _ulongType,
+                IsCurrentLaneInRdnaWave(),
+                shifted,
+                _module.Constant64(_ulongType, 0));
+        }
+
+        private uint IsCurrentLaneInRdnaWave() =>
+            _module.AddInstruction(
+                SpirvOp.ULessThan,
+                _boolType,
+                Load(_uintType, _subgroupInvocationIdInput),
+                UInt(RdnaWaveLaneCount));
+
+        private uint BooleanToLaneMask(uint condition) =>
+            _module.AddInstruction(
+                SpirvOp.Select,
+                _ulongType,
+                condition,
+                CurrentLaneBit(),
+                _module.Constant64(_ulongType, 0));
+
+        private uint IsWaveMaskActive(uint mask) =>
+            _subgroupInvocationIdInput == 0
+                ? IsNotZero64(mask)
+                : IsCurrentLaneSet(mask);
+
+        private uint IsCurrentLaneSet(uint mask) =>
+            IsNotZero64(
+                _module.AddInstruction(
+                    SpirvOp.BitwiseAnd,
+                    _ulongType,
+                    mask,
+                    CurrentLaneBit()));
+
+        private void StoreWaveMask(uint register, uint condition) =>
+            StoreS64(register, BooleanToLaneMask(condition));
+
+        private void EmitExecConditional(Action emit)
+        {
+            var activeLabel = _module.AllocateId();
+            var mergeLabel = _module.AllocateId();
+            var active = Load(_boolType, _exec);
+            _module.AddStatement(SpirvOp.SelectionMerge, mergeLabel, 0);
+            _module.AddStatement(
+                SpirvOp.BranchConditional,
+                active,
+                activeLabel,
+                mergeLabel);
+            _module.AddLabel(activeLabel);
+            emit();
+            _module.AddStatement(SpirvOp.Branch, mergeLabel);
+            _module.AddLabel(mergeLabel);
+        }
+
         private bool UsesLds() =>
             _state.Program.Instructions.Any(instruction =>
                 instruction.Control is Gen5DataShareControl);
@@ -2067,6 +2424,23 @@ internal static partial class Gen5SpirvTranslator
             _state.Program.Instructions.Any(instruction =>
                 instruction.Opcode is "VPermlane16B32" or "VPermlanex16B32");
 
+        private bool UsesWaveControl() =>
+            _state.Program.Instructions.Any(instruction =>
+                instruction.Opcode.Contains("Saveexec", StringComparison.Ordinal) ||
+                instruction.Opcode.StartsWith("SCbranchExec", StringComparison.Ordinal) ||
+                instruction.Opcode.StartsWith("SCbranchVcc", StringComparison.Ordinal) ||
+                instruction.Opcode.StartsWith("VCmpx", StringComparison.Ordinal) ||
+                instruction.Sources.Any(IsWaveMaskOperand) ||
+                instruction.Destinations.Any(IsWaveMaskOperand));
+
+        private bool UsesSubgroupOperations() =>
+            _stage == Gen5SpirvStage.Compute &&
+            (UsesSubgroupShuffle() || UsesWaveControl());
+
+        private static bool IsWaveMaskOperand(Gen5Operand operand) =>
+            operand.Kind == Gen5OperandKind.ScalarRegister &&
+            operand.Value is 106 or 107 or 126 or 127;
+
         private static bool TryGetVectorDestination(
             Gen5ShaderInstruction instruction,
             out uint destination)

src/SharpEmu.Libs/Agc/SpirvModuleBuilder.cs

@@ -62,6 +62,7 @@ internal enum SpirvOp : ushort
     ImageDrefGather = 97,
     ImageRead = 98,
     ImageWrite = 99,
+    Image = 100,
     ImageQuerySizeLod = 103,
     ImageQuerySize = 104,
     ImageQueryLod = 105,
@@ -173,10 +174,13 @@ internal enum SpirvCapability : uint
     Float64 = 10,
     Int64 = 11,
     Int16 = 22,
+    ImageGatherExtended = 25,
+    StorageImageExtendedFormats = 49,
     ImageQuery = 50,
     StorageImageReadWithoutFormat = 55,
     StorageImageWriteWithoutFormat = 56,
     GroupNonUniform = 61,
+    GroupNonUniformVote = 62,
     GroupNonUniformBallot = 64,
     GroupNonUniformShuffle = 65,
     RuntimeDescriptorArray = 5302,
@@ -309,6 +313,18 @@ internal sealed class SpirvModuleBuilder
     private readonly Dictionary<(uint Width, bool Signed), uint> _integerTypes = [];
     private readonly Dictionary<uint, uint> _floatTypes = [];
     private readonly Dictionary<(uint Component, uint Count), uint> _vectorTypes = [];
+    private readonly Dictionary<
+        (
+            uint SampledType,
+            SpirvImageDim Dimension,
+            bool Depth,
+            bool Arrayed,
+            bool Multisampled,
+            uint Sampled,
+            SpirvImageFormat Format
+        ),
+        uint> _imageTypes = [];
+    private readonly Dictionary<uint, uint> _sampledImageTypes = [];
     private readonly Dictionary<(SpirvStorageClass Storage, uint Type), uint> _pointerTypes = [];
     private readonly Dictionary<(uint Element, uint Count), uint> _arrayTypes = [];
     private readonly Dictionary<uint, uint> _runtimeArrayTypes = [];
@@ -477,6 +493,19 @@ internal sealed class SpirvModuleBuilder
         uint sampled,
         SpirvImageFormat format)
     {
+        var key = (
+            sampledType,
+            dimension,
+            depth,
+            arrayed,
+            multisampled,
+            sampled,
+            format);
+        if (_imageTypes.TryGetValue(key, out var existing))
+        {
+            return existing;
+        }
+
         var id = AllocateId();
         Emit(
             _typesConstantsGlobals,
@@ -489,13 +518,20 @@ internal sealed class SpirvModuleBuilder
             multisampled ? 1u : 0u,
             sampled,
             (uint)format);
+        _imageTypes.Add(key, id);
         return id;
     }
 
     public uint TypeSampledImage(uint imageType)
     {
+        if (_sampledImageTypes.TryGetValue(imageType, out var existing))
+        {
+            return existing;
+        }
+
         var id = AllocateId();
         Emit(_typesConstantsGlobals, SpirvOp.TypeSampledImage, id, imageType);
+        _sampledImageTypes.Add(imageType, id);
         return id;
     }
 

src/SharpEmu.Libs/Ampr/AmprExports.cs

@@ -24,6 +24,7 @@ public static class AmprExports
     private const uint KernelEventQueueRecordType = 2;
     private const uint WriteAddressRecordType = 3;
     private static readonly ConcurrentDictionary<ulong, CommandBufferState> _commandBuffers = new();
+    private static readonly ConcurrentDictionary<string, Lazy<CachedHostFile>> _hostFileCache = new(StringComparer.OrdinalIgnoreCase);
     private static readonly bool _traceAmpr =
         string.Equals(Environment.GetEnvironmentVariable("SHARPEMU_LOG_AMPR"), "1", StringComparison.Ordinal);
     private static readonly bool _traceAmprReads =
@@ -37,6 +38,23 @@ public static class AmprExports
         public ulong WriteOffset;
     }
 
+    private sealed class CachedHostFile
+    {
+        public CachedHostFile(string path)
+        {
+            Stream = new FileStream(
+                path,
+                FileMode.Open,
+                FileAccess.Read,
+                FileShare.ReadWrite | FileShare.Delete,
+                bufferSize: 1024 * 1024,
+                FileOptions.RandomAccess);
+        }
+
+        public object Gate { get; } = new();
+        public FileStream Stream { get; }
+    }
+
     [SysAbiExport(
         Nid = "8aI7R7WaOlc",
         ExportName = "sceAmprCommandBufferConstructor",
@@ -249,7 +267,7 @@ public static class AmprExports
             return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
         }
 
-        if (!AmprFileRegistry.TryGetHostPath(fileId, out var hostPath) || !File.Exists(hostPath))
+        if (!AmprFileRegistry.TryGetHostPath(fileId, out var hostPath))
         {
             TraceAmprRead(ctx, commandBuffer, fileId, destination, size, fileOffset, bytesRead: 0, hostPath, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_NOT_FOUND);
             return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_NOT_FOUND;
@@ -634,24 +652,43 @@ public static class AmprExports
 
         try
         {
-            using var stream = new FileStream(
+            if (!TryGetCachedHostFile(hostPath, out var cachedFile, out var openResult))
-                hostPath,
+            {
-                FileMode.Open,
+                return openResult;
-                FileAccess.Read,
+            }
-                FileShare.ReadWrite | FileShare.Delete,
+
-                ChunkSize,
+            long fileLength;
-                FileOptions.SequentialScan);
+            lock (cachedFile.Gate)
-            if (fileOffset >= (ulong)stream.Length)
+            {
+                fileLength = cachedFile.Stream.Length;
+            }
+
+            if (fileOffset >= (ulong)fileLength)
             {
                 return (int)OrbisGen2Result.ORBIS_GEN2_OK;
             }
 
-            stream.Position = unchecked((long)fileOffset);
-
             while (bytesRead < size)
             {
+                if (bytesRead > ulong.MaxValue - fileOffset)
+                {
+                    return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
+                }
+
+                var absoluteOffset = fileOffset + bytesRead;
+                if (absoluteOffset > long.MaxValue)
+                {
+                    return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
+                }
+
                 var request = (int)Math.Min((ulong)buffer.Length, size - bytesRead);
-                var read = stream.Read(buffer, 0, request);
+                int read;
+                lock (cachedFile.Gate)
+                {
+                    cachedFile.Stream.Position = unchecked((long)absoluteOffset);
+                    read = cachedFile.Stream.Read(buffer, 0, request);
+                }
+
                 if (read <= 0)
                 {
                     break;
@@ -681,6 +718,44 @@ public static class AmprExports
         return (int)OrbisGen2Result.ORBIS_GEN2_OK;
     }
 
+    private static bool TryGetCachedHostFile(string hostPath, out CachedHostFile file, out int result)
+    {
+        file = null!;
+        result = (int)OrbisGen2Result.ORBIS_GEN2_OK;
+
+        string cachePath;
+        try
+        {
+            cachePath = Path.GetFullPath(hostPath);
+        }
+        catch
+        {
+            cachePath = hostPath;
+        }
+
+        var lazy = _hostFileCache.GetOrAdd(
+            cachePath,
+            static path => new Lazy<CachedHostFile>(() => new CachedHostFile(path), isThreadSafe: true));
+
+        try
+        {
+            file = lazy.Value;
+            return true;
+        }
+        catch (UnauthorizedAccessException)
+        {
+            _hostFileCache.TryRemove(cachePath, out _);
+            result = (int)OrbisGen2Result.ORBIS_GEN2_ERROR_PERMISSION_DENIED;
+            return false;
+        }
+        catch (IOException)
+        {
+            _hostFileCache.TryRemove(cachePath, out _);
+            result = (int)OrbisGen2Result.ORBIS_GEN2_ERROR_NOT_FOUND;
+            return false;
+        }
+    }
+
     private static bool AppendReadFileRecord(
         CpuContext ctx,
         ulong commandBuffer,

src/SharpEmu.Libs/Audio/AudioOutExports.cs

@@ -0,0 +1,242 @@
+// Copyright (C) 2026 SharpEmu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+using SharpEmu.HLE;
+using System.Buffers;
+using System.Collections.Concurrent;
+using System.Diagnostics;
+using System.Threading;
+
+namespace SharpEmu.Libs.Audio;
+
+public static class AudioOutExports
+{
+    private static readonly ConcurrentDictionary<int, PortState> Ports = new();
+    private static int _nextPortHandle;
+
+    private sealed class PortState : IDisposable
+    {
+        private readonly object _paceGate = new();
+        private long _nextSilentOutput;
+
+        public PortState(
+            int userId,
+            int type,
+            uint bufferLength,
+            uint frequency,
+            int format,
+            int channels,
+            int bytesPerSample,
+            bool isFloat,
+            WinMmAudioPort? backend)
+        {
+            UserId = userId;
+            Type = type;
+            BufferLength = bufferLength;
+            Frequency = frequency;
+            Format = format;
+            Channels = channels;
+            BytesPerSample = bytesPerSample;
+            IsFloat = isFloat;
+            Backend = backend;
+        }
+
+        public int UserId { get; }
+        public int Type { get; }
+        public uint BufferLength { get; }
+        public uint Frequency { get; }
+        public int Format { get; }
+        public int Channels { get; }
+        public int BytesPerSample { get; }
+        public bool IsFloat { get; }
+        public WinMmAudioPort? Backend { get; }
+        public int BufferByteLength =>
+            checked((int)BufferLength * Channels * BytesPerSample);
+
+        public void PaceSilence()
+        {
+            long delay;
+            lock (_paceGate)
+            {
+                var now = Stopwatch.GetTimestamp();
+                if (_nextSilentOutput < now)
+                {
+                    _nextSilentOutput = now;
+                }
+
+                delay = _nextSilentOutput - now;
+                _nextSilentOutput += checked(
+                    (long)Math.Ceiling(
+                        Stopwatch.Frequency * (double)BufferLength / Frequency));
+            }
+
+            if (delay > 0)
+            {
+                Thread.Sleep(TimeSpan.FromSeconds((double)delay / Stopwatch.Frequency));
+            }
+        }
+
+        public void Dispose() => Backend?.Dispose();
+    }
+
+    [SysAbiExport(
+        Nid = "JfEPXVxhFqA",
+        ExportName = "sceAudioOutInit",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceAudioOut")]
+    public static int AudioOutInit(CpuContext ctx) => SetReturn(ctx, 0);
+
+    [SysAbiExport(
+        Nid = "ekNvsT22rsY",
+        ExportName = "sceAudioOutOpen",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceAudioOut")]
+    public static int AudioOutOpen(CpuContext ctx)
+    {
+        var userId = unchecked((int)ctx[CpuRegister.Rdi]);
+        var type = unchecked((int)ctx[CpuRegister.Rsi]);
+        var bufferLength = unchecked((uint)ctx[CpuRegister.Rcx]);
+        var frequency = unchecked((uint)ctx[CpuRegister.R8]);
+        var format = unchecked((int)ctx[CpuRegister.R9]);
+        if (bufferLength == 0 || frequency == 0 ||
+            !TryGetFormat(format, out var channels, out var bytesPerSample, out var isFloat))
+        {
+            return SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT);
+        }
+
+        WinMmAudioPort? backend = null;
+        string backendName;
+        try
+        {
+            backend = new WinMmAudioPort(frequency);
+            backendName = "winmm";
+        }
+        catch (Exception exception)
+        {
+            backendName = "silent";
+            Console.Error.WriteLine(
+                $"[LOADER][WARN] AudioOut host backend unavailable: {exception.Message}");
+        }
+
+        var handle = Interlocked.Increment(ref _nextPortHandle);
+        Ports[handle] = new PortState(
+            userId,
+            type,
+            bufferLength,
+            frequency,
+            format,
+            channels,
+            bytesPerSample,
+            isFloat,
+            backend);
+        Console.Error.WriteLine(
+            $"[LOADER][INFO] AudioOut port {handle}: {frequency} Hz, " +
+            $"{channels} ch, {(isFloat ? "float32" : "s16")}, " +
+            $"{bufferLength} frames, backend={backendName}");
+        return SetReturn(ctx, handle);
+    }
+
+    [SysAbiExport(
+        Nid = "s1--uE9mBFw",
+        ExportName = "sceAudioOutClose",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceAudioOut")]
+    public static int AudioOutClose(CpuContext ctx)
+    {
+        var handle = unchecked((int)ctx[CpuRegister.Rdi]);
+        if (!Ports.TryRemove(handle, out var port))
+        {
+            return SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT);
+        }
+
+        port.Dispose();
+        return SetReturn(ctx, 0);
+    }
+
+    [SysAbiExport(
+        Nid = "QOQtbeDqsT4",
+        ExportName = "sceAudioOutOutput",
+        Target = Generation.Gen5,
+        LibraryName = "libSceAudioOut")]
+    public static int AudioOutOutput(CpuContext ctx)
+    {
+        var handle = unchecked((int)ctx[CpuRegister.Rdi]);
+        var sourceAddress = ctx[CpuRegister.Rsi];
+        if (!Ports.TryGetValue(handle, out var port))
+        {
+            return SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT);
+        }
+
+        if (sourceAddress == 0)
+        {
+            return SetReturn(ctx, 0);
+        }
+
+        var buffer = ArrayPool<byte>.Shared.Rent(port.BufferByteLength);
+        try
+        {
+            var source = buffer.AsSpan(0, port.BufferByteLength);
+            if (!ctx.Memory.TryRead(sourceAddress, source))
+            {
+                return SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT);
+            }
+
+            if (port.Backend is null ||
+                !port.Backend.Submit(
+                    source,
+                    port.BufferLength,
+                    port.Channels,
+                    port.BytesPerSample,
+                    port.IsFloat))
+            {
+                port.PaceSilence();
+            }
+
+            return SetReturn(ctx, 0);
+        }
+        finally
+        {
+            ArrayPool<byte>.Shared.Return(buffer);
+        }
+    }
+
+    [SysAbiExport(
+        Nid = "b+uAV89IlxE",
+        ExportName = "sceAudioOutSetVolume",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceAudioOut")]
+    public static int AudioOutSetVolume(CpuContext ctx)
+    {
+        var handle = unchecked((int)ctx[CpuRegister.Rdi]);
+        return SetReturn(
+            ctx,
+            Ports.ContainsKey(handle)
+                ? 0
+                : (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT);
+    }
+
+    private static int SetReturn(CpuContext ctx, int result)
+    {
+        ctx[CpuRegister.Rax] = unchecked((ulong)result);
+        return result;
+    }
+
+    private static bool TryGetFormat(
+        int rawFormat,
+        out int channels,
+        out int bytesPerSample,
+        out bool isFloat)
+    {
+        var format = rawFormat & 0xFF;
+        channels = format switch
+        {
+            0 or 3 => 1,
+            1 or 4 => 2,
+            2 or 5 or 6 or 7 => 8,
+            _ => 0,
+        };
+        bytesPerSample = format is >= 3 and <= 5 or 7 ? 4 : 2;
+        isFloat = bytesPerSample == 4;
+        return channels != 0;
+    }
+}

src/SharpEmu.Libs/Audio/WinMmAudioPort.cs

@@ -0,0 +1,302 @@
+// Copyright (C) 2026 SharpEmu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+using System.Buffers;
+using System.Buffers.Binary;
+using System.Runtime.InteropServices;
+
+namespace SharpEmu.Libs.Audio;
+
+internal sealed class WinMmAudioPort : IDisposable
+{
+    private const uint WaveMapper = uint.MaxValue;
+    private const uint CallbackEvent = 0x0005_0000;
+    private const ushort WaveFormatPcm = 1;
+    private const uint WaveHeaderDone = 0x0000_0001;
+    private const int MaximumQueuedPcmBytes = 32 * 1024;
+
+    private readonly object _gate = new();
+    private readonly AutoResetEvent _completion = new(false);
+    private readonly Queue<NativeBuffer> _buffers = new();
+    private IntPtr _device;
+    private int _queuedPcmBytes;
+    private bool _disposed;
+
+    public WinMmAudioPort(uint sampleRate)
+    {
+        if (!OperatingSystem.IsWindows())
+        {
+            throw new PlatformNotSupportedException("WinMM audio is only available on Windows.");
+        }
+
+        var format = new WaveFormat
+        {
+            FormatTag = WaveFormatPcm,
+            Channels = 2,
+            SamplesPerSecond = sampleRate,
+            AverageBytesPerSecond = checked(sampleRate * 4),
+            BlockAlign = 4,
+            BitsPerSample = 16,
+            ExtraSize = 0,
+        };
+        var result = WaveOutOpen(
+            out _device,
+            WaveMapper,
+            ref format,
+            _completion.SafeWaitHandle.DangerousGetHandle(),
+            IntPtr.Zero,
+            CallbackEvent);
+        if (result != 0)
+        {
+            throw new InvalidOperationException($"waveOutOpen failed with MMRESULT {result}.");
+        }
+    }
+
+    public bool Submit(
+        ReadOnlySpan<byte> source,
+        uint frames,
+        int channels,
+        int bytesPerSample,
+        bool isFloat)
+    {
+        lock (_gate)
+        {
+            if (_disposed)
+            {
+                return false;
+            }
+
+            var outputLength = checked((int)frames * 4);
+            ReapCompletedBuffers();
+            while (_queuedPcmBytes != 0 &&
+                   _queuedPcmBytes + outputLength > MaximumQueuedPcmBytes)
+            {
+                if (!_completion.WaitOne(TimeSpan.FromSeconds(1)))
+                {
+                    return false;
+                }
+
+                ReapCompletedBuffers();
+            }
+
+            var output = ArrayPool<byte>.Shared.Rent(outputLength);
+            try
+            {
+                ConvertToStereoPcm16(
+                    source,
+                    output.AsSpan(0, outputLength),
+                    checked((int)frames),
+                    channels,
+                    bytesPerSample,
+                    isFloat);
+                return QueueBuffer(output.AsSpan(0, outputLength));
+            }
+            finally
+            {
+                ArrayPool<byte>.Shared.Return(output);
+            }
+        }
+    }
+
+    public void Dispose()
+    {
+        lock (_gate)
+        {
+            if (_disposed)
+            {
+                return;
+            }
+
+            _disposed = true;
+            if (_device != IntPtr.Zero)
+            {
+                WaveOutReset(_device);
+                while (_buffers.TryDequeue(out var buffer))
+                {
+                    ReleaseBuffer(buffer);
+                }
+
+                WaveOutClose(_device);
+                _device = IntPtr.Zero;
+            }
+
+            _completion.Dispose();
+        }
+    }
+
+    private bool QueueBuffer(ReadOnlySpan<byte> data)
+    {
+        var dataAddress = Marshal.AllocHGlobal(data.Length);
+        var headerAddress = IntPtr.Zero;
+        try
+        {
+            unsafe
+            {
+                data.CopyTo(new Span<byte>((void*)dataAddress, data.Length));
+            }
+
+            var header = new WaveHeader
+            {
+                Data = dataAddress,
+                BufferLength = checked((uint)data.Length),
+            };
+            headerAddress = Marshal.AllocHGlobal(Marshal.SizeOf<WaveHeader>());
+            Marshal.StructureToPtr(header, headerAddress, false);
+
+            var result = WaveOutPrepareHeader(
+                _device,
+                headerAddress,
+                checked((uint)Marshal.SizeOf<WaveHeader>()));
+            if (result != 0)
+            {
+                return false;
+            }
+
+            result = WaveOutWrite(
+                _device,
+                headerAddress,
+                checked((uint)Marshal.SizeOf<WaveHeader>()));
+            if (result != 0)
+            {
+                WaveOutUnprepareHeader(
+                    _device,
+                    headerAddress,
+                    checked((uint)Marshal.SizeOf<WaveHeader>()));
+                return false;
+            }
+
+            _buffers.Enqueue(new NativeBuffer(dataAddress, headerAddress, data.Length));
+            _queuedPcmBytes += data.Length;
+            dataAddress = IntPtr.Zero;
+            headerAddress = IntPtr.Zero;
+            return true;
+        }
+        finally
+        {
+            if (headerAddress != IntPtr.Zero)
+            {
+                Marshal.FreeHGlobal(headerAddress);
+            }
+
+            if (dataAddress != IntPtr.Zero)
+            {
+                Marshal.FreeHGlobal(dataAddress);
+            }
+        }
+    }
+
+    private void ReapCompletedBuffers()
+    {
+        while (_buffers.TryPeek(out var buffer))
+        {
+            var header = Marshal.PtrToStructure<WaveHeader>(buffer.Header);
+            if ((header.Flags & WaveHeaderDone) == 0)
+            {
+                return;
+            }
+
+            _buffers.Dequeue();
+            ReleaseBuffer(buffer);
+        }
+    }
+
+    private void ReleaseBuffer(NativeBuffer buffer)
+    {
+        WaveOutUnprepareHeader(
+            _device,
+            buffer.Header,
+            checked((uint)Marshal.SizeOf<WaveHeader>()));
+        _queuedPcmBytes -= buffer.Length;
+        Marshal.FreeHGlobal(buffer.Header);
+        Marshal.FreeHGlobal(buffer.Data);
+    }
+
+    private static void ConvertToStereoPcm16(
+        ReadOnlySpan<byte> source,
+        Span<byte> destination,
+        int frames,
+        int channels,
+        int bytesPerSample,
+        bool isFloat)
+    {
+        var sourceFrameSize = checked(channels * bytesPerSample);
+        for (var frame = 0; frame < frames; frame++)
+        {
+            var sourceFrame = source.Slice(frame * sourceFrameSize, sourceFrameSize);
+            var left = ReadSample(sourceFrame, 0, bytesPerSample, isFloat);
+            var right = channels == 1
+                ? left
+                : ReadSample(sourceFrame, 1, bytesPerSample, isFloat);
+            BinaryPrimitives.WriteInt16LittleEndian(destination[(frame * 4)..], left);
+            BinaryPrimitives.WriteInt16LittleEndian(destination[((frame * 4) + 2)..], right);
+        }
+    }
+
+    private static short ReadSample(
+        ReadOnlySpan<byte> frame,
+        int channel,
+        int bytesPerSample,
+        bool isFloat)
+    {
+        var sample = frame.Slice(channel * bytesPerSample, bytesPerSample);
+        if (!isFloat)
+        {
+            return BinaryPrimitives.ReadInt16LittleEndian(sample);
+        }
+
+        var bits = BinaryPrimitives.ReadInt32LittleEndian(sample);
+        var value = Math.Clamp(BitConverter.Int32BitsToSingle(bits), -1.0f, 1.0f);
+        return checked((short)MathF.Round(value * short.MaxValue));
+    }
+
+    private readonly record struct NativeBuffer(IntPtr Data, IntPtr Header, int Length);
+
+    [StructLayout(LayoutKind.Sequential, Pack = 2)]
+    private struct WaveFormat
+    {
+        public ushort FormatTag;
+        public ushort Channels;
+        public uint SamplesPerSecond;
+        public uint AverageBytesPerSecond;
+        public ushort BlockAlign;
+        public ushort BitsPerSample;
+        public ushort ExtraSize;
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    private struct WaveHeader
+    {
+        public IntPtr Data;
+        public uint BufferLength;
+        public uint BytesRecorded;
+        public nuint User;
+        public uint Flags;
+        public uint Loops;
+        public IntPtr Next;
+        public nuint Reserved;
+    }
+
+    [DllImport("winmm.dll", EntryPoint = "waveOutOpen")]
+    private static extern uint WaveOutOpen(
+        out IntPtr device,
+        uint deviceId,
+        ref WaveFormat format,
+        IntPtr callback,
+        IntPtr instance,
+        uint flags);
+
+    [DllImport("winmm.dll", EntryPoint = "waveOutPrepareHeader")]
+    private static extern uint WaveOutPrepareHeader(IntPtr device, IntPtr header, uint headerSize);
+
+    [DllImport("winmm.dll", EntryPoint = "waveOutWrite")]
+    private static extern uint WaveOutWrite(IntPtr device, IntPtr header, uint headerSize);
+
+    [DllImport("winmm.dll", EntryPoint = "waveOutUnprepareHeader")]
+    private static extern uint WaveOutUnprepareHeader(IntPtr device, IntPtr header, uint headerSize);
+
+    [DllImport("winmm.dll", EntryPoint = "waveOutReset")]
+    private static extern uint WaveOutReset(IntPtr device);
+
+    [DllImport("winmm.dll", EntryPoint = "waveOutClose")]
+    private static extern uint WaveOutClose(IntPtr device);
+}

src/SharpEmu.Libs/AvPlayer/AvPlayerExports.cs

@@ -0,0 +1,77 @@
+// Copyright (C) 2026 SharpEmu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+using SharpEmu.HLE;
+using SharpEmu.Libs.Kernel;
+
+namespace SharpEmu.Libs.AvPlayer;
+
+public static class AvPlayerExports
+{
+    private const int InvalidParameters = unchecked((int)0x806A0001);
+    private static readonly object StateGate = new();
+    private static readonly HashSet<ulong> Players = new();
+
+    [SysAbiExport(
+        Nid = "aS66RI0gGgo",
+        ExportName = "sceAvPlayerInit",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceAvPlayer")]
+    public static int AvPlayerInit(CpuContext ctx)
+    {
+        if (ctx[CpuRegister.Rdi] == 0 ||
+            !KernelMemoryCompatExports.TryAllocateHleData(ctx, 0x40, 16, out var handle))
+        {
+            ctx[CpuRegister.Rax] = 0;
+            return 0;
+        }
+
+        lock (StateGate)
+        {
+            Players.Add(handle);
+        }
+
+        ctx[CpuRegister.Rax] = handle;
+        return unchecked((int)handle);
+    }
+
+    [SysAbiExport(
+        Nid = "HD1YKVU26-M",
+        ExportName = "sceAvPlayerPostInit",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceAvPlayer")]
+    public static int AvPlayerPostInit(CpuContext ctx)
+    {
+        var handle = ctx[CpuRegister.Rdi];
+        var dataAddress = ctx[CpuRegister.Rsi];
+        lock (StateGate)
+        {
+            return SetReturn(
+                ctx,
+                handle != 0 && dataAddress != 0 && Players.Contains(handle)
+                    ? 0
+                    : InvalidParameters);
+        }
+    }
+
+    [SysAbiExport(
+        Nid = "NkJwDzKmIlw",
+        ExportName = "sceAvPlayerClose",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceAvPlayer")]
+    public static int AvPlayerClose(CpuContext ctx)
+    {
+        lock (StateGate)
+        {
+            return SetReturn(
+                ctx,
+                Players.Remove(ctx[CpuRegister.Rdi]) ? 0 : InvalidParameters);
+        }
+    }
+
+    private static int SetReturn(CpuContext ctx, int result)
+    {
+        ctx[CpuRegister.Rax] = unchecked((ulong)result);
+        return result;
+    }
+}

src/SharpEmu.Libs/CommonDialog/MsgDialogExports.cs

@@ -0,0 +1,27 @@
+// Copyright (C) 2026 SharpEmu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+using SharpEmu.HLE;
+using System.Threading;
+
+namespace SharpEmu.Libs.CommonDialog;
+
+public static class MsgDialogExports
+{
+    private const int AlreadyInitialized = unchecked((int)0x80B80002);
+    private static int _initialized;
+
+    [SysAbiExport(
+        Nid = "lDqxaY1UbEo",
+        ExportName = "sceMsgDialogInitialize",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceMsgDialog")]
+    public static int MsgDialogInitialize(CpuContext ctx)
+    {
+        var result = Interlocked.Exchange(ref _initialized, 1) == 0
+            ? 0
+            : AlreadyInitialized;
+        ctx[CpuRegister.Rax] = unchecked((ulong)result);
+        return result;
+    }
+}

src/SharpEmu.Libs/Kernel/KernelEventQueueCompatExports.cs

@@ -276,6 +276,22 @@ public static class KernelEventQueueCompatExports
         var outCountAddress = ctx[CpuRegister.Rcx];
         var timeoutAddress = ctx[CpuRegister.R8];
 
+        if (!IsValidEqueue(handle))
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_NOT_FOUND;
+        }
+
+        if (eventsAddress == 0 || eventCapacity < 1)
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
+        }
+
+        uint timeoutUsec = 0;
+        if (timeoutAddress != 0 && !TryReadUInt32(ctx, timeoutAddress, out timeoutUsec))
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
+        }
+
         var deliveredCount = DequeueEvents(ctx, handle, eventsAddress, eventCapacity);
         if (outCountAddress != 0 && !TryWriteUInt32(ctx, outCountAddress, (uint)deliveredCount))
         {
@@ -300,6 +316,41 @@ public static class KernelEventQueueCompatExports
             return (int)OrbisGen2Result.ORBIS_GEN2_OK;
         }
 
+        if (timeoutAddress != 0 && ctx.TryReadUInt64(timeoutAddress, out var timeoutRaw))
+        {
+            var timeoutMicros = timeoutRaw & 0xFFFF_FFFFUL;
+            var deadline = Environment.TickCount64 +
+                Math.Max(1L, (long)Math.Min(timeoutMicros / 1000, int.MaxValue));
+            lock (_eventQueueGate)
+            {
+                while (!HasPendingEvents(handle))
+                {
+                    var remaining = deadline - Environment.TickCount64;
+                    if (remaining <= 0)
+                    {
+                        break;
+                    }
+
+                    Monitor.Wait(_eventQueueGate, (int)Math.Min(remaining, 100));
+                }
+            }
+
+            deliveredCount = DequeueEvents(ctx, handle, eventsAddress, eventCapacity);
+            if (outCountAddress != 0 && !TryWriteUInt32(ctx, outCountAddress, (uint)deliveredCount))
+            {
+                return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
+            }
+
+            if (deliveredCount > 0)
+            {
+                TraceEventQueue(ctx, "wait-timed-deliver", handle);
+                return (int)OrbisGen2Result.ORBIS_GEN2_OK;
+            }
+
+            TraceEventQueue(ctx, "wait-timeout", handle);
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_TIMED_OUT;
+        }
+
         TraceEventQueue(ctx, "wait", handle);
         return (int)OrbisGen2Result.ORBIS_GEN2_OK;
     }
@@ -330,6 +381,7 @@ public static class KernelEventQueueCompatExports
 
             queue.AddLast(queuedEvent);
             queued = true;
+            Monitor.PulseAll(_eventQueueGate);
         }
 
         if (queued)
@@ -494,7 +546,9 @@ public static class KernelEventQueueCompatExports
             return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
         }
 
-        return (int)OrbisGen2Result.ORBIS_GEN2_OK;
+        return deliveredCount > 0
+            ? (int)OrbisGen2Result.ORBIS_GEN2_OK
+            : (int)OrbisGen2Result.ORBIS_GEN2_ERROR_TIMED_OUT;
     }
 
     private static bool HasPendingEvents(ulong handle)
@@ -612,4 +666,17 @@ public static class KernelEventQueueCompatExports
         BinaryPrimitives.WriteUInt32LittleEndian(buffer, value);
         return ctx.Memory.TryWrite(address, buffer);
     }
+
+    private static bool TryReadUInt32(CpuContext ctx, ulong address, out uint value)
+    {
+        Span<byte> buffer = stackalloc byte[sizeof(uint)];
+        if (!ctx.Memory.TryRead(address, buffer))
+        {
+            value = 0;
+            return false;
+        }
+
+        value = BinaryPrimitives.ReadUInt32LittleEndian(buffer);
+        return true;
+    }
 }

src/SharpEmu.Libs/Kernel/KernelExceptionCompatExports.cs

@@ -0,0 +1,65 @@
+// Copyright (C) 2026 SharpEmu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+using SharpEmu.HLE;
+
+namespace SharpEmu.Libs.Kernel;
+
+public static class KernelExceptionCompatExports
+{
+    private static readonly HashSet<int> AllowedSignals = new() { 1, 4, 8, 10, 11, 30 };
+    private static readonly Dictionary<int, ulong> _installedHandlers = new();
+    private static readonly object _gate = new();
+
+    [SysAbiExport(
+        Nid = "WkwEd3N7w0Y",
+        ExportName = "sceKernelInstallExceptionHandler",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libKernel")]
+    public static int InstallExceptionHandler(CpuContext ctx)
+    {
+        var signum = unchecked((int)ctx[CpuRegister.Rdi]);
+        var handler = ctx[CpuRegister.Rsi];
+
+        if (!AllowedSignals.Contains(signum))
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
+        }
+
+        lock (_gate)
+        {
+            if (_installedHandlers.ContainsKey(signum))
+            {
+                return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_ALREADY_EXISTS;
+            }
+
+            _installedHandlers[signum] = handler;
+        }
+
+        ctx[CpuRegister.Rax] = 0;
+        return (int)OrbisGen2Result.ORBIS_GEN2_OK;
+    }
+
+    [SysAbiExport(
+        Nid = "Qhv5ARAoOEc",
+        ExportName = "sceKernelRemoveExceptionHandler",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libKernel")]
+    public static int RemoveExceptionHandler(CpuContext ctx)
+    {
+        var signum = unchecked((int)ctx[CpuRegister.Rdi]);
+
+        if (!AllowedSignals.Contains(signum))
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
+        }
+
+        lock (_gate)
+        {
+            _installedHandlers.Remove(signum);
+        }
+
+        ctx[CpuRegister.Rax] = 0;
+        return (int)OrbisGen2Result.ORBIS_GEN2_OK;
+    }
+}

src/SharpEmu.Libs/Kernel/KernelExports.cs

@@ -306,10 +306,6 @@ public static class KernelExports
     {
         var threadId = ctx[CpuRegister.Rdi];
         var returnValueAddress = ctx[CpuRegister.Rsi];
-        if (returnValueAddress != 0 && !ctx.TryWriteUInt64(returnValueAddress, 0))
-        {
-            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
-        }
 
         if (ShouldTracePthread())
         {
@@ -317,6 +313,30 @@ public static class KernelExports
                 $"[LOADER][TRACE] pthread_join: thread=0x{threadId:X16} retval_out=0x{returnValueAddress:X16}");
         }
 
+        var returnValue = 0UL;
+        if (GuestThreadExecution.Scheduler is { } scheduler &&
+            !scheduler.TryJoinThread(ctx, threadId, out returnValue, out var error))
+        {
+            Console.Error.WriteLine(
+                $"[LOADER][ERROR] pthread_join: thread=0x{threadId:X16}: {error}");
+            var result = string.Equals(
+                error,
+                "thread cannot join itself",
+                StringComparison.Ordinal)
+                ? OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT
+                : OrbisGen2Result.ORBIS_GEN2_ERROR_NOT_FOUND;
+            ctx[CpuRegister.Rax] = unchecked((ulong)(int)result);
+            return (int)result;
+        }
+
+        if (returnValueAddress != 0 &&
+            !ctx.TryWriteUInt64(returnValueAddress, returnValue))
+        {
+            ctx[CpuRegister.Rax] =
+                unchecked((ulong)(int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT);
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
+        }
+
         ctx[CpuRegister.Rax] = 0;
         return (int)OrbisGen2Result.ORBIS_GEN2_OK;
     }
@@ -345,6 +365,13 @@ public static class KernelExports
         LibraryName = "libKernel")]
     public static int KernelOpen(CpuContext ctx) => KernelMemoryCompatExports.KernelOpenUnderscore(ctx);
 
+    [SysAbiExport(
+        Nid = "mqQMh1zPPT8",
+        ExportName = "fstat",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libc")]
+    public static int Fstat(CpuContext ctx) => KernelMemoryCompatExports.KernelFstat(ctx);
+
     [SysAbiExport(
         Nid = "hcuQgD53UxM",
         ExportName = "printf",

src/SharpEmu.Libs/Kernel/KernelMemoryCompatExports.cs

@@ -5,9 +5,9 @@ using SharpEmu.HLE;
 using SharpEmu.Libs.Ampr;
 using System.Buffers;
 using System.Buffers.Binary;
+using System.Collections.Concurrent;
 using System.Text;
 using System.Threading;
-using System.Reflection;
 using System.Runtime.InteropServices;
 using System.Linq;
 using System.Globalization;
@@ -99,12 +99,16 @@ public static class KernelMemoryCompatExports
     private static readonly object _tlsGate = new();
     private static readonly object _ioTraceGate = new();
     private static readonly object _statCacheGate = new();
+    private static readonly object _guestMountGate = new();
     private static readonly Dictionary<ulong, DirectAllocation> _directAllocations = new();
     private static readonly Dictionary<ulong, LibcHeapAllocation> _libcAllocations = new();
     private static readonly Dictionary<ulong, MappedRegion> _mappedRegions = new();
+    private static readonly Dictionary<ulong, string> _mappedRegionNames = new();
     private static readonly Dictionary<ulong, ulong> _tlsModuleBlocks = new();
+    private static readonly Dictionary<string, string> _guestMounts = new(StringComparer.OrdinalIgnoreCase);
     private static readonly HashSet<string> _tracedStatResults = new(StringComparer.Ordinal);
     private static readonly HashSet<string> _negativeStatCache = new(StringComparer.OrdinalIgnoreCase);
+    private static readonly ConcurrentDictionary<string, ulong> _aprFileSizeCache = new(StringComparer.OrdinalIgnoreCase);
     private static long _nextFileDescriptor = 2;
     private static ulong _nextPhysicalAddress;
     private static ulong _nextVirtualAddress;
@@ -153,6 +157,32 @@ public static class KernelMemoryCompatExports
     private readonly record struct MappedRegion(ulong Address, ulong Length, int Protection, bool IsFlexible, bool IsDirect, ulong DirectStart);
     private readonly record struct BatchMapEntry(ulong Start, ulong Offset, ulong Length, byte Protection, byte Type, int Operation);
 
+    public static void RegisterGuestPathMount(string guestMountPoint, string hostRoot)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(guestMountPoint);
+        ArgumentException.ThrowIfNullOrWhiteSpace(hostRoot);
+
+        var normalizedMountPoint = NormalizeGuestStatCachePath(guestMountPoint);
+        if (normalizedMountPoint is null || normalizedMountPoint == "/")
+        {
+            throw new ArgumentException("Guest mount point must name a directory.", nameof(guestMountPoint));
+        }
+
+        var normalizedHostRoot = Path.GetFullPath(hostRoot);
+        Directory.CreateDirectory(normalizedHostRoot);
+        lock (_guestMountGate)
+        {
+            _guestMounts[normalizedMountPoint] = normalizedHostRoot;
+        }
+
+        lock (_statCacheGate)
+        {
+            _negativeStatCache.RemoveWhere(path =>
+                string.Equals(path, normalizedMountPoint, StringComparison.OrdinalIgnoreCase) ||
+                path.StartsWith(normalizedMountPoint + "/", StringComparison.OrdinalIgnoreCase));
+        }
+    }
+
     internal static bool TryAllocateHleData(
         CpuContext ctx,
         ulong length,
@@ -203,6 +233,25 @@ public static class KernelMemoryCompatExports
         return true;
     }
 
+    internal static void RegisterReservedVirtualRange(ulong address, ulong length)
+    {
+        if (address == 0 || length == 0)
+        {
+            return;
+        }
+
+        lock (_memoryGate)
+        {
+            _mappedRegions[address] = new MappedRegion(
+                address,
+                length,
+                Protection: 0,
+                IsFlexible: false,
+                IsDirect: false,
+                DirectStart: 0);
+        }
+    }
+
     [SysAbiExport(
         Nid = "8zTFvBIAIN8",
         ExportName = "memset",
@@ -1294,6 +1343,7 @@ public static class KernelMemoryCompatExports
             if (IsMutatingOpen(flags))
             {
                 InvalidateNegativeStatCacheForPathAndAncestors(guestPath);
+                InvalidateAprFileSizeCache(hostPath);
             }
 
             LogOpenTrace($"_open file path='{guestPath}' host='{hostPath}' flags=0x{flags:X8} fd={fd}");
@@ -1502,6 +1552,7 @@ public static class KernelMemoryCompatExports
 
             File.Delete(hostPath);
             InvalidateNegativeStatCacheForPathAndAncestors(guestPath);
+            InvalidateAprFileSizeCache(hostPath);
             AddNegativeStatCacheForGuestPath(guestPath);
             LogOpenTrace($"unlink path='{guestPath}' host='{hostPath}'");
             ctx[CpuRegister.Rax] = 0;
@@ -2407,6 +2458,36 @@ public static class KernelMemoryCompatExports
         return (int)OrbisGen2Result.ORBIS_GEN2_OK;
     }
 
+    [SysAbiExport(
+    Nid = "hwVSPCmp5tM",
+    ExportName = "sceKernelCheckedReleaseDirectMemory",
+    Target = Generation.Gen4 | Generation.Gen5,
+    LibraryName = "libKernel")]
+    public static int KernelCheckedReleaseDirectMemory(CpuContext ctx)
+    {
+        var start = ctx[CpuRegister.Rdi];
+        var length = ctx[CpuRegister.Rsi];
+
+        if (length == 0)
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
+        }
+
+        lock (_memoryGate)
+        {
+            if (!_directAllocations.TryGetValue(start, out var allocation) ||
+                allocation.Length != length)
+            {
+                return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_NOT_FOUND;
+            }
+
+            _directAllocations.Remove(start);
+            _nextPhysicalAddress = GetDirectMemoryHighWaterMarkLocked();
+        }
+
+        return (int)OrbisGen2Result.ORBIS_GEN2_OK;
+    }
+
     [SysAbiExport(
         Nid = "L-Q3LEjIbgA",
         ExportName = "sceKernelMapDirectMemory",
@@ -2518,8 +2599,11 @@ public static class KernelMemoryCompatExports
         var length = ctx[CpuRegister.Rsi];
         var protection = unchecked((int)ctx[CpuRegister.Rdx]);
         var flags = ctx[CpuRegister.Rcx];
-        Console.Error.WriteLine(
+        if (ShouldTraceDirectMemory())
-            $"[LOADER][TRACE] map_flexible: inout=0x{inOutAddressPointer:X16} len=0x{length:X16} prot=0x{protection:X8} flags=0x{flags:X16}");
+        {
+            Console.Error.WriteLine(
+                $"[LOADER][TRACE] map_flexible: inout=0x{inOutAddressPointer:X16} len=0x{length:X16} prot=0x{protection:X8} flags=0x{flags:X16}");
+        }
         if (inOutAddressPointer == 0 || length == 0)
         {
             return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
@@ -2549,8 +2633,11 @@ public static class KernelMemoryCompatExports
                     : AllocateMappedGuestAddress(ctx, length, 0x1000UL);
             }
 
-            Console.Error.WriteLine(
+            if (ShouldTraceDirectMemory())
-                $"[LOADER][TRACE] map_flexible reserve: requested=0x{requestedAddress:X16} desired=0x{desiredAddress:X16} mapped=0x{mappedAddress:X16}");
+            {
+                Console.Error.WriteLine(
+                    $"[LOADER][TRACE] map_flexible reserve: requested=0x{requestedAddress:X16} desired=0x{desiredAddress:X16} mapped=0x{mappedAddress:X16}");
+            }
 
             if (mappedAddress == 0)
             {
@@ -2586,6 +2673,16 @@ public static class KernelMemoryCompatExports
         return KernelMapNamedFlexibleMemory(ctx);
     }
 
+    [SysAbiExport(
+        Nid = "4h6F1LLbTiw",
+        ExportName = "sceKernelMapFlexibleMemoryInternal",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libKernel")]
+    public static int KernelMapFlexibleMemoryInternal(CpuContext ctx)
+    {
+        return KernelMapNamedFlexibleMemory(ctx);
+    }
+
     [SysAbiExport(
         Nid = "2SKEx6bSq-4",
         ExportName = "sceKernelBatchMap",
@@ -2639,6 +2736,44 @@ public static class KernelMemoryCompatExports
         return (int)OrbisGen2Result.ORBIS_GEN2_OK;
     }
 
+    [SysAbiExport(
+        Nid = "DGMG3JshrZU",
+        ExportName = "sceKernelSetVirtualRangeName",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libKernel")]
+    public static int KernelSetVirtualRangeName(CpuContext ctx)
+    {
+        var address = ctx[CpuRegister.Rdi];
+        var length = ctx[CpuRegister.Rsi];
+        var nameAddress = ctx[CpuRegister.Rdx];
+        if (nameAddress == 0)
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
+        }
+
+        if (!TryReadCString(ctx, nameAddress, OrbisKernelMaximumNameLength, out var nameBytes))
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
+        }
+
+        var name = Encoding.UTF8.GetString(nameBytes);
+        lock (_memoryGate)
+        {
+            if (!TryFindVirtualQueryRegionLocked(address, findNext: false, out var region) ||
+                length > region.Length ||
+                address < region.Address ||
+                length > region.Address + region.Length - address)
+            {
+                return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_NOT_FOUND;
+            }
+
+            _mappedRegionNames[region.Address] = name;
+        }
+
+        ctx[CpuRegister.Rax] = 0;
+        return (int)OrbisGen2Result.ORBIS_GEN2_OK;
+    }
+
     [SysAbiExport(
         Nid = "rVjRvHJ0X6c",
         ExportName = "sceKernelVirtualQuery",
@@ -2696,11 +2831,16 @@ public static class KernelMemoryCompatExports
         BinaryPrimitives.WriteInt32LittleEndian(payload[28..32], memoryType);
         payload[32] = unchecked((byte)stateFlags);
 
-        var name = region.IsDirect
+        string name;
-            ? "direct"
+        lock (_memoryGate)
-            : region.IsFlexible
+        {
-                ? "flexible"
+            name = _mappedRegionNames.GetValueOrDefault(region.Address)
-                : string.Empty;
+                ?? (region.IsDirect
+                    ? "direct"
+                    : region.IsFlexible
+                        ? "flexible"
+                        : string.Empty);
+        }
         if (!string.IsNullOrEmpty(name))
         {
             var nameBytes = Encoding.ASCII.GetBytes(name);
@@ -3842,118 +3982,17 @@ public static class KernelMemoryCompatExports
         ulong alignment,
         out ulong mappedAddress)
     {
-        mappedAddress = 0;
+        var executable = (protection & OrbisProtCpuExec) != 0;
-        if (length == 0)
+        return KernelVirtualRangeAllocator.TryReserve(
-        {
+            ctx,
-            return false;
+            desiredAddress,
-        }
+            length,
-
+            executable,
-        try
+            alignment,
-        {
+            allowSearch: true,
-            object memoryObject = ctx.Memory;
+            allowAllocateAtAlternative: false,
-            MethodInfo? allocateAt = null;
+            "reserve range",
-            MethodInfo? allocateAtOrAbove = null;
+            out mappedAddress);
-            var allocateAtHasAllowAlternativeArg = false;
-            for (var depth = 0; depth < 4; depth++)
-            {
-                foreach (var candidate in memoryObject.GetType().GetMethods(BindingFlags.Public | BindingFlags.Instance))
-                {
-                    var parameters = candidate.GetParameters();
-                    if (string.Equals(candidate.Name, "TryAllocateAtOrAbove", StringComparison.Ordinal) &&
-                        parameters.Length == 5 &&
-                        parameters[0].ParameterType == typeof(ulong) &&
-                        parameters[1].ParameterType == typeof(ulong) &&
-                        parameters[2].ParameterType == typeof(bool) &&
-                        parameters[3].ParameterType == typeof(ulong) &&
-                        parameters[4].ParameterType == typeof(ulong).MakeByRefType())
-                    {
-                        allocateAtOrAbove = candidate;
-                    }
-                    else if (string.Equals(candidate.Name, "AllocateAt", StringComparison.Ordinal))
-                    {
-                        if (parameters.Length == 3 &&
-                            parameters[0].ParameterType == typeof(ulong) &&
-                            parameters[1].ParameterType == typeof(ulong) &&
-                            parameters[2].ParameterType == typeof(bool))
-                        {
-                            allocateAt = candidate;
-                            allocateAtHasAllowAlternativeArg = false;
-                        }
-                        else if (parameters.Length == 4 &&
-                            parameters[0].ParameterType == typeof(ulong) &&
-                            parameters[1].ParameterType == typeof(ulong) &&
-                            parameters[2].ParameterType == typeof(bool) &&
-                            parameters[3].ParameterType == typeof(bool))
-                        {
-                            allocateAt = candidate;
-                            allocateAtHasAllowAlternativeArg = true;
-                        }
-                    }
-
-                    if (allocateAtOrAbove is not null && allocateAt is not null)
-                    {
-                        break;
-                    }
-                }
-
-                if (allocateAtOrAbove is not null || allocateAt is not null)
-                {
-                    break;
-                }
-
-                var innerProperty = memoryObject.GetType().GetProperty("Inner", BindingFlags.Public | BindingFlags.Instance);
-                if (innerProperty is null)
-                {
-                    break;
-                }
-
-                var innerValue = innerProperty.GetValue(memoryObject);
-                if (innerValue is null || ReferenceEquals(innerValue, memoryObject))
-                {
-                    break;
-                }
-
-                memoryObject = innerValue;
-            }
-
-            var executable = (protection & OrbisProtCpuExec) != 0;
-            if (allocateAtOrAbove is not null)
-            {
-                var searchArgs = new object[] { desiredAddress, length, executable, alignment, 0UL };
-                var searchResult = allocateAtOrAbove.Invoke(memoryObject, searchArgs);
-                if (searchResult is bool trueValue && trueValue &&
-                    searchArgs[4] is ulong searchedAddress && searchedAddress != 0)
-                {
-                    mappedAddress = searchedAddress;
-                    return true;
-                }
-            }
-
-            if (allocateAt is null)
-            {
-                Console.Error.WriteLine($"[LOADER][TRACE] reserve range: AllocateAt missing on {ctx.Memory.GetType().FullName}");
-                return false;
-            }
-
-            var invokeArgs = allocateAtHasAllowAlternativeArg
-                ? new object[] { desiredAddress, length, executable, false }
-                : new object[] { desiredAddress, length, executable };
-            var result = allocateAt.Invoke(memoryObject, invokeArgs);
-            if (result is not ulong allocated || allocated == 0)
-            {
-                var resultType = result?.GetType().FullName ?? "null";
-                Console.Error.WriteLine($"[LOADER][TRACE] reserve range: AllocateAt returned {resultType} value={result ?? "null"}");
-                return false;
-            }
-
-            mappedAddress = allocated;
-            return true;
-        }
-        catch
-        {
-            Console.Error.WriteLine("[LOADER][TRACE] reserve range threw while invoking AllocateAt");
-            return false;
-        }
     }
 
     private static bool IsMappedGuestRangeAvailable(
@@ -4033,6 +4072,11 @@ public static class KernelMemoryCompatExports
             return guestPath;
         }
 
+        if (TryResolveRegisteredGuestMount(guestPath, out var mountedPath))
+        {
+            return mountedPath;
+        }
+
         if (guestPath.StartsWith("/devlog/app/", StringComparison.OrdinalIgnoreCase))
         {
             var relative = NormalizeMountRelativePath(guestPath["/devlog/app/".Length..]);
@@ -4101,6 +4145,20 @@ public static class KernelMemoryCompatExports
         var app0Root = ResolveApp0Root();
         if (!string.IsNullOrWhiteSpace(app0Root))
         {
+            if (string.Equals(guestPath, "$", StringComparison.Ordinal) ||
+                string.Equals(guestPath, "$/", StringComparison.Ordinal) ||
+                string.Equals(guestPath, "$\\", StringComparison.Ordinal))
+            {
+                return app0Root;
+            }
+
+            if (guestPath.StartsWith("$/", StringComparison.Ordinal) ||
+                guestPath.StartsWith("$\\", StringComparison.Ordinal))
+            {
+                var relative = NormalizeMountRelativePath(guestPath[2..]);
+                return Path.Combine(app0Root, relative);
+            }
+
             if (string.Equals(guestPath, "/app0", StringComparison.OrdinalIgnoreCase) ||
                 string.Equals(guestPath, "app0", StringComparison.OrdinalIgnoreCase))
             {
@@ -4131,6 +4189,51 @@ public static class KernelMemoryCompatExports
         return guestPath;
     }
 
+    private static bool TryResolveRegisteredGuestMount(string guestPath, out string hostPath)
+    {
+        hostPath = string.Empty;
+        var normalizedGuestPath = NormalizeGuestStatCachePath(guestPath);
+        if (normalizedGuestPath is null)
+        {
+            return false;
+        }
+
+        string? matchedMountPoint = null;
+        string? matchedHostRoot = null;
+        lock (_guestMountGate)
+        {
+            foreach (var (mountPoint, hostRoot) in _guestMounts)
+            {
+                if ((string.Equals(normalizedGuestPath, mountPoint, StringComparison.OrdinalIgnoreCase) ||
+                     normalizedGuestPath.StartsWith(mountPoint + "/", StringComparison.OrdinalIgnoreCase)) &&
+                    (matchedMountPoint is null || mountPoint.Length > matchedMountPoint.Length))
+                {
+                    matchedMountPoint = mountPoint;
+                    matchedHostRoot = hostRoot;
+                }
+            }
+        }
+
+        if (matchedMountPoint is null || matchedHostRoot is null)
+        {
+            return false;
+        }
+
+        var relativePath = normalizedGuestPath[matchedMountPoint.Length..].TrimStart('/');
+        var candidate = Path.GetFullPath(Path.Combine(
+            matchedHostRoot,
+            NormalizeMountRelativePath(relativePath)));
+        var rootWithSeparator = Path.TrimEndingDirectorySeparator(matchedHostRoot) + Path.DirectorySeparatorChar;
+        if (!string.Equals(candidate, matchedHostRoot, StringComparison.OrdinalIgnoreCase) &&
+            !candidate.StartsWith(rootWithSeparator, StringComparison.OrdinalIgnoreCase))
+        {
+            return false;
+        }
+
+        hostPath = candidate;
+        return true;
+    }
+
     private static string? ResolveApp0Root()
     {
         var cached = Volatile.Read(ref _cachedApp0Root);
@@ -5310,6 +5413,37 @@ public static class KernelMemoryCompatExports
         }
     }
 
+    internal static bool TryReadTrackedLibcHeap(
+        ulong address,
+        Span<byte> destination)
+    {
+        if (destination.IsEmpty)
+        {
+            return true;
+        }
+
+        var length = (ulong)destination.Length;
+        lock (_libcAllocGate)
+        {
+            foreach (var (allocationAddress, allocation) in _libcAllocations)
+            {
+                var allocationSize = (ulong)allocation.Size;
+                var offset = address >= allocationAddress
+                    ? address - allocationAddress
+                    : ulong.MaxValue;
+                if (offset > allocationSize ||
+                    length > allocationSize - offset)
+                {
+                    continue;
+                }
+
+                return TryReadHostMemory(address, destination);
+            }
+        }
+
+        return false;
+    }
+
     private static bool TryAllocateLibcHeap(ulong requestedSize, nuint alignment, bool zeroFill, out ulong address)
     {
         address = 0;
@@ -5687,22 +5821,40 @@ public static class KernelMemoryCompatExports
     private static bool TryGetAprFileSize(string hostPath, out ulong size)
     {
         size = 0;
+
+        string cachePath;
         try
         {
-            var fileInfo = new FileInfo(hostPath);
+            cachePath = Path.GetFullPath(hostPath);
+        }
+        catch
+        {
+            cachePath = hostPath;
+        }
+
+        if (_aprFileSizeCache.TryGetValue(cachePath, out size))
+        {
+            return true;
+        }
+
+        try
+        {
+            var fileInfo = new FileInfo(cachePath);
             if (fileInfo.Exists)
             {
                 var length = fileInfo.Length;
                 size = length < 0 ? 0UL : unchecked((ulong)length);
+                _aprFileSizeCache.TryAdd(cachePath, size);
                 return true;
             }
 
-            if (!new DirectoryInfo(hostPath).Exists)
+            if (!new DirectoryInfo(cachePath).Exists)
             {
                 return false;
             }
 
             size = 65536;
+            _aprFileSizeCache.TryAdd(cachePath, size);
             return true;
         }
         catch
@@ -6001,6 +6153,20 @@ public static class KernelMemoryCompatExports
         }
     }
 
+    private static void InvalidateAprFileSizeCache(string hostPath)
+    {
+        try
+        {
+            hostPath = Path.GetFullPath(hostPath);
+        }
+        catch
+        {
+            // The cache key remains the original path when normalization fails.
+        }
+
+        _aprFileSizeCache.TryRemove(hostPath, out _);
+    }
+
     private static string PreviewIoBytes(byte[] buffer, int count, int maxBytes)
     {
         if (count <= 0)

src/SharpEmu.Libs/Kernel/KernelPthreadCompatExports.cs

@@ -95,6 +95,13 @@ public static class KernelPthreadCompatExports
         return (int)OrbisGen2Result.ORBIS_GEN2_OK;
     }
 
+    [SysAbiExport(
+        Nid = "7Xl257M4VNI",
+        ExportName = "pthread_equal",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libc")]
+    public static int PosixPthreadEqual(CpuContext ctx) => PthreadEqual(ctx);
+
     [SysAbiExport(
         Nid = "T72hz6ffq08",
         ExportName = "scePthreadYield",

src/SharpEmu.Libs/Kernel/KernelPthreadExtendedCompatExports.cs

@@ -717,6 +717,35 @@ public static class KernelPthreadExtendedCompatExports
         return (int)OrbisGen2Result.ORBIS_GEN2_OK;
     }
 
+    [SysAbiExport(
+        Nid = "FXPWHNk8Of0",
+        ExportName = "scePthreadAttrGetschedparam",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libKernel")]
+    public static int PthreadAttrGetschedparam(CpuContext ctx)
+    {
+        var attrAddress = ctx[CpuRegister.Rdi];
+        var schedParamAddress = ctx[CpuRegister.Rsi];
+        if (attrAddress == 0 || schedParamAddress == 0)
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
+        }
+
+        PthreadAttrState state;
+        lock (_stateGate)
+        {
+            state = GetOrCreateAttrStateLocked(attrAddress);
+        }
+
+        if (!TryWriteInt32(ctx, schedParamAddress, state.SchedPriority))
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
+        }
+
+        ctx[CpuRegister.Rax] = 0;
+        return (int)OrbisGen2Result.ORBIS_GEN2_OK;
+    }
+
     [SysAbiExport(
         Nid = "DzES9hQF4f4",
         ExportName = "scePthreadAttrSetschedparam",

src/SharpEmu.Libs/Kernel/KernelRuntimeCompatExports.cs

@@ -7,7 +7,6 @@ using System.Buffers.Binary;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.IO;
-using System.Reflection;
 using System.Runtime.InteropServices;
 using System.Runtime.Intrinsics.X86;
 using System.Security.Cryptography;
@@ -87,11 +86,11 @@ public static class KernelRuntimeCompatExports
 
         if (micros < 1000)
         {
-            // Guest worker pools use usleep(1) as a polling backoff. Periodically
+            // Guest worker pools use usleep(1) as a polling backoff. Do not turn
-            // relinquish a full host time slice so spin workers cannot starve producers.
+            // PS microsecond waits into Windows millisecond sleeps on hot paths.
-            if ((++_shortUsleepCount & 31) == 0)
+            if ((++_shortUsleepCount & 255) == 0)
             {
-                Thread.Sleep(1);
+                Thread.Sleep(0);
             }
             else
             {
@@ -739,8 +738,11 @@ public static class KernelRuntimeCompatExports
             return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_NOT_FOUND;
         }
 
-        Console.Error.WriteLine(
+        if (ShouldTraceVirtualMemory())
-            $"[LOADER][TRACE] reserve_virtual_range: req=0x{requestedAddress:X16} desired=0x{desiredAddress:X16} mapped=0x{mappedAddress:X16} len=0x{length:X16} flags=0x{flags:X8} align=0x{effectiveAlignment:X16}");
+        {
+            Console.Error.WriteLine(
+                $"[LOADER][TRACE] reserve_virtual_range: req=0x{requestedAddress:X16} desired=0x{desiredAddress:X16} mapped=0x{mappedAddress:X16} len=0x{length:X16} flags=0x{flags:X8} align=0x{effectiveAlignment:X16}");
+        }
 
         if (!ctx.TryWriteUInt64(inOutAddressPointer, mappedAddress))
         {
@@ -752,6 +754,7 @@ public static class KernelRuntimeCompatExports
             _nextReservedVirtualBase = Math.Max(_nextReservedVirtualBase, mappedAddress + length);
         }
 
+        KernelMemoryCompatExports.RegisterReservedVirtualRange(mappedAddress, length);
         return (int)OrbisGen2Result.ORBIS_GEN2_OK;
     }
 
@@ -1732,117 +1735,16 @@ public static class KernelRuntimeCompatExports
         bool allowSearch,
         out ulong mappedAddress)
     {
-        mappedAddress = 0;
+        return KernelVirtualRangeAllocator.TryReserve(
-        if (length == 0)
+            ctx,
-        {
+            desiredAddress,
-            return false;
+            length,
-        }
+            executable: false,
-
+            alignment,
-        try
+            allowSearch,
-        {
+            allowAllocateAtAlternative: allowSearch,
-            object memoryObject = ctx.Memory;
+            "reserve_virtual_range",
-            MethodInfo? allocateAt = null;
+            out mappedAddress);
-            MethodInfo? allocateAtOrAbove = null;
-            var allocateAtHasAllowAlternativeArg = false;
-            for (var depth = 0; depth < 4; depth++)
-            {
-                foreach (var candidate in memoryObject.GetType().GetMethods(BindingFlags.Public | BindingFlags.Instance))
-                {
-                    var parameters = candidate.GetParameters();
-                    if (string.Equals(candidate.Name, "TryAllocateAtOrAbove", StringComparison.Ordinal) &&
-                        parameters.Length == 5 &&
-                        parameters[0].ParameterType == typeof(ulong) &&
-                        parameters[1].ParameterType == typeof(ulong) &&
-                        parameters[2].ParameterType == typeof(bool) &&
-                        parameters[3].ParameterType == typeof(ulong) &&
-                        parameters[4].ParameterType == typeof(ulong).MakeByRefType())
-                    {
-                        allocateAtOrAbove = candidate;
-                    }
-                    else if (string.Equals(candidate.Name, "AllocateAt", StringComparison.Ordinal))
-                    {
-                        if (parameters.Length == 3 &&
-                            parameters[0].ParameterType == typeof(ulong) &&
-                            parameters[1].ParameterType == typeof(ulong) &&
-                            parameters[2].ParameterType == typeof(bool))
-                        {
-                            allocateAt = candidate;
-                            allocateAtHasAllowAlternativeArg = false;
-                        }
-                        else if (parameters.Length == 4 &&
-                            parameters[0].ParameterType == typeof(ulong) &&
-                            parameters[1].ParameterType == typeof(ulong) &&
-                            parameters[2].ParameterType == typeof(bool) &&
-                            parameters[3].ParameterType == typeof(bool))
-                        {
-                            allocateAt = candidate;
-                            allocateAtHasAllowAlternativeArg = true;
-                        }
-                    }
-
-                    if (allocateAtOrAbove is not null && allocateAt is not null)
-                    {
-                        break;
-                    }
-                }
-
-                if (allocateAtOrAbove is not null || allocateAt is not null)
-                {
-                    break;
-                }
-
-                var innerProperty = memoryObject.GetType().GetProperty("Inner", BindingFlags.Public | BindingFlags.Instance);
-                if (innerProperty is null)
-                {
-                    break;
-                }
-
-                var innerValue = innerProperty.GetValue(memoryObject);
-                if (innerValue is null || ReferenceEquals(innerValue, memoryObject))
-                {
-                    break;
-                }
-
-                memoryObject = innerValue;
-            }
-
-            if (allowSearch && allocateAtOrAbove is not null)
-            {
-                var searchArgs = new object[] { desiredAddress, length, false, alignment, 0UL };
-                var searchResult = allocateAtOrAbove.Invoke(memoryObject, searchArgs);
-                if (searchResult is bool trueValue && trueValue &&
-                    searchArgs[4] is ulong searchedAddress && searchedAddress != 0)
-                {
-                    mappedAddress = searchedAddress;
-                    return true;
-                }
-            }
-
-            if (allocateAt is null)
-            {
-                Console.Error.WriteLine($"[LOADER][TRACE] reserve_virtual_range: AllocateAt missing on {ctx.Memory.GetType().FullName}");
-                return false;
-            }
-
-            var invokeArgs = allocateAtHasAllowAlternativeArg
-                ? new object[] { desiredAddress, length, false, allowSearch }
-                : new object[] { desiredAddress, length, false };
-            var result = allocateAt.Invoke(memoryObject, invokeArgs);
-            if (result is not ulong allocated || allocated == 0)
-            {
-                var resultType = result?.GetType().FullName ?? "null";
-                Console.Error.WriteLine($"[LOADER][TRACE] reserve_virtual_range: AllocateAt returned {resultType} value={result ?? "null"}");
-                return false;
-            }
-
-            mappedAddress = allocated;
-            return true;
-        }
-        catch
-        {
-            Console.Error.WriteLine("[LOADER][TRACE] reserve_virtual_range: AllocateAt invocation threw");
-            return false;
-        }
     }
 
     private static ulong AlignUp(ulong value, ulong alignment)
@@ -1855,4 +1757,9 @@ public static class KernelRuntimeCompatExports
         var mask = alignment - 1;
         return (value + mask) & ~mask;
     }
+
+    private static bool ShouldTraceVirtualMemory()
+    {
+        return string.Equals(Environment.GetEnvironmentVariable("SHARPEMU_LOG_VIRTUAL_MEMORY"), "1", StringComparison.Ordinal);
+    }
 }

src/SharpEmu.Libs/Kernel/KernelVirtualRangeAllocator.cs

@@ -0,0 +1,159 @@
+// Copyright (C) 2026 SharpEmu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+using SharpEmu.HLE;
+using System;
+using System.Collections.Concurrent;
+using System.Reflection;
+
+namespace SharpEmu.Libs.Kernel;
+
+internal static class KernelVirtualRangeAllocator
+{
+    private static readonly ConcurrentDictionary<Type, Accessor> _accessors = new();
+
+    public static bool TryReserve(
+        CpuContext ctx,
+        ulong desiredAddress,
+        ulong length,
+        bool executable,
+        ulong alignment,
+        bool allowSearch,
+        bool allowAllocateAtAlternative,
+        string traceName,
+        out ulong mappedAddress)
+    {
+        mappedAddress = 0;
+        if (length == 0)
+        {
+            return false;
+        }
+
+        try
+        {
+            if (!TryResolveAccessor(ctx.Memory, out var target, out var accessor))
+            {
+                Console.Error.WriteLine($"[LOADER][TRACE] {traceName}: AllocateAt missing on {ctx.Memory.GetType().FullName}");
+                return false;
+            }
+
+            if (allowSearch && accessor.AllocateAtOrAbove is not null)
+            {
+                var searchArgs = new object[] { desiredAddress, length, executable, alignment, 0UL };
+                var searchResult = accessor.AllocateAtOrAbove.Invoke(target, searchArgs);
+                if (searchResult is bool trueValue && trueValue &&
+                    searchArgs[4] is ulong searchedAddress && searchedAddress != 0)
+                {
+                    mappedAddress = searchedAddress;
+                    return true;
+                }
+            }
+
+            if (accessor.AllocateAt is null)
+            {
+                Console.Error.WriteLine($"[LOADER][TRACE] {traceName}: AllocateAt missing on {target.GetType().FullName}");
+                return false;
+            }
+
+            var invokeArgs = accessor.AllocateAtHasAllowAlternativeArg
+                ? new object[] { desiredAddress, length, executable, allowAllocateAtAlternative }
+                : new object[] { desiredAddress, length, executable };
+            var result = accessor.AllocateAt.Invoke(target, invokeArgs);
+            if (result is not ulong allocated || allocated == 0)
+            {
+                var resultType = result?.GetType().FullName ?? "null";
+                Console.Error.WriteLine($"[LOADER][TRACE] {traceName}: AllocateAt returned {resultType} value={result ?? "null"}");
+                return false;
+            }
+
+            mappedAddress = allocated;
+            return true;
+        }
+        catch
+        {
+            Console.Error.WriteLine($"[LOADER][TRACE] {traceName}: AllocateAt invocation threw");
+            return false;
+        }
+    }
+
+    private static bool TryResolveAccessor(object rootMemory, out object target, out Accessor accessor)
+    {
+        target = rootMemory;
+        accessor = default;
+
+        for (var depth = 0; depth < 4; depth++)
+        {
+            accessor = _accessors.GetOrAdd(target.GetType(), DiscoverAccessor);
+            if (accessor.AllocateAt is not null || accessor.AllocateAtOrAbove is not null)
+            {
+                return true;
+            }
+
+            if (accessor.InnerProperty is null)
+            {
+                break;
+            }
+
+            var innerValue = accessor.InnerProperty.GetValue(target);
+            if (innerValue is null || ReferenceEquals(innerValue, target))
+            {
+                break;
+            }
+
+            target = innerValue;
+        }
+
+        return false;
+    }
+
+    private static Accessor DiscoverAccessor(Type type)
+    {
+        MethodInfo? allocateAt = null;
+        MethodInfo? allocateAtOrAbove = null;
+        var allocateAtHasAllowAlternativeArg = false;
+
+        foreach (var candidate in type.GetMethods(BindingFlags.Public | BindingFlags.Instance))
+        {
+            var parameters = candidate.GetParameters();
+            if (string.Equals(candidate.Name, "TryAllocateAtOrAbove", StringComparison.Ordinal) &&
+                parameters.Length == 5 &&
+                parameters[0].ParameterType == typeof(ulong) &&
+                parameters[1].ParameterType == typeof(ulong) &&
+                parameters[2].ParameterType == typeof(bool) &&
+                parameters[3].ParameterType == typeof(ulong) &&
+                parameters[4].ParameterType == typeof(ulong).MakeByRefType())
+            {
+                allocateAtOrAbove = candidate;
+            }
+            else if (string.Equals(candidate.Name, "AllocateAt", StringComparison.Ordinal))
+            {
+                if (parameters.Length == 3 &&
+                    parameters[0].ParameterType == typeof(ulong) &&
+                    parameters[1].ParameterType == typeof(ulong) &&
+                    parameters[2].ParameterType == typeof(bool))
+                {
+                    allocateAt = candidate;
+                    allocateAtHasAllowAlternativeArg = false;
+                }
+                else if (parameters.Length == 4 &&
+                    parameters[0].ParameterType == typeof(ulong) &&
+                    parameters[1].ParameterType == typeof(ulong) &&
+                    parameters[2].ParameterType == typeof(bool) &&
+                    parameters[3].ParameterType == typeof(bool))
+                {
+                    allocateAt = candidate;
+                    allocateAtHasAllowAlternativeArg = true;
+                }
+            }
+        }
+
+        var innerProperty = type.GetProperty("Inner", BindingFlags.Public | BindingFlags.Instance);
+        return new Accessor(allocateAt, allocateAtOrAbove, allocateAtHasAllowAlternativeArg, innerProperty);
+    }
+
+    private readonly record struct Accessor(
+        MethodInfo? AllocateAt,
+        MethodInfo? AllocateAtOrAbove,
+        bool AllocateAtHasAllowAlternativeArg,
+        PropertyInfo? InnerProperty);
+}

src/SharpEmu.Libs/Ngs2/Ngs2Exports.cs

@@ -0,0 +1,322 @@
+// Copyright (C) 2026 SharpEmu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+using SharpEmu.HLE;
+using SharpEmu.Libs.Kernel;
+using System.Buffers.Binary;
+using System.Threading;
+
+namespace SharpEmu.Libs.Ngs2;
+
+public static class Ngs2Exports
+{
+    private const int OrbisNgs2ErrorInvalidOutAddress = unchecked((int)0x804A0053);
+    private const int OrbisNgs2ErrorInvalidSystemHandle = unchecked((int)0x804A0230);
+    private const int OrbisNgs2ErrorInvalidRackHandle = unchecked((int)0x804A0261);
+    private const int OrbisNgs2ErrorInvalidVoiceHandle = unchecked((int)0x804A0300);
+    private const ulong HandleStorageSize = 0x20;
+    private const int RenderBufferInfoSize = 0x18;
+    private const ulong MaximumRenderBufferSize = 16 * 1024 * 1024;
+
+    private static readonly object StateGate = new();
+    private static readonly Dictionary<ulong, SystemState> Systems = new();
+    private static readonly Dictionary<ulong, RackState> Racks = new();
+    private static readonly Dictionary<ulong, VoiceState> Voices = new();
+    private static long _nextUid;
+    private static long _renderCount;
+
+    private sealed record SystemState(uint Uid);
+    private sealed record RackState(ulong SystemHandle, uint RackId);
+    private sealed record VoiceState(ulong RackHandle, uint VoiceIndex);
+
+    [SysAbiExport(
+        Nid = "mPYgU4oYpuY",
+        ExportName = "sceNgs2SystemCreateWithAllocator",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceNgs2")]
+    public static int Ngs2SystemCreateWithAllocator(CpuContext ctx)
+    {
+        var outHandleAddress = ctx[CpuRegister.Rdx];
+        if (outHandleAddress == 0)
+        {
+            return SetReturn(ctx, OrbisNgs2ErrorInvalidOutAddress);
+        }
+
+        if (!TryCreateHandle(ctx, type: 1, ownerHandle: 0, out var handle) ||
+            !ctx.TryWriteUInt64(outHandleAddress, handle))
+        {
+            return SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT);
+        }
+
+        lock (StateGate)
+        {
+            Systems[handle] = new SystemState(unchecked((uint)Interlocked.Increment(ref _nextUid)));
+        }
+
+        return SetReturn(ctx, 0);
+    }
+
+    [SysAbiExport(
+        Nid = "u-WrYDaJA3k",
+        ExportName = "sceNgs2SystemDestroy",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceNgs2")]
+    public static int Ngs2SystemDestroy(CpuContext ctx)
+    {
+        var handle = ctx[CpuRegister.Rdi];
+        lock (StateGate)
+        {
+            if (!Systems.Remove(handle))
+            {
+                return SetReturn(ctx, OrbisNgs2ErrorInvalidSystemHandle);
+            }
+
+            var rackHandles = Racks
+                .Where(pair => pair.Value.SystemHandle == handle)
+                .Select(pair => pair.Key)
+                .ToArray();
+            foreach (var rackHandle in rackHandles)
+            {
+                RemoveRackLocked(rackHandle);
+            }
+        }
+
+        return SetReturn(ctx, 0);
+    }
+
+    [SysAbiExport(
+        Nid = "U546k6orxQo",
+        ExportName = "sceNgs2RackCreateWithAllocator",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceNgs2")]
+    public static int Ngs2RackCreateWithAllocator(CpuContext ctx)
+    {
+        var systemHandle = ctx[CpuRegister.Rdi];
+        var rackId = unchecked((uint)ctx[CpuRegister.Rsi]);
+        var outHandleAddress = ctx[CpuRegister.R8];
+        lock (StateGate)
+        {
+            if (!Systems.ContainsKey(systemHandle))
+            {
+                return SetReturn(ctx, OrbisNgs2ErrorInvalidSystemHandle);
+            }
+        }
+
+        if (outHandleAddress == 0)
+        {
+            return SetReturn(ctx, OrbisNgs2ErrorInvalidOutAddress);
+        }
+
+        if (!TryCreateHandle(ctx, type: 2, systemHandle, out var handle) ||
+            !ctx.TryWriteUInt64(outHandleAddress, handle))
+        {
+            return SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT);
+        }
+
+        lock (StateGate)
+        {
+            Racks[handle] = new RackState(systemHandle, rackId);
+        }
+
+        return SetReturn(ctx, 0);
+    }
+
+    [SysAbiExport(
+        Nid = "lCqD7oycmIM",
+        ExportName = "sceNgs2RackDestroy",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceNgs2")]
+    public static int Ngs2RackDestroy(CpuContext ctx)
+    {
+        var handle = ctx[CpuRegister.Rdi];
+        lock (StateGate)
+        {
+            if (!Racks.ContainsKey(handle))
+            {
+                return SetReturn(ctx, OrbisNgs2ErrorInvalidRackHandle);
+            }
+
+            RemoveRackLocked(handle);
+        }
+
+        return SetReturn(ctx, 0);
+    }
+
+    [SysAbiExport(
+        Nid = "MwmHz8pAdAo",
+        ExportName = "sceNgs2RackGetVoiceHandle",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceNgs2")]
+    public static int Ngs2RackGetVoiceHandle(CpuContext ctx)
+    {
+        var rackHandle = ctx[CpuRegister.Rdi];
+        var voiceIndex = unchecked((uint)ctx[CpuRegister.Rsi]);
+        var outHandleAddress = ctx[CpuRegister.Rdx];
+        lock (StateGate)
+        {
+            if (!Racks.ContainsKey(rackHandle))
+            {
+                return SetReturn(ctx, OrbisNgs2ErrorInvalidRackHandle);
+            }
+
+            var existing = Voices.FirstOrDefault(
+                pair => pair.Value.RackHandle == rackHandle && pair.Value.VoiceIndex == voiceIndex);
+            if (existing.Key != 0)
+            {
+                return ctx.TryWriteUInt64(outHandleAddress, existing.Key)
+                    ? SetReturn(ctx, 0)
+                    : SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT);
+            }
+        }
+
+        if (outHandleAddress == 0)
+        {
+            return SetReturn(ctx, OrbisNgs2ErrorInvalidOutAddress);
+        }
+
+        if (!TryCreateHandle(ctx, type: 4, rackHandle, out var handle) ||
+            !ctx.TryWriteUInt64(outHandleAddress, handle))
+        {
+            return SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT);
+        }
+
+        lock (StateGate)
+        {
+            Voices[handle] = new VoiceState(rackHandle, voiceIndex);
+        }
+
+        return SetReturn(ctx, 0);
+    }
+
+    [SysAbiExport(
+        Nid = "uu94irFOGpA",
+        ExportName = "sceNgs2VoiceControl",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceNgs2")]
+    public static int Ngs2VoiceControl(CpuContext ctx)
+    {
+        lock (StateGate)
+        {
+            return SetReturn(
+                ctx,
+                Voices.ContainsKey(ctx[CpuRegister.Rdi]) ? 0 : OrbisNgs2ErrorInvalidVoiceHandle);
+        }
+    }
+
+    [SysAbiExport(
+        Nid = "AbYvTOZ8Pts",
+        ExportName = "sceNgs2VoiceRunCommands",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceNgs2")]
+    public static int Ngs2VoiceRunCommands(CpuContext ctx) => Ngs2VoiceControl(ctx);
+
+    [SysAbiExport(
+        Nid = "i0VnXM-C9fc",
+        ExportName = "sceNgs2SystemRender",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceNgs2")]
+    public static int Ngs2SystemRender(CpuContext ctx)
+    {
+        var systemHandle = ctx[CpuRegister.Rdi];
+        var bufferInfoAddress = ctx[CpuRegister.Rsi];
+        var bufferInfoCount = unchecked((uint)ctx[CpuRegister.Rdx]);
+        lock (StateGate)
+        {
+            if (!Systems.ContainsKey(systemHandle))
+            {
+                return SetReturn(ctx, OrbisNgs2ErrorInvalidSystemHandle);
+            }
+        }
+
+        if (bufferInfoCount != 0 && bufferInfoAddress == 0)
+        {
+            return SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT);
+        }
+
+        for (uint i = 0; i < bufferInfoCount; i++)
+        {
+            var entryAddress = bufferInfoAddress + (i * RenderBufferInfoSize);
+            if (!ctx.TryReadUInt64(entryAddress, out var bufferAddress) ||
+                !ctx.TryReadUInt64(entryAddress + 8, out var bufferSize))
+            {
+                return SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT);
+            }
+
+            if (bufferAddress != 0 && bufferSize != 0)
+            {
+                if (bufferSize > MaximumRenderBufferSize || !TryClearGuestBuffer(ctx, bufferAddress, bufferSize))
+                {
+                    return SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT);
+                }
+            }
+        }
+
+        var count = Interlocked.Increment(ref _renderCount);
+        if (ShouldTrace() && (count <= 4 || count % 10_000 == 0))
+        {
+            Console.Error.WriteLine(
+                $"[LOADER][TRACE] ngs2.render#{count} system=0x{systemHandle:X16} buffers={bufferInfoCount}");
+        }
+
+        return SetReturn(ctx, 0);
+    }
+
+    private static bool TryCreateHandle(CpuContext ctx, uint type, ulong ownerHandle, out ulong handle)
+    {
+        handle = 0;
+        if (!KernelMemoryCompatExports.TryAllocateHleData(ctx, HandleStorageSize, 16, out handle))
+        {
+            return false;
+        }
+
+        Span<byte> data = stackalloc byte[(int)HandleStorageSize];
+        data.Clear();
+        BinaryPrimitives.WriteUInt64LittleEndian(data[0..8], handle);
+        BinaryPrimitives.WriteUInt64LittleEndian(data[8..16], ownerHandle);
+        BinaryPrimitives.WriteUInt32LittleEndian(data[16..20], 1);
+        BinaryPrimitives.WriteUInt32LittleEndian(data[24..28], type);
+        return ctx.Memory.TryWrite(handle, data);
+    }
+
+    private static bool TryClearGuestBuffer(CpuContext ctx, ulong address, ulong length)
+    {
+        Span<byte> zeroes = stackalloc byte[4096];
+        zeroes.Clear();
+        for (ulong offset = 0; offset < length;)
+        {
+            var chunkSize = (int)Math.Min((ulong)zeroes.Length, length - offset);
+            if (!ctx.Memory.TryWrite(address + offset, zeroes[..chunkSize]))
+            {
+                return false;
+            }
+
+            offset += unchecked((uint)chunkSize);
+        }
+
+        return true;
+    }
+
+    private static void RemoveRackLocked(ulong rackHandle)
+    {
+        Racks.Remove(rackHandle);
+        foreach (var voiceHandle in Voices
+                     .Where(pair => pair.Value.RackHandle == rackHandle)
+                     .Select(pair => pair.Key)
+                     .ToArray())
+        {
+            Voices.Remove(voiceHandle);
+        }
+    }
+
+    private static bool ShouldTrace() =>
+        string.Equals(
+            Environment.GetEnvironmentVariable("SHARPEMU_LOG_NGS2"),
+            "1",
+            StringComparison.Ordinal);
+
+    private static int SetReturn(CpuContext ctx, int result)
+    {
+        ctx[CpuRegister.Rax] = unchecked((ulong)result);
+        return result;
+    }
+}

src/SharpEmu.Libs/Pad/PadExports.cs

@@ -4,6 +4,7 @@
 using SharpEmu.HLE;
 using System.Buffers.Binary;
 using System.Diagnostics;
+using System.Runtime.InteropServices;
 
 namespace SharpEmu.Libs.Pad;
 
@@ -58,6 +59,7 @@ public static class PadExports
             return SetReturn(ctx, OrbisPadErrorDeviceNotConnected);
         }
 
+        Console.Error.WriteLine("[LOADER][INFO] Keyboard controls: Arrow keys = D-pad, WASD = left stick, IJKL = right stick, Z/Enter = Cross, X/Esc = Circle, C = Square, V = Triangle, Q = L1, E = R1, R = L2, F = R2, Tab/Backspace = Options");
         return SetReturn(ctx, PrimaryPadHandle);
     }
 
@@ -158,14 +160,33 @@ public static class PadExports
             : SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT);
     }
 
+    [SysAbiExport(
+    Nid = "W2G-yoyMF5U",
+    ExportName = "scePadSetVibrationMode",
+    Target = Generation.Gen4 | Generation.Gen5,
+    LibraryName = "libScePad")]
+    public static int PadSetVibrationMode(CpuContext ctx)
+    {
+        return SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_OK);
+    }
+
     private static bool WriteNeutralPadData(CpuContext ctx, ulong dataAddress)
     {
         Span<byte> data = stackalloc byte[PadDataSize];
         data.Clear();
-        data[0x04] = 128;
+        var acceptsKeyboardInput = IsEmulatorWindowFocused();
-        data[0x05] = 128;
+        var buttons = acceptsKeyboardInput ? ReadKeyboardButtons() : 0;
-        data[0x06] = 128;
+        BinaryPrimitives.WriteUInt32LittleEndian(data[0x00..], buttons);
-        data[0x07] = 128;
+        var leftX = acceptsKeyboardInput ? ReadAnalogStick(IsKeyDown(0x41), IsKeyDown(0x44)) : (byte)128;
+        var leftY = acceptsKeyboardInput ? ReadAnalogStick(IsKeyDown(0x57), IsKeyDown(0x53)) : (byte)128;
+        var rightX = acceptsKeyboardInput ? ReadAnalogStick(IsKeyDown(0x4A), IsKeyDown(0x4C)) : (byte)128;
+        var rightY = acceptsKeyboardInput ? ReadAnalogStick(IsKeyDown(0x49), IsKeyDown(0x4B)) : (byte)128;
+        data[0x04] = leftX;
+        data[0x05] = leftY;
+        data[0x06] = rightX;
+        data[0x07] = rightY;
+        data[0x08] = acceptsKeyboardInput && IsKeyDown(0x52) ? (byte)255 : (byte)0;
+        data[0x09] = acceptsKeyboardInput && IsKeyDown(0x46) ? (byte)255 : (byte)0;
         BinaryPrimitives.WriteSingleLittleEndian(data[0x18..], 1.0f);
         data[0x4C] = 1;
         var timestampTicks = Stopwatch.GetTimestamp();
@@ -185,4 +206,58 @@ public static class PadExports
         ctx[CpuRegister.Rax] = unchecked((ulong)result);
         return result;
     }
+
+    [DllImport("user32.dll")]
+    private static extern short GetAsyncKeyState(int vKey);
+
+    [DllImport("user32.dll")]
+    private static extern nint GetForegroundWindow();
+
+    [DllImport("user32.dll")]
+    private static extern uint GetWindowThreadProcessId(nint hWnd, out uint processId);
+
+    private static bool IsKeyDown(int vk) =>
+        (GetAsyncKeyState(vk) & 0x8000) != 0;
+
+    private static bool IsEmulatorWindowFocused()
+    {
+        var foregroundWindow = GetForegroundWindow();
+        if (foregroundWindow == 0)
+        {
+            return false;
+        }
+
+        GetWindowThreadProcessId(foregroundWindow, out var processId);
+        return processId == (uint)Environment.ProcessId;
+    }
+
+    private static uint ReadKeyboardButtons()
+    {
+        uint buttons = 0;
+        // D-pad
+        if (IsKeyDown(0x25)) buttons |= 0x0080; // Left
+        if (IsKeyDown(0x27)) buttons |= 0x0020; // Right
+        if (IsKeyDown(0x26)) buttons |= 0x0010; // Up
+        if (IsKeyDown(0x28)) buttons |= 0x0040; // Down
+        // Face buttons
+        if (IsKeyDown(0x5A) || IsKeyDown(0x0D)) buttons |= 0x4000; // Z / Enter = Cross
+        if (IsKeyDown(0x58) || IsKeyDown(0x1B)) buttons |= 0x2000; // X / Escape = Circle
+        if (IsKeyDown(0x43)) buttons |= 0x8000; // C = Square
+        if (IsKeyDown(0x56)) buttons |= 0x1000; // V = Triangle
+        // Shoulder buttons
+        if (IsKeyDown(0x51)) buttons |= 0x0400; // Q = L1
+        if (IsKeyDown(0x45)) buttons |= 0x0800; // E = R1
+        if (IsKeyDown(0x52)) buttons |= 0x0100; // R = L2 (digital)
+        if (IsKeyDown(0x46)) buttons |= 0x0200; // F = R2 (digital)
+        // Options (Start)
+        if (IsKeyDown(0x09) || IsKeyDown(0x08)) buttons |= 0x0008; // Tab / Backspace = Options
+        return buttons;
+    }
+
+    private static byte ReadAnalogStick(bool negative, bool positive)
+    {
+        if (negative && !positive) return 0;
+        if (positive && !negative) return 255;
+        return 128;
+    }
 }

src/SharpEmu.Libs/SaveData/SaveDataExports.cs

@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 using SharpEmu.HLE;
+using SharpEmu.Libs.Kernel;
 using System.Buffers.Binary;
 using System.Text;
 
@@ -10,6 +11,8 @@ namespace SharpEmu.Libs.SaveData;
 public static class SaveDataExports
 {
     private const int OrbisSaveDataErrorParameter = unchecked((int)0x809F0000);
+    private const int OrbisSaveDataErrorExists = unchecked((int)0x809F0007);
+    private const int OrbisSaveDataErrorNotFound = unchecked((int)0x809F0008);
     private const int OrbisSaveDataErrorInternal = unchecked((int)0x809F000B);
     private const int SaveDataTitleIdSize = 10;
     private const int SaveDataDirNameSize = 32;
@@ -23,6 +26,9 @@ public static class SaveDataExports
     private const ulong ResultInfosOffset = 0x20;
     private const uint SortKeyFreeBlocks = 5;
     private const uint SortOrderDescent = 1;
+    private const uint MountModeCreate = 1u << 2;
+    private const uint MountModeCreate2 = 1u << 5;
+    private const int MountResultSize = 0x40;
     private static readonly object _stateGate = new();
     private static string? _titleId;
 
@@ -149,6 +155,125 @@ public static class SaveDataExports
         }
     }
 
+    [SysAbiExport(
+        Nid = "ZP4e7rlzOUk",
+        ExportName = "sceSaveDataMount3",
+        Target = Generation.Gen5,
+        LibraryName = "libSceSaveData")]
+    public static int SaveDataMount3(CpuContext ctx)
+    {
+        var mountAddress = ctx[CpuRegister.Rdi];
+        var resultAddress = ctx[CpuRegister.Rsi];
+        if (mountAddress == 0 || resultAddress == 0)
+        {
+            return SetReturn(ctx, OrbisSaveDataErrorParameter);
+        }
+
+        if (!TryReadInt32(ctx, mountAddress, out var userId) ||
+            !ctx.TryReadUInt64(mountAddress + 0x08, out var dirNameAddress) ||
+            !ctx.TryReadUInt64(mountAddress + 0x10, out var blocks) ||
+            !ctx.TryReadUInt64(mountAddress + 0x18, out var systemBlocks) ||
+            !TryReadUInt32(ctx, mountAddress + 0x20, out var mountMode) ||
+            !TryReadUInt32(ctx, mountAddress + 0x24, out var resource) ||
+            !TryReadUInt32(ctx, mountAddress + 0x28, out var mode) ||
+            dirNameAddress == 0 ||
+            !TryReadFixedAscii(ctx, dirNameAddress, SaveDataDirNameSize, out var dirName))
+        {
+            return SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT);
+        }
+
+        if (userId < 0 || string.IsNullOrWhiteSpace(dirName))
+        {
+            return SetReturn(ctx, OrbisSaveDataErrorParameter);
+        }
+
+        try
+        {
+            var titleId = ResolveConfiguredTitleId();
+            var savePath = Path.Combine(
+                ResolveTitleSaveRoot(userId, titleId),
+                SanitizePathSegment(dirName));
+            var existed = Directory.Exists(savePath);
+            var create = (mountMode & MountModeCreate) != 0;
+            var createIfMissing = (mountMode & MountModeCreate2) != 0;
+
+            if (!existed && !create && !createIfMissing)
+            {
+                return SetReturn(ctx, OrbisSaveDataErrorNotFound);
+            }
+
+            if (existed && create)
+            {
+                return SetReturn(ctx, OrbisSaveDataErrorExists);
+            }
+
+            if (!existed)
+            {
+                Directory.CreateDirectory(savePath);
+            }
+
+            const string mountPoint = "/savedata0";
+            KernelMemoryCompatExports.RegisterGuestPathMount(mountPoint, savePath);
+
+            Span<byte> result = stackalloc byte[MountResultSize];
+            result.Clear();
+            WriteAscii(result[..16], mountPoint);
+            BinaryPrimitives.WriteUInt32LittleEndian(result[0x1C..], createIfMissing && !existed ? 1u : 0u);
+            if (!ctx.Memory.TryWrite(resultAddress, result))
+            {
+                return SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT);
+            }
+
+            TraceSaveData(
+                $"mount3 user={userId} title={titleId} dir={dirName} blocks={blocks} " +
+                $"system_blocks={systemBlocks} mount_mode=0x{mountMode:X} resource={resource} mode={mode} " +
+                $"mount_point={mountPoint} created={!existed} root='{savePath}'");
+            return SetReturn(ctx, 0);
+        }
+        catch (IOException)
+        {
+            return SetReturn(ctx, OrbisSaveDataErrorInternal);
+        }
+        catch (UnauthorizedAccessException)
+        {
+            return SetReturn(ctx, OrbisSaveDataErrorInternal);
+        }
+        catch (ArgumentException)
+        {
+            return SetReturn(ctx, OrbisSaveDataErrorParameter);
+        }
+    }
+
+    private static int _nextTransactionResource;
+    [SysAbiExport(
+        Nid = "gjRZNnw0JPE",
+        ExportName = "sceSaveDataCreateTransactionResource",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceSaveData")]
+    public static int SaveDataCreateTransactionResource(CpuContext ctx)
+    {
+        var userId = unchecked((int)ctx[CpuRegister.Rdi]);
+        var reserved = ctx[CpuRegister.Rsi];
+        var resourceAddress = ctx[CpuRegister.Rdx];
+
+        if (resourceAddress == 0)
+        {
+            return SetReturn(ctx, OrbisSaveDataErrorParameter);
+        }
+
+        var id = (uint)Interlocked.Increment(ref _nextTransactionResource);
+
+        if (!TryWriteUInt32(ctx, resourceAddress, id))
+        {
+            return SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT);
+        }
+
+        TraceSaveData(
+            $"create_transaction_resource user={userId} reserved=0x{reserved:X} resource_addr=0x{resourceAddress:X} id={id}");
+
+        return SetReturn(ctx, 0);
+    }
+
     private static bool TryReadSearchCond(CpuContext ctx, ulong address, out SearchCond cond)
     {
         cond = default;
@@ -305,7 +430,7 @@ public static class SaveDataExports
     {
         var configured = Environment.GetEnvironmentVariable("SHARPEMU_SAVEDATA_DIR");
         var root = string.IsNullOrWhiteSpace(configured)
-            ? Path.Combine(Environment.CurrentDirectory, "user", "savedata")
+            ? Path.Combine(AppContext.BaseDirectory, "user", "savedata")
             : configured;
         return Path.GetFullPath(root);
     }

src/SharpEmu.Libs/SharpEmu.Libs.csproj

@@ -10,6 +10,7 @@ SPDX-License-Identifier: GPL-2.0-or-later
 
   <ItemGroup>
     <PackageReference Include="Silk.NET.Vulkan" />
+    <PackageReference Include="Silk.NET.Vulkan.Extensions.EXT" />
     <PackageReference Include="Silk.NET.Vulkan.Extensions.KHR" />
     <PackageReference Include="Silk.NET.Windowing" />
   </ItemGroup>

src/SharpEmu.Libs/VideoOut/VideoOutExports.cs

@@ -4,6 +4,7 @@
 using SharpEmu.HLE;
 using SharpEmu.Libs.Kernel;
 using System.Buffers.Binary;
+using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
 using System.Threading;
 
@@ -48,6 +49,13 @@ public static class VideoOutExports
     private static int _frameDumpCount;
     private static long _nextFrameDumpIndex;
     private static string _windowTitle = "SharpEmu VideoOut";
+    private static readonly bool _logFrameRate = string.Equals(
+        Environment.GetEnvironmentVariable("SHARPEMU_LOG_VIDEOOUT_FPS"),
+        "1",
+        StringComparison.Ordinal);
+    private static long _frameRateWindowStart = Stopwatch.GetTimestamp();
+    private static long _submittedFrameCount;
+    private static long _presentedFrameCount;
 
     public static void ConfigureApplicationInfo(string? title, string? titleId, string? version)
     {
@@ -812,9 +820,46 @@ public static class VideoOutExports
         }
 
         TraceVideoOut($"videoout.submit_flip handle={handle} index={bufferIndex} mode={flipMode} arg={flipArg} events={flipEvents.Count}");
+        ReportFrameRate(presented: false);
         return (int)OrbisGen2Result.ORBIS_GEN2_OK;
     }
 
+    internal static void ReportPresentedFrame() =>
+        ReportFrameRate(presented: true);
+
+    private static void ReportFrameRate(bool presented)
+    {
+        if (!_logFrameRate)
+        {
+            return;
+        }
+
+        if (presented)
+        {
+            Interlocked.Increment(ref _presentedFrameCount);
+        }
+        else
+        {
+            Interlocked.Increment(ref _submittedFrameCount);
+        }
+
+        var started = Volatile.Read(ref _frameRateWindowStart);
+        var now = Stopwatch.GetTimestamp();
+        var elapsedTicks = now - started;
+        if (elapsedTicks < Stopwatch.Frequency ||
+            Interlocked.CompareExchange(ref _frameRateWindowStart, now, started) != started)
+        {
+            return;
+        }
+
+        var elapsedSeconds = (double)elapsedTicks / Stopwatch.Frequency;
+        var submitted = Interlocked.Exchange(ref _submittedFrameCount, 0);
+        var presentedCount = Interlocked.Exchange(ref _presentedFrameCount, 0);
+        Console.Error.WriteLine(
+            $"[LOADER][PERF] videoout submitted_fps={submitted / elapsedSeconds:F1} " +
+            $"presented_fps={presentedCount / elapsedSeconds:F1}");
+    }
+
     private static int RegisterBufferRange(VideoOutPortState port, int startIndex, ReadOnlySpan<ulong> addresses, BufferAttribute attribute, int requestedGroupIndex = -1)
     {
         lock (_stateGate)

src/SharpEmu.Libs/packages.lock.json

@@ -11,6 +11,16 @@
           "Silk.NET.Core": "2.23.0"
         }
       },
+      "Silk.NET.Vulkan.Extensions.EXT": {
+        "type": "Direct",
+        "requested": "[2.23.0, )",
+        "resolved": "2.23.0",
+        "contentHash": "+Oth189ksRiL6HvGCwIdnsYHawqrbO8y49u1H61z3wsfcHhQZeVDYe/wF5LD7fk3NcdgDvwFD3mLm1QWhdZySw==",
+        "dependencies": {
+          "Silk.NET.Core": "2.23.0",
+          "Silk.NET.Vulkan": "2.23.0"
+        }
+      },
       "Silk.NET.Vulkan.Extensions.KHR": {
         "type": "Direct",
         "requested": "[2.23.0, )",