Load console identity from NAND setting.txt

two upstream LLVM bugs currently prevent building on some of the newest distros. There is no current LLVM release that works on them so we are pending fixes from LLVM
https://github.com/patchzyy/Wiicompiled/issues/136

Launcher/Build-Installer.ps1

@@ -281,7 +281,7 @@ foreach ($required in @('ToolkitFingerprint','TranslationFingerprint','NativeToo
 
 $manifest = [ordered]@{
     SchemaVersion = 2
-    ProductVersion = '0.2.27'
+    ProductVersion = '0.2.28'
     ExpectedGameId = $pins.GameId
     ExpectedDolSha256 = $pins.DolSha256
     ExpectedRelSha256 = $pins.RelSha256

Launcher/Prepare-NativePrebuilt.sh

@@ -88,7 +88,7 @@ assert_file "$ninja_bin" "Portable Ninja"
 assert_file "$cc" "Portable C compiler"
 assert_file "$cxx" "Portable C++ compiler"
 assert_dir "$aurora_source" "aurora-main source tree"
-clang_binary=$(normalize "$toolchain_dir/bin/clang-23")
+clang_binary=$(normalize "$toolchain_dir/bin/clang-22")
 assert_file "$clang_binary" "Portable clang driver binary"
 
 (( parallel > 0 )) || parallel=$(nproc)

Launcher/WiiCompiled.Setup.Common.Cli/WiiCompiled.Setup.Common.Cli.csproj

@@ -6,7 +6,7 @@
     <Nullable>enable</Nullable>
     <RootNamespace>WiiCompiled.Setup.Common.Cli</RootNamespace>
     <AssemblyName>WiiCompiled.Setup.Common.Cli</AssemblyName>
-    <Version>0.2.22</Version>
+    <Version>0.2.28</Version>
     <Authors>patchzy</Authors>
     <Product>WiiCompiled</Product>
     <Description>Packaging-time helper: resolves (downloading if needed) the nodtool binary bundled by build-appimage.sh and Build-Installer.ps1</Description>

Launcher/WiiCompiled.Setup.Common/WiiCompiled.Setup.Common.csproj

@@ -5,7 +5,7 @@
     <Nullable>enable</Nullable>
     <RootNamespace>WiiCompiled.Setup.Common</RootNamespace>
     <AssemblyName>WiiCompiled.Setup.Common</AssemblyName>
-    <Version>0.2.22</Version>
+    <Version>0.2.28</Version>
     <Authors>patchzy</Authors>
     <Product>WiiCompiled</Product>
     <Description>Shared nodtool/Retro-WFC-payload logic used by both the Windows and Linux installers</Description>

Launcher/WiiCompiled.Setup.Linux/Models.cs

@@ -3,7 +3,7 @@ namespace WiiCompiled.Setup.Linux;
 internal static class ProductInfo
 {
     public const string Name = "WiiCompiled";
-    public const string Version = "0.2.27";
+    public const string Version = "0.2.28";
 }
 
 /// <summary>One installed product's record inside install-state.json.</summary>

Launcher/WiiCompiled.Setup.Linux/WiiCompiled.Setup.Linux.csproj

@@ -6,7 +6,7 @@
     <Nullable>enable</Nullable>
     <AssemblyName>WiiCompiled.Setup.Linux</AssemblyName>
     <RootNamespace>WiiCompiled.Setup.Linux</RootNamespace>
-    <Version>0.2.22</Version>
+    <Version>0.2.28</Version>
     <Authors>patchzy</Authors>
     <Product>WiiCompiled</Product>
     <Description>Command-line installer and launcher for WiiCompiled on Linux</Description>

Launcher/WiiCompiled.Setup.Windows/Program.cs

@@ -121,7 +121,7 @@ internal static class PlatformChecks
 internal static class ProductInfo
 {
     public const string Name = "WiiCompiled";
-    public const string Version = "0.2.27";
+    public const string Version = "0.2.28";
 
     /// <summary>
     /// The setup executable is copied into the installation under this name. It is the launcher and

Launcher/WiiCompiled.Setup.Windows/WiiCompiled.Setup.Windows.csproj

@@ -7,7 +7,7 @@
     <AssemblyName>WiiCompiled.Setup</AssemblyName>
     <RootNamespace>WiiCompiled.Setup.Windows</RootNamespace>
     <ApplicationManifest>app.manifest</ApplicationManifest>
-    <Version>0.2.27</Version>
+    <Version>0.2.28</Version>
     <Authors>patchzy</Authors>
     <Product>WiiCompiled</Product>
     <Description>Command-line installer and launcher for WiiCompiled</Description>

Launcher/prepare-portable-tools.sh

@@ -25,7 +25,7 @@ set -euo pipefail
 script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
 workspace=$(cd "$script_dir/.." && pwd)
 
-llvm_version=23.1.0
+llvm_version=22.1.8
 cmake_version=4.3.3
 ninja_version=1.13.2
 destination="$script_dir/artifacts/portable-tools"
@@ -52,13 +52,13 @@ done
 
 case "$arch" in
     x86_64) llvm_release_arch=X64; target_triple=x86_64-unknown-linux-gnu
-            llvm_release_sha256=18da30f77f475688a18f7704d23f9f155ae007ed9922dbed6850a9419d9fec8c
+            llvm_release_sha256=df0e1ecf16caf3489a272a5eea4eec9b0d82878f6477fa309504f918a0006384
             cmake_release_arch=x86_64
             cmake_sha256=927b2368a946c37269c3a66225ab00544e756459cdd0b5d0da438694fb9ff802
             ninja_asset=ninja-linux.zip
             ninja_sha256=5749cbc4e668273514150a80e387a957f933c6ed3f5f11e03fb30955e2bbead6 ;;
     aarch64) llvm_release_arch=ARM64; target_triple=aarch64-unknown-linux-gnu
-            llvm_release_sha256=cfb31bfc713ef453248bf5bd026312f838ad6c52c25623e987cb6a340f3050d4
+            llvm_release_sha256=805efad2bb91cb4967fa569e0881d10c0f69c04461cf671cccbae19f547acc34
             cmake_release_arch=aarch64
             cmake_sha256=9ea38356dbd3e32e51029a3e09a0f2f8e117ef4fbcaad7a21ffb36409bbd5cb4
             ninja_asset=ninja-linux-aarch64.zip
@@ -120,9 +120,9 @@ echo "prepare-portable-tools.sh: pruning to the minimal compile+link toolchain..
 
 # clang: the real driver executable plus the clang/clang++ symlinks CMake/local-build.sh invoke.
 # Stripped: debug symbols are dead weight for a bundled compiler nobody will debug.
-cp -a "$src/bin/clang-23" "$work/bin/"
-strip "$work/bin/clang-23"
-ln -s clang-23 "$work/bin/clang"
+cp -a "$src/bin/clang-22" "$work/bin/"
+strip "$work/bin/clang-22"
+ln -s clang-22 "$work/bin/clang"
 ln -s clang "$work/bin/clang++"
 
 # lld: linked via -fuse-ld=lld, which clang resolves by looking for ld.lld next to itself first -

aurora-main/lib/input.cpp

@@ -401,6 +401,8 @@ SDL_JoystickID add_controller(SDL_JoystickID which) noexcept {
       return -1;
     }
     controller.m_isGameCube = controller.m_vid == 0x057E && controller.m_pid == 0x0337;
+    const char* serial = SDL_GetGamepadSerial(ctrl);
+    controller.m_gameCubeUseOrdinaryStop = controller.m_isGameCube && serial && "GCP+"sv == serial;
     if (controller.m_isGameCube ||
         (SDL_GetGamepadType(ctrl) == SDL_GAMEPAD_TYPE_NINTENDO_SWITCH_PRO && controller.m_pid == 0x2073)) {
       controller.m_deadZones.emulateTriggers = false;
@@ -481,6 +483,13 @@ bool controller_has_rumble(Uint32 instance) noexcept {
 void controller_rumble(uint32_t instance, uint16_t low_freq_intensity, uint16_t high_freq_intensity,
                        uint16_t duration_ms) noexcept {
   if (auto it = g_GameControllers.find(instance); it != g_GameControllers.end()) {
+    // GC Pocket+ has been observed continuing to vibrate after a hard stop;
+    // an ordinary stop cleared it. With GAMECUBE_RUMBLE_BRAKE enabled, SDL
+    // encodes (0, 1) as adapter command 0, whereas (0, 0) sends command 2.
+    // Apply the workaround here so shutdown uses the same stop as PAD calls.
+    if (it->second.m_gameCubeUseOrdinaryStop && low_freq_intensity == 0 && high_freq_intensity == 0) {
+      high_freq_intensity = 1;
+    }
     SDL_RumbleGamepad(it->second.m_controller, low_freq_intensity, high_freq_intensity, duration_ms);
   }
 }

aurora-main/lib/input.hpp

@@ -17,6 +17,7 @@ extern Module Log;
 struct GameController {
   SDL_Gamepad* m_controller = nullptr;
   bool m_isGameCube = false;
+  bool m_gameCubeUseOrdinaryStop = false;
   Sint32 m_index = -1;
   Sint32 m_playerIndex = -1;
   bool m_hasRumble = false;

runtime/CMakeLists.txt

@@ -277,6 +277,11 @@ target_link_libraries(mkw_platform_paths_tests PRIVATE mkw_platform)
 target_compile_features(mkw_platform_paths_tests PRIVATE cxx_std_17)
 add_test(NAME mkw_platform_paths_tests COMMAND mkw_platform_paths_tests)
 
+add_executable(mkw_nand_settings_tests "${CMAKE_CURRENT_LIST_DIR}/tests/nand_settings_tests.cpp")
+target_include_directories(mkw_nand_settings_tests PRIVATE "${CMAKE_CURRENT_LIST_DIR}/include")
+target_compile_features(mkw_nand_settings_tests PRIVATE cxx_std_17)
+add_test(NAME mkw_nand_settings_tests COMMAND mkw_nand_settings_tests)
+
 # The input expression engine is self-contained, so it can be exercised without
 # linking the runtime or SDL.
 add_executable(mkw_input_expr_tests

runtime/include/console_identity.h

@@ -1,38 +1,28 @@
 #pragma once
 
-#include "runtime_config.h"
+#include "nand_path.h"
+#include "nand_settings.h"
 
-#include <algorithm>
 #include <array>
-#include <cctype>
 #include <cstddef>
 #include <cstdint>
-#include <filesystem>
-#include <fstream>
 #include <iomanip>
-#include <optional>
-#include <random>
 #include <sstream>
 #include <string>
-#include <string_view>
 #include <utility>
 
 namespace RuntimeConsoleIdentity {
 
 struct Identity {
     std::string serial;
+    std::string productCode;
+    std::string area;
+    std::string gameRegion;
     std::array<uint8_t, 6> mac;
 };
 
-inline bool IsValidSerial(const std::string& serial) {
-    return serial.size() == 9 &&
-           serial != "000000000" &&
-           std::all_of(serial.begin(), serial.end(),
-                       [](unsigned char value) { return std::isdigit(value) != 0; });
-}
-
 inline Identity FromSerial(std::string serial) {
-    // Keep Nintendo's Wii OUI. The suffix is derived from the persisted serial
+    // Keep Nintendo's Wii OUI. The suffix is derived from the NAND serial
     // so every API exposes one coherent, stable virtual-console identity.
     uint32_t hash = 2166136261u;
     for (const unsigned char value : serial) {
@@ -46,6 +36,7 @@ inline Identity FromSerial(std::string serial) {
 
     return {
         std::move(serial),
+        {}, {}, {},
         {
             0x00,
             0x09,
@@ -57,83 +48,23 @@ inline Identity FromSerial(std::string serial) {
     };
 }
 
-inline std::optional<std::string> ReadSerial(const std::filesystem::path& path) {
-    std::ifstream input(path);
-    std::string line;
-    if (!input || !std::getline(input, line)) {
-        return std::nullopt;
+inline Identity LoadFromNand() {
+    const auto root = RuntimeNandPath::DiscoverNandRootPath();
+    const auto settings = RuntimeNandSettings::Read(root);
+    if (!settings || !RuntimeNandSettings::HasIdentity(*settings)) {
+        RuntimeNandPath::FailNandRoot(
+            "NAND setting.txt is missing or has invalid console identity fields (SERNO, CODE, AREA, GAME)",
+            root / "title/00000001/00000002/data/setting.txt");
     }
-    constexpr std::string_view prefix = "serial=";
-    if (line.rfind(prefix, 0) != 0) {
-        return std::nullopt;
-    }
-    std::string serial = line.substr(prefix.size());
-    if (!IsValidSerial(serial)) {
-        return std::nullopt;
-    }
-    return serial;
-}
-
-inline bool WriteSerial(const std::filesystem::path& path, const std::string& serial) {
-    std::error_code ec;
-    std::filesystem::create_directories(path.parent_path(), ec);
-    if (ec) {
-        return false;
-    }
-
-    std::filesystem::path temporary = path;
-    temporary += ".tmp";
-    {
-        std::ofstream output(temporary, std::ios::trunc);
-        if (!output) {
-            return false;
-        }
-        output << "serial=" << serial << '\n';
-        output.close();
-        if (!output) {
-            return false;
-        }
-    }
-
-    std::filesystem::rename(temporary, path, ec);
-    if (!ec) {
-        return true;
-    }
-    std::filesystem::remove(temporary, ec);
-    return false;
-}
-
-inline std::string GenerateSerial() {
-    std::random_device entropy;
-    std::seed_seq seed{
-        entropy(),
-        entropy(),
-        entropy(),
-        entropy(),
-    };
-    std::mt19937 generator(seed);
-    std::uniform_int_distribution<uint32_t> distribution(100000000u, 999999999u);
-    return std::to_string(distribution(generator));
-}
-
-inline Identity LoadOrCreate(const std::filesystem::path& path) {
-    if (const auto serial = ReadSerial(path)) {
-        return FromSerial(*serial);
-    }
-
-    const std::string generated = GenerateSerial();
-    if (WriteSerial(path, generated)) {
-        return FromSerial(generated);
-    }
-
-    // Remain operational in a read-only environment. This fallback matches
-    // Dolphin's deterministic serial while keeping the same valid identity shape.
-    return FromSerial("123456789");
+    Identity identity = FromSerial(settings->at("SERNO"));
+    identity.productCode = settings->at("CODE");
+    identity.area = settings->at("AREA");
+    identity.gameRegion = settings->at("GAME");
+    return identity;
 }
 
 inline const Identity& Current() {
-    static const Identity identity =
-        LoadOrCreate(RuntimeConfigFile::ApplicationDataDirectory() / "ConsoleIdentity.txt");
+    static const Identity identity = LoadFromNand();
     return identity;
 }
 

runtime/include/nand_settings.h

@@ -0,0 +1,69 @@
+#pragma once
+
+#include <array>
+#include <cstdint>
+#include <filesystem>
+#include <fstream>
+#include <map>
+#include <optional>
+#include <string>
+#include <utility>
+
+namespace RuntimeNandSettings {
+
+using Settings = std::map<std::string, std::string>;
+
+// Wii setting.txt is a 256-byte buffer encrypted with a rotating XOR key.
+inline std::optional<Settings> Read(const std::filesystem::path& nandRoot) {
+    std::ifstream input(nandRoot / "title/00000001/00000002/data/setting.txt",
+                        std::ios::binary);
+    std::array<uint8_t, 256> bytes{};
+    if (!input.read(reinterpret_cast<char*>(bytes.data()), bytes.size())) {
+        return std::nullopt;
+    }
+    uint32_t key = 0x73B5DBFAu;
+    std::string decoded;
+    for (const uint8_t byte : bytes) {
+        const char value = static_cast<char>(byte ^ static_cast<uint8_t>(key));
+        key = (key << 1) | (key >> 31);
+        if (value == '\0') {
+            break;
+        }
+        if (value != '\r') {
+            decoded += value;
+        }
+    }
+    Settings settings;
+    for (size_t start = 0; start < decoded.size();) {
+        const size_t end = decoded.find('\n', start);
+        const std::string line = decoded.substr(start, end - start);
+        const size_t equals = line.find('=');
+        if (equals != std::string::npos && equals != 0) {
+            settings.emplace(line.substr(0, equals), line.substr(equals + 1));
+        }
+        if (end == std::string::npos) {
+            break;
+        }
+        start = end + 1;
+    }
+    return settings;
+}
+
+inline bool HasIdentity(const Settings& settings) {
+    const auto serial = settings.find("SERNO");
+    if (serial == settings.end() || serial->second.empty() || serial->second.size() > 9 ||
+        serial->second.find_first_not_of("0123456789") != std::string::npos ||
+        serial->second.find_first_not_of('0') == std::string::npos) {
+        return false;
+    }
+    for (const auto& field : {std::pair{"CODE", 5u}, {"AREA", 3u}, {"GAME", 2u}}) {
+        const auto value = settings.find(field.first);
+        if (value == settings.end() || value->second.empty() ||
+            value->second.size() > field.second) {
+            return false;
+        }
+    }
+    return true;
+}
+
+} // namespace RuntimeNandSettings

runtime/src/fiber_manager.cpp

@@ -256,8 +256,12 @@ bool GuestFiberManager::CreateGuestFiber(uint32_t guestThreadAddr, uint32_t entr
     gf.cpuContext.srr0 = entryPoint;
     
     // The host stack models only translated host calls; the guest stack starts
-    // at stackBase in the CPU context above.
-    constexpr size_t kHostStackSize = 64 * 1024;
+    // at stackBase in the CPU context above. 64 KiB is too small for deep
+    // translated/HLE call chains (notably NW4R's sound worker), and on macOS
+    // it can exhaust the guarded coroutine stack as unrelated host work (such
+    // as a window resize) adds a little more nesting. Keep enough headroom for
+    // those chains while the guest stack remains separately bounded.
+    constexpr size_t kHostStackSize = 1024 * 1024;
     gf.fiber = HostContext::Create(kHostStackSize, FiberProc,
                                    reinterpret_cast<void*>(static_cast<uintptr_t>(guestThreadAddr)));
     

runtime/src/hle/net/network_socket.cpp

@@ -499,7 +499,7 @@ int32_t HandleIpTopIoctlv(uint32_t cmd, const std::vector<IoVector>& in, const s
         // Nonblocking sockets get -SO_EAGAIN immediately (Dolphin's retry predicate
         // short-circuits on nonBlock/forceNonBlock, IOS/Network/Socket.cpp:715-718);
         // waiting here anyway stalled the whole emulation thread on every empty read.
-        constexpr int kStreamRecvWaitMs = 250;
+        constexpr int kStreamRecvWaitMs = 1000;
         const int streamWaitMs = (forceNonBlock || s->nonblocking) ? 0 : kStreamRecvWaitMs;
         const bool waited = ret < 0 && !fromPtr && s->type == SOCK_STREAM &&
             IsWouldBlockError(nativeErr) && WaitForReadable(s->native, streamWaitMs);

runtime/src/hle/sc.cpp

@@ -12,7 +12,25 @@
 
 namespace {
 
-constexpr uint32_t kPalProductRegion = 2;
+// Use the SDK's own value tables, including its unknown-region result.
+uint32_t LookupProductRegion(uint32_t table, uint32_t stride, uint32_t count,
+                             const std::string& value) {
+    for (uint32_t index = 0; index < count; ++index) {
+        const uint32_t entry = table + index * stride;
+        if (!Memory::Contains(entry, stride)) {
+            break;
+        }
+        const auto* bytes = static_cast<const uint8_t*>(Memory::GetPointer(entry, stride));
+        if (bytes[0] == 0xFF) {
+            break;
+        }
+        if (value.size() < stride - 1 &&
+            std::memcmp(bytes + 1, value.c_str(), value.size() + 1) == 0) {
+            return bytes[0];
+        }
+    }
+    return 0xFFFFFFFFu;
+}
 
 } // namespace
 
@@ -50,16 +68,12 @@ extern "C" uint32_t SCGetEuRgb60Mode_HLE()
 
 PPC_NATIVE_OVERRIDE(801B1CAC, SCGetEuRgb60Mode_HLE, uint32_t, (), ());
 
-// The managed NAND intentionally starts without a console-owned setting.txt.
-// DWC nevertheless requires the Wii product code and serial number so it can
-// include csnum in NAS authentication. Expose one stable virtual-console
-// identity without requiring or mutating a user's real NAND.
+// Expose the selected emulated NAND identity through the SDK SC APIs.
 
 extern "C" uint32_t SCGetProductArea_HLE()
 {
-    // The PAL setting.txt AREA value is "EUR". The SDK's lookup table at
-    // 0x8029CEB0 maps JPN=0, USA=1, EUR=2.
-    return kPalProductRegion;
+    return LookupProductRegion(0x8029CEB0u, 5, 13,
+                               RuntimeConsoleIdentity::Current().area);
 }
 
 PPC_NATIVE_OVERRIDE(801B23A0, SCGetProductArea_HLE, uint32_t, (), ());
@@ -68,12 +82,13 @@ extern "C" uint32_t SCGetProductCode_HLE()
 {
     // Original PAL SC storage for the six-byte CODE value.
     constexpr uint32_t kProductCodeAddress = 0x803869E0u;
-    static constexpr char kProductCode[] = "LEH";
-    if (!Memory::Contains(kProductCodeAddress, sizeof(kProductCode))) {
+    const std::string& productCode = RuntimeConsoleIdentity::Current().productCode;
+    const size_t size = productCode.size() + 1;
+    if (!Memory::Contains(kProductCodeAddress, size)) {
         return 0;
     }
-    std::memcpy(Memory::GetPointer(kProductCodeAddress, sizeof(kProductCode)),
-                kProductCode, sizeof(kProductCode));
+    std::memcpy(Memory::GetPointer(kProductCodeAddress, size),
+                productCode.c_str(), size);
     return kProductCodeAddress;
 }
 
@@ -94,9 +109,8 @@ PPC_NATIVE_OVERRIDE(801B2460, SCGetProductSN_HLE, uint32_t, (uint32_t serialAddr
 
 extern "C" uint32_t SCGetProductGameRegion_HLE()
 {
-    // The PAL setting.txt GAME value is "EU". The SDK's own lookup table at
-    // 0x8029CEF8 maps JP=0, US=1, EU=2.
-    return kPalProductRegion;
+    return LookupProductRegion(0x8029CEF8u, 4, 4,
+                               RuntimeConsoleIdentity::Current().gameRegion);
 }
 
 PPC_NATIVE_OVERRIDE(801B24C8, SCGetProductGameRegion_HLE, uint32_t, (), ());

runtime/src/settings_overlay.cpp

@@ -483,11 +483,6 @@ void DrawRumbleSettings() {
                 PAD_MOTOR_STOP_HARD, PAD_MOTOR_STOP_HARD, PAD_MOTOR_STOP_HARD, PAD_MOTOR_STOP_HARD,
             };
             PADControlAllMotors(stopAll.data());
-#if defined(_WIN32)
-            for (uint32_t port = 0; port < PAD_MAX_CONTROLLERS; ++port) {
-                Wup028Adapter::SetRumble(port, false);
-            }
-#endif
         }
     }
     if (ImGui::IsItemHovered()) {

runtime/tests/nand_settings_tests.cpp

@@ -0,0 +1,65 @@
+#include "nand_settings.h"
+
+#include <chrono>
+#include <iostream>
+#include <stdexcept>
+
+static void Require(bool condition) {
+    if (!condition) {
+        throw std::runtime_error("NAND settings check failed");
+    }
+}
+
+int main() {
+    const auto root = std::filesystem::temp_directory_path() /
+        ("wiicomp-nand-settings-" + std::to_string(
+            std::chrono::steady_clock::now().time_since_epoch().count()));
+    const auto path = root / "title/00000001/00000002/data/setting.txt";
+    try {
+        Require(!RuntimeNandSettings::Read(root));
+        Require(!std::filesystem::exists(root));
+        std::filesystem::create_directories(path.parent_path());
+        const std::string plain = "AREA=USA\r\n\nCODE=LU\r\nSERNO=987654321\r\nGAME=US\r\n";
+        std::array<uint8_t, 256> fixture{};
+        for (size_t i = 0; i < fixture.size(); ++i) {
+            const unsigned shift = i % 32;
+            const uint32_t key = shift == 0 ? 0x73B5DBFAu :
+                (0x73B5DBFAu << shift) | (0x73B5DBFAu >> (32 - shift));
+            fixture[i] = static_cast<uint8_t>(key) ^ (i < plain.size() ? plain[i] : 0);
+        }
+        {
+            std::ofstream output(path, std::ios::binary);
+            output.write(reinterpret_cast<const char*>(fixture.data()), fixture.size());
+        }
+        auto settings = RuntimeNandSettings::Read(root);
+        Require(settings && RuntimeNandSettings::HasIdentity(*settings));
+        Require(settings->at("SERNO") == "987654321" && settings->at("CODE") == "LU");
+        Require(settings->at("AREA") == "USA" && settings->at("GAME") == "US");
+        std::array<uint8_t, 256> after{};
+        {
+            std::ifstream input(path, std::ios::binary);
+            input.read(reinterpret_cast<char*>(after.data()), after.size());
+        }
+        Require(after == fixture);
+        for (const auto serial : {"", "000000000", "1234567890", "123ABC789"}) {
+            (*settings)["SERNO"] = serial;
+            Require(!RuntimeNandSettings::HasIdentity(*settings));
+        }
+        (*settings)["SERNO"] = "012345678";
+        Require(RuntimeNandSettings::HasIdentity(*settings));
+        (*settings)["CODE"] = "TOOLONG";
+        Require(!RuntimeNandSettings::HasIdentity(*settings));
+        (*settings)["CODE"] = "LEH";
+        settings->erase("GAME");
+        Require(!RuntimeNandSettings::HasIdentity(*settings));
+        std::filesystem::resize_file(path, 128);
+        Require(!RuntimeNandSettings::Read(root));
+        std::filesystem::remove_all(root);
+        std::cout << "NAND settings checks passed\n";
+        return 0;
+    } catch (const std::exception& error) {
+        std::filesystem::remove_all(root);
+        std::cerr << error.what() << '\n';
+        return 1;
+    }
+}