fix issue with emux_xdetect

Update to rust 1.93.0 (#659 )
flush saves to disk (#658 )
2026-07-11 09:35:21 +02:00 · 2026-01-22 20:44:17 +01:00 · 2026-01-22 20:24:41 +01:00 · 2026-01-22 20:09:13 +01:00 · 2026-01-22 09:22:47 +01:00 · 2026-01-21 19:01:50 +01:00
90 changed files with 5676 additions and 12942 deletions
@@ -1,5 +1,16 @@
+[target.'cfg(all(target_arch = "aarch64", target_os = "linux"))']
+rustflags = ["-C", "link-arg=-fuse-ld=lld"]
+
+[target.'cfg(target_os = "windows")']
+linker = "rust-lld"
+
 [target.'cfg(target_arch = "x86_64")']
 rustflags = ["-C", "target-cpu=x86-64-v3"]

 [target.'cfg(target_arch = "aarch64")']
 rustflags = ["-C", "target-cpu=cortex-a76"]
+
+[env]
+CC = "clang"
+CXX = "clang++"
+AR = "llvm-ar"
@@ -3,8 +3,12 @@ updates:
  - package-ecosystem: "github-actions"
    directory: "/"
    schedule:
-      interval: "daily"
-  - package-ecosystem: "cargo"
+      interval: "weekly"
+  - package-ecosystem: "rust-toolchain"
    directory: "/"
    schedule:
-      interval: "daily"
+      interval: "weekly"
+# - package-ecosystem: "cargo"
+#   directory: "/"
+#   schedule:
+#     interval: "daily"
@@ -5,6 +5,8 @@ permissions:
 on:
  push:
    branches: ["main"]
+    tags:
+      - "v*"
  pull_request:
    branches: ["main"]

@@ -21,17 +23,21 @@ jobs:
          - os: ubuntu-24.04
            target: x86_64-unknown-linux-gnu
            arch: linux-x86_64
+            llvm: X64
          - os: ubuntu-24.04-arm
            target: aarch64-unknown-linux-gnu
            arch: linux-aarch64
+            llvm: ARM64
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
        with:
          submodules: recursive
      - uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          target: ${{ matrix.target }}
          rustflags: ""
+      - name: Set LLVM_VERSION
+        run: echo "LLVM_VERSION=$(rustc --version --verbose | grep "LLVM version" | cut -d':' -f2 | xargs)" >> $GITHUB_ENV
      - name: Install SDL Dependencies
        # https://wiki.libsdl.org/SDL3/README-linux#build-dependencies
        uses: awalsh128/cache-apt-pkgs-action@v1
@@ -42,15 +48,22 @@ jobs:
            libxrandr-dev libxcursor-dev libxfixes-dev libxi-dev libxss-dev libxtst-dev \
            libxkbcommon-dev libdrm-dev libgbm-dev libgl1-mesa-dev libgles2-mesa-dev \
            libegl1-mesa-dev libdbus-1-dev libibus-1.0-dev libudev-dev fcitx-libs-dev \
-            libpipewire-0.3-dev libwayland-dev libdecor-0-dev liburing-dev
+            libpipewire-0.3-dev libwayland-dev libdecor-0-dev liburing-dev libfreetype-dev libfontconfig-dev
          version: ${{ matrix.target }}-1.0
+      - name: Install LLVM and Clang
+        uses: KyleMayes/install-llvm-action@v2
+        with:
+          version: ${{ env.LLVM_VERSION }}
+          force-url: https://github.com/llvm/llvm-project/releases/download/llvmorg-${{ env.LLVM_VERSION }}/LLVM-${{ env.LLVM_VERSION }}-Linux-${{ matrix.llvm }}.tar.xz
      - name: Build
        run: |
          cargo build --release -v --target=${{ matrix.target }}
          mkdir output
          cp target/${{ matrix.target }}/release/gopher64 output/gopher64-${{ matrix.arch }}
+        env:
+          NETPLAY_ID: ${{ secrets.NETPLAY_ID }}
      - name: Upload file
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
        with:
          name: gopher64-${{ matrix.arch }}
          path: output/gopher64-${{ matrix.arch }}
@@ -64,29 +77,57 @@ jobs:
          - os: windows-2025
            target: x86_64-pc-windows-msvc
            arch: windows-x86_64
+            llvm: win64
          #- os: windows-11-arm
          #  target: aarch64-pc-windows-msvc
          #  arch: windows-aarch64
+          #  llvm: woa64
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
        with:
          submodules: recursive
      - uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          target: ${{ matrix.target }}
          rustflags: ""
+      - name: Set LLVM_VERSION
+        run: |
+          $llvm_version = rustc --version --verbose | Select-String "LLVM version" | ForEach-Object { $_.Line.Split(":")[1].Trim() }
+          echo "LLVM_VERSION=$llvm_version" >> $env:GITHUB_ENV
+      - name: Install LLVM and Clang
+        uses: KyleMayes/install-llvm-action@v2
+        with:
+          version: ${{ env.LLVM_VERSION }}
+          force-url: https://github.com/llvm/llvm-project/releases/download/llvmorg-${{ env.LLVM_VERSION }}/LLVM-${{ env.LLVM_VERSION }}-${{ matrix.llvm }}.exe
      - name: Build
        run: |
          cargo build --release -v --target=${{ matrix.target }}
          mkdir output
          cp target/${{ matrix.target }}/release/gopher64.exe output/gopher64-${{ matrix.arch }}.exe
-      - name: Upload file
-        uses: actions/upload-artifact@v4
+        env:
+          CC: clang-cl
+          CXX: clang-cl
+          NETPLAY_ID: ${{ secrets.NETPLAY_ID }}
+      - name: Upload unsigned artifact
+        id: upload-unsigned-artifact
+        uses: actions/upload-artifact@v6
        with:
          name: gopher64-${{ matrix.arch }}
          path: output/gopher64-${{ matrix.arch }}.exe
+      - name: SignPath
+        if: ${{ github.ref_type == 'tag' }}
+        uses: signpath/github-action-submit-signing-request@v2.0
+        with:
+          api-token: "${{ secrets.SIGNPATH_API_TOKEN }}"
+          organization-id: "${{ secrets.SIGNPATH_ORG_ID }}"
+          project-slug: "gopher64"
+          artifact-configuration-slug: "gopher64-${{ matrix.arch }}"
+          signing-policy-slug: "release-signing"
+          github-artifact-id: "${{ steps.upload-unsigned-artifact.outputs.artifact-id }}"
+          wait-for-completion: false

  build-macos:
+    if: false
    runs-on: macos-15
    strategy:
      fail-fast: false
@@ -97,7 +138,7 @@ jobs:
          - target: aarch64-apple-darwin
            arch: mac-aarch64
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
        with:
          submodules: recursive
      - uses: actions-rust-lang/setup-rust-toolchain@v1
@@ -109,8 +150,11 @@ jobs:
          cargo build --release -v --target=${{ matrix.target }}
          mkdir output
          cp target/${{ matrix.target }}/release/gopher64 output/gopher64-${{ matrix.arch }}
+        env:
+          AR: ar
+          NETPLAY_ID: ${{ secrets.NETPLAY_ID }}
      - name: Upload file
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
        with:
          name: gopher64-${{ matrix.arch }}
          path: output/gopher64-${{ matrix.arch }}
@@ -16,12 +16,14 @@ jobs:
  lint-linux:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
        with:
          submodules: recursive
      - uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          components: clippy, rustfmt
+      - name: Set LLVM_VERSION
+        run: echo "LLVM_VERSION=$(rustc --version --verbose | grep "LLVM version" | cut -d':' -f2 | xargs)" >> $GITHUB_ENV
      - name: Install SDL Dependencies
        # https://wiki.libsdl.org/SDL3/README-linux#build-dependencies
        uses: awalsh128/cache-apt-pkgs-action@v1
@@ -32,8 +34,13 @@ jobs:
            libxrandr-dev libxcursor-dev libxfixes-dev libxi-dev libxss-dev libxtst-dev \
            libxkbcommon-dev libdrm-dev libgbm-dev libgl1-mesa-dev libgles2-mesa-dev \
            libegl1-mesa-dev libdbus-1-dev libibus-1.0-dev libudev-dev fcitx-libs-dev \
-            libpipewire-0.3-dev libwayland-dev libdecor-0-dev liburing-dev
+            libpipewire-0.3-dev libwayland-dev libdecor-0-dev liburing-dev libfreetype-dev libfontconfig-dev
          version: lint-1.0
+      - name: Install LLVM and Clang
+        uses: KyleMayes/install-llvm-action@v2
+        with:
+          version: ${{ env.LLVM_VERSION }}
+          force-url: https://github.com/llvm/llvm-project/releases/download/llvmorg-${{ env.LLVM_VERSION }}/LLVM-${{ env.LLVM_VERSION }}-Linux-X64.tar.xz
      - name: Rustfmt Check
        uses: actions-rust-lang/rustfmt@v1
      - name: Lint
@@ -10,7 +10,7 @@ jobs:
      checks: write
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
        with:
          submodules: recursive
      - uses: rustsec/audit-check@v2
@@ -1,3 +1,7 @@
 [submodule "parallel-rdp/parallel-rdp-standalone"]
 	path = parallel-rdp/parallel-rdp-standalone
-	url = https://github.com/Themaister/parallel-rdp-standalone.git
+	url = https://github.com/gopher64/parallel-rdp-standalone.git
+	branch = gopher64
+[submodule "src/compat/sse2neon"]
+	path = src/compat/sse2neon
+	url = https://github.com/DLTcollab/sse2neon.git
@@ -1,40 +1,40 @@
 [package]
 name = "gopher64"
-version = "1.0.18"
+version = "1.1.12"
 edition = "2024"
-rust-version = "1.88"
+rust-version = "1.93.0"

 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

 [dependencies]
 dirs = "6.0"
-zip = "4.2"
+zip = "7.0"
 governor = "0.10"
-sevenz-rust2 = { version = "0.15", default-features = false }
+sevenz-rust2 = { version = "0.20", default-features = false }
 chrono = "0.4"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 serde-big-array = "0.5"
-slint = { version = "1.12", default-features = false, features = ["compat-1-2", "std", "backend-winit", "renderer-femtovg-wgpu"] }
+slint = { version = "1.12", default-features = false, features = ["compat-1-2", "std", "backend-winit", "renderer-skia-vulkan"] }
 open = "5.3"
 sha2 = "0.10"
-ab_glyph = "0.2"
-sdl3-sys = { version = "0.5", features = ["build-from-source-static"] }
-rfd = { version = "0.15", default-features = false, features = ["xdg-portal", "tokio"] }
-tokio = {version = "1.45", features = ["rt-multi-thread", "macros"] }
+sdl3-sys = { version = "0.6", features = ["build-from-source-static"] }
+sdl3-ttf-sys = { version = "0.6", features = ["build-from-source-static", "no-sdlttf-harfbuzz", "no-sdlttf-plutosvg"] }
+rfd = "0.17"
+tokio = {version = "1.46", features = ["rt-multi-thread", "macros", "fs"] }
 spin_sleep = "1.3"
 encoding_rs = "0.8"
 mimalloc = "0.1"
 regex = "1.11"
-tokio-tungstenite = "0.27"
+tokio-tungstenite = "0.28"
 futures = "0.3"
-socket2 = "0.5"
+socket2 = { version = "0.6", features = ["all"] }
 rand_chacha = "0.9"
 fatfs = "0.3"
 semver = "1.0"
 postcard = { version = "1.1", features = ["use-std"] }
 clap = { version = "4.5", features = ["derive"] }
-reqwest = { version = "0.12", default-features = false, features = ["http2","rustls-tls","charset","json"] }
+reqwest = { version = "0.13", default-features = false, features = ["http2","rustls","charset","json","query"] }

 [build-dependencies]
 winresource = "0.1"
@@ -43,6 +43,12 @@ slint-build = "1.12"
 cc = { version = "1.2", features = ["parallel"] }

 [profile.release]
-codegen-units = 1
-strip = true
 panic = "abort"
+lto = "thin"
+strip = true
+
+[profile.release-with-debug]
+inherits = "release"
+debug = true
+strip = false
+panic = "unwind"
@@ -1,7 +1,9 @@
 # gopher64
 ## download

-https://github.com/gopher64/gopher64/releases
+Windows: https://github.com/gopher64/gopher64/releases/latest/download/gopher64-windows-x86_64.exe
+
+Linux: https://flathub.org/apps/io.github.gopher64.gopher64

 ## wiki

@@ -15,13 +17,9 @@ https://discord.gg/9RGXq8W8JQ

 Keys are mapped according to [these defaults](https://github.com/gopher64/gopher64/wiki/Default-Keyboard-Setup). Xbox-style controllers also have a [default mapping applied](https://github.com/gopher64/gopher64/wiki/Default-Gamepad-Setup).

-You can create your mappings by running `./gopher64 --configure-input-profile my_profile`. You then bind that profile to a port: `./gopher64 --bind-input-profile my_profile --port 1`
-
-To use a controller (for example, an Xbox controller), run `./gopher64 --list-controllers` to get a list of attached controllers, and then assign it by doing `./gopher64 --assign-controller <controller_number> --port 1`
-
 ## netplay

-Gopher64 supports netplay (online play with others). It has a few public netplay servers. If you are interested in running a public netplay server, please let me know (open an issue or discussion or contact me on Discord). You can also run the server (https://github.com/gopher64/gopher64-netplay-server) yourself on a LAN.
+Gopher64 supports netplay (online play with others) via cloud hosted servers. You can also run the server (https://github.com/gopher64/gopher64-netplay-server) yourself on a LAN.

 ## portable mode

@@ -35,12 +33,6 @@ If you want to run the flatpak from the command line, you need to add the `--fil
 flatpak run --filesystem=host:ro io.github.gopher64.gopher64 /path/to/rom.z64
 ```

-## goals
-
-1. Performance. I want to be able to use this emulator on my laptop.
-2. Easy to use.
-3. Easy to work on. Dynamic recompilers perform well, but they are very hard to read and understand. This emulator will only have interpreters for the CPU and RSP. Additionally, it is completely written in Rust (besides Parallel-RDP), a modern programming language with a growing user base. I've tried to avoid the use of macros, which can reduce some repetitiveness in the code but also reduce readability.
-
 ## building and usage

 1. Linux only: install the SDL3 dependencies: https://wiki.libsdl.org/SDL3/README-linux#build-dependencies
@@ -57,3 +49,9 @@ I am very open to contributions! Please contact me via a GitHub issue or Discord
 ## license

 Gopher64 is licensed under the GPLv3 license. Many portions of gopher64 have been adapted from mupen64plus and/or ares. The license for mupen64plus can be found here: https://github.com/mupen64plus/mupen64plus-core/blob/master/LICENSES. The license for ares can be found here: https://github.com/ares-emulator/ares/blob/master/LICENSE.
+
+## privacy and code signing policy
+
+Free code signing for the Windows release is provided by [SignPath.io](https://about.signpath.io), certificate by [SignPath Foundation](https://signpath.org).
+
+During online netplay sessions, the server logs your IP address and basic session information (game title and session name) for operational purposes. No additional personal data is collected or stored.
@@ -6,11 +6,17 @@ fn main() {
    slint_build::compile_with_config("src/ui/gui/appwindow.slint", slint_config).unwrap();

    let mut simd_build = cc::Build::new();
-    let mut build = cc::Build::new();
-    build
+    let mut volk_build = cc::Build::new();
+    volk_build
+        .std("c17")
+        .include("parallel-rdp/parallel-rdp-standalone/vulkan-headers/include")
+        .file("parallel-rdp/parallel-rdp-standalone/volk/volk.c");
+    let mut rdp_build = cc::Build::new();
+    rdp_build
        .cpp(true)
-        .warnings(false)
-        .std("c++17")
+        .std("c++23")
+        .flag("-Wno-unused-parameter")
+        .flag("-Wno-missing-field-initializers")
        .file("parallel-rdp/parallel-rdp-standalone/parallel-rdp/command_ring.cpp")
        .file("parallel-rdp/parallel-rdp-standalone/parallel-rdp/rdp_device.cpp")
        .file("parallel-rdp/parallel-rdp-standalone/parallel-rdp/rdp_dump_write.cpp")
@@ -30,9 +36,11 @@ fn main() {
        .file("parallel-rdp/parallel-rdp-standalone/vulkan/image.cpp")
        .file("parallel-rdp/parallel-rdp-standalone/vulkan/indirect_layout.cpp")
        .file("parallel-rdp/parallel-rdp-standalone/vulkan/memory_allocator.cpp")
+        .file("parallel-rdp/parallel-rdp-standalone/vulkan/pipeline_cache.cpp")
        .file("parallel-rdp/parallel-rdp-standalone/vulkan/pipeline_event.cpp")
        .file("parallel-rdp/parallel-rdp-standalone/vulkan/query_pool.cpp")
        .file("parallel-rdp/parallel-rdp-standalone/vulkan/render_pass.cpp")
+        .file("parallel-rdp/parallel-rdp-standalone/vulkan/rtas.cpp")
        .file("parallel-rdp/parallel-rdp-standalone/vulkan/sampler.cpp")
        .file("parallel-rdp/parallel-rdp-standalone/vulkan/semaphore.cpp")
        .file("parallel-rdp/parallel-rdp-standalone/vulkan/semaphore_manager.cpp")
@@ -47,7 +55,7 @@ fn main() {
        .file("parallel-rdp/parallel-rdp-standalone/util/timeline_trace_file.cpp")
        .file("parallel-rdp/parallel-rdp-standalone/util/environment.cpp")
        .file("parallel-rdp/parallel-rdp-standalone/util/thread_name.cpp")
-        .file("parallel-rdp/parallel-rdp-standalone/volk/volk.c")
+        .file("parallel-rdp/parallel-rdp-standalone/util/slab_allocator.cpp")
        .file("parallel-rdp/interface.cpp")
        .file("parallel-rdp/wsi_platform.cpp")
        .include("parallel-rdp/parallel-rdp-standalone/parallel-rdp")
@@ -58,47 +66,42 @@ fn main() {
        .include(
            std::path::PathBuf::from(std::env::var("DEP_SDL3_OUT_DIR").to_owned().unwrap())
                .join("include"),
+        )
+        .include(
+            std::path::PathBuf::from(std::env::var("DEP_SDL3_TTF_OUT_DIR").to_owned().unwrap())
+                .join("include"),
        );

    let os = std::env::var("CARGO_CFG_TARGET_OS").unwrap();
    let arch = std::env::var("CARGO_CFG_TARGET_ARCH").unwrap();
-    let env = std::env::var("CARGO_CFG_TARGET_ENV").unwrap();
+    let opt_flag = if arch == "x86_64" {
+        "-march=x86-64-v3"
+    } else if arch == "aarch64" {
+        "-march=armv8.2-a"
+    } else {
+        panic!("unknown arch")
+    };
+
+    volk_build.flag(opt_flag);
+    rdp_build.flag(opt_flag);
+    simd_build.flag(opt_flag);
+
    if os == "windows" {
-        if arch == "x86_64" {
-            if env == "msvc" {
-                build.flag("/arch:AVX2");
-            } else if env == "gnu" {
-                build.flag("-march=x86-64-v3");
-            } else {
-                panic!("unknown env")
-            }
-        } else if arch == "aarch64" {
-            panic!("unsupported platform")
-        } else {
-            panic!("unknown arch")
-        }
-        build.flag("-DVK_USE_PLATFORM_WIN32_KHR");
+        volk_build.flag("-DVK_USE_PLATFORM_WIN32_KHR");
+        rdp_build.flag("-DVK_USE_PLATFORM_WIN32_KHR");

        winresource::WindowsResource::new()
-            .set_icon("data/icon.ico")
+            .set_icon("data/icon/icon.ico")
            .compile()
            .unwrap();
-    } else if os == "linux" || os == "macos" {
-        if arch == "x86_64" {
-            build.flag("-march=x86-64-v3");
-        } else if arch == "aarch64" {
-            build.flag("-march=armv8.2-a");
-            simd_build.flag("-march=armv8.2-a");
-            simd_build.flag("-DSSE2NEON_SUPPRESS_WARNINGS");
-            simd_build.file("src/compat/aarch64.c");
-        } else {
-            panic!("unknown arch")
-        }
-    } else {
-        panic!("unknown OS")
    }

-    build.compile("parallel-rdp");
+    volk_build.flag("-flto=thin");
+    rdp_build.flag("-flto=thin");
+    simd_build.flag("-flto=thin");
+
+    volk_build.compile("volk");
+    rdp_build.compile("parallel-rdp");

    let out_path = std::path::PathBuf::from(std::env::var("OUT_DIR").unwrap());

@@ -108,9 +111,12 @@ fn main() {
        .allowlist_function("rdp_close")
        .allowlist_function("rdp_set_vi_register")
        .allowlist_function("rdp_update_screen")
+        .allowlist_function("rdp_render_frame")
        .allowlist_function("rdp_process_commands")
+        .allowlist_function("rdp_onscreen_message")
        .allowlist_function("rdp_check_callback")
        .allowlist_function("rdp_new_processor")
+        .allowlist_function("rdp_check_framebuffers")
        .allowlist_function("rdp_state_size")
        .allowlist_function("rdp_save_state")
        .allowlist_function("rdp_load_state")
@@ -124,7 +130,7 @@ fn main() {

    if arch == "aarch64" {
        let simd_bindings = bindgen::Builder::default()
-            .header("src/compat/sse2neon/v1.8.0/sse2neon.h")
+            .header("src/compat/sse2neon/sse2neon.h")
            .allowlist_function("_mm_setzero_si128")
            .allowlist_function("_mm_set_epi8")
            .allowlist_function("_mm_movemask_epi8")
@@ -158,6 +164,7 @@ fn main() {
            .allowlist_function("_mm_cmplt_epi16")
            .allowlist_function("_mm_subs_epu16")
            .allowlist_function("_mm_set1_epi32")
+            .allowlist_function("_mm_set1_epi16")
            .blocklist_type("__m128i")
            .blocklist_type("int64x2_t")
            .wrap_static_fns(true)
@@ -169,9 +176,14 @@ fn main() {
            .write_to_file(out_path.join("simd_bindings.rs"))
            .expect("Couldn't write bindings!");

-        simd_build.file(std::env::temp_dir().join("bindgen").join("extern.c"));
-        simd_build.include(".");
-        simd_build.compile("simd");
+        simd_build
+            .std("c17")
+            .flag("-D_POSIX_C_SOURCE=200112L")
+            .flag("-DSSE2NEON_SUPPRESS_WARNINGS")
+            .file("src/compat/aarch64.c")
+            .file(std::env::temp_dir().join("bindgen").join("extern.c"))
+            .include(".")
+            .compile("simd");
    }

    let git_output = std::process::Command::new("git")
@@ -182,5 +194,8 @@ fn main() {
    let git_hash = String::from_utf8(git_output.stdout).unwrap();
    println!("cargo:rustc-env=GIT_HASH={git_hash}");

+    let netplay_id = std::env::var("NETPLAY_ID").unwrap_or("gopher64".to_string());
+    println!("cargo:rustc-env=NETPLAY_ID={netplay_id}");
+
    println!("cargo:rustc-env=N64_STACK_SIZE={}", 8 * 1024 * 1024);
 }
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+magick gopher64.png -resize 512x512 gopher64_512x512.png
+magick gopher64.png -resize 256x256 gopher64_256x256.png
+magick gopher64.png -resize 128x128 gopher64_128x128.png
+magick gopher64.png -resize 256x256 icon.ico
@@ -5,6 +5,7 @@
 #include "spirv.hpp"
 #include "spirv_crt.hpp"
 #include <SDL3/SDL_vulkan.h>
+#include <SDL3_ttf/SDL_ttf.h>

 using namespace Vulkan;

@@ -52,12 +53,27 @@ enum vi_registers
 	VI_REGS_COUNT
 };

+typedef struct
+{
+	uint32_t depthbuffer_address;
+	uint32_t framebuffer_address;
+	uint32_t framebuffer_y_offset;
+	uint32_t texture_address;
+	uint32_t framebuffer_pixel_size;
+	uint32_t framebuffer_width;
+	uint32_t texture_pixel_size;
+	uint32_t texture_width;
+	uint32_t framebuffer_height;
+	bool depth_buffer_enabled;
+} FrameBufferInfo;
+
 typedef struct
 {
 	uint32_t cmd_data[0x00040000 >> 2];
 	int cmd_cur;
 	int cmd_ptr;
 	uint32_t region;
+	FrameBufferInfo frame_buffer_info;
 } RDP_DEVICE;

 static SDL_Window *window;
@@ -72,6 +88,15 @@ static GFX_INFO gfx_info;
 static const uint32_t *fragment_spirv;
 static size_t fragment_size;

+std::vector<bool> rdram_dirty;
+uint64_t sync_signal;
+
+static TTF_Font *message_font;
+static std::queue<std::string> messages;
+static uint64_t message_timer;
+
+#define MESSAGE_TIME 3000 // 3 seconds
+
 typedef struct
 {
 	float SourceSize[4];
@@ -149,6 +174,7 @@ bool sdl_event_filter(void *userdata, SDL_Event *event)
 {
 	if (event->type == SDL_EVENT_WINDOW_CLOSE_REQUESTED)
 	{
+		callback.paused = false;
 		callback.emu_running = false;
 	}
 	else if (event->type == SDL_EVENT_WINDOW_RESIZED && callback.emu_running)
@@ -172,6 +198,12 @@ bool sdl_event_filter(void *userdata, SDL_Event *event)
 				callback.enable_speedlimiter = !callback.enable_speedlimiter;
 			}
 			break;
+		case SDL_SCANCODE_P:
+			if (event->key.mod & SDL_KMOD_ALT)
+			{
+				callback.paused = !callback.paused;
+			}
+			break;
 		case SDL_SCANCODE_ESCAPE:
 			if (gfx_info.fullscreen)
 				callback.emu_running = false;
@@ -191,6 +223,27 @@ bool sdl_event_filter(void *userdata, SDL_Event *event)
 		case SDL_SCANCODE_RIGHTBRACKET:
 			callback.raise_volume = true;
 			break;
+		case SDL_SCANCODE_SLASH:
+			callback.frame_advance = true;
+			break;
+		case SDL_SCANCODE_0:
+		case SDL_SCANCODE_1:
+		case SDL_SCANCODE_2:
+		case SDL_SCANCODE_3:
+		case SDL_SCANCODE_4:
+		case SDL_SCANCODE_5:
+		case SDL_SCANCODE_6:
+		case SDL_SCANCODE_7:
+		case SDL_SCANCODE_8:
+		case SDL_SCANCODE_9:
+			if (event->key.mod & SDL_KMOD_ALT)
+			{
+				if (event->key.scancode == SDL_SCANCODE_0)
+					callback.save_state_slot = 0;
+				else
+					callback.save_state_slot = event->key.scancode - SDL_SCANCODE_1 + 1;
+			}
+			break;
 		default:
 			break;
 		}
@@ -203,6 +256,9 @@ void rdp_new_processor(GFX_INFO _gfx_info)
 {
 	gfx_info = _gfx_info;

+	sync_signal = 0;
+	rdram_dirty.assign(gfx_info.RDRAM_SIZE >> 3, false);
+
 	if (processor)
 	{
 		delete processor;
@@ -219,13 +275,37 @@ void rdp_new_processor(GFX_INFO _gfx_info)
 		flags |= RDP::COMMAND_PROCESSOR_FLAG_SUPER_SAMPLED_DITHER_BIT;
 		flags |= RDP::COMMAND_PROCESSOR_FLAG_UPSCALING_4X_BIT;
 	}
+	else if (gfx_info.upscale == 8)
+	{
+		flags |= RDP::COMMAND_PROCESSOR_FLAG_SUPER_SAMPLED_DITHER_BIT;
+		flags |= RDP::COMMAND_PROCESSOR_FLAG_UPSCALING_8X_BIT;
+	}

 	processor = new RDP::CommandProcessor(wsi->get_device(), gfx_info.RDRAM, 0, gfx_info.RDRAM_SIZE, gfx_info.RDRAM_SIZE / 2, flags);
 }

-void rdp_init(void *_window, GFX_INFO _gfx_info)
+static ImageHandle create_message_image(Vulkan::Device &device, int width, const char *message)
 {
+	SDL_Color fg = {255, 255, 255, 255};
+	SDL_Color bg = {0, 0, 0, 0};
+	SDL_Surface *surface = TTF_RenderText_LCD_Wrapped(message_font, message, 0, fg, bg, width);
+	ImageCreateInfo info = ImageCreateInfo::immutable_2d_image(surface->w, surface->h, VK_FORMAT_B8G8R8A8_UNORM, false);
+	ImageInitialData initial_data = {};
+	initial_data.data = surface->pixels;
+	initial_data.row_length = surface->pitch / 4;
+	initial_data.image_height = surface->h;
+
+	ImageHandle handle = device.create_image(info, &initial_data);
+	SDL_DestroySurface(surface);
+	return handle;
+}
+
+void rdp_init(void *_window, GFX_INFO _gfx_info, const void *font, size_t font_size)
+{
+	memset(&rdp_device, 0, sizeof(RDP_DEVICE));
+
 	window = (SDL_Window *)_window;
+	SDL_SyncWindow(window);
 	bool result = SDL_AddEventWatch(sdl_event_filter, nullptr);
 	if (!result)
 	{
@@ -257,32 +337,51 @@ void rdp_init(void *_window, GFX_INFO _gfx_info)
 	if (!::Vulkan::Context::init_loader((PFN_vkGetInstanceProcAddr)SDL_Vulkan_GetVkGetInstanceProcAddr()))
 	{
 		rdp_close();
+		return;
 	}
 	if (!wsi->init_simple(1, handles))
 	{
 		rdp_close();
+		return;
 	}

 	rdp_new_processor(gfx_info);

 	if (!processor->device_is_supported())
 	{
-		delete processor;
-		delete wsi;
-		processor = nullptr;
 		rdp_close();
+		return;
 	}
+
+	message_font = TTF_OpenFontIO(SDL_IOFromConstMem(font, font_size), true, 30.0);
+	if (!message_font)
+	{
+		rdp_close();
+		return;
+	}
+
 	wsi->begin_frame();

 	callback.emu_running = true;
 	callback.enable_speedlimiter = true;
+	callback.paused = false;
+	callback.save_state_slot = 0;
 	crop_letterbox = false;
+
+	messages = std::queue<std::string>();
+	message_timer = 0;
 }

 void rdp_close()
 {
-	wsi->end_frame();
+	if (wsi)
+		wsi->end_frame();

+	if (message_font)
+	{
+		TTF_CloseFont(message_font);
+		message_font = nullptr;
+	}
 	if (processor)
 	{
 		delete processor;
@@ -412,11 +511,30 @@ static void render_frame(Vulkan::Device &device)
 				cmd->push_constants(&push, 0, sizeof(push));
 			}

-			cmd->set_texture(0, 0, image->get_view(), Vulkan::StockSampler::LinearClamp);
+			cmd->set_texture(0, 0, image->get_view(), Vulkan::StockSampler::NearestClamp);
 			cmd->set_viewport(vp);
 			// The vertices are constants in the shader.
 			// Draws fullscreen quad using oversized triangle.
 			cmd->draw(3);
+
+			if (!messages.empty())
+			{
+				Vulkan::ImageHandle message_image = create_message_image(device, vp.width, messages.front().c_str());
+				cmd->set_texture(0, 0, message_image->get_view(), Vulkan::StockSampler::NearestClamp);
+				vp.x = vp.x + (vp.width - message_image->get_width()) / 2;
+				vp.y = vp.y + vp.height - message_image->get_height();
+				vp.height = message_image->get_height();
+				vp.width = message_image->get_width();
+				cmd->set_viewport(vp);
+
+				cmd->draw(3);
+
+				if (SDL_GetTicks() > message_timer)
+				{
+					messages.pop();
+					message_timer = SDL_GetTicks() + MESSAGE_TIME;
+				}
+			}
 		}

 		cmd->end_render_pass();
@@ -429,10 +547,14 @@ void rdp_set_vi_register(uint32_t reg, uint32_t value)
 	processor->set_vi_register(RDP::VIRegister(reg), value);
 }

-void rdp_update_screen()
+void rdp_render_frame()
 {
 	auto &device = wsi->get_device();
 	render_frame(device);
+}
+
+void rdp_update_screen()
+{
 	wsi->end_frame();
 	wsi->begin_frame();
 }
@@ -444,9 +566,32 @@ CALL_BACK rdp_check_callback()
 	callback.load_state = false;
 	callback.lower_volume = false;
 	callback.raise_volume = false;
+	callback.frame_advance = false;
 	return return_value;
 }

+void rdp_check_framebuffers(uint32_t address, uint32_t length)
+{
+	if (sync_signal)
+	{
+		address >>= 3;
+		length = (length + 7) >> 3;
+
+		if (address >= rdram_dirty.size())
+			return;
+
+		uint32_t end_addr = std::min(address + length, static_cast<uint32_t>(rdram_dirty.size()));
+
+		auto it = std::find(rdram_dirty.begin() + address, rdram_dirty.begin() + end_addr, true);
+		if (it != rdram_dirty.begin() + end_addr)
+		{
+			processor->wait_for_timeline(sync_signal);
+			rdram_dirty.assign(gfx_info.RDRAM_SIZE >> 3, false);
+			sync_signal = 0;
+		}
+	}
+}
+
 size_t rdp_state_size()
 {
 	return sizeof(RDP_DEVICE);
@@ -454,6 +599,7 @@ size_t rdp_state_size()

 void rdp_save_state(uint8_t *state)
 {
+	processor->wait_for_timeline(processor->signal_timeline());
 	memcpy(state, &rdp_device, sizeof(RDP_DEVICE));
 }

@@ -462,6 +608,31 @@ void rdp_load_state(const uint8_t *state)
 	memcpy(&rdp_device, state, sizeof(RDP_DEVICE));
 }

+void rdp_onscreen_message(const char *_message)
+{
+	if (messages.empty())
+		message_timer = SDL_GetTicks() + MESSAGE_TIME;
+	messages.push(_message);
+}
+
+uint32_t pixel_size(uint32_t pixel_type, uint32_t area)
+{
+	switch (pixel_type)
+	{
+	case 0:
+		return area / 2;
+	case 1:
+		return area;
+	case 2:
+		return area * 2;
+	case 3:
+		return area * 4;
+	default:
+		printf("Invalid pixel size: %u\n", pixel_type);
+		return 0;
+	}
+}
+
 uint64_t rdp_process_commands()
 {
 	uint64_t interrupt_timer = 0;
@@ -525,6 +696,75 @@ uint64_t rdp_process_commands()

 		switch (RDP::Op(command))
 		{
+		case RDP::Op::FillTriangle:
+		case RDP::Op::FillZBufferTriangle:
+		case RDP::Op::TextureTriangle:
+		case RDP::Op::TextureZBufferTriangle:
+		case RDP::Op::ShadeTriangle:
+		case RDP::Op::ShadeZBufferTriangle:
+		case RDP::Op::ShadeTextureTriangle:
+		case RDP::Op::ShadeTextureZBufferTriangle:
+		case RDP::Op::TextureRectangle:
+		case RDP::Op::TextureRectangleFlip:
+		case RDP::Op::FillRectangle:
+		{
+			uint32_t offset_address = (rdp_device.frame_buffer_info.framebuffer_address + pixel_size(rdp_device.frame_buffer_info.framebuffer_pixel_size, rdp_device.frame_buffer_info.framebuffer_y_offset * rdp_device.frame_buffer_info.framebuffer_width)) >> 3;
+			if (offset_address < rdram_dirty.size() && !rdram_dirty[offset_address])
+			{
+				uint32_t end_addr = std::min(offset_address + ((pixel_size(rdp_device.frame_buffer_info.framebuffer_pixel_size, rdp_device.frame_buffer_info.framebuffer_width * rdp_device.frame_buffer_info.framebuffer_height) + 7) >> 3), static_cast<uint32_t>(rdram_dirty.size()));
+				std::fill(rdram_dirty.begin() + offset_address, rdram_dirty.begin() + end_addr, true);
+			}
+
+			if (rdp_device.frame_buffer_info.depth_buffer_enabled)
+			{
+				offset_address = (rdp_device.frame_buffer_info.depthbuffer_address + pixel_size(2, rdp_device.frame_buffer_info.framebuffer_y_offset * rdp_device.frame_buffer_info.framebuffer_width)) >> 3;
+				if (offset_address < rdram_dirty.size() && !rdram_dirty[offset_address])
+				{
+					uint32_t end_addr = std::min(offset_address + ((pixel_size(2, rdp_device.frame_buffer_info.framebuffer_width * rdp_device.frame_buffer_info.framebuffer_height) + 7) >> 3), static_cast<uint32_t>(rdram_dirty.size()));
+					std::fill(rdram_dirty.begin() + offset_address, rdram_dirty.begin() + end_addr, true);
+				}
+			}
+		}
+		break;
+		case RDP::Op::LoadTLut:
+		case RDP::Op::LoadTile:
+		{
+			uint32_t upper_left_t = (w1 & 0xFFF) >> 2;
+			uint32_t offset_address = (rdp_device.frame_buffer_info.texture_address + pixel_size(rdp_device.frame_buffer_info.texture_pixel_size, upper_left_t * rdp_device.frame_buffer_info.texture_width)) >> 3;
+			if (offset_address < rdram_dirty.size() && !rdram_dirty[offset_address])
+			{
+				uint32_t lower_right_t = (w2 & 0xFFF) >> 2;
+				uint32_t end_addr = std::min(offset_address + ((pixel_size(rdp_device.frame_buffer_info.texture_pixel_size, (lower_right_t - upper_left_t) * rdp_device.frame_buffer_info.texture_width) + 7) >> 3), static_cast<uint32_t>(rdram_dirty.size()));
+				std::fill(rdram_dirty.begin() + offset_address, rdram_dirty.begin() + end_addr, true);
+			}
+		}
+		break;
+		case RDP::Op::LoadBlock:
+		{
+			uint32_t upper_left_s = ((w1 >> 12) & 0xFFF);
+			uint32_t upper_left_t = (w1 & 0xFFF);
+			uint32_t offset_address = (rdp_device.frame_buffer_info.texture_address + pixel_size(rdp_device.frame_buffer_info.texture_pixel_size, upper_left_s + upper_left_t * rdp_device.frame_buffer_info.texture_width)) >> 3;
+			if (offset_address < rdram_dirty.size() && !rdram_dirty[offset_address])
+			{
+				uint32_t lower_right_s = ((w2 >> 12) & 0xFFF);
+				uint32_t end_addr = std::min(offset_address + ((pixel_size(rdp_device.frame_buffer_info.texture_pixel_size, lower_right_s - upper_left_s) + 7) >> 3), static_cast<uint32_t>(rdram_dirty.size()));
+				std::fill(rdram_dirty.begin() + offset_address, rdram_dirty.begin() + end_addr, true);
+			}
+		}
+		break;
+		case RDP::Op::SetColorImage:
+			rdp_device.frame_buffer_info.framebuffer_address = (w2 & 0x00FFFFFF);
+			rdp_device.frame_buffer_info.framebuffer_pixel_size = (w1 >> 19) & 0x3;
+			rdp_device.frame_buffer_info.framebuffer_width = (w1 & 0x3FF) + 1;
+			break;
+		case RDP::Op::SetMaskImage:
+			rdp_device.frame_buffer_info.depthbuffer_address = (w2 & 0x00FFFFFF);
+			break;
+		case RDP::Op::SetTextureImage:
+			rdp_device.frame_buffer_info.texture_address = (w2 & 0x00FFFFFF);
+			rdp_device.frame_buffer_info.texture_pixel_size = (w1 >> 19) & 0x3;
+			rdp_device.frame_buffer_info.texture_width = (w1 & 0x3FF) + 1;
+			break;
 		case RDP::Op::SetScissor:
 		{
 			uint32_t upper_left_x = ((w1 >> 12) & 0xFFF) >> 2;
@@ -539,10 +779,21 @@ uint64_t rdp_process_commands()
 			{
 				rdp_device.region = 0;
 			}
-			break;
+
+			rdp_device.frame_buffer_info.framebuffer_y_offset = upper_left_y;
+			rdp_device.frame_buffer_info.framebuffer_height = lower_right_y - upper_left_y;
 		}
+		break;
+		case RDP::Op::SetOtherModes:
+		{
+			uint8_t cycle_type = (w1 >> 20) & 3;
+			uint8_t depth_read_write = (w2 >> 4) & 3;
+			rdp_device.frame_buffer_info.depth_buffer_enabled = ((cycle_type & 2) == 0) && (depth_read_write != 0);
+		}
+		break;
 		case RDP::Op::SyncFull:
-			processor->wait_for_timeline(processor->signal_timeline());
+			sync_signal = processor->signal_timeline();
+
 			interrupt_timer = rdp_device.region;
 			if (interrupt_timer == 0)
 				interrupt_timer = 5000;
@@ -33,15 +33,21 @@ extern "C"
 		bool enable_speedlimiter;
 		bool lower_volume;
 		bool raise_volume;
+		bool paused;
+		bool frame_advance;
+		uint32_t save_state_slot;
 	} CALL_BACK;

-	void rdp_init(void *_window, GFX_INFO _gfx_info);
+	void rdp_init(void *_window, GFX_INFO _gfx_info, const void *font, size_t font_size);
 	void rdp_close();
 	void rdp_set_vi_register(uint32_t reg, uint32_t value);
 	void rdp_update_screen();
+	void rdp_render_frame();
 	CALL_BACK rdp_check_callback();
 	uint64_t rdp_process_commands();
+	void rdp_onscreen_message(const char *_message);
 	void rdp_new_processor(GFX_INFO _gfx_info);
+	void rdp_check_framebuffers(uint32_t address, uint32_t length);
 	size_t rdp_state_size();
 	void rdp_save_state(uint8_t *state);
 	void rdp_load_state(const uint8_t *state);
@@ -56,7 +56,6 @@ bool SDL_WSIPlatform::alive(Vulkan::WSI &wsi)

 void SDL_WSIPlatform::poll_input()
 {
-	SDL_PumpEvents();
 }

 void SDL_WSIPlatform::poll_input_async(Granite::InputTrackerHandler *handler)
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.88.0"
+channel = "1.93.0"
@@ -0,0 +1,189 @@
+use crate::device;
+use crate::ui;
+
+#[derive(serde::Serialize, serde::Deserialize, Copy, Clone)]
+pub struct DecodedCheat {
+    code_type: u8,
+    address: u32,
+    data: u16,
+}
+
+#[derive(serde::Serialize, serde::Deserialize)]
+pub struct Cheats {
+    pub cheats: Vec<Vec<DecodedCheat>>,
+    pub boot: bool,
+    pub enabled: bool,
+}
+
+pub fn init(
+    device: &mut device::Device,
+    cheat_settings: std::collections::HashMap<String, Option<String>>,
+) {
+    let cheats =
+        serde_json::from_slice::<ui::cheats::Cheats>(include_bytes!("../data/cheats.json"))
+            .unwrap()
+            .get(&ui::storage::get_game_crc(&device.cart.rom))
+            .cloned()
+            .unwrap_or_default();
+
+    let re = regex::Regex::new(r"\?+").unwrap();
+    for cheat_setting in cheat_settings.iter() {
+        if let Some(cheat_data) = cheats.get(cheat_setting.0) {
+            let mut option_value = None;
+            if let Some(option) = cheat_setting.1 {
+                if let Some(found_option_value) = cheat_data
+                    .options
+                    .as_ref()
+                    .cloned()
+                    .unwrap_or_default()
+                    .get(option)
+                {
+                    option_value = Some(found_option_value.to_string());
+                } else {
+                    panic!("Cheat option: {option} not found");
+                }
+            }
+
+            println!(
+                "Cheat: {} Option: {}",
+                cheat_setting.0,
+                cheat_setting.1.clone().unwrap_or("none".to_string())
+            );
+            let mut decoded_cheat: Vec<DecodedCheat> = vec![];
+            for code in cheat_data.data.iter() {
+                let mut result = code.clone();
+                if let Some(option_value) = option_value.as_ref() {
+                    result = re.replace_all(code, option_value).into_owned();
+                }
+                let mut split = result.split_whitespace();
+                let first_part = u32::from_str_radix(split.next().unwrap(), 16).unwrap();
+                decoded_cheat.push(DecodedCheat {
+                    code_type: (first_part >> 24) as u8,
+                    address: first_part & 0x00FFFFFF,
+                    data: u16::from_str_radix(split.next().unwrap(), 16).unwrap(),
+                });
+            }
+            device.cheats.cheats.push(decoded_cheat);
+        } else {
+            println!("Could not find cheat: {}", cheat_setting.0);
+        }
+    }
+
+    if !device.cheats.cheats.is_empty() {
+        device.cheats.enabled = true;
+        ui::video::onscreen_message(&device.ui, "Cheats enabled");
+    }
+}
+
+fn write_byte(device: &mut device::Device, cheat_line: &DecodedCheat) {
+    *device
+        .rdram
+        .mem
+        .get_mut(cheat_line.address as usize ^ device.byte_swap)
+        .unwrap_or(&mut 0) = cheat_line.data as u8;
+}
+
+fn write_half(device: &mut device::Device, cheat_line: &DecodedCheat) {
+    *device
+        .rdram
+        .mem
+        .get_mut(cheat_line.address as usize ^ device.byte_swap)
+        .unwrap_or(&mut 0) = (cheat_line.data >> 8) as u8;
+    *device
+        .rdram
+        .mem
+        .get_mut((cheat_line.address + 1) as usize ^ device.byte_swap)
+        .unwrap_or(&mut 0) = cheat_line.data as u8;
+}
+
+fn equal_byte(device: &mut device::Device, cheat_line: &DecodedCheat) -> bool {
+    let current_value = *device
+        .rdram
+        .mem
+        .get(cheat_line.address as usize ^ device.byte_swap)
+        .unwrap_or(&0);
+    current_value == (cheat_line.data as u8)
+}
+
+fn equal_half(device: &mut device::Device, cheat_line: &DecodedCheat) -> bool {
+    let current_value1 = *device
+        .rdram
+        .mem
+        .get(cheat_line.address as usize ^ device.byte_swap)
+        .unwrap_or(&0);
+    let current_value2 = *device
+        .rdram
+        .mem
+        .get((cheat_line.address + 1) as usize ^ device.byte_swap)
+        .unwrap_or(&0);
+    current_value1 == (cheat_line.data >> 8) as u8 && current_value2 == cheat_line.data as u8
+}
+
+pub fn execute_cheats(device: &mut device::Device, cheats: Vec<Vec<DecodedCheat>>) {
+    for cheat in cheats.iter() {
+        let mut valid = true;
+        let mut cheat_iter = cheat.iter().peekable();
+        while let Some(cheat_line) = cheat_iter.next() {
+            match cheat_line.code_type {
+                0x50 => {
+                    if valid {
+                        let mut expanded_cheat: Vec<DecodedCheat> = vec![];
+                        let compressed_cheat = *cheat_iter.peek().unwrap();
+                        let count = (cheat_line.address & 0xFF00) >> 8;
+                        let offset = cheat_line.address & 0xFF;
+                        for i in 0..count {
+                            let line = DecodedCheat {
+                                code_type: compressed_cheat.code_type,
+                                address: compressed_cheat.address + (i * offset),
+                                data: compressed_cheat.data
+                                    + (i as i16 * cheat_line.data as i16) as u16,
+                            };
+                            expanded_cheat.push(line);
+                        }
+                        execute_cheats(device, [expanded_cheat].to_vec());
+                    }
+                    valid = false; // skip the next line
+                }
+                0x80 | 0xA0 => {
+                    if valid {
+                        write_byte(device, cheat_line);
+                    }
+                    valid = true;
+                }
+                0x81 | 0xA1 => {
+                    if valid {
+                        write_half(device, cheat_line);
+                    }
+                    valid = true;
+                }
+                0xF0 => {
+                    if device.cheats.boot && valid {
+                        write_byte(device, cheat_line);
+                        valid = true;
+                    }
+                }
+                0xF1 => {
+                    if device.cheats.boot && valid {
+                        write_half(device, cheat_line);
+                        valid = true;
+                    }
+                }
+                0xD0 => {
+                    valid = equal_byte(device, cheat_line);
+                }
+                0xD1 => {
+                    valid = equal_half(device, cheat_line);
+                }
+                0xD2 => {
+                    valid = !equal_byte(device, cheat_line);
+                }
+                0xD3 => {
+                    valid = !equal_half(device, cheat_line);
+                }
+                0x88 | 0x89 | 0xD8 | 0xD9 | 0xDA | 0xDB => { /* GS button not emulated */ }
+                _ => panic!("Unknown cheat code type: {:X}", cheat_line.code_type),
+            }
+        }
+    }
+    device.cheats.boot = false;
+}
@@ -1,4 +1,4 @@
-#include "src/compat/sse2neon/v1.8.0/sse2neon.h"
+#include "src/compat/sse2neon/sse2neon.h"

 // Static wrappers

@@ -12,7 +12,7 @@ use std::arch::x86_64::*;

 use rand_chacha::rand_core::{RngCore, SeedableRng};

-use crate::{netplay, ui};
+use crate::{cheats, netplay, ui};
 use std::{collections::HashMap, fs, io::Read};

 pub mod ai;
@@ -44,9 +44,12 @@ pub mod tlb;
 pub mod unmapped;
 pub mod vi;

-pub fn run_game(device: &mut Device, rom_contents: Vec<u8>, fullscreen: bool, overclock: bool) {
-    device.ui.video.fullscreen = fullscreen;
-    device.cpu.overclock = overclock;
+pub fn run_game(device: &mut Device, rom_contents: Vec<u8>, game_settings: ui::gui::GameSettings) {
+    device.ui.video.fullscreen = game_settings.fullscreen;
+    device.cpu.overclock = game_settings.overclock;
+    if game_settings.disable_expansion_pak {
+        device.rdram.size = 0x400000;
+    }

    init_rng(device);

@@ -55,8 +58,8 @@ pub fn run_game(device: &mut Device, rom_contents: Vec<u8>, fullscreen: bool, ov
    // rdram pointer is shared with parallel-rdp
    rdram::init(device);

-    ui::audio::init(&mut device.ui, device.ai.freq);
    ui::video::init(device);
+    ui::audio::init(&mut device.ui, device.ai.freq);
    ui::input::init(&mut device.ui);

    mi::init(device);
@@ -74,12 +77,14 @@ pub fn run_game(device: &mut Device, rom_contents: Vec<u8>, fullscreen: bool, ov
    ui::storage::init(&mut device.ui, &device.cart.rom);
    ui::storage::load_saves(&mut device.ui, &mut device.netplay);

+    cheats::init(device, game_settings.cheats);
+
    cpu::run(device);

-    ui::input::close(&mut device.ui);
-    ui::video::close(&device.ui);
-    ui::audio::close(&mut device.ui);
    ui::storage::write_saves(device);
+    ui::input::close(&mut device.ui);
+    ui::audio::close(&mut device.ui);
+    ui::video::close(&device.ui);
 }

 fn set_rng() -> rand_chacha::ChaCha8Rng {
@@ -88,8 +93,7 @@ fn set_rng() -> rand_chacha::ChaCha8Rng {

 fn init_rng(device: &mut Device) {
    let mut rng_seed = set_rng().next_u64();
-    if device.netplay.is_some() {
-        let netplay = device.netplay.as_mut().unwrap();
+    if let Some(netplay) = &mut device.netplay {
        if netplay.player_number == 0 {
            netplay::send_rng(netplay, rng_seed);
        } else {
@@ -146,12 +150,12 @@ pub fn get_rom_contents(file_path: &std::path::Path) -> Option<Vec<u8>> {
        }
    } else if file_path.extension().unwrap().eq_ignore_ascii_case("7z") {
        let mut archive =
-            sevenz_rust2::SevenZReader::open(file_path, sevenz_rust2::Password::empty()).unwrap();
+            sevenz_rust2::ArchiveReader::open(file_path, sevenz_rust2::Password::empty()).unwrap();

        let mut found = false;
        archive
            .for_each_entries(
-                &mut |entry: &sevenz_rust2::SevenZArchiveEntry, reader: &mut dyn std::io::Read| {
+                &mut |entry: &sevenz_rust2::ArchiveEntry, reader: &mut dyn std::io::Read| {
                    let name = entry.name().to_ascii_lowercase();
                    if !found
                        && (name.ends_with("z64") || name.ends_with("n64") || name.ends_with("v64"))
@@ -185,7 +189,7 @@ pub struct Device {
    pub netplay: Option<netplay::Netplay>,
    #[serde(skip, default = "ui::Ui::default")]
    pub ui: ui::Ui,
-    byte_swap: usize,
+    pub byte_swap: usize,
    pub save_state: bool,
    pub load_state: bool,
    pub cpu: cpu::Cpu,
@@ -204,8 +208,8 @@ pub struct Device {
    #[serde(skip, default = "set_rng")]
    pub rng: rand_chacha::ChaCha8Rng,
    pub vru: controller::vru::Vru,
-    pub vru_window: controller::vru::VruWindow,
    pub transferpaks: [controller::transferpak::TransferPak; 4],
+    pub cheats: cheats::Cheats,
 }

 pub fn zero_m128i() -> __m128i {
@@ -341,6 +345,7 @@ impl Device {
                    sector: 0,
                    buffer: vec![0; 8192],
                    writeback_sector: vec![0; 256],
+                    usb_buffer: vec![],
                },
                flashram: cart::sram::Flashram {
                    status: 0,
@@ -476,10 +481,6 @@ impl Device {
                limit_freq: 2,
                limit_freq_check: std::time::Instant::now(),
            },
-            vru_window: controller::vru::VruWindow {
-                window_notifier: None,
-                word_receiver: None,
-            },
            vru: controller::vru::Vru {
                status: 0,
                voice_state: 0,
@@ -497,6 +498,11 @@ impl Device {
                controller::transferpak::TransferPak::default(),
                controller::transferpak::TransferPak::default(),
            ],
+            cheats: cheats::Cheats {
+                cheats: vec![],
+                boot: true,
+                enabled: false,
+            },
        }
    }
 }
@@ -45,11 +45,10 @@ fn get_remaining_dma_length(device: &device::Device) -> u64 {
 }

 fn get_dma_duration(device: &device::Device) -> u64 {
-    let samples_per_sec = device.vi.clock / (1 + device.ai.regs[AI_DACRATE_REG as usize]) as u64;
    let bytes_per_sample = 4; /* XXX: assume 16bit stereo - should depends on bitrate instead */
    let length = (device.ai.regs[AI_LEN_REG as usize] & !7) as u64;

-    length * (device.cpu.clock_rate / (bytes_per_sample * samples_per_sec))
+    (length * device.cpu.clock_rate) / (bytes_per_sample * device.ai.freq)
 }

 fn do_dma(device: &mut device::Device) {
@@ -146,8 +145,8 @@ pub fn write_regs(device: &mut device::Device, address: u64, value: u32, mask: u
        AI_DACRATE_REG => {
            if device.ai.regs[reg as usize] != value & mask {
                device.ai.freq = device.vi.clock / (1 + (value & mask)) as u64;
-                ui::audio::close(&mut device.ui);
-                ui::audio::init(&mut device.ui, device.ai.freq)
+                ui::audio::close_game_audio(&mut device.ui);
+                ui::audio::init_game_audio(&mut device.ui, device.ai.freq)
            }
            device::memory::masked_write_32(&mut device.ai.regs[reg as usize], value, mask)
        }
@@ -21,16 +21,6 @@ const JDT_EEPROM_16K: u16 = 0xc000; /* 16k EEPROM */
 const EEPROM_BLOCK_SIZE: usize = 8;
 pub const EEPROM_MAX_SIZE: usize = 0x800;

-#[derive(serde::Serialize, serde::Deserialize)]
-pub enum CicType {
-    CicNus6101,
-    CicNus6102,
-    CicNus6103,
-    CicNus6105,
-    CicNus6106,
-    CicNus5167,
-}
-
 #[derive(serde::Serialize, serde::Deserialize)]
 pub struct AfRtc {
    pub control: u16,
@@ -157,7 +147,7 @@ fn eeprom_write_block(device: &mut device::Device, block: usize, offset: usize,

    device.pif.ram[status] = 0x00;

-    device.ui.storage.saves.eeprom.written = true
+    ui::storage::schedule_save(device, ui::storage::SaveTypes::Eeprom4k);
 }

 fn time2data(device: &mut device::Device, offset: usize) {
@@ -1,8 +1,9 @@
 use crate::device;
 use crate::netplay;
+use crate::ui;
 use sha2::{Digest, Sha256};

-const CART_MASK: usize = 0xFFFFFFF;
+pub const CART_MASK: usize = 0xFFFFFFF;

 fn read_cart_word(device: &device::Device, address: usize) -> u32 {
    let mut data: [u8; 4] = [0; 4];
@@ -50,9 +51,7 @@ pub fn read_mem(
 }

 pub fn write_mem(device: &mut device::Device, address: u64, value: u32, mask: u32) {
-    if device.cart.sc64.cfg[device::cart::sc64::SC64_ROM_WRITE_ENABLE as usize] != 0
-        && device.cart.sc64.cfg[device::cart::sc64::SC64_BOOTLOADER_SWITCH as usize] == 0
-    {
+    if device.cart.sc64.cfg[device::cart::sc64::SC64_ROM_WRITE_ENABLE as usize] != 0 {
        let masked_address = address as usize & CART_MASK;
        let mut data = read_cart_word(device, masked_address);
        device::memory::masked_write_32(&mut data, value, mask);
@@ -65,7 +64,7 @@ pub fn write_mem(device: &mut device::Device, address: u64, value: u32, mask: u3
                .data
                .insert((masked_address + i) as u32, *item);
        }
-        device.ui.storage.saves.romsave.written = true;
+        ui::storage::schedule_save(device, ui::storage::SaveTypes::Romsave);
    }

    device.cart.latch = value & mask;
@@ -82,19 +81,21 @@ pub fn dma_read(
    mut dram_addr: u32,
    length: u32,
 ) -> u64 {
-    if device.cart.sc64.cfg[device::cart::sc64::SC64_ROM_WRITE_ENABLE as usize] != 0
-        && device.cart.sc64.cfg[device::cart::sc64::SC64_BOOTLOADER_SWITCH as usize] == 0
-    {
+    if device.cart.sc64.cfg[device::cart::sc64::SC64_ROM_WRITE_ENABLE as usize] != 0 {
        dram_addr &= device::rdram::RDRAM_MASK as u32;
        cart_addr &= CART_MASK as u32;

        for i in 0..length {
            device.ui.storage.saves.romsave.data.insert(
                cart_addr + i,
-                device.rdram.mem[(dram_addr + i) as usize ^ device.byte_swap],
+                *device
+                    .rdram
+                    .mem
+                    .get((dram_addr + i) as usize ^ device.byte_swap)
+                    .unwrap_or(&0),
            );
        }
-        device.ui.storage.saves.romsave.written = true;
+        ui::storage::schedule_save(device, ui::storage::SaveTypes::Romsave);
    }

    device::pi::calculate_cycles(device, 1, length)
@@ -113,10 +114,17 @@ pub fn dma_write(
    let mut j = cart_addr;
    while i < dram_addr + length {
        if let Some(value) = device.ui.storage.saves.romsave.data.get(&j) {
-            device.rdram.mem[i as usize ^ device.byte_swap] = *value;
+            *device
+                .rdram
+                .mem
+                .get_mut(i as usize ^ device.byte_swap)
+                .unwrap_or(&mut 0) = *value;
        } else {
-            device.rdram.mem[i as usize ^ device.byte_swap] =
-                *device.cart.rom.get(j as usize).unwrap_or(&0);
+            *device
+                .rdram
+                .mem
+                .get_mut(i as usize ^ device.byte_swap)
+                .unwrap_or(&mut 0) = *device.cart.rom.get(j as usize).unwrap_or(&0);
        }
        i += 1;
        j += 1;
@@ -128,8 +136,7 @@ pub fn dma_write(
 pub fn init(device: &mut device::Device, rom_file: Vec<u8>) {
    let now: chrono::DateTime<chrono::Local> = chrono::Local::now();
    device.cart.rtc_timestamp = now.naive_local().and_utc().timestamp();
-    if device.netplay.is_some() {
-        let netplay = device.netplay.as_mut().unwrap();
+    if let Some(netplay) = &mut device.netplay {
        if netplay.player_number == 0 {
            netplay::send_rtc(netplay, device.cart.rtc_timestamp);
        } else {
@@ -182,7 +189,6 @@ fn set_cic(device: &mut device::Device) {
        "53C0088FB777870D0AF32F0251E964030E2E8B72E830C26042FD191169508C05" => {
            device.cart.cic_seed = 0xdd; // CicNus5167
            device.cart.sc64.cfg[device::cart::sc64::SC64_ROM_WRITE_ENABLE as usize] = 1;
-            device.cart.sc64.cfg[device::cart::sc64::SC64_BOOTLOADER_SWITCH as usize] = 0;
        }
        _ => {
            device.cart.cic_seed = 0x3F; // CicNus6102
@@ -28,6 +28,7 @@ pub struct Sc64 {
    pub cfg: [u32; SC64_CFG_COUNT as usize],
    pub sector: u32,
    pub writeback_sector: Vec<u32>,
+    pub usb_buffer: Vec<u8>,
 }

 fn format_sdcard(device: &mut device::Device) {
@@ -155,24 +156,26 @@ pub fn write_regs(device: &mut device::Device, address: u64, value: u32, mask: u
                        let mut i = 0;

                        while i < length {
-                            if offset + i < device.ui.storage.saves.sdcard.data.len() {
-                                let data = u32::from_be_bytes(
-                                    device.ui.storage.saves.sdcard.data
-                                        [(offset + i)..(offset + i + 4)]
-                                        .try_into()
-                                        .unwrap(),
-                                );
+                            let data = u32::from_be_bytes(
+                                device
+                                    .ui
+                                    .storage
+                                    .saves
+                                    .sdcard
+                                    .data
+                                    .get((offset + i)..(offset + i + 4))
+                                    .unwrap_or(&[0; 4])
+                                    .try_into()
+                                    .unwrap_or_default(),
+                            );

-                                device::memory::data_write(
-                                    device,
-                                    address + i as u64,
-                                    data,
-                                    0xFFFFFFFF,
-                                    false,
-                                );
-                            } else {
-                                panic!("sd card read out of bounds")
-                            }
+                            device::memory::data_write(
+                                device,
+                                address + i as u64,
+                                data,
+                                0xFFFFFFFF,
+                                false,
+                            );
                            i += 4;
                        }
                    }
@@ -187,25 +190,152 @@ pub fn write_regs(device: &mut device::Device, address: u64, value: u32, mask: u
                        let mut i = 0;

                        while i < length {
-                            if offset + i < device.ui.storage.saves.sdcard.data.len() {
-                                let data = device::memory::data_read(
-                                    device,
-                                    address + i as u64,
-                                    device::memory::AccessSize::Word,
-                                    false,
-                                )
-                                .to_be_bytes();
-                                device.ui.storage.saves.sdcard.data[(offset + i)..(offset + i + 4)]
-                                    .copy_from_slice(&data);
-                            } else {
-                                panic!("sd card write out of bounds")
-                            }
+                            let data = device::memory::data_read(
+                                device,
+                                address + i as u64,
+                                device::memory::AccessSize::Word,
+                                false,
+                            )
+                            .to_be_bytes();
+                            device
+                                .ui
+                                .storage
+                                .saves
+                                .sdcard
+                                .data
+                                .get_mut((offset + i)..(offset + i + 4))
+                                .unwrap_or(&mut [0; 4])
+                                .copy_from_slice(&data);
                            i += 4;
                        }
-                        device.ui.storage.saves.sdcard.written = true;
+                        ui::storage::schedule_save(device, ui::storage::SaveTypes::Sdcard);
+                    }
+                    'U' => {
+                        device.cart.sc64.regs[SC64_DATA0_REG as usize] = 0;
+                    }
+                    'u' => {
+                        // used to notify the game that there is data to read
+                        if let Some(cart_rx) = device.ui.usb.cart_rx.as_mut() {
+                            match cart_rx.try_recv() {
+                                Ok(data) => {
+                                    device.cart.sc64.regs[SC64_DATA0_REG as usize] =
+                                        data.data_type & 0xFF; // read_status/type
+                                    device.cart.sc64.regs[SC64_DATA1_REG as usize] =
+                                        data.data_size & 0xFFFFFF; // length
+                                    device.cart.sc64.usb_buffer = data.data; // store the data to be read
+                                }
+                                Err(err) => {
+                                    match err {
+                                        tokio::sync::broadcast::error::TryRecvError::Lagged(_) => {
+                                            panic!("cart_rx lagged: {err}");
+                                        }
+                                        _ => {
+                                            device.cart.sc64.regs[SC64_DATA0_REG as usize] = 0; // read_status/type
+                                            device.cart.sc64.regs[SC64_DATA1_REG as usize] = 0; // length
+                                        }
+                                    }
+                                }
+                            }
+                        } else {
+                            device.cart.sc64.regs[SC64_DATA0_REG as usize] = 0; // read_status/type
+                            device.cart.sc64.regs[SC64_DATA1_REG as usize] = 0; // length
+                        }
+                    }
+                    'M' => {
+                        // Send data from from flashcart to USB
+                        let address =
+                            device.cart.sc64.regs[SC64_DATA0_REG as usize] as u64 & 0x1FFFFFFF;
+                        let length =
+                            device.cart.sc64.regs[SC64_DATA1_REG as usize] as usize & 0xFFFFFF;
+
+                        if let Some(usb_tx) = device.ui.usb.usb_tx.as_mut() {
+                            let mut usb_buffer = vec![0; length];
+
+                            let mut i = 0;
+
+                            if address < device.rdram.size as u64 {
+                                while i < length {
+                                    *usb_buffer.get_mut(i).unwrap_or(&mut 0) = *device
+                                        .rdram
+                                        .mem
+                                        .get((address as usize + i) ^ device.byte_swap)
+                                        .unwrap_or(&0);
+                                    i += 1;
+                                }
+                            } else if address >= device::memory::MM_CART_ROM as u64
+                                && address < device::memory::MM_PIF_MEM as u64
+                            {
+                                while i < length {
+                                    *usb_buffer.get_mut(i).unwrap_or(&mut 0) = *device
+                                        .ui
+                                        .storage
+                                        .saves
+                                        .romsave
+                                        .data
+                                        .get(
+                                            &(((address as usize + i)
+                                                & device::cart::rom::CART_MASK)
+                                                as u32),
+                                        )
+                                        .unwrap_or(
+                                            device
+                                                .cart
+                                                .rom
+                                                .get(
+                                                    (address as usize + i)
+                                                        & device::cart::rom::CART_MASK,
+                                                )
+                                                .unwrap_or(&0),
+                                        );
+                                    i += 1;
+                                }
+                            } else {
+                                panic!("Unknown address {address:#x} for SC64 M command");
+                            }
+
+                            ui::usb::send_to_usb(
+                                usb_tx,
+                                ui::usb::UsbData {
+                                    data: usb_buffer,
+                                    data_type: device.cart.sc64.regs[SC64_DATA1_REG as usize] >> 24,
+                                    data_size: device.cart.sc64.regs[SC64_DATA1_REG as usize]
+                                        & 0xFFFFFF,
+                                },
+                            );
+                        }
+                    }
+                    'm' => {
+                        // Receive data from USB to flashcart
+                        let address =
+                            device.cart.sc64.regs[SC64_DATA0_REG as usize] as u64 & 0x1FFFFFFF;
+                        let length = device.cart.sc64.regs[SC64_DATA1_REG as usize] as usize;
+
+                        let mut i = 0;
+
+                        if address < device.rdram.size as u64 {
+                            while i < length {
+                                *device
+                                    .rdram
+                                    .mem
+                                    .get_mut((address as usize + i) ^ device.byte_swap)
+                                    .unwrap_or(&mut 0) =
+                                    *device.cart.sc64.usb_buffer.get(i).unwrap_or(&0);
+                                i += 1;
+                            }
+                        } else if address >= device::memory::MM_CART_ROM as u64
+                            && address < device::memory::MM_PIF_MEM as u64
+                        {
+                            while i < length {
+                                device.ui.storage.saves.romsave.data.insert(
+                                    ((address as usize + i) & device::cart::rom::CART_MASK) as u32,
+                                    *device.cart.sc64.usb_buffer.get(i).unwrap_or(&0),
+                                );
+                                i += 1;
+                            }
+                        } else {
+                            panic!("Unknown address {address:#x} for SC64 m command");
+                        }
                    }
-                    'U' | 'u' => {} // USB status, ignored
-                    'M' | 'm' => {} // USB read/write, ignored
                    'w' => {
                        // SD card writeback pending
                        device.cart.sc64.regs[SC64_DATA0_REG as usize] = 0;
@@ -275,7 +405,7 @@ pub fn write_mem(device: &mut device::Device, address: u64, value: u32, mask: u3
        device::memory::masked_write_32(&mut data, value, mask);
        device.ui.storage.saves.eeprom.data[masked_address..masked_address + 4]
            .copy_from_slice(&data.to_be_bytes());
-        device.ui.storage.saves.eeprom.written = true
+        ui::storage::schedule_save(device, ui::storage::SaveTypes::Eeprom4k);
    } else {
        let masked_address = address as usize & SC64_BUFFER_MASK;
        let mut data = u32::from_be_bytes(
@@ -299,7 +429,7 @@ pub fn dma_read(
    let buffer = if cart_addr & 0x2000 != 0 {
        device::cart::format_eeprom(device);
        cart_addr &= SC64_EEPROM_MASK as u32;
-        device.ui.storage.saves.eeprom.written = true;
+        ui::storage::schedule_save(device, ui::storage::SaveTypes::Eeprom4k);
        &mut device.ui.storage.saves.eeprom.data
    } else {
        cart_addr &= SC64_BUFFER_MASK as u32;
@@ -308,8 +438,12 @@ pub fn dma_read(
    let mut i = dram_addr;
    let mut j = cart_addr;

-    while i < dram_addr + length && i < device.rdram.size {
-        buffer[j as usize] = device.rdram.mem[i as usize ^ device.byte_swap];
+    while i < dram_addr + length {
+        *buffer.get_mut(j as usize).unwrap_or(&mut 0) = *device
+            .rdram
+            .mem
+            .get(i as usize ^ device.byte_swap)
+            .unwrap_or(&0);
        i += 1;
        j += 1;
    }
@@ -335,8 +469,12 @@ pub fn dma_write(
    let mut i = dram_addr;
    let mut j = cart_addr;

-    while i < dram_addr + length && i < device.rdram.size {
-        device.rdram.mem[i as usize ^ device.byte_swap] = buffer[j as usize];
+    while i < dram_addr + length {
+        *device
+            .rdram
+            .mem
+            .get_mut(i as usize ^ device.byte_swap)
+            .unwrap_or(&mut 0) = *buffer.get(j as usize).unwrap_or(&0);
        i += 1;
        j += 1;
    }
@@ -107,7 +107,7 @@ fn write_mem_sram(device: &mut device::Device, address: u64, value: u32, mask: u
    device.ui.storage.saves.sram.data[masked_address..masked_address + 4]
        .copy_from_slice(&data.to_be_bytes());

-    device.ui.storage.saves.sram.written = true
+    ui::storage::schedule_save(device, ui::storage::SaveTypes::Sram);
 }

 fn write_mem_flash(device: &mut device::Device, address: u64, value: u32, mask: u32) {
@@ -150,14 +150,24 @@ fn dma_read_sram(device: &mut device::Device, mut cart_addr: u32, mut dram_addr:

    format_sram(device);

-    while i < dram_addr + length && i < device.rdram.size {
-        device.ui.storage.saves.sram.data[j as usize] =
-            device.rdram.mem[i as usize ^ device.byte_swap];
+    while i < dram_addr + length {
+        *device
+            .ui
+            .storage
+            .saves
+            .sram
+            .data
+            .get_mut(j as usize)
+            .unwrap_or(&mut 0) = *device
+            .rdram
+            .mem
+            .get(i as usize ^ device.byte_swap)
+            .unwrap_or(&0);
        i += 1;
        j += 1;
    }

-    device.ui.storage.saves.sram.written = true
+    ui::storage::schedule_save(device, ui::storage::SaveTypes::Sram);
 }

 fn dma_read_flash(device: &mut device::Device, cart_addr: u32, dram_addr: u32, length: u32) {
@@ -169,8 +179,11 @@ fn dma_read_flash(device: &mut device::Device, cart_addr: u32, dram_addr: u32, l
    {
        /* load page buf using DMA */
        for i in 0..length {
-            device.cart.flashram.page_buf[i as usize] =
-                device.rdram.mem[(dram_addr + i) as usize ^ device.byte_swap];
+            device.cart.flashram.page_buf[i as usize] = *device
+                .rdram
+                .mem
+                .get((dram_addr + i) as usize ^ device.byte_swap)
+                .unwrap_or(&0);
        }
    } else {
        /* other accesses are not implemented */
@@ -206,9 +219,19 @@ fn dma_write_sram(

    format_sram(device);

-    while i < dram_addr + length && i < device.rdram.size {
-        device.rdram.mem[i as usize ^ device.byte_swap] =
-            device.ui.storage.saves.sram.data[j as usize];
+    while i < dram_addr + length {
+        *device
+            .rdram
+            .mem
+            .get_mut(i as usize ^ device.byte_swap)
+            .unwrap_or(&mut 0) = *device
+            .ui
+            .storage
+            .saves
+            .sram
+            .data
+            .get(j as usize)
+            .unwrap_or(&0);
        i += 1;
        j += 1;
    }
@@ -227,10 +250,18 @@ fn dma_write_flash(
        && device.cart.flashram.mode == FlashramMode::ReadSiliconId
    {
        /* read Silicon ID using DMA */
-        device.rdram.mem[dram_addr as usize..dram_addr as usize + 4]
+        device
+            .rdram
+            .mem
+            .get_mut(dram_addr as usize..dram_addr as usize + 4)
+            .unwrap_or(&mut [0; 4])
            .copy_from_slice(&device.cart.flashram.silicon_id[0].to_ne_bytes());
        dram_addr += 4;
-        device.rdram.mem[dram_addr as usize..dram_addr as usize + 4]
+        device
+            .rdram
+            .mem
+            .get_mut(dram_addr as usize..dram_addr as usize + 4)
+            .unwrap_or(&mut [0; 4])
            .copy_from_slice(&device.cart.flashram.silicon_id[1].to_ne_bytes());
    } else if (cart_addr & 0x1ffff) < 0x10000
        && device.cart.flashram.mode == FlashramMode::ReadArray
@@ -250,8 +281,11 @@ fn dma_write_flash(

        /* do actual DMA */
        for i in 0..length {
-            device.rdram.mem[(dram_addr + i) as usize ^ device.byte_swap] =
-                device.ui.storage.saves.flash.data[(cart_addr + i) as usize];
+            *device
+                .rdram
+                .mem
+                .get_mut((dram_addr + i) as usize ^ device.byte_swap)
+                .unwrap_or(&mut 0) = device.ui.storage.saves.flash.data[(cart_addr + i) as usize];
        }
    } else {
        /* other accesses are not implemented */
@@ -297,12 +331,12 @@ fn flashram_command(device: &mut device::Device, command: u32) {
                for i in 0..128 * 128 {
                    device.ui.storage.saves.flash.data[offset + i] = 0xFF;
                }
-                device.ui.storage.saves.flash.written = true
+                ui::storage::schedule_save(device, ui::storage::SaveTypes::Flash);
            } else if device.cart.flashram.mode == FlashramMode::ChipErase {
                for i in 0..FLASHRAM_SIZE {
                    device.ui.storage.saves.flash.data[i] = 0xFF;
                }
-                device.ui.storage.saves.flash.written = true
+                ui::storage::schedule_save(device, ui::storage::SaveTypes::Flash);
            } else {
                panic!("Unexpected flash erase command")
            }
@@ -322,7 +356,7 @@ fn flashram_command(device: &mut device::Device, command: u32) {
            for i in 0..128 {
                device.ui.storage.saves.flash.data[offset + i] = device.cart.flashram.page_buf[i];
            }
-            device.ui.storage.saves.flash.written = true;
+            ui::storage::schedule_save(device, ui::storage::SaveTypes::Flash);

            /* clear program busy flag, set program success flag, transition to status mode */
            device.cart.flashram.status &= !0x01;
@@ -56,15 +56,14 @@ pub fn process(device: &mut device::Device, channel: usize) {
        }
        JCMD_CONTROLLER_READ => {
            let offset = device.pif.channels[channel].rx_buf.unwrap();
-            let input = if device.netplay.is_none() {
-                ui::input::get(&device.ui, channel)
-            } else {
-                if device.netplay.as_ref().unwrap().player_number as usize == channel {
+            let input = if let Some(netplay) = &mut device.netplay {
+                if netplay.player_number as usize == channel {
                    let local_input = ui::input::get(&device.ui, 0);
-                    netplay::send_input(device.netplay.as_ref().unwrap(), local_input);
+                    netplay::send_input(netplay, local_input);
                }
-
                netplay::get_input(device, channel)
+            } else {
+                ui::input::get(&device.ui, channel)
            };

            device.pif.ram[offset..offset + 4].copy_from_slice(&input.data.to_ne_bytes());
@@ -162,10 +161,12 @@ pub fn pak_switch_event(device: &mut device::Device) {
    for (i, channel) in device.pif.channels.iter_mut().enumerate() {
        if channel.change_pak != PakType::None {
            //stop rumble if it is on
-            if device.netplay.is_none() {
+            if let Some(netplay) = &device.netplay {
+                if netplay.player_number as usize == i {
+                    device::ui::input::set_rumble(&device.ui, 0, 0);
+                }
+            } else {
                device::ui::input::set_rumble(&device.ui, i, 0);
-            } else if device.netplay.as_ref().unwrap().player_number as usize == i {
-                device::ui::input::set_rumble(&device.ui, 0, 0);
            }

            let new_pak_type = match channel.change_pak {
@@ -189,20 +190,22 @@ pub fn pak_switch_event(device: &mut device::Device) {
                    write: device::controller::mempak::write,
                    pak_type: new_pak_type,
                });
+                ui::video::onscreen_message(&device.ui, "MemPak selected");
            } else if new_pak_type == PakType::RumblePak {
                channel.pak_handler = Some(device::controller::PakHandler {
                    read: device::controller::rumble::read,
                    write: device::controller::rumble::write,
                    pak_type: new_pak_type,
                });
+                ui::video::onscreen_message(&device.ui, "RumblePak selected");
            } else if new_pak_type == PakType::TransferPak {
                channel.pak_handler = Some(device::controller::PakHandler {
                    read: device::controller::transferpak::read,
                    write: device::controller::transferpak::write,
                    pak_type: new_pak_type,
                });
+                ui::video::onscreen_message(&device.ui, "TransferPak selected");
            }
-            ui::audio::play_pak_switch(&device.ui, new_pak_type);
            channel.change_pak = PakType::None;
        }
    }
@@ -1,4 +1,5 @@
 use crate::device;
+use crate::ui;

 pub const MEMPAK_SIZE: usize = 0x8000;
 const MPK_PAGE_SIZE: usize = 256;
@@ -96,6 +97,6 @@ pub fn write(device: &mut device::Device, channel: usize, address: u16, data: us
        device.ui.storage.saves.mempak.data[offset..offset + size]
            .copy_from_slice(&device.pif.ram[data..data + size]);

-        device.ui.storage.saves.mempak.written = true
+        ui::storage::schedule_save(device, ui::storage::SaveTypes::Mempak);
    }
 }
@@ -15,10 +15,13 @@ pub fn read(device: &mut device::Device, _channel: usize, address: u16, data: us
 pub fn write(device: &mut device::Device, channel: usize, address: u16, data: usize, size: usize) {
    if address == 0xc000 {
        let rumble = device.pif.ram[data + size - 1];
-        if device.netplay.is_none() {
+
+        if let Some(netplay) = &device.netplay {
+            if netplay.player_number as usize == channel {
+                device::ui::input::set_rumble(&device.ui, 0, rumble);
+            }
+        } else {
            device::ui::input::set_rumble(&device.ui, channel, rumble);
-        } else if device.netplay.as_ref().unwrap().player_number as usize == channel {
-            device::ui::input::set_rumble(&device.ui, 0, rumble);
        }
    }
 }
@@ -29,14 +29,6 @@ pub struct Vru {
    pub word_mappings: HashMap<String, String>,
 }

-#[derive(serde::Serialize, serde::Deserialize)]
-pub struct VruWindow {
-    #[serde(skip)]
-    pub window_notifier: Option<tokio::sync::mpsc::Sender<Option<Vec<String>>>>,
-    #[serde(skip)]
-    pub word_receiver: Option<tokio::sync::mpsc::Receiver<String>>,
-}
-
 pub fn init(device: &mut device::Device) {
    reset_vru(device);
    create_word_mappings(device);
@@ -187,12 +179,8 @@ pub fn process(device: &mut device::Device, channel: usize) {
            device.pif.ram[device.pif.channels[channel].rx_buf.unwrap()] = 0;
        }
        JCMD_VRU_READ => {
-            let index = if device.vru_window.window_notifier.is_some() {
-                ui::vru::prompt_for_match(
-                    &device.vru.words,
-                    device.vru_window.window_notifier.as_ref().unwrap(),
-                    device.vru_window.word_receiver.as_mut().unwrap(),
-                )
+            let index = if let Some(weak) = &device.ui.weak {
+                ui::vru::prompt_for_match(&device.vru.words, weak, device.vi.frame_time)
            } else {
                0x7FFF
            };
@@ -2726,5 +2714,17 @@ fn create_word_mappings(device: &mut device::Device) {
            String::from("82B582E382C182CF82C282AF82A282A982A2"),
            String::from("restricted-depart"),
        ),
+        (
+            String::from("009903720366006903C903FF0045033C"),
+            String::from("objection"),
+        ),
+        (
+            String::from("041100CF02EE0381004503B7"),
+            String::from("hold-it"),
+        ),
+        (
+            String::from("03BA019203C9036C0087000303C6"),
+            String::from("take-that"),
+        ),
    ]);
 }
@@ -179,6 +179,8 @@ pub fn reserved(device: &mut device::Device, _opcode: u32) {
    device::exceptions::reserved_exception(device, 0);
 }

+pub fn emux_xdetect(_device: &mut device::Device, _opcode: u32) {}
+
 fn get_control_registers(device: &device::Device, index: u32) -> u64 {
    match index {
        COP0_COUNT_REG => device.cpu.cop0.regs[index as usize] >> 1,
@@ -261,38 +263,38 @@ pub fn add_cycles(device: &mut device::Device, cycles: u64) {

 pub fn map_instructions(device: &mut device::Device) {
    device.cpu.cop0.instrs = [
-        device::cop0::mfc0,        // 0
-        device::cop0::dmfc0,       // 1
-        device::cop0::reserved,    // 2
-        device::cop0::reserved,    // 3
-        device::cop0::mtc0,        // 4
-        device::cop0::dmtc0,       // 5
-        device::cop0::reserved,    // 6
-        device::cop0::reserved,    // 7
-        device::cop0::reserved,    // 8
-        device::cop0::reserved,    // 9
-        device::cop0::reserved,    // 10
-        device::cop0::reserved,    // 11
-        device::cop0::reserved,    // 12
-        device::cop0::reserved,    // 13
-        device::cop0::reserved,    // 14
-        device::cop0::reserved,    // 15
-        device::cop0::execute_cp0, // 16
-        device::cop0::reserved,    // 17
-        device::cop0::reserved,    // 18
-        device::cop0::reserved,    // 19
-        device::cop0::reserved,    // 20
-        device::cop0::reserved,    // 21
-        device::cop0::reserved,    // 22
-        device::cop0::reserved,    // 23
-        device::cop0::reserved,    // 24
-        device::cop0::reserved,    // 25
-        device::cop0::reserved,    // 26
-        device::cop0::reserved,    // 27
-        device::cop0::reserved,    // 28
-        device::cop0::reserved,    // 29
-        device::cop0::reserved,    // 30
-        device::cop0::reserved,    // 31
+        device::cop0::mfc0,         // 0
+        device::cop0::dmfc0,        // 1
+        device::cop0::reserved,     // 2
+        device::cop0::reserved,     // 3
+        device::cop0::mtc0,         // 4
+        device::cop0::dmtc0,        // 5
+        device::cop0::reserved,     // 6
+        device::cop0::reserved,     // 7
+        device::cop0::reserved,     // 8
+        device::cop0::reserved,     // 9
+        device::cop0::reserved,     // 10
+        device::cop0::reserved,     // 11
+        device::cop0::reserved,     // 12
+        device::cop0::reserved,     // 13
+        device::cop0::reserved,     // 14
+        device::cop0::reserved,     // 15
+        device::cop0::execute_cp0,  // 16
+        device::cop0::reserved,     // 17
+        device::cop0::reserved,     // 18
+        device::cop0::reserved,     // 19
+        device::cop0::emux_xdetect, // 20
+        device::cop0::reserved,     // 21
+        device::cop0::reserved,     // 22
+        device::cop0::reserved,     // 23
+        device::cop0::reserved,     // 24
+        device::cop0::reserved,     // 25
+        device::cop0::reserved,     // 26
+        device::cop0::reserved,     // 27
+        device::cop0::reserved,     // 28
+        device::cop0::reserved,     // 29
+        device::cop0::reserved,     // 30
+        device::cop0::reserved,     // 31
    ];

    device.cpu.cop0.instrs2 = [
@@ -1,4 +1,4 @@
-use crate::{device, savestates};
+use crate::{device, savestates, ui};

 #[derive(PartialEq, serde::Serialize, serde::Deserialize)]
 pub enum State {
@@ -227,7 +227,10 @@ pub fn init(device: &mut device::Device) {
    device.cpu.clock_rate = if !device.cpu.overclock {
        93750000
    } else {
-        println!("Overclocking enabled, setting clock rate to 125 MHz");
+        ui::video::onscreen_message(
+            &device.ui,
+            "Overclocking enabled, setting clock rate to 125 MHz",
+        );
        125000000
    };

@@ -1,4 +1,5 @@
 use crate::device;
+use crate::ui;

 pub const EVENT_TYPE_NONE: usize = 0;
 pub const EVENT_TYPE_AI: usize = 1;
@@ -12,7 +13,8 @@ pub const EVENT_TYPE_SPDMA: usize = 8;
 pub const EVENT_TYPE_COMPARE: usize = 9;
 pub const EVENT_TYPE_VRU: usize = 10;
 pub const EVENT_TYPE_PAK: usize = 11;
-pub const EVENT_TYPE_COUNT: usize = 12;
+pub const EVENT_TYPE_SAVE: usize = 12;
+pub const EVENT_TYPE_COUNT: usize = 13;

 #[derive(PartialEq, Copy, Clone, serde::Serialize, serde::Deserialize)]
 pub struct Event {
@@ -60,6 +62,7 @@ fn get_event_handler(name: usize) -> fn(&mut device::Device) {
        EVENT_TYPE_COMPARE => device::cop0::compare_event,
        EVENT_TYPE_VRU => device::controller::vru::vru_talking_event,
        EVENT_TYPE_PAK => device::controller::pak_switch_event,
+        EVENT_TYPE_SAVE => ui::storage::save_event,
        _ => dummy_event,
    }
 }
@@ -18,7 +18,6 @@ pub fn check_pending_interrupts(device: &mut device::Device) {
        device.cpu.cop0.regs[device::cop0::COP0_CAUSE_REG as usize] = device::cop0::COP0_CAUSE_IP2;
    } else if device.cpu.cop0.pending_compare_interrupt {
        device.cpu.cop0.regs[device::cop0::COP0_CAUSE_REG as usize] = device::cop0::COP0_CAUSE_IP7;
-        device.cpu.cop0.pending_compare_interrupt = false;
    }

    if (device.cpu.cop0.regs[device::cop0::COP0_STATUS_REG as usize]
@@ -22,8 +22,8 @@ pub fn write_mem(device: &mut device::Device, address: u64, value: u32, mask: u3
        let data = std::str::from_utf8(
            &device.cart.is_viewer_buffer[0x20_usize..(0x20 + length) as usize],
        );
-        if data.is_ok() {
-            print!("{}", data.unwrap());
+        if let Ok(data) = data {
+            print!("{}", data);
        }
    } else {
        let mut data = u32::from_be_bytes(
@@ -62,11 +62,16 @@ pub fn masked_write_64(dst: &mut u64, value: u64, mask: u64) {

 pub fn translate_address(
    device: &mut device::Device,
-    address: u64,
+    mut address: u64,
    access_type: AccessType,
 ) -> (u64, bool, bool) {
    if (address & 0xc0000000) != 0x80000000 {
-        return device::tlb::get_physical_address(device, address, access_type);
+        if (address & 0xFFFFFFFF00000000) == 0x9000000000000000 {
+            // this is a hack to support 64-bit addresses used by some homebrew
+            address |= 0xA0000000;
+        } else {
+            return device::tlb::get_physical_address(device, address, access_type);
+        }
    }
    (address & 0x1FFFFFFF, address & 0x20000000 == 0, false)
 }
@@ -1,6 +1,6 @@
 use crate::device;

-const MI_INIT_MODE_REG: u32 = 0;
+pub const MI_INIT_MODE_REG: u32 = 0;
 const MI_VERSION_REG: u32 = 1;
 pub const MI_INTR_REG: u32 = 2;
 pub const MI_INTR_MASK_REG: u32 = 3;
@@ -29,7 +29,7 @@ const MI_CLR_DP: u32 = 1 << 10;
 const MI_SET_DP: u32 = 1 << 11;

 /* mode read */
-const MI_INIT_MODE: u32 = 1 << 7;
+pub const MI_INIT_MODE: u32 = 1 << 7;
 const MI_EBUS_MODE: u32 = 1 << 8;
 const MI_RDRAM_MODE: u32 = 1 << 9;

@@ -42,7 +42,7 @@ const MI_CLR_DP_INTR: u32 = 1 << 11;
 const MI_CLR_RDRAM: u32 = 1 << 12;
 const MI_SET_RDRAM: u32 = 1 << 13;

-const MI_INIT_LENGTH_MASK: u32 = 0b1111111;
+pub const MI_INIT_LENGTH_MASK: u32 = 0b1111111;

 #[derive(serde::Serialize, serde::Deserialize)]
 pub struct Mi {
@@ -78,9 +78,15 @@ fn update_init_mode(device: &mut device::Device, w: u32) {
    device.mi.regs[MI_INIT_MODE_REG as usize] |= w & MI_INIT_LENGTH_MASK;

    if w & MI_CLR_INIT != 0 {
+        for i in 0..(0x3F00000 >> 16) {
+            device.memory.memory_map_write[i] = device::rdram::write_mem;
+        }
        device.mi.regs[MI_INIT_MODE_REG as usize] &= !MI_INIT_MODE
    }
    if w & MI_SET_INIT != 0 {
+        for i in 0..(0x3F00000 >> 16) {
+            device.memory.memory_map_write[i] = device::rdram::write_mem_repeat;
+        }
        device.mi.regs[MI_INIT_MODE_REG as usize] |= MI_INIT_MODE
    }
    if w & MI_CLR_EBUS != 0 {
@@ -1,4 +1,5 @@
 use crate::device;
+use crate::ui;
 use rand_chacha::rand_core::RngCore;

 const PI_DRAM_ADDR_REG: u32 = 0;
@@ -92,6 +93,9 @@ fn dma_write(device: &mut device::Device) {
        length -= dram_addr & 0x7;
    }

+    // check RDP before PI writes to RDRAM
+    ui::video::check_framebuffers(dram_addr, length);
+
    let cycles = (handler.write)(device, cart_addr, dram_addr, length);

    device::events::create_event(device, device::events::EVENT_TYPE_PI, cycles);
@@ -221,7 +225,11 @@ fn unknown_dma_write(
    dram_addr &= device::rdram::RDRAM_MASK as u32;

    for i in 0..length {
-        device.rdram.mem[(dram_addr + i) as usize ^ device.byte_swap] = 0;
+        *device
+            .rdram
+            .mem
+            .get_mut((dram_addr + i) as usize ^ device.byte_swap)
+            .unwrap_or(&mut 0) = 0;
    }
    device::pi::calculate_cycles(device, 1, length)
 }
@@ -218,11 +218,11 @@ pub fn process_ram(device: &mut device::Device) {

 pub fn connect_pif_channels(device: &mut device::Device) {
    for i in 0..4 {
-        if device.netplay.is_none() {
-            if device.ui.config.input.controller_enabled[i] {
+        if let Some(netplay) = &device.netplay {
+            if netplay.player_data[i].reg_id != 0 {
                device.pif.channels[i].process = Some(device::controller::process);
            }
-        } else if device.netplay.as_ref().unwrap().player_data[i].reg_id != 0 {
+        } else if device.ui.config.input.controller_enabled[i] {
            device.pif.channels[i].process = Some(device::controller::process);
        }
    }
@@ -268,16 +268,16 @@ pub fn init(device: &mut device::Device) {
    connect_pif_channels(device);

    for i in 0..4 {
-        if device.netplay.is_none() {
-            if device.ui.config.input.controller_enabled[i] {
-                if device.transferpaks[i].cart.rom.is_empty() {
-                    device.pif.channels[i].pak_handler = Some(default_handler);
-                } else {
-                    device.pif.channels[i].pak_handler = Some(tpak_handler);
-                }
+        if let Some(netplay) = &device.netplay {
+            if netplay.player_data[i].reg_id != 0 {
+                device.pif.channels[i].pak_handler = Some(default_handler);
+            }
+        } else if device.ui.config.input.controller_enabled[i] {
+            if device.transferpaks[i].cart.rom.is_empty() {
+                device.pif.channels[i].pak_handler = Some(default_handler);
+            } else {
+                device.pif.channels[i].pak_handler = Some(tpak_handler);
            }
-        } else if device.netplay.as_ref().unwrap().player_data[i].reg_id != 0 {
-            device.pif.channels[i].pak_handler = Some(default_handler);
        }
    }
    if device.ui.config.input.emulate_vru && device.netplay.is_none() {
@@ -1,4 +1,5 @@
 use crate::device;
+use crate::ui;
 use std::alloc::{Layout, alloc_zeroed};

 //const RDRAM_CONFIG_REG: u32 = 0;
@@ -29,9 +30,13 @@ pub fn read_mem_fast(
 ) -> u32 {
    let masked_address = address as usize & RDRAM_MASK;
    u32::from_ne_bytes(
-        device.rdram.mem[masked_address..masked_address + 4]
+        device
+            .rdram
+            .mem
+            .get(masked_address..masked_address + 4)
+            .unwrap_or(&[0; 4])
            .try_into()
-            .unwrap(),
+            .unwrap_or_default(),
    )
 }

@@ -45,27 +50,71 @@ pub fn read_mem(
        rdram_calculate_cycles(access_size as u64) / (access_size as u64 / 4),
    );
    let masked_address = address as usize & RDRAM_MASK;
-    if address < device.rdram.size as u64 {
-        u32::from_ne_bytes(
-            device.rdram.mem[masked_address..masked_address + 4]
-                .try_into()
-                .unwrap(),
-        )
-    } else {
-        0
-    }
+
+    ui::video::check_framebuffers(masked_address as u32, 4);
+
+    u32::from_ne_bytes(
+        device
+            .rdram
+            .mem
+            .get(masked_address..masked_address + 4)
+            .unwrap_or(&[0; 4])
+            .try_into()
+            .unwrap_or_default(),
+    )
 }

 pub fn write_mem(device: &mut device::Device, address: u64, value: u32, mask: u32) {
-    if address < device.rdram.size as u64 {
-        let mut data = u32::from_ne_bytes(
-            device.rdram.mem[address as usize..(address + 4) as usize]
-                .try_into()
-                .unwrap(),
+    ui::video::check_framebuffers(address as u32, 4);
+
+    let mut data = u32::from_ne_bytes(
+        device
+            .rdram
+            .mem
+            .get(address as usize..(address + 4) as usize)
+            .unwrap_or(&[0; 4])
+            .try_into()
+            .unwrap_or_default(),
+    );
+    device::memory::masked_write_32(&mut data, value, mask);
+    device
+        .rdram
+        .mem
+        .get_mut(address as usize..(address + 4) as usize)
+        .unwrap_or(&mut [0; 4])
+        .copy_from_slice(&data.to_ne_bytes());
+}
+
+pub fn write_mem_repeat(device: &mut device::Device, address: u64, value: u32, mask: u32) {
+    if mask != 0xFFFFFFFF {
+        panic!("RDRAM write_mem_repeat called with mask {:#x}", mask);
+    }
+
+    let repeat_length = (device.mi.regs[device::mi::MI_INIT_MODE_REG as usize]
+        & device::mi::MI_INIT_LENGTH_MASK)
+        + 1;
+
+    if !repeat_length.is_multiple_of(4) {
+        panic!(
+            "RDRAM write_mem_repeat called with non-word-aligned length {}",
+            repeat_length
        );
-        device::memory::masked_write_32(&mut data, value, mask);
-        device.rdram.mem[address as usize..(address + 4) as usize]
-            .copy_from_slice(&data.to_ne_bytes());
+    }
+
+    ui::video::check_framebuffers(address as u32, repeat_length);
+
+    for i in (0..repeat_length as u64).step_by(4) {
+        device
+            .rdram
+            .mem
+            .get_mut((address + i) as usize..(address + i) as usize + 4)
+            .unwrap_or(&mut [0; 4])
+            .copy_from_slice(&value.to_ne_bytes());
+    }
+
+    device.mi.regs[device::mi::MI_INIT_MODE_REG as usize] &= !device::mi::MI_INIT_MODE;
+    for i in 0..(0x3F00000 >> 16) {
+        device.memory.memory_map_write[i] = device::rdram::write_mem;
    }
 }

@@ -103,9 +152,19 @@ pub fn init(device: &mut device::Device) {
        unsafe { Vec::from_raw_parts(ptr, device.rdram.size as usize, device.rdram.size as usize) };

    // hack, skip RDRAM initialization
-    device.rdram.mem[0x318..0x318 + 4].copy_from_slice(&device.rdram.size.to_ne_bytes());
+    device
+        .rdram
+        .mem
+        .get_mut(0x318..0x318 + 4)
+        .unwrap_or(&mut [0; 4])
+        .copy_from_slice(&device.rdram.size.to_ne_bytes());
    // hack, skip RDRAM initialization
-    device.rdram.mem[0x3f0..0x3f0 + 4].copy_from_slice(&device.rdram.size.to_ne_bytes());
+    device
+        .rdram
+        .mem
+        .get_mut(0x3f0..0x3f0 + 4)
+        .unwrap_or(&mut [0; 4])
+        .copy_from_slice(&device.rdram.size.to_ne_bytes());

    device.ri.regs[device::ri::RI_MODE_REG as usize] = 0x0e;
    device.ri.regs[device::ri::RI_CONFIG_REG as usize] = 0x40;
@@ -1,4 +1,5 @@
 use crate::device;
+use crate::ui;

 const SP_MEM_ADDR_REG: u32 = 0;
 const SP_DRAM_ADDR_REG: u32 = 1;
@@ -146,6 +147,7 @@ fn do_dma(device: &mut device::Device, dma: RspDma) {
    let mut dram_addr = dma.dramaddr & 0xfffff8;
    let offset = dma.memaddr & 0x1000;

+    ui::video::check_framebuffers(dram_addr, count * (length + skip) - skip);
    if dma.dir == DmaDir::Read {
        let mut j = 0;
        while j < count {
@@ -157,7 +159,11 @@ fn do_dma(device: &mut device::Device, dma: RspDma) {
                        .try_into()
                        .unwrap(),
                );
-                device.rdram.mem[dram_addr as usize..dram_addr as usize + 4]
+                device
+                    .rdram
+                    .mem
+                    .get_mut(dram_addr as usize..dram_addr as usize + 4)
+                    .unwrap_or(&mut [0; 4])
                    .copy_from_slice(&data.to_ne_bytes());
                mem_addr += 4;
                dram_addr += 4;
@@ -171,14 +177,16 @@ fn do_dma(device: &mut device::Device, dma: RspDma) {
        while j < count {
            let mut i = 0;
            while i < length {
-                let mut data = 0;
-                if dram_addr < device.rdram.size {
-                    data = u32::from_ne_bytes(
-                        device.rdram.mem[dram_addr as usize..dram_addr as usize + 4]
-                            .try_into()
-                            .unwrap(),
-                    );
-                }
+                let data = u32::from_ne_bytes(
+                    device
+                        .rdram
+                        .mem
+                        .get(dram_addr as usize..dram_addr as usize + 4)
+                        .unwrap_or(&[0; 4])
+                        .try_into()
+                        .unwrap_or_default(),
+                );
+
                if offset != 0 {
                    // imem being updated
                    device.rsp.cpu.instructions[((mem_addr & 0xFFF) / 4) as usize].func =
@@ -213,6 +221,8 @@ fn fifo_push(device: &mut device::Device, dir: DmaDir) {
        panic!("RSP DMA already full")
    }

+    device.rsp.cpu.sync_point = true;
+
    if device.rsp.regs[SP_DMA_BUSY_REG as usize] != 0 {
        device.rsp.fifo[1].dir = dir;
        if dir == DmaDir::Read {
@@ -270,21 +280,20 @@ pub fn read_regs(
    }
    let reg = (address & 0xFFFF) >> 2;
    match reg as u32 {
-        SP_DMA_BUSY_REG | SP_DMA_FULL_REG => {
-            if device.rsp.regs[reg as usize] != 0 {
-                device.rsp.cpu.sync_point = true;
-            }
-            device.rsp.regs[reg as usize]
-        }
        SP_STATUS_REG => {
            let value = device.rsp.regs[reg as usize]
-                & !(SP_STATUS_HALT | SP_STATUS_BROKE | SP_STATUS_INTR_BREAK);
+                & (SP_STATUS_SIG0
+                    | SP_STATUS_SIG1
+                    | SP_STATUS_SIG2
+                    | SP_STATUS_SIG3
+                    | SP_STATUS_SIG4
+                    | SP_STATUS_SIG5
+                    | SP_STATUS_SIG6
+                    | SP_STATUS_SIG7);
            if value == device.rsp.last_status_value && value != 0 {
                device.rsp.cpu.sync_point = true;
            }
-            if value & (SP_STATUS_DMA_BUSY | SP_STATUS_DMA_FULL) != 0 {
-                device.rsp.cpu.sync_point = true;
-            }
+
            device.rsp.last_status_value = value;
            device.rsp.regs[reg as usize]
        }
@@ -458,6 +467,7 @@ fn update_sp_status(device: &mut device::Device, w: u32) {
 fn do_task(device: &mut device::Device) {
    device.rsp.cpu.sync_point = false;
    device.rsp.last_status_value = 0;
+    device.rdp.last_status_value = 0;
    if device.rsp.regs[SP_DMA_BUSY_REG as usize] == 1 {
        device.rsp.run_after_dma = true
    } else {
@@ -304,25 +304,44 @@ pub fn lh(device: &mut device::Device, opcode: u32) {
    let address =
        device.rsp.cpu.gpr[rs(opcode) as usize].wrapping_add(imm(opcode) as i16 as i32 as u32);

-    let mut w = [0; 2];
-    w[0] = device.rsp.mem[address as usize & 0xFFF];
-    w[1] = device.rsp.mem[(address as usize + 1) & 0xFFF];
+    // Optimize for aligned access when possible
+    let addr_masked = address as usize & 0xFFF;
+    let value = if addr_masked <= 0xFFE {
+        u16::from_be_bytes(
+            device.rsp.mem[addr_masked..addr_masked + 2]
+                .try_into()
+                .unwrap(),
+        )
+    } else {
+        let w0 = device.rsp.mem[addr_masked];
+        let w1 = device.rsp.mem[(addr_masked + 1) & 0xFFF];
+        ((w0 as u16) << 8) | w1 as u16
+    };

-    device.rsp.cpu.gpr[rt(opcode) as usize] =
-        (((w[0] as u16) << 8) | w[1] as u16) as i16 as i32 as u32
+    device.rsp.cpu.gpr[rt(opcode) as usize] = value as i16 as i32 as u32;
 }

 pub fn lw(device: &mut device::Device, opcode: u32) {
    let address =
        device.rsp.cpu.gpr[rs(opcode) as usize].wrapping_add(imm(opcode) as i16 as i32 as u32);

-    let mut w = [0; 4];
-    for (i, item) in w.iter_mut().enumerate() {
-        *item = device.rsp.mem[(address as usize + i) & 0xFFF];
-    }
+    // Optimize for aligned access when possible
+    let addr_masked = address as usize & 0xFFF;
+    let value = if addr_masked <= 0xFFC {
+        u32::from_be_bytes(
+            device.rsp.mem[addr_masked..addr_masked + 4]
+                .try_into()
+                .unwrap(),
+        )
+    } else {
+        let mut value = 0;
+        for i in 0..4 {
+            value |= (device.rsp.mem[(addr_masked + i) & 0xFFF] as u32) << (8 * (3 - i));
+        }
+        value
+    };

-    device.rsp.cpu.gpr[rt(opcode) as usize] =
-        ((w[0] as u32) << 24) | ((w[1] as u32) << 16) | ((w[2] as u32) << 8) | (w[3] as u32)
+    device.rsp.cpu.gpr[rt(opcode) as usize] = value;
 }

 pub fn lbu(device: &mut device::Device, opcode: u32) {
@@ -336,24 +355,44 @@ pub fn lhu(device: &mut device::Device, opcode: u32) {
    let address =
        device.rsp.cpu.gpr[rs(opcode) as usize].wrapping_add(imm(opcode) as i16 as i32 as u32);

-    let mut w = [0; 2];
-    w[0] = device.rsp.mem[address as usize & 0xFFF];
-    w[1] = device.rsp.mem[(address as usize + 1) & 0xFFF];
+    // Optimize for aligned access when possible
+    let addr_masked = address as usize & 0xFFF;
+    let value = if addr_masked <= 0xFFE {
+        u16::from_be_bytes(
+            device.rsp.mem[addr_masked..addr_masked + 2]
+                .try_into()
+                .unwrap(),
+        )
+    } else {
+        let w0 = device.rsp.mem[addr_masked];
+        let w1 = device.rsp.mem[(addr_masked + 1) & 0xFFF];
+        ((w0 as u16) << 8) | w1 as u16
+    };

-    device.rsp.cpu.gpr[rt(opcode) as usize] = (((w[0] as u16) << 8) | w[1] as u16) as u32
+    device.rsp.cpu.gpr[rt(opcode) as usize] = value as u32;
 }

 pub fn lwu(device: &mut device::Device, opcode: u32) {
    let address =
        device.rsp.cpu.gpr[rs(opcode) as usize].wrapping_add(imm(opcode) as i16 as i32 as u32);

-    let mut w = [0; 4];
-    for (i, item) in w.iter_mut().enumerate() {
-        *item = device.rsp.mem[(address as usize + i) & 0xFFF];
-    }
+    // Optimize for aligned access when possible
+    let addr_masked = address as usize & 0xFFF;
+    let value = if addr_masked <= 0xFFC {
+        u32::from_be_bytes(
+            device.rsp.mem[addr_masked..addr_masked + 4]
+                .try_into()
+                .unwrap(),
+        )
+    } else {
+        let mut value = 0;
+        for i in 0..4 {
+            value |= (device.rsp.mem[(addr_masked + i) & 0xFFF] as u32) << (8 * (3 - i));
+        }
+        value
+    };

-    device.rsp.cpu.gpr[rt(opcode) as usize] =
-        ((w[0] as u32) << 24) | ((w[1] as u32) << 16) | ((w[2] as u32) << 8) | (w[3] as u32)
+    device.rsp.cpu.gpr[rt(opcode) as usize] = value;
 }

 pub fn sb(device: &mut device::Device, opcode: u32) {
@@ -367,18 +406,30 @@ pub fn sh(device: &mut device::Device, opcode: u32) {
    let address =
        device.rsp.cpu.gpr[rs(opcode) as usize].wrapping_add(imm(opcode) as i16 as i32 as u32);

-    device.rsp.mem[address as usize & 0xFFF] = (device.rsp.cpu.gpr[rt(opcode) as usize] >> 8) as u8;
-    device.rsp.mem[(address as usize + 1) & 0xFFF] =
-        (device.rsp.cpu.gpr[rt(opcode) as usize]) as u8;
+    let addr_masked = address as usize & 0xFFF;
+    let value = device.rsp.cpu.gpr[rt(opcode) as usize] as u16;
+    // Optimize for aligned access when possible
+    if addr_masked <= 0xFFE {
+        device.rsp.mem[addr_masked..addr_masked + 2].copy_from_slice(&value.to_be_bytes());
+    } else {
+        device.rsp.mem[addr_masked] = (value >> 8) as u8;
+        device.rsp.mem[(addr_masked + 1) & 0xFFF] = value as u8;
+    }
 }

 pub fn sw(device: &mut device::Device, opcode: u32) {
    let address =
        device.rsp.cpu.gpr[rs(opcode) as usize].wrapping_add(imm(opcode) as i16 as i32 as u32);

-    for i in 0..4 {
-        device.rsp.mem[(address as usize + i) & 0xFFF] =
-            (device.rsp.cpu.gpr[rt(opcode) as usize] >> ((3 - i) * 8)) as u8;
+    let addr_masked = address as usize & 0xFFF;
+    let value = device.rsp.cpu.gpr[rt(opcode) as usize];
+    // Optimize for aligned access when possible
+    if addr_masked <= 0xFFC {
+        device.rsp.mem[addr_masked..addr_masked + 4].copy_from_slice(&value.to_be_bytes());
+    } else {
+        for i in 0..4 {
+            device.rsp.mem[(addr_masked + i) & 0xFFF] = (value >> ((3 - i) * 8)) as u8;
+        }
    }
 }

@@ -709,7 +760,7 @@ pub fn lsv(device: &mut device::Device, opcode: u32) {

    let mut element = velement(opcode);

-    if element % 2 == 0 {
+    if element.is_multiple_of(2) {
        modify_vpr16(
            &mut device.rsp.cpu.vpr[rt(opcode) as usize],
            element / 2,
@@ -736,11 +787,22 @@ pub fn llv(device: &mut device::Device, opcode: u32) {

    let mut element = velement(opcode);

-    if element % 4 == 0 {
-        let mut value = 0;
-        for i in 0..4 {
-            value |= (device.rsp.mem[((address + i) & 0xFFF) as usize] as u32) << (8 * (3 - i));
-        }
+    if element.is_multiple_of(4) {
+        // Optimize for aligned access when possible
+        let addr_masked = address as usize & 0xFFF;
+        let value = if addr_masked <= 0xFFC {
+            u32::from_be_bytes(
+                device.rsp.mem[addr_masked..addr_masked + 4]
+                    .try_into()
+                    .unwrap(),
+            )
+        } else {
+            let mut value = 0;
+            for i in 0..4 {
+                value |= (device.rsp.mem[(addr_masked + i) & 0xFFF] as u32) << (8 * (3 - i));
+            }
+            value
+        };
        modify_vpr32(
            &mut device.rsp.cpu.vpr[rt(opcode) as usize],
            element / 4,
@@ -766,11 +828,22 @@ pub fn ldv(device: &mut device::Device, opcode: u32) {

    let mut element = velement(opcode);

-    if element % 8 == 0 {
-        let mut value = 0;
-        for i in 0..8 {
-            value |= (device.rsp.mem[((address + i) & 0xFFF) as usize] as u64) << (8 * (7 - i));
-        }
+    if element.is_multiple_of(8) {
+        // Optimize for aligned access when possible
+        let addr_masked = address as usize & 0xFFF;
+        let value = if addr_masked <= 0xFF8 {
+            u64::from_be_bytes(
+                device.rsp.mem[addr_masked..addr_masked + 8]
+                    .try_into()
+                    .unwrap(),
+            )
+        } else {
+            let mut value = 0;
+            for i in 0..8 {
+                value |= (device.rsp.mem[(addr_masked + i) & 0xFFF] as u64) << (8 * (7 - i));
+            }
+            value
+        };
        modify_vpr64(
            &mut device.rsp.cpu.vpr[rt(opcode) as usize],
            element / 8,
@@ -796,11 +869,22 @@ pub fn lqv(device: &mut device::Device, opcode: u32) {

    let mut element = velement(opcode);

-    if element == 0 && address % 16 == 0 {
-        let mut value = 0;
-        for i in 0..16 {
-            value |= (device.rsp.mem[((address + i) & 0xFFF) as usize] as u128) << (8 * (15 - i));
-        }
+    if element == 0 && address.is_multiple_of(16) {
+        // Optimize for aligned 16-byte access
+        let addr_masked = address as usize & 0xFFF;
+        let value = if addr_masked <= 0xFF0 {
+            u128::from_be_bytes(
+                device.rsp.mem[addr_masked..addr_masked + 16]
+                    .try_into()
+                    .unwrap(),
+            )
+        } else {
+            let mut value = 0;
+            for i in 0..16 {
+                value |= (device.rsp.mem[(addr_masked + i) & 0xFFF] as u128) << (8 * (15 - i));
+            }
+            value
+        };
        modify_vpr128(&mut device.rsp.cpu.vpr[rt(opcode) as usize], value);
    } else {
        let end = std::cmp::min(16 + element - ((address & 15) as u8), 16);
@@ -823,10 +907,21 @@ pub fn lrv(device: &mut device::Device, opcode: u32) {
    let mut element = 16u8.wrapping_sub(((address & 15) as u8).wrapping_sub(velement(opcode)));
    address &= !15;
    if element == 0 {
-        let mut value = 0;
-        for i in 0..16 {
-            value |= (device.rsp.mem[((address + i) & 0xFFF) as usize] as u128) << (8 * (15 - i));
-        }
+        // Optimize for aligned 16-byte access
+        let addr_masked = address as usize & 0xFFF;
+        let value = if addr_masked <= 0xFF0 {
+            u128::from_be_bytes(
+                device.rsp.mem[addr_masked..addr_masked + 16]
+                    .try_into()
+                    .unwrap(),
+            )
+        } else {
+            let mut value = 0;
+            for i in 0..16 {
+                value |= (device.rsp.mem[(addr_masked + i) & 0xFFF] as u128) << (8 * (15 - i));
+            }
+            value
+        };
        modify_vpr128(&mut device.rsp.cpu.vpr[rt(opcode) as usize], value);
    } else {
        while element < 16 {
@@ -975,7 +1070,7 @@ pub fn ssv(device: &mut device::Device, opcode: u32) {

    let mut element = velement(opcode);

-    if element % 2 == 0 {
+    if element.is_multiple_of(2) {
        let start = (address & 0xFFF) as usize;
        device.rsp.mem[start..start + 2].copy_from_slice(
            &get_vpr16(device.rsp.cpu.vpr[rt(opcode) as usize], element / 2).to_be_bytes(),
@@ -997,7 +1092,7 @@ pub fn slv(device: &mut device::Device, opcode: u32) {

    let mut element = velement(opcode);

-    if element % 4 == 0 {
+    if element.is_multiple_of(4) {
        let start = (address & 0xFFF) as usize;
        device.rsp.mem[start..start + 4].copy_from_slice(
            &get_vpr32(device.rsp.cpu.vpr[rt(opcode) as usize], element / 4).to_be_bytes(),
@@ -1019,7 +1114,7 @@ pub fn sdv(device: &mut device::Device, opcode: u32) {

    let mut element = velement(opcode);

-    if element % 8 == 0 {
+    if element.is_multiple_of(8) {
        let start = (address & 0xFFF) as usize;
        device.rsp.mem[start..start + 8].copy_from_slice(
            &get_vpr64(device.rsp.cpu.vpr[rt(opcode) as usize], element / 8).to_be_bytes(),
@@ -1041,7 +1136,7 @@ pub fn sqv(device: &mut device::Device, opcode: u32) {

    let mut element = velement(opcode);

-    if element == 0 && address % 16 == 0 {
+    if element == 0 && address.is_multiple_of(16) {
        let start = (address & 0xFFF) as usize;
        device.rsp.mem[start..start + 16]
            .copy_from_slice(&get_vpr128(device.rsp.cpu.vpr[rt(opcode) as usize]).to_be_bytes());
@@ -1,6 +1,7 @@
 use rand_chacha::rand_core::RngCore;

 use crate::device;
+use crate::ui;

 const SI_DRAM_ADDR_REG: u32 = 0;
 const SI_PIF_ADDR_RD64B_REG: u32 = 1;
@@ -86,18 +87,29 @@ fn copy_pif_rdram(device: &mut device::Device) {
        let mut i = 0;
        while i < device::pif::PIF_RAM_SIZE {
            let data = u32::from_ne_bytes(
-                device.rdram.mem[dram_addr + i..dram_addr + i + 4]
+                device
+                    .rdram
+                    .mem
+                    .get(dram_addr + i..dram_addr + i + 4)
+                    .unwrap_or(&[0; 4])
                    .try_into()
-                    .unwrap(),
+                    .unwrap_or_default(),
            );
            device.pif.ram[i..i + 4].copy_from_slice(&data.to_be_bytes());
            i += 4;
        }
    } else if device.si.dma_dir == DmaDir::Read {
+        // check RDP before SI writes to RDRAM
+        ui::video::check_framebuffers(dram_addr as u32, device::pif::PIF_RAM_SIZE as u32);
        let mut i = 0;
        while i < device::pif::PIF_RAM_SIZE {
            let data = u32::from_be_bytes(device.pif.ram[i..i + 4].try_into().unwrap());
-            device.rdram.mem[dram_addr + i..dram_addr + i + 4].copy_from_slice(&data.to_ne_bytes());
+            device
+                .rdram
+                .mem
+                .get_mut(dram_addr + i..dram_addr + i + 4)
+                .unwrap_or(&mut [0; 4])
+                .copy_from_slice(&data.to_ne_bytes());
            i += 4;
        }
    } else {
@@ -1,4 +1,4 @@
-use crate::{device, netplay, ui};
+use crate::{cheats, device, netplay, ui};
 use governor::clock::Clock;

 const VI_STATUS_REG: u32 = 0;
@@ -70,10 +70,9 @@ fn set_vertical_interrupt(device: &mut device::Device) {
 }

 fn set_current_line(device: &mut device::Device) {
-    let delay = device.vi.delay;
    let next_vi = device::events::get_event(device, device::events::EVENT_TYPE_VI);
    if let Some(next_vi) = next_vi {
-        device.vi.regs[VI_CURRENT_REG as usize] = ((delay
+        device.vi.regs[VI_CURRENT_REG as usize] = ((device.vi.delay
            - (next_vi.count - device.cpu.cop0.regs[device::cop0::COP0_COUNT_REG as usize]))
            / device.vi.count_per_scanline)
            as u32;
@@ -134,18 +133,34 @@ pub fn write_regs(device: &mut device::Device, address: u64, value: u32, mask: u
 }

 pub fn vertical_interrupt_event(device: &mut device::Device) {
-    ui::video::check_callback(device);
-
-    if device.netplay.is_some() {
-        netplay::send_sync_check(device);
-        device.vi.enable_speed_limiter = !device.netplay.as_ref().unwrap().fast_forward;
+    if device.cheats.enabled {
+        cheats::execute_cheats(device, device.cheats.cheats.clone());
    }

-    device.vi.vi_counter += 1;
-    if device.vi.vi_counter % device.vi.limit_freq == 0 && device.vi.enable_speed_limiter {
-        speed_limiter(device);
+    ui::video::render_frame();
+
+    let (mut speed_limiter_toggled, paused) = ui::video::check_callback(device);
+
+    if let Some(netplay) = &mut device.netplay {
+        netplay::send_sync_check(netplay, device.cpu.cop0.regs.as_ref());
+        if device.vi.enable_speed_limiter == netplay.fast_forward {
+            speed_limiter_toggled = true;
+            device.vi.enable_speed_limiter = !netplay.fast_forward;
+        }
    }
+
+    if device.vi.vi_counter.is_multiple_of(device.vi.limit_freq) && device.vi.enable_speed_limiter {
+        speed_limiter(device, speed_limiter_toggled);
+    }
+
    ui::video::update_screen();
+    device.vi.vi_counter += 1;
+
+    if device.netplay.is_none() && paused {
+        ui::video::pause_loop(device.vi.frame_time);
+    }
+
+    unsafe { sdl3_sys::events::SDL_PumpEvents() };

    /*
    let vis = if device.cart.pal { 50 } else { 60 };
@@ -175,9 +190,8 @@ pub fn init(device: &mut device::Device) {
    }
 }

-fn speed_limiter(device: &mut device::Device) {
-    let result = device.vi.limiter.as_ref().unwrap().check();
-    if let Err(outcome) = result {
+fn speed_limiter(device: &mut device::Device, speed_limiter_toggled: bool) {
+    if let Err(outcome) = device.vi.limiter.as_ref().unwrap().check() {
        let dur = outcome.wait_time_from(governor::clock::DefaultClock::default().now());
        spin_sleep::sleep(dur);
        if dur < device.vi.min_wait_time {
@@ -194,14 +208,17 @@ fn speed_limiter(device: &mut device::Device) {
        .as_secs_f64()
        > 1.0
    {
-        if device.vi.min_wait_time.as_secs_f64() == 0.0 && device.vi.limit_freq < MAX_LIMIT_FREQ {
-            device.vi.limit_freq += 1;
-            create_limiter(device);
-        } else if device.vi.min_wait_time.as_secs_f64() > device.vi.frame_time
-            && device.vi.limit_freq > 1
-        {
-            device.vi.limit_freq -= 1;
-            create_limiter(device);
+        if !speed_limiter_toggled {
+            if device.vi.min_wait_time.as_secs_f64() == 0.0 && device.vi.limit_freq < MAX_LIMIT_FREQ
+            {
+                device.vi.limit_freq += 1;
+                create_limiter(device);
+            } else if device.vi.min_wait_time.as_secs_f64() > device.vi.frame_time
+                && device.vi.limit_freq > 1
+            {
+                device.vi.limit_freq -= 1;
+                create_limiter(device);
+            }
        }

        //println!("limit freq: {}", device.vi.limit_freq);
@@ -3,11 +3,13 @@
 #[global_allocator]
 static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;

+mod cheats;
 mod device;
 mod netplay;
 mod savestates;
 mod ui;
 use clap::Parser;
+use std::io::Error;
 use ui::gui;

 /// N64 emulator
@@ -21,15 +23,22 @@ struct Args {
        short,
        long,
        value_name = "PROFILE_NAME",
-        help = "Create a new input profile (keyboard/gamepad mappings)."
+        help = "Create a new input profile (keyboard/gamepad mappings)"
    )]
    configure_input_profile: Option<String>,
    #[arg(
        short,
        long,
-        help = "Use DirectInput when configuring a new input profile."
+        help = "Use DirectInput when configuring a new input profile"
    )]
    use_dinput: bool,
+    #[arg(
+        short,
+        long,
+        value_name = "DEADZONE_PERCENTAGE",
+        help = "Used along with --configure-input-profile to set the deadzone for analog sticks"
+    )]
+    deadzone: Option<i32>,
    #[arg(
        short,
        long,
@@ -65,98 +74,97 @@ struct Args {
    clear_input_bindings: bool,
 }

-#[tokio::main]
-async fn main() {
+fn main() -> std::io::Result<()> {
+    let runtime = tokio::runtime::Builder::new_multi_thread()
+        .enable_all()
+        .worker_threads(4)
+        .thread_name("n64")
+        .thread_stack_size(env!("N64_STACK_SIZE").parse().unwrap())
+        .build()
+        .unwrap();
+
    let dirs = ui::get_dirs();

-    let mut result = std::fs::create_dir_all(dirs.config_dir);
-    if result.is_err() {
-        panic!("could not create config dir: {}", result.err().unwrap())
-    }
-    result = std::fs::create_dir_all(dirs.data_dir.join("saves"));
-    if result.is_err() {
-        panic!("could not create save dir: {}", result.err().unwrap())
-    }
-    result = std::fs::create_dir_all(dirs.data_dir.join("states"));
-    if result.is_err() {
-        panic!("could not create state dir: {}", result.err().unwrap())
-    }
-
+    std::fs::create_dir_all(dirs.config_dir)?;
+    std::fs::create_dir_all(dirs.data_dir.join("saves"))?;
+    std::fs::create_dir_all(dirs.data_dir.join("states"))?;
    let args = Args::parse();
-    let args_as_strings: Vec<String> = std::env::args().collect();
-    let args_count = args_as_strings.len();
-    if args_count > 1 && args.game.is_none() {
+    if let Some(game) = args.game {
+        let file_path = std::path::Path::new(&game);
+        let Some(rom_contents) = device::get_rom_contents(file_path) else {
+            return Err(Error::other(format!(
+                "Could not read ROM file: {}",
+                file_path.display()
+            )));
+        };
+
+        let handle = runtime.spawn(async move {
+            let mut device = device::Device::new();
+            let overclock = device.ui.config.emulation.overclock;
+            let disable_expansion_pak = device.ui.config.emulation.disable_expansion_pak;
+
+            let game_cheats = {
+                let game_crc = ui::storage::get_game_crc(&rom_contents);
+                let cheats = ui::config::Cheats::new();
+                cheats.cheats.get(&game_crc).cloned().unwrap_or_default()
+            };
+            device::run_game(
+                &mut device,
+                rom_contents,
+                ui::gui::GameSettings {
+                    fullscreen: args.fullscreen,
+                    overclock,
+                    disable_expansion_pak,
+                    cheats: game_cheats,
+                },
+            );
+        });
+        runtime.block_on(handle).unwrap()
+    } else if std::env::args().count() > 1 {
        let mut ui = ui::Ui::new();

        if args.clear_input_bindings {
            ui::input::clear_bindings(&mut ui);
-            return;
+            return Ok(());
        }
-        if args.port.is_some() {
-            let port = args.port.unwrap();
-            if !(1..=4).contains(&port) {
-                println!("Port must be betwen 1 and 4");
-                return;
-            }
+        if let Some(port) = args.port
+            && !(1..=4).contains(&port)
+        {
+            return Err(Error::other("Port must be between 1 and 4"));
        }
        if args.list_controllers {
            let controllers = ui::input::get_controller_names(&ui);
            for (i, controller) in controllers.iter().enumerate() {
                println!("Controller {i}: {controller}");
            }
-            return;
+            return Ok(());
        }
-        if args.assign_controller.is_some() {
-            if args.port.is_none() {
-                println!("Must specify port number");
-                return;
-            }
-            ui::input::assign_controller(
-                &mut ui,
-                args.assign_controller.unwrap(),
-                args.port.unwrap(),
-            );
-            return;
-        }
-        if args.bind_input_profile.is_some() {
-            if args.port.is_none() {
-                println!("Must specify port number");
-                return;
-            }
-            ui::input::bind_input_profile(
-                &mut ui,
-                args.bind_input_profile.unwrap(),
-                args.port.unwrap(),
-            );
-            return;
-        }
-        if args.configure_input_profile.is_some() {
+        if let Some(profile) = args.configure_input_profile {
            ui::input::configure_input_profile(
                &mut ui,
-                args.configure_input_profile.unwrap(),
+                profile,
                args.use_dinput,
+                args.deadzone.unwrap_or(ui::input::DEADZONE_DEFAULT),
            );
-            return;
+            return Ok(());
        }
-    } else if args.game.is_some() {
-        let file_path = std::path::Path::new(args.game.as_ref().unwrap());
-        if let Some(rom_contents) = device::get_rom_contents(file_path) {
-            let handle = std::thread::Builder::new()
-                .name("n64".to_string())
-                .stack_size(env!("N64_STACK_SIZE").parse().unwrap())
-                .spawn(move || {
-                    let mut device = device::Device::new();
-                    let overclock = device.ui.config.emulation.overclock;
-                    device::run_game(&mut device, rom_contents, args.fullscreen, overclock);
-                })
-                .unwrap();
-
-            handle.join().unwrap();
-        } else {
-            println!("Could not read rom file");
-            return;
+        if let Some(assign_controller) = args.assign_controller {
+            let Some(port) = args.port else {
+                return Err(Error::other("Must specify port number"));
+            };
+            ui::input::assign_controller(&mut ui, assign_controller, port);
+        }
+        if let Some(profile) = args.bind_input_profile {
+            let Some(port) = args.port else {
+                return Err(Error::other("Must specify port number"));
+            };
+            ui::input::bind_input_profile(&mut ui, profile, port);
        }
    } else {
-        gui::app_window();
+        runtime.block_on(async {
+            gui::app_window();
+        });
    }
+    runtime.shutdown_timeout(std::time::Duration::from_secs(1));
+    Ok(())
 }
@@ -46,14 +46,6 @@ struct InputEvent {
    plugin: u8,
 }

-pub const NETPLAY_ERROR_DESYNC: u32 = 0;
-pub const NETPLAY_ERROR_LOST_CONNECTION: u32 = 1;
-pub const NETPLAY_ERROR_PLAYER_DISCONNECTED: u32 = 2;
-pub const NETPLAY_ERROR_PLAYER_1_DISCONNECTED: u32 = 3;
-pub const NETPLAY_ERROR_PLAYER_2_DISCONNECTED: u32 = 4;
-pub const NETPLAY_ERROR_PLAYER_3_DISCONNECTED: u32 = 5;
-pub const NETPLAY_ERROR_PLAYER_4_DISCONNECTED: u32 = 6;
-
 pub fn send_rtc(netplay: &mut Netplay, rtc: i64) {
    let mut request: Vec<u8> = [TCP_SEND_RTC].to_vec();
    let size: u32 = 8;
@@ -111,14 +103,13 @@ pub fn receive_save(netplay: &mut Netplay, save_type: &str, save_data: &mut Vec<
    *save_data = response;
 }

-pub fn send_sync_check(device: &mut device::Device) {
-    let netplay = device.netplay.as_mut().unwrap();
-    if netplay.vi_counter % 600 == 0 {
+pub fn send_sync_check(netplay: &mut Netplay, regs: &[u64]) {
+    if netplay.vi_counter.is_multiple_of(600) {
        let mut request: Vec<u8> = [UDP_SYNC_DATA].to_vec();
        request.extend_from_slice(&(netplay.vi_counter).to_be_bytes());

-        for i in 0..device::cop0::COP0_REGS_COUNT as usize {
-            request.extend_from_slice(&(device.cpu.cop0.regs[i] as u32).to_be_bytes());
+        for item in regs.iter() {
+            request.extend_from_slice(&(*item as u32).to_be_bytes());
        }

        netplay.udp_socket.send(&request).unwrap();
@@ -155,7 +146,7 @@ pub fn get_input(device: &mut device::Device, channel: usize) -> ui::input::Inpu
            .remove(&netplay.player_data[channel].count);

        if std::time::Instant::now() > timeout {
-            ui::audio::play_netplay_audio(&device.ui, NETPLAY_ERROR_LOST_CONNECTION);
+            ui::video::onscreen_message(&device.ui, "Lost connection to netplay server");
            input = Some(InputEvent {
                input: 0,
                plugin: 0,
@@ -200,15 +191,13 @@ fn process_incoming(netplay: &mut Netplay, ui: &ui::Ui) {
                }
                if current_status != netplay.status {
                    if ((current_status & 0x1) ^ (netplay.status & 0x1)) != 0 {
-                        ui::audio::play_netplay_audio(ui, NETPLAY_ERROR_DESYNC);
+                        ui::video::onscreen_message(ui, "Netplay desync detected");
+                        ui::video::onscreen_message(ui, "Netplay desync detected"); // queue this message twice to ensure they see it
                    }
                    for dis in 1..5 {
                        if ((current_status & (0x1 << dis)) ^ (netplay.status & (0x1 << dis))) != 0
                        {
-                            ui::audio::play_netplay_audio(
-                                ui,
-                                NETPLAY_ERROR_PLAYER_DISCONNECTED + dis,
-                            );
+                            ui::video::onscreen_message(ui, &format!("Player {dis} disconnected"));
                        }
                    }
                    netplay.status = current_status;
@@ -252,7 +241,7 @@ pub fn init(peer_addr: std::net::SocketAddr, player_number: u8) -> Netplay {
        udp_socket = std::net::UdpSocket::bind((std::net::Ipv4Addr::UNSPECIFIED, 0))
            .expect("couldn't bind to address");
        socket2::SockRef::from(&udp_socket)
-            .set_tos(CS4 << 2)
+            .set_tos_v4(CS4 << 2)
            .unwrap();
    } else {
        udp_socket = std::net::UdpSocket::bind((std::net::Ipv6Addr::UNSPECIFIED, 0))
@@ -87,9 +87,12 @@ pub fn create_savestate(device: &device::Device) {
        compressed_file,
    )
    .unwrap();
-    println!(
-        "Savestate created at {}",
-        device.ui.storage.paths.savestate_file_path.display()
+    ui::video::onscreen_message(
+        &device.ui,
+        &format!(
+            "Savestate created in slot {}",
+            device.ui.storage.save_state_slot
+        ),
    );
 }

@@ -120,6 +123,7 @@ pub fn load_savestate(device: &mut device::Device) {
            device.si = state.si;
            device.ri = state.ri;
            device.vru = state.vru;
+            device.cheats = state.cheats;

            let mut tpak_rom = [vec![], vec![], vec![], vec![]];
            for (i, item) in tpak_rom.iter_mut().enumerate() {
@@ -191,15 +195,24 @@ pub fn load_savestate(device: &mut device::Device) {
                }
            }

-            ui::audio::close(&mut device.ui);
-            ui::audio::init(&mut device.ui, device.ai.freq);
+            ui::audio::close_game_audio(&mut device.ui);
+            ui::audio::init_game_audio(&mut device.ui, device.ai.freq);
            ui::video::load_state(device, rdp_state.as_ptr());
-            println!(
-                "Savestate loaded from {}",
-                device.ui.storage.paths.savestate_file_path.display()
+            ui::video::onscreen_message(
+                &device.ui,
+                &format!(
+                    "Savestate loaded from slot {}",
+                    device.ui.storage.save_state_slot
+                ),
            );
        } else {
-            println!("Failed to load savestate");
+            ui::video::onscreen_message(
+                &device.ui,
+                &format!(
+                    "Failed to load savestate from slot {}",
+                    device.ui.storage.save_state_slot
+                ),
+            );
        }
    }
 }
@@ -1,9 +1,11 @@
 pub mod audio;
+pub mod cheats;
 pub mod config;
 pub mod gui;
 pub mod input;
 pub mod netplay;
 pub mod storage;
+pub mod usb;
 pub mod video;
 pub mod vru;

@@ -14,9 +16,6 @@ pub struct Dirs {

 pub struct Audio {
    pub audio_stream: *mut sdl3_sys::audio::SDL_AudioStream,
-    pub event_audio_stream: *mut sdl3_sys::audio::SDL_AudioStream,
-    pub audio_device: u32,
-    pub event_audio: audio::EventAudio,
    pub gain: f32,
 }

@@ -30,6 +29,7 @@ pub struct Storage {
    pub save_type: Vec<storage::SaveTypes>,
    pub paths: storage::Paths,
    pub saves: storage::Saves,
+    pub save_state_slot: u32,
 }

 pub struct Video {
@@ -37,6 +37,11 @@ pub struct Video {
    pub fullscreen: bool,
 }

+pub struct Usb {
+    pub usb_tx: Option<tokio::sync::broadcast::Sender<usb::UsbData>>,
+    pub cart_rx: Option<tokio::sync::broadcast::Receiver<usb::UsbData>>,
+}
+
 pub struct Ui {
    pub dirs: Dirs,
    pub config: config::Config,
@@ -47,12 +52,15 @@ pub struct Ui {
    pub input: Input,
    pub storage: Storage,
    pub video: Video,
+    pub usb: Usb,
+    pub weak: Option<slint::Weak<gui::AppWindow>>,
 }

 impl Drop for Ui {
    fn drop(&mut self) {
        if self.with_sdl {
            unsafe {
+                sdl3_ttf_sys::ttf::TTF_Quit();
                sdl3_sys::init::SDL_Quit();
            }
        }
@@ -61,12 +69,23 @@ impl Drop for Ui {

 pub fn sdl_init(flag: sdl3_sys::init::SDL_InitFlags) {
    unsafe {
-        let init = sdl3_sys::init::SDL_WasInit(0);
-        if init & flag == 0 && !sdl3_sys::init::SDL_InitSubSystem(flag) {
+        if sdl3_sys::init::SDL_WasInit(flag) == 0 && !sdl3_sys::init::SDL_InitSubSystem(flag) {
            let err = std::ffi::CStr::from_ptr(sdl3_sys::error::SDL_GetError())
                .to_str()
                .unwrap();
-            panic!("Could not initialize SDL subsystem: {flag}, {err}");
+            panic!(
+                "Could not initialize SDL subsystem: {}, {}",
+                u32::from(flag),
+                err
+            );
+        }
+    }
+}
+
+pub fn ttf_init() {
+    unsafe {
+        if !sdl3_ttf_sys::ttf::TTF_Init() {
+            panic!("Could not initialize TTF");
        }
    }
 }
@@ -92,7 +111,7 @@ pub fn get_dirs() -> Dirs {
 }

 impl Ui {
-    fn construct_ui(joysticks: Vec<u32>, with_sdl: bool) -> Ui {
+    fn construct_ui(joysticks: Vec<sdl3_sys::everything::SDL_JoystickID>, with_sdl: bool) -> Ui {
        let dirs = get_dirs();

        Ui {
@@ -123,6 +142,7 @@ impl Ui {
                joysticks,
            },
            storage: Storage {
+                save_state_slot: 0,
                save_type: vec![],
                paths: storage::Paths {
                    eep_file_path: std::path::PathBuf::new(),
@@ -137,27 +157,27 @@ impl Ui {
                    write_to_disk: true,
                    eeprom: storage::Save {
                        data: Vec::new(),
-                        written: false,
+                        write_pending: false,
                    },
                    sram: storage::Save {
                        data: Vec::new(),
-                        written: false,
+                        write_pending: false,
                    },
                    flash: storage::Save {
                        data: Vec::new(),
-                        written: false,
+                        write_pending: false,
                    },
                    mempak: storage::Save {
                        data: Vec::new(),
-                        written: false,
+                        write_pending: false,
                    },
                    sdcard: storage::Save {
                        data: Vec::new(),
-                        written: false,
+                        write_pending: false,
                    },
                    romsave: storage::RomSave {
                        data: std::collections::HashMap::new(),
-                        written: false,
+                        write_pending: false,
                    },
                },
            },
@@ -165,29 +185,18 @@ impl Ui {
            game_id: String::new(),
            game_hash: String::new(),
            audio: Audio {
-                event_audio: audio::EventAudio {
-                    mempak: include_bytes!("../data/mempak.wav").to_vec(),
-                    rumblepak: include_bytes!("../data/rumblepak.wav").to_vec(),
-                    transferpak: include_bytes!("../data/transferpak.wav").to_vec(),
-                    netplay_desync: include_bytes!("../data/netplay_desync.wav").to_vec(),
-                    netplay_lost_connection: include_bytes!("../data/netplay_lost_connection.wav")
-                        .to_vec(),
-                    netplay_disconnected: [
-                        include_bytes!("../data/netplay_p1_disconnected.wav").to_vec(),
-                        include_bytes!("../data/netplay_p2_disconnected.wav").to_vec(),
-                        include_bytes!("../data/netplay_p3_disconnected.wav").to_vec(),
-                        include_bytes!("../data/netplay_p4_disconnected.wav").to_vec(),
-                    ],
-                },
                audio_stream: std::ptr::null_mut(),
-                event_audio_stream: std::ptr::null_mut(),
-                audio_device: 0,
                gain: 1.0,
            },
            video: Video {
                window: std::ptr::null_mut(),
                fullscreen: false,
            },
+            usb: Usb {
+                usb_tx: None,
+                cart_rx: None,
+            },
+            weak: None,
            dirs,
            with_sdl,
        }
@@ -1,93 +1,47 @@
 use crate::device;
-use crate::netplay;
 use crate::ui;

-pub struct EventAudio {
-    pub mempak: Vec<u8>,
-    pub rumblepak: Vec<u8>,
-    pub transferpak: Vec<u8>,
-    pub netplay_desync: Vec<u8>,
-    pub netplay_lost_connection: Vec<u8>,
-    pub netplay_disconnected: [Vec<u8>; 4],
-}
-
 pub fn init(ui: &mut ui::Ui, frequency: u64) {
    ui::sdl_init(sdl3_sys::init::SDL_INIT_AUDIO);
+    init_game_audio(ui, frequency);
+}

+pub fn init_game_audio(ui: &mut ui::Ui, frequency: u64) {
    let game_audio_spec = sdl3_sys::audio::SDL_AudioSpec {
        format: sdl3_sys::audio::SDL_AUDIO_S16LE,
        freq: frequency as i32,
        channels: 2,
    };
-    let device_audio_spec = sdl3_sys::audio::SDL_AudioSpec {
-        format: sdl3_sys::audio::SDL_AUDIO_S16LE,
-        freq: 48000,
-        channels: 2,
-    };
-    ui.audio.audio_device = unsafe {
-        sdl3_sys::audio::SDL_OpenAudioDevice(
-            sdl3_sys::audio::SDL_AUDIO_DEVICE_DEFAULT_PLAYBACK,
-            &device_audio_spec,
-        )
-    };
-    if ui.audio.audio_device == 0 {
-        panic!("Could not open audio device");
-    }

-    let mut dst = Default::default();
-    if !unsafe {
-        sdl3_sys::audio::SDL_GetAudioDeviceFormat(
-            ui.audio.audio_device,
-            &mut dst,
+    ui.audio.audio_stream = unsafe {
+        sdl3_sys::audio::SDL_OpenAudioDeviceStream(
+            sdl3_sys::audio::SDL_AUDIO_DEVICE_DEFAULT_PLAYBACK,
+            &game_audio_spec,
+            None,
            std::ptr::null_mut(),
        )
-    } {
-        panic!("Could not get audio device format");
-    }
-
-    ui.audio.audio_stream =
-        unsafe { sdl3_sys::audio::SDL_CreateAudioStream(&game_audio_spec, &dst) };
+    };
    if ui.audio.audio_stream.is_null() {
-        return;
+        panic!("Could not create audio stream");
    }
    if !unsafe {
        sdl3_sys::audio::SDL_SetAudioStreamGain(ui.audio.audio_stream, ui.audio.gain)
-            && sdl3_sys::audio::SDL_BindAudioStream(ui.audio.audio_device, ui.audio.audio_stream)
+            && sdl3_sys::audio::SDL_ResumeAudioStreamDevice(ui.audio.audio_stream)
    } {
-        panic!("Could not bind audio stream");
-    }
-
-    let wav_audio_spec = sdl3_sys::audio::SDL_AudioSpec {
-        format: sdl3_sys::audio::SDL_AUDIO_S16LE,
-        freq: 24000,
-        channels: 1,
-    };
-
-    ui.audio.event_audio_stream =
-        unsafe { sdl3_sys::audio::SDL_CreateAudioStream(&wav_audio_spec, &dst) };
-    if !unsafe {
-        sdl3_sys::audio::SDL_SetAudioStreamGain(ui.audio.event_audio_stream, ui.audio.gain)
-            && sdl3_sys::audio::SDL_BindAudioStream(
-                ui.audio.audio_device,
-                ui.audio.event_audio_stream,
-            )
-    } {
-        panic!("Could not bind audio stream");
+        panic!("Could not resume audio stream");
    }
 }

 pub fn close(ui: &mut ui::Ui) {
+    close_game_audio(ui);
+}
+
+pub fn close_game_audio(ui: &mut ui::Ui) {
    unsafe {
        if !ui.audio.audio_stream.is_null() {
            sdl3_sys::audio::SDL_DestroyAudioStream(ui.audio.audio_stream);
            ui.audio.audio_stream = std::ptr::null_mut();
        }
-        if !ui.audio.event_audio_stream.is_null() {
-            sdl3_sys::audio::SDL_DestroyAudioStream(ui.audio.event_audio_stream);
-            ui.audio.event_audio_stream = std::ptr::null_mut();
-        }
-        sdl3_sys::audio::SDL_CloseAudioDevice(ui.audio.audio_device);
-        ui.audio.audio_device = 0;
    }
 }

@@ -98,8 +52,8 @@ pub fn lower_audio_volume(ui: &mut ui::Ui) {
            ui.audio.gain = 0.0;
        }
        sdl3_sys::audio::SDL_SetAudioStreamGain(ui.audio.audio_stream, ui.audio.gain);
-        sdl3_sys::audio::SDL_SetAudioStreamGain(ui.audio.event_audio_stream, ui.audio.gain);
    }
+    ui::video::onscreen_message(ui, &format!("Audio volume: {:.0}%", ui.audio.gain * 100.0));
 }

 pub fn raise_audio_volume(ui: &mut ui::Ui) {
@@ -109,61 +63,28 @@ pub fn raise_audio_volume(ui: &mut ui::Ui) {
            ui.audio.gain = 2.0;
        }
        sdl3_sys::audio::SDL_SetAudioStreamGain(ui.audio.audio_stream, ui.audio.gain);
-        sdl3_sys::audio::SDL_SetAudioStreamGain(ui.audio.event_audio_stream, ui.audio.gain);
    }
+    ui::video::onscreen_message(ui, &format!("Audio volume: {:.0}%", ui.audio.gain * 100.0));
 }

-pub fn play_netplay_audio(ui: &ui::Ui, error: u32) {
-    if ui.audio.event_audio_stream.is_null() {
-        return;
-    }
-    let sound = match error {
-        netplay::NETPLAY_ERROR_DESYNC => &ui.audio.event_audio.netplay_desync,
-        netplay::NETPLAY_ERROR_LOST_CONNECTION => &ui.audio.event_audio.netplay_lost_connection,
-        netplay::NETPLAY_ERROR_PLAYER_1_DISCONNECTED => {
-            &ui.audio.event_audio.netplay_disconnected[0]
-        }
-        netplay::NETPLAY_ERROR_PLAYER_2_DISCONNECTED => {
-            &ui.audio.event_audio.netplay_disconnected[1]
-        }
-        netplay::NETPLAY_ERROR_PLAYER_3_DISCONNECTED => {
-            &ui.audio.event_audio.netplay_disconnected[2]
-        }
-        netplay::NETPLAY_ERROR_PLAYER_4_DISCONNECTED => {
-            &ui.audio.event_audio.netplay_disconnected[3]
-        }
-        _ => panic!("Invalid netplay error"),
-    };
-    if !unsafe {
-        sdl3_sys::audio::SDL_PutAudioStreamData(
-            ui.audio.event_audio_stream,
-            sound.as_ptr() as *const std::ffi::c_void,
-            sound.len() as i32,
-        )
-    } {
-        panic!("Could not play audio");
-    }
-}
-
-pub fn play_pak_switch(ui: &ui::Ui, pak: device::controller::PakType) {
-    if ui.audio.event_audio_stream.is_null() {
+fn adjust_audio_frequency(device: &device::Device, frequency: f32) {
+    if !device.vi.enable_speed_limiter {
        return;
    }

-    let sound = match pak {
-        device::controller::PakType::RumblePak => &ui.audio.event_audio.rumblepak,
-        device::controller::PakType::MemPak => &ui.audio.event_audio.mempak,
-        device::controller::PakType::TransferPak => &ui.audio.event_audio.transferpak,
-        _ => panic!("Invalid pak type"),
-    };
-    if !unsafe {
-        sdl3_sys::audio::SDL_PutAudioStreamData(
-            ui.audio.event_audio_stream,
-            sound.as_ptr() as *const std::ffi::c_void,
-            sound.len() as i32,
-        )
-    } {
-        panic!("Could not play audio");
+    unsafe {
+        let current_ratio =
+            sdl3_sys::everything::SDL_GetAudioStreamFrequencyRatio(device.ui.audio.audio_stream);
+        sdl3_sys::everything::SDL_SetAudioStreamFrequencyRatio(
+            device.ui.audio.audio_stream,
+            (current_ratio + frequency).clamp(0.995, 1.005),
+        );
+        /*
+        println!(
+            "Adjusted audio frequency ratio to {}",
+            sdl3_sys::everything::SDL_GetAudioStreamFrequencyRatio(device.ui.audio.audio_stream)
+        );
+        */
    }
 }

@@ -176,22 +97,22 @@ pub fn play_audio(device: &device::Device, dram_addr: usize, length: u64) {
    let mut i = 0;
    while i < length as usize / 2 {
        // Left channel
-        primary_buffer[i] = device.rdram.mem[dram_addr + (i * 2) + 2] as i16
-            | ((device.rdram.mem[dram_addr + (i * 2) + 3] as i16) << 8);
+        primary_buffer[i] = *device.rdram.mem.get(dram_addr + (i * 2) + 2).unwrap_or(&0) as i16
+            | ((*device.rdram.mem.get(dram_addr + (i * 2) + 3).unwrap_or(&0) as i16) << 8);

        // Right channel
-        primary_buffer[i + 1] = device.rdram.mem[dram_addr + (i * 2)] as i16
-            | ((device.rdram.mem[dram_addr + (i * 2) + 1] as i16) << 8);
+        primary_buffer[i + 1] = *device.rdram.mem.get(dram_addr + (i * 2)).unwrap_or(&0) as i16
+            | ((*device.rdram.mem.get(dram_addr + (i * 2) + 1).unwrap_or(&0) as i16) << 8);
        i += 2;
    }

    let audio_queued =
        unsafe { sdl3_sys::audio::SDL_GetAudioStreamQueued(device.ui.audio.audio_stream) } as f64;
-    let acceptable_latency = (device.ai.freq as f64 * 0.2) * 4.0;
-    let min_latency = (device.ai.freq as f64 * 0.02) * 4.0;
+    let samples_per_frame = device.ai.freq as f64 * device.vi.frame_time * 4.0;
+    let max_latency = samples_per_frame * 8.0;

-    if audio_queued < min_latency {
-        let silence_buffer: Vec<u8> = vec![0; min_latency as usize & !3];
+    if audio_queued < samples_per_frame {
+        let silence_buffer: Vec<u8> = vec![0; samples_per_frame as usize & !3];
        if !unsafe {
            sdl3_sys::audio::SDL_PutAudioStreamData(
                device.ui.audio.audio_stream,
@@ -201,17 +122,32 @@ pub fn play_audio(device: &device::Device, dram_addr: usize, length: u64) {
        } {
            panic!("Could not play audio");
        }
+        /*
+        println!(
+            "Audio underrun: queued {} samples, expected at least {} samples",
+            audio_queued, samples_per_frame
+        );
+        */
+        adjust_audio_frequency(device, -0.0005);
    }

-    if audio_queued < acceptable_latency
-        && !unsafe {
+    if audio_queued < max_latency {
+        if !unsafe {
            sdl3_sys::audio::SDL_PutAudioStreamData(
                device.ui.audio.audio_stream,
                primary_buffer.as_ptr() as *const std::ffi::c_void,
                primary_buffer.len() as i32 * 2,
            )
+        } {
+            panic!("Could not play audio");
        }
-    {
-        panic!("Could not play audio");
+    } else {
+        /*
+        println!(
+            "Audio overrun: queued {} samples, expected at most {} samples",
+            audio_queued, max_latency
+        );
+        */
+        adjust_audio_frequency(device, 0.0005);
    }
 }
@@ -0,0 +1,156 @@
+use crate::device;
+use crate::ui;
+use crate::ui::gui::AppWindow;
+use crate::ui::gui::ErrorDialog;
+use slint::ComponentHandle;
+
+#[derive(serde::Serialize, serde::Deserialize, Clone)]
+pub struct CheatData {
+    note: String,
+    pub data: Vec<String>,
+    pub options: Option<std::collections::BTreeMap<String, String>>,
+}
+
+pub type Cheats = std::collections::BTreeMap<String, std::collections::BTreeMap<String, CheatData>>;
+
+pub fn cheats_window(app: &AppWindow) {
+    let weak = app.as_weak();
+    app.on_cheats_select_rom_clicked(move |rom_dir| {
+        let select_rom = if !rom_dir.is_empty()
+            && let Ok(exists) = std::fs::exists(&rom_dir)
+            && exists
+        {
+            rfd::AsyncFileDialog::new().set_directory(rom_dir)
+        } else {
+            rfd::AsyncFileDialog::new()
+        }
+        .set_title("Select ROM")
+        .add_filter("ROM files", &ui::gui::N64_EXTENSIONS)
+        .pick_file();
+        let weak = weak.clone();
+        tokio::spawn(async move {
+            if let Some(file) = select_rom.await
+                && let Some(rom_contents) = device::get_rom_contents(file.path())
+            {
+                let game_crc = ui::storage::get_game_crc(&rom_contents);
+                let game_name = ui::storage::get_game_name(&rom_contents);
+                weak.upgrade_in_event_loop(move |handle| {
+                    handle.set_cheat_game_name(game_name.into());
+                })
+                .unwrap();
+                let cheats: Cheats =
+                    serde_json::from_slice(include_bytes!("../../data/cheats.json")).unwrap();
+                if let Some(cheat) = cheats.get(&game_crc) {
+                    let cheat = cheat.clone();
+                    weak.upgrade_in_event_loop(move |handle| {
+                        let cheat_settings = ui::config::Cheats::new();
+                        let game_cheats = cheat_settings.cheats.get(&game_crc).cloned();
+                        handle.set_cheat_game_crc(game_crc.into());
+                        let cheats_vec = slint::VecModel::default();
+                        for item in cheat.iter() {
+                            let mut cheat_enabled = false;
+                            if let Some(game_cheat) = game_cheats.as_ref()
+                                && game_cheat.contains_key(item.0)
+                            {
+                                cheat_enabled = true;
+                            }
+                            let options_vec = slint::VecModel::default();
+                            if let Some(options) = item.1.options.as_ref() {
+                                for option in options.iter() {
+                                    let mut option_enabled = false;
+                                    if let Some(game_cheat) = game_cheats.as_ref()
+                                        && game_cheat.contains_key(item.0)
+                                        && let Some(opt) = game_cheat.get(item.0)
+                                        && let Some(opt) = opt
+                                        && opt == option.0
+                                    {
+                                        option_enabled = true;
+                                    }
+                                    options_vec.push((option_enabled, option.0.into()));
+                                }
+                            }
+                            let options = slint::ModelRc::from(std::rc::Rc::new(options_vec));
+                            cheats_vec.push((
+                                item.0.clone().into(),
+                                cheat_enabled,
+                                item.1.clone().note.into(),
+                                options,
+                            ));
+                        }
+                        #[allow(clippy::type_complexity)]
+                        let cheats_model: std::rc::Rc<
+                            slint::VecModel<(
+                                slint::SharedString,
+                                bool,
+                                slint::SharedString,
+                                slint::ModelRc<(bool, slint::SharedString)>,
+                            )>,
+                        > = std::rc::Rc::new(cheats_vec);
+                        handle.set_cheats(slint::ModelRc::from(cheats_model));
+                    })
+                    .unwrap();
+                } else {
+                    clear_cheats(&weak, false);
+                }
+            } else {
+                clear_cheats(&weak, true);
+                weak.upgrade_in_event_loop(move |_handle| {
+                    let message_dialog = ErrorDialog::new().unwrap();
+                    let weak_dialog = message_dialog.as_weak();
+                    message_dialog.on_close_clicked(move || {
+                        weak_dialog.unwrap().window().hide().unwrap();
+                    });
+                    message_dialog.set_text("Could not read ROM".into());
+                    message_dialog.show().unwrap();
+                })
+                .unwrap();
+            }
+        });
+    });
+
+    let weak = app.as_weak();
+    app.on_cheats_clear_clicked(move || {
+        let mut cheats = ui::config::Cheats::new();
+        cheats.cheats.clear();
+        clear_cheats(&weak, true);
+    });
+
+    app.on_cheat_toggled(move |game_crc, cheat_name, option, enabled| {
+        let mut cheats = ui::config::Cheats::new();
+        let mut game_cheats = cheats
+            .cheats
+            .remove(&game_crc.to_string())
+            .unwrap_or_default();
+        if enabled {
+            let cheat_option = if option.is_empty() {
+                None
+            } else {
+                Some(option.into())
+            };
+            game_cheats.insert(cheat_name.into(), cheat_option);
+        } else {
+            game_cheats.remove(&cheat_name.to_string());
+        }
+        cheats.cheats.insert(game_crc.into(), game_cheats);
+    });
+}
+
+fn clear_cheats(weak: &slint::Weak<AppWindow>, clear_name: bool) {
+    weak.upgrade_in_event_loop(move |handle| {
+        let cheats_vec = slint::VecModel::default();
+        #[allow(clippy::type_complexity)]
+        let cheats_model: std::rc::Rc<
+            slint::VecModel<(
+                slint::SharedString,
+                bool,
+                slint::SharedString,
+                slint::ModelRc<(bool, slint::SharedString)>,
+            )>,
+        > = std::rc::Rc::new(cheats_vec);
+        handle.set_cheats(slint::ModelRc::from(cheats_model));
+        if clear_name {
+            handle.set_cheat_game_name("".into());
+        }
+    })
+    .unwrap();
+}
@@ -29,11 +29,12 @@ pub struct InputProfile {
    pub joystick_hat: [InputJoystickHat; ui::input::PROFILE_SIZE],
    pub joystick_axis: [InputControllerAxis; ui::input::PROFILE_SIZE],
    pub dinput: bool,
+    pub deadzone: i32,
 }

 #[derive(serde::Serialize, serde::Deserialize)]
 pub struct Input {
-    pub input_profiles: std::collections::HashMap<String, InputProfile>,
+    pub input_profiles: std::collections::BTreeMap<String, InputProfile>,
    pub input_profile_binding: [String; 4],
    pub controller_assignment: [Option<String>; 4],
    pub controller_enabled: [bool; 4],
@@ -53,6 +54,14 @@ pub struct Video {
 #[derive(serde::Serialize, serde::Deserialize)]
 pub struct Emulation {
    pub overclock: bool,
+    pub disable_expansion_pak: bool,
+    pub usb: bool,
+}
+
+#[derive(serde::Serialize, serde::Deserialize)]
+pub struct Cheats {
+    pub cheats:
+        std::collections::HashMap<String, std::collections::HashMap<String, Option<String>>>,
 }

 #[derive(serde::Serialize, serde::Deserialize)]
@@ -60,6 +69,37 @@ pub struct Config {
    pub input: Input,
    pub video: Video,
    pub emulation: Emulation,
+    pub rom_dir: std::path::PathBuf,
+}
+
+impl Drop for Cheats {
+    fn drop(&mut self) {
+        write_cheats(self);
+    }
+}
+
+fn write_cheats(cheats: &Cheats) {
+    let dirs = ui::get_dirs();
+    let file_path = dirs.config_dir.join("cheats.json");
+    let f = std::fs::File::create(file_path).unwrap();
+    serde_json::to_writer_pretty(f, &cheats).unwrap();
+}
+
+impl Cheats {
+    pub fn new() -> Cheats {
+        let dirs = ui::get_dirs();
+        let file_path = dirs.config_dir.join("cheats.json");
+        let cheats_file = std::fs::read(file_path);
+        if let Ok(cheats_file) = cheats_file {
+            let result = serde_json::from_slice(cheats_file.as_ref());
+            if let Ok(result) = result {
+                return result;
+            }
+        }
+        Cheats {
+            cheats: std::collections::HashMap::new(),
+        }
+    }
 }

 impl Drop for Config {
@@ -86,7 +126,7 @@ impl Config {
                return result;
            }
        }
-        let mut input_profiles = std::collections::HashMap::new();
+        let mut input_profiles = std::collections::BTreeMap::new();
        input_profiles.insert("default".to_string(), ui::input::get_default_profile());
        Config {
            input: Input {
@@ -109,7 +149,12 @@ impl Config {
                widescreen: false,
                crt: false,
            },
-            emulation: Emulation { overclock: false },
+            emulation: Emulation {
+                overclock: false,
+                disable_expansion_pak: false,
+                usb: false,
+            },
+            rom_dir: std::path::PathBuf::new(),
        }
    }
 }
@@ -5,6 +5,10 @@ use slint::Model;

 slint::include_modules!();

+pub const N64_EXTENSIONS: [&str; 12] = [
+    "n64", "v64", "z64", "7z", "zip", "bin", "N64", "V64", "Z64", "7Z", "ZIP", "BIN",
+];
+
 #[derive(serde::Deserialize)]
 struct GithubData {
    tag_name: String,
@@ -20,9 +24,12 @@ pub struct GbPaths {
    pub ram: [Option<std::path::PathBuf>; 4],
 }

-pub struct VruChannel {
-    pub vru_window_notifier: Option<tokio::sync::mpsc::Sender<Option<Vec<String>>>>,
-    pub vru_word_receiver: Option<tokio::sync::mpsc::Receiver<String>>,
+#[derive(Clone)]
+pub struct GameSettings {
+    pub fullscreen: bool,
+    pub overclock: bool,
+    pub disable_expansion_pak: bool,
+    pub cheats: std::collections::HashMap<String, Option<String>>,
 }

 fn check_latest_version(weak: slint::Weak<AppWindow>) {
@@ -52,52 +59,23 @@ fn check_latest_version(weak: slint::Weak<AppWindow>) {
    });
 }

-fn netplay_window(app: &AppWindow, controller_paths: &[Option<String>]) {
-    let weak_create = app.as_weak();
-    let weak_app = app.as_weak();
-    let controller_paths_create = controller_paths.to_owned();
-    app.on_create_session_button_clicked(move || {
-        let controller_paths = controller_paths_create.clone();
-        let weak_app = weak_app.clone();
-        weak_create
-            .upgrade_in_event_loop(move |handle| {
-                let create_window = NetplayCreate::new().unwrap();
-                save_settings(&handle, &controller_paths);
-                ui::netplay::setup_create_window(
-                    &create_window,
-                    handle.get_overclock_n64_cpu(),
-                    handle.get_fullscreen(),
-                    weak_app,
-                );
-            })
-            .unwrap();
-    });
-
-    let weak_join = app.as_weak();
-    let weak_app = app.as_weak();
-    let controller_paths_join = controller_paths.to_owned();
-    app.on_join_session_button_clicked(move || {
-        let controller_paths = controller_paths_join.clone();
-        let weak_app = weak_app.clone();
-        weak_join
-            .upgrade_in_event_loop(move |handle| {
-                let join_window = NetplayJoin::new().unwrap();
-                save_settings(&handle, &controller_paths);
-                ui::netplay::setup_join_window(&join_window, handle.get_fullscreen(), weak_app);
-            })
-            .unwrap();
-    });
-}
-
-fn local_game_window(app: &AppWindow, controller_paths: &[Option<String>]) {
+fn local_game_window(app: &AppWindow, controller_paths: &[Option<String>], usb: ui::Usb) {
    let dirs = ui::get_dirs();
    let weak = app.as_weak();
    let controller_paths = controller_paths.to_owned();
    app.on_open_rom_button_clicked(move || {
        let controller_paths = controller_paths.clone();
+        let mut usb_tx = None;
+        if let Some(usb_tx_inner) = usb.usb_tx.as_ref() {
+            usb_tx = Some(usb_tx_inner.clone());
+        }
+        let mut cart_rx = None;
+        if let Some(cart_rx_inner) = usb.cart_rx.as_ref() {
+            cart_rx = Some(cart_rx_inner.resubscribe());
+        }
        weak.upgrade_in_event_loop(move |handle| {
            save_settings(&handle, &controller_paths);
-            open_rom(&handle)
+            open_rom(&handle, ui::Usb { usb_tx, cart_rx })
        })
        .unwrap();
    });
@@ -122,13 +100,20 @@ fn settings_window(app: &AppWindow, config: &ui::config::Config) {
    app.set_widescreen(config.video.widescreen);
    app.set_apply_crt_shader(config.video.crt);
    app.set_overclock_n64_cpu(config.emulation.overclock);
+    app.set_disable_expansion_pak(config.emulation.disable_expansion_pak);
+    app.set_emulate_usb(config.emulation.usb);
    let combobox_value = match config.video.upscale {
        1 => 0,
        2 => 1,
        4 => 2,
+        8 => 3,
        _ => 0,
    };
    app.set_resolution(combobox_value);
+
+    if let Some(rom_dir_str) = config.rom_dir.to_str() {
+        app.set_rom_dir(rom_dir_str.into());
+    }
 }

 fn update_input_profiles(weak: &slint::Weak<AppWindow>, config: &ui::config::Config) {
@@ -201,6 +186,7 @@ fn controller_window(
        std::rc::Rc::new(controllers);
    app.set_controller_names(slint::ModelRc::from(controller_names_model));

+    let controller_changed = slint::VecModel::default();
    let selected_controllers = slint::VecModel::default();
    for selected in config.input.controller_assignment.iter() {
        let mut found = false;
@@ -214,14 +200,20 @@ fn controller_window(
        if !found {
            selected_controllers.push(0);
        }
+        controller_changed.push(false);
    }
    let selected_controllers_model: std::rc::Rc<slint::VecModel<i32>> =
        std::rc::Rc::new(selected_controllers);
    app.set_selected_controller(slint::ModelRc::from(selected_controllers_model));

+    let controller_changed_model: std::rc::Rc<slint::VecModel<bool>> =
+        std::rc::Rc::new(controller_changed);
+    app.set_controller_changed(slint::ModelRc::from(controller_changed_model));
+
    let weak_app = app.as_weak();
    app.on_input_profile_button_clicked(move || {
        let dialog = InputProfileDialog::new().unwrap();
+        dialog.set_deadzone(ui::input::DEADZONE_DEFAULT);
        let weak_dialog = dialog.as_weak();
        let weak_app = weak_app.clone();
        dialog.on_profile_creation_button_clicked(move || {
@@ -231,10 +223,16 @@ fn controller_window(
                    handle.hide().unwrap();
                    let profile_name = handle.get_profile_name().into();
                    let dinput = handle.get_dinput();
+                    let deadzone = handle.get_deadzone();

                    tokio::spawn(async move {
                        let mut game_ui = ui::Ui::new();
-                        ui::input::configure_input_profile(&mut game_ui, profile_name, dinput);
+                        ui::input::configure_input_profile(
+                            &mut game_ui,
+                            profile_name,
+                            dinput,
+                            deadzone,
+                        );
                        update_input_profiles(&weak_app, &game_ui.config);
                    });
                })
@@ -244,14 +242,16 @@ fn controller_window(
    });
 }

-fn save_settings(app: &AppWindow, controller_paths: &[Option<String>]) {
+pub fn save_settings(app: &AppWindow, controller_paths: &[Option<String>]) {
    let mut config = ui::config::Config::new();
    config.video.integer_scaling = app.get_integer_scaling();
    config.video.fullscreen = app.get_fullscreen();
    config.video.widescreen = app.get_widescreen();
    config.video.crt = app.get_apply_crt_shader();
    config.emulation.overclock = app.get_overclock_n64_cpu();
-    let upscale_values = [1, 2, 4];
+    config.emulation.disable_expansion_pak = app.get_disable_expansion_pak();
+    config.emulation.usb = app.get_emulate_usb();
+    let upscale_values = [1, 2, 4, 8];
    config.video.upscale = upscale_values[app.get_resolution() as usize];

    config.input.emulate_vru = app.get_emulate_vru();
@@ -270,8 +270,10 @@ fn save_settings(app: &AppWindow, controller_paths: &[Option<String>]) {
    }

    for (i, selected_controller) in app.get_selected_controller().iter().enumerate() {
-        config.input.controller_assignment[i] =
-            controller_paths[selected_controller as usize].clone();
+        if app.get_controller_changed().row_data(i).unwrap_or(false) {
+            config.input.controller_assignment[i] =
+                controller_paths[selected_controller as usize].clone();
+        }
    }
 }

@@ -282,6 +284,15 @@ fn about_window(app: &AppWindow) {
    app.on_discord_button_clicked(move || {
        open::that_detached("https://discord.gg/9RGXq8W8JQ").unwrap();
    });
+    app.on_patreon_button_clicked(move || {
+        open::that_detached("https://patreon.com/loganmc10").unwrap();
+    });
+    app.on_github_sponsors_button_clicked(move || {
+        open::that_detached("https://github.com/sponsors/loganmc10").unwrap();
+    });
+    app.on_source_code_button_clicked(move || {
+        open::that_detached("https://github.com/gopher64/gopher64").unwrap();
+    });
    app.on_newversion_button_clicked(move || {
        open::that_detached("https://github.com/gopher64/gopher64/releases/latest").unwrap();
    });
@@ -292,6 +303,11 @@ fn about_window(app: &AppWindow) {
 pub fn app_window() {
    let app = AppWindow::new().unwrap();
    about_window(&app);
+    let mut usb = ui::Usb {
+        usb_tx: None,
+        cart_rx: None,
+    };
+    let mut shutdown_tx = None;
    let mut controller_paths;
    {
        let game_ui = ui::Ui::new();
@@ -301,117 +317,96 @@ pub fn app_window() {
        controller_paths.insert(0, None);
        settings_window(&app, &game_ui.config);
        controller_window(&app, &game_ui.config, &controller_names, &controller_paths);
-    }
-    local_game_window(&app, &controller_paths);
-    netplay_window(&app, &controller_paths);
-    app.run().unwrap();
-    save_settings(&app, &controller_paths);
-}

-fn setup_vru_word_watcher(
-    weak_vru: slint::Weak<AppWindow>,
-    vru_word_notifier: tokio::sync::mpsc::Sender<String>,
-    mut vru_window_receiver: tokio::sync::mpsc::Receiver<Option<Vec<String>>>,
-) {
-    tokio::spawn(async move {
-        loop {
-            let notifier = vru_word_notifier.clone();
-            let notifier_closed = vru_word_notifier.clone();
-            let result = vru_window_receiver.recv().await;
-            if let Some(Some(words)) = result {
-                weak_vru
-                    .upgrade_in_event_loop(move |_handle| {
-                        let vru_dialog = VruDialog::new().unwrap();
-                        let vru_dialog_weak = vru_dialog.as_weak();
-
-                        vru_dialog.on_vru_button_clicked(move |chosen_word| {
-                            notifier.try_send(chosen_word.to_string()).unwrap();
-                            vru_dialog_weak.unwrap().window().hide().unwrap();
-                        });
-
-                        vru_dialog.window().on_close_requested(move || {
-                            notifier_closed.try_send("".to_string()).unwrap();
-                            slint::CloseRequestResponse::HideWindow
-                        });
-
-                        let words_vec = slint::VecModel::default();
-                        for word in words {
-                            words_vec.push(word.into());
-                        }
-                        let words_model: std::rc::Rc<slint::VecModel<slint::SharedString>> =
-                            std::rc::Rc::new(words_vec);
-                        vru_dialog.set_words(slint::ModelRc::from(words_model));
-
-                        vru_dialog.show().unwrap();
-                    })
-                    .unwrap();
-            } else {
-                return;
-            }
+        if game_ui.config.emulation.usb {
+            (shutdown_tx, usb) = ui::usb::init(app.as_weak());
        }
-    });
+    }
+    local_game_window(&app, &controller_paths, usb);
+    ui::netplay::netplay_window(&app, &controller_paths);
+    ui::cheats::cheats_window(&app);
+    app.run().unwrap();
+    if let Some(shutdown_tx) = &shutdown_tx {
+        ui::usb::close(shutdown_tx);
+    }
+    save_settings(&app, &controller_paths);
 }

 pub fn run_rom(
    gb_paths: GbPaths,
    file_path: std::path::PathBuf,
-    fullscreen: bool,
-    overclock: bool,
-    vru_channel: VruChannel,
+    mut game_settings: GameSettings,
    netplay: Option<NetplayDevice>,
+    usb: ui::Usb,
    weak: slint::Weak<AppWindow>,
 ) {
-    std::thread::Builder::new()
-        .name("n64".to_string())
-        .stack_size(env!("N64_STACK_SIZE").parse().unwrap())
-        .spawn(move || {
-            weak.upgrade_in_event_loop(move |handle| handle.set_game_running(true))
-                .unwrap();
+    tokio::spawn(async move {
+        weak.upgrade_in_event_loop(move |handle| handle.set_game_running(true))
+            .unwrap();

-            let mut device = device::Device::new();
+        let mut device = device::Device::new();
+        device.ui.config.rom_dir = file_path.parent().unwrap().to_path_buf();

-            for i in 0..4 {
-                if gb_paths.rom[i].is_some() && gb_paths.ram[i].is_some() {
-                    device.transferpaks[i].cart.rom =
-                        std::fs::read(gb_paths.rom[i].as_ref().unwrap()).unwrap();
+        for i in 0..4 {
+            if gb_paths.rom[i].is_some() && gb_paths.ram[i].is_some() {
+                device.transferpaks[i].cart.rom =
+                    std::fs::read(gb_paths.rom[i].as_ref().unwrap()).unwrap();

-                    device.transferpaks[i].cart.ram =
-                        std::fs::read(gb_paths.ram[i].as_ref().unwrap()).unwrap();
-                }
+                device.transferpaks[i].cart.ram =
+                    std::fs::read(gb_paths.ram[i].as_ref().unwrap()).unwrap();
            }
+        }

-            device.vru_window.window_notifier = vru_channel.vru_window_notifier;
-            device.vru_window.word_receiver = vru_channel.vru_word_receiver;
+        device.ui.usb.usb_tx = usb.usb_tx;
+        device.ui.usb.cart_rx = usb.cart_rx;

-            if let Some(rom_contents) = device::get_rom_contents(file_path.as_path()) {
-                if let Some(netplay_device) = netplay {
-                    device.netplay = Some(netplay::init(
-                        netplay_device.peer_addr,
-                        netplay_device.player_number,
-                    ));
-                }
-                device::run_game(&mut device, rom_contents, fullscreen, overclock);
-                if device.netplay.is_some() {
-                    netplay::close(&mut device);
-                }
+        device.ui.weak = Some(weak.clone());
+
+        if let Some(rom_contents) = device::get_rom_contents(file_path.as_path()) {
+            if let Some(netplay_device) = netplay {
+                device.netplay = Some(netplay::init(
+                    netplay_device.peer_addr,
+                    netplay_device.player_number,
+                ));
            } else {
-                println!("Could not read rom file");
+                game_settings.cheats = {
+                    let game_crc = ui::storage::get_game_crc(&rom_contents);
+                    let cheats = ui::config::Cheats::new();
+                    cheats.cheats.get(&game_crc).cloned().unwrap_or_default()
+                };
            }
-
-            if let Some(vru_window_notifier) = device.vru_window.window_notifier {
-                vru_window_notifier.try_send(None).unwrap();
+            device::run_game(&mut device, rom_contents, game_settings);
+            if device.netplay.is_some() {
+                netplay::close(&mut device);
            }
+        } else {
+            println!("Could not read rom file");
+        }

-            weak.upgrade_in_event_loop(move |handle| handle.set_game_running(false))
-                .unwrap();
+        let rom_dir = device.ui.config.rom_dir.clone();
+        weak.upgrade_in_event_loop(move |handle| {
+            if let Some(rom_dir_str) = rom_dir.to_str() {
+                handle.set_rom_dir(rom_dir_str.into());
+            }
+            handle.set_game_running(false);
        })
        .unwrap();
+    });
 }

-fn open_rom(app: &AppWindow) {
-    let select_rom = rfd::AsyncFileDialog::new()
-        .set_title("Select ROM")
-        .pick_file();
+fn open_rom(app: &AppWindow, usb: ui::Usb) {
+    let rom_dir = app.get_rom_dir();
+    let select_rom = if !rom_dir.is_empty()
+        && let Ok(exists) = std::fs::exists(&rom_dir)
+        && exists
+    {
+        rfd::AsyncFileDialog::new().set_directory(rom_dir)
+    } else {
+        rfd::AsyncFileDialog::new()
+    }
+    .set_title("Select ROM")
+    .add_filter("ROM files", &N64_EXTENSIONS)
+    .pick_file();
    let mut select_gb_rom = [None, None, None, None];
    let mut select_gb_ram = [None, None, None, None];

@@ -420,34 +415,22 @@ fn open_rom(app: &AppWindow) {
            select_gb_rom[i] = Some(
                rfd::AsyncFileDialog::new()
                    .set_title(format!("GB ROM P{}", i + 1))
+                    .add_filter("GB ROM files", &["gb", "gbc", "GB", "GBC"])
                    .pick_file(),
            );
            select_gb_ram[i] = Some(
                rfd::AsyncFileDialog::new()
                    .set_title(format!("GB RAM P{}", i + 1))
+                    .add_filter("GB RAM files", &["sav", "ram", "srm", "SAV", "RAM", "SRM"])
                    .pick_file(),
            );
        }
    }

-    #[allow(clippy::type_complexity)]
-    let (vru_window_notifier, vru_window_receiver): (
-        tokio::sync::mpsc::Sender<Option<Vec<String>>>,
-        tokio::sync::mpsc::Receiver<Option<Vec<String>>>,
-    ) = tokio::sync::mpsc::channel(5);
-
-    let (vru_word_notifier, vru_word_receiver): (
-        tokio::sync::mpsc::Sender<String>,
-        tokio::sync::mpsc::Receiver<String>,
-    ) = tokio::sync::mpsc::channel(5);
-
    let fullscreen = app.get_fullscreen();
    let overclock = app.get_overclock_n64_cpu();
-    let emulate_vru = app.get_emulate_vru();
+    let disable_expansion_pak = app.get_disable_expansion_pak();

-    if emulate_vru {
-        setup_vru_word_watcher(app.as_weak(), vru_word_notifier, vru_window_receiver);
-    }
    let weak = app.as_weak();
    tokio::spawn(async move {
        if let Some(file) = select_rom.await {
@@ -470,20 +453,14 @@ fn open_rom(app: &AppWindow) {
                    ram: gb_ram_path,
                },
                file.path().to_path_buf(),
-                fullscreen,
-                overclock,
-                if emulate_vru {
-                    VruChannel {
-                        vru_window_notifier: Some(vru_window_notifier),
-                        vru_word_receiver: Some(vru_word_receiver),
-                    }
-                } else {
-                    VruChannel {
-                        vru_window_notifier: None,
-                        vru_word_receiver: None,
-                    }
+                GameSettings {
+                    fullscreen,
+                    overclock,
+                    disable_expansion_pak,
+                    cheats: std::collections::HashMap::new(), // will be filled in later
                },
                None,
+                usb,
                weak,
            );
        }
@@ -9,10 +9,27 @@ export global AboutData {
    in property <bool> has_update;
 }

+export component NewVersionButton {
+    callback newversion_button_clicked;
+    HorizontalBox {
+        alignment: center;
+        Button {
+            text: @tr("New version available! Click here to download");
+            primary: true;
+            clicked => {
+                newversion_button_clicked();
+            }
+        }
+    }
+}
+
 export component About inherits Page {
    callback wiki_button_clicked;
    callback discord_button_clicked;
    callback newversion_button_clicked;
+    callback patreon_button_clicked;
+    callback github_sponsors_button_clicked;
+    callback source_code_button_clicked;
    title: @tr("About");

    VerticalBox {
@@ -37,6 +54,33 @@ export component About inherits Page {
            }
        }

+        HorizontalBox {
+            alignment: center;
+            Button {
+                text: @tr("Source Code");
+                clicked => {
+                    source_code_button_clicked();
+                }
+            }
+        }
+
+        HorizontalBox {
+            alignment: center;
+            Button {
+                text: @tr("Donate (via Patreon)");
+                clicked => {
+                    patreon_button_clicked();
+                }
+            }
+
+            Button {
+                text: @tr("Donate (via GitHub)");
+                clicked => {
+                    github_sponsors_button_clicked();
+                }
+            }
+        }
+
        HorizontalBox {
            alignment: center;
            Text {
@@ -44,15 +88,11 @@ export component About inherits Page {
            }
        }

-        if AboutData.has_update:HorizontalBox {
-            alignment: center;
-            Button {
-                text: @tr("New version available! Click to download");
-                primary: true;
-                clicked => {
-                    newversion_button_clicked();
-                }
+        if AboutData.has_update:NewVersionButton {
+            newversion_button_clicked => {
+                newversion_button_clicked();
            }
        }
+        Rectangle { }
    }
 }
@@ -1,28 +1,39 @@
 // Copyright © SixtyFPS GmbH <info@slint.dev>
 // SPDX-License-Identifier: MIT

-import { LocalGame, ControllerConfig, Netplay, Settings, About } from "pages.slint";
+import { StandardButton } from "std-widgets.slint";
+import { LocalGame, ControllerConfig, Netplay, Cheats, Settings, About } from "pages.slint";
 import { SideBar } from "side_bar.slint";
 import { SettingsData } from "settings_page.slint";
 import { AboutData } from "about_page.slint";
 import { ControllerData } from "controller_page.slint";
 import { State } from "localgame_page.slint";
+import { CheatsData } from "cheat_page.slint";
 export { InputProfileDialog } from "input_profile.slint";
 export { VruDialog } from "vru_dialog.slint";
 export { NetplayCreate } from "netplay_create.slint";
 export { NetplayJoin } from "netplay_join.slint";
 export { NetplayWait } from "netplay_wait.slint";
-export { NetplayDialog } from "netplay_page.slint";
+export { CustomNetplayServer } from "netplay_page.slint";
+export { DispatcherDialog } from "netplay_create.slint";

 export component AppWindow inherits Window {
    callback wiki_button_clicked;
    callback discord_button_clicked;
    callback newversion_button_clicked;
+    callback patreon_button_clicked;
+    callback github_sponsors_button_clicked;
+    callback source_code_button_clicked;
    callback open_rom_button_clicked;
    callback saves_folder_button_clicked;
    callback input_profile_button_clicked;
    callback create_session_button_clicked;
    callback join_session_button_clicked;
+    callback netplay_discord_button_clicked;
+    callback netplay_feedback_button_clicked;
+    callback cheats_select_rom_clicked(string);
+    callback cheats_clear_clicked;
+    callback cheat_toggled(string, string, string, bool);
    in property version <=> AboutData.version;
    in property has_update <=> AboutData.has_update;
    in-out property integer_scaling <=> SettingsData.integer_scaling;
@@ -30,9 +41,13 @@ export component AppWindow inherits Window {
    in-out property widescreen <=> SettingsData.widescreen;
    in-out property apply_crt_shader <=> SettingsData.apply_crt_shader;
    in-out property overclock_n64_cpu <=> SettingsData.overclock_n64_cpu;
+    in-out property disable_expansion_pak <=> SettingsData.disable_expansion_pak;
    in-out property resolution <=> SettingsData.resolution;
+    in-out property emulate_usb <=> SettingsData.emulate_usb;
+    in-out property rom_dir <=> SettingsData.rom_dir;
    in-out property emulate_vru <=> ControllerData.emulate_vru;
    in-out property controller_enabled <=> ControllerData.controller_enabled;
+    in-out property controller_changed <=> ControllerData.controller_changed;
    in-out property transferpak <=> ControllerData.transferpak;
    in-out property selected_profile_binding <=> ControllerData.selected_profile_binding;
    in-out property input_profiles <=> ControllerData.input_profiles;
@@ -40,10 +55,13 @@ export component AppWindow inherits Window {
    in-out property selected_controller <=> ControllerData.selected_controller;
    in-out property game_running <=> State.game_running;
    in-out property blank_profiles <=> ControllerData.blank_profiles;
+    in-out property cheat_game_name <=> CheatsData.cheat_game_name;
+    in-out property cheat_game_crc <=> CheatsData.cheat_game_crc;
+    in-out property cheats <=> CheatsData.cheats;
    preferred-width: 700px;
    preferred-height: 500px;
    title: @tr("Gopher64");
-    icon: @image-url("../../../data/gopher64.png");
+    icon: @image-url("../../../data/icon/gopher64.png");

    HorizontalLayout {
        side-bar := SideBar {
@@ -52,6 +70,7 @@ export component AppWindow inherits Window {
                @tr("Menu" => "Local Game"),
                @tr("Menu" => "Controller Config"),
                @tr("Menu" => "Netplay"),
+                @tr("Menu" => "Cheats"),
                @tr("Menu" => "Settings"),
                @tr("Menu" => "About")
            ];
@@ -64,6 +83,9 @@ export component AppWindow inherits Window {
            saves_folder_button_clicked => {
                saves_folder_button_clicked();
            }
+            newversion_button_clicked => {
+                newversion_button_clicked();
+            }
        }
        if(side-bar.current-item == 1): ControllerConfig {
            input_profile_button_clicked => {
@@ -77,9 +99,26 @@ export component AppWindow inherits Window {
            join_session_button_clicked => {
                join_session_button_clicked();
            }
+            netplay_discord_button_clicked => {
+                netplay_discord_button_clicked();
+            }
+            netplay_feedback_button_clicked => {
+                netplay_feedback_button_clicked();
+            }
        }
-        if(side-bar.current-item == 3): Settings { }
-        if(side-bar.current-item == 4): About {
+        if(side-bar.current-item == 3): Cheats {
+            cheats_select_rom_clicked(rom_dir) => {
+                cheats_select_rom_clicked(rom_dir);
+            }
+            cheats_clear_clicked => {
+                cheats_clear_clicked();
+            }
+            cheat_toggled(game_crc, cheat_name, option, enabled) => {
+                cheat_toggled(game_crc,cheat_name,option,enabled);
+            }
+        }
+        if(side-bar.current-item == 4): Settings { }
+        if(side-bar.current-item == 5): About {
            wiki_button_clicked => {
                wiki_button_clicked();
            }
@@ -89,6 +128,27 @@ export component AppWindow inherits Window {
            newversion_button_clicked => {
                newversion_button_clicked();
            }
+            patreon_button_clicked => {
+                patreon_button_clicked();
+            }
+            github_sponsors_button_clicked => {
+                github_sponsors_button_clicked();
+            }
+            source_code_button_clicked => {
+                source_code_button_clicked();
+            }
        }
    }
 }
+
+export component ErrorDialog inherits Dialog {
+    in-out property <string> text;
+    title: @tr("Error");
+    Text {
+        text: text;
+    }
+
+    StandardButton {
+        kind: close;
+    }
+}
@@ -0,0 +1,90 @@
+// Copyright © SixtyFPS GmbH <info@slint.dev>
+// SPDX-License-Identifier: MIT
+
+import { ListView, HorizontalBox, VerticalBox, Button, GroupBox, CheckBox } from "std-widgets.slint";
+import { Page } from "page.slint";
+import { SettingsData } from "settings_page.slint";
+
+export global CheatsData {
+    in-out property <string> cheat_game_name;
+    in-out property <string> cheat_game_crc;
+    in-out property <[{cheat_name:string, notes:string, enabled:bool, options:[{option:string, enabled:bool}]}]> cheats;
+}
+
+export component Cheats inherits Page {
+    title: @tr("Cheats");
+    callback cheats_select_rom_clicked(string);
+    callback cheats_clear_clicked;
+    callback cheat_toggled(string, string, string, bool);
+
+    VerticalBox {
+        alignment: start;
+        HorizontalBox {
+            alignment: start;
+            if CheatsData.cheat_game_name == "": Button {
+                text: @tr("Select ROM");
+                clicked => {
+                    cheats_select_rom_clicked(SettingsData.rom_dir);
+                }
+            }
+            if CheatsData.cheat_game_name != "": Button {
+                text: CheatsData.cheat_game_name;
+                clicked => {
+                    cheats_select_rom_clicked(SettingsData.rom_dir);
+                }
+            }
+            Rectangle {
+                width: 20px;
+            }
+
+            Button {
+                text: @tr("Clear Cheats For All ROMs");
+                clicked => {
+                    cheats_clear_clicked();
+                }
+            }
+        }
+
+        Rectangle { }
+
+        if CheatsData.cheats.length > 0:ListView {
+            preferred-height: 500px;
+            preferred-width: 520px;
+            for data in CheatsData.cheats: VerticalBox {
+                Text {
+                    text: data.cheat_name;
+                    font-size: 16px;
+                    wrap: word-wrap;
+                }
+
+                if data.notes != "":Text {
+                    text: data.notes;
+                    wrap: word-wrap;
+                }
+
+                if data.options.length == 0: CheckBox {
+                    text: @tr("Enabled");
+                    checked: data.enabled;
+                    toggled => {
+                        data.enabled = self.checked;
+                        cheat_toggled(CheatsData.cheat_game_crc,data.cheat_name,"",self.checked);
+                    }
+                }
+                for item[index] in data.options: CheckBox {
+                    text: item.option;
+                    enabled: !data.enabled || (data.enabled && item.enabled);
+                    checked: item.enabled;
+                    toggled => {
+                        item.enabled = self.checked;
+                        data.enabled = self.checked;
+                        cheat_toggled(CheatsData.cheat_game_crc,data.cheat_name,item.option,self.checked);
+                    }
+                }
+                Rectangle { }
+            }
+        }
+        if CheatsData.cheats.length == 0 && CheatsData.cheat_game_name != "": Text {
+            text: @tr("No Cheats Available");
+        }
+    }
+}
@@ -13,6 +13,7 @@ export global ControllerData {
    in-out property <[string]> input_profiles;
    in-out property <[string]> controller_names;
    in-out property <[int]> selected_controller;
+    in-out property <[bool]> controller_changed;
    in-out property <bool> blank_profiles;
 }

@@ -89,10 +90,12 @@ export component ControllerConfig inherits Page {

            if !ControllerData.blank_profiles: GroupBox {
                title: @tr("Profile");
+                horizontal-stretch: 0.25;
                VerticalLayout {
                    alignment: space-between;
                    for player in [0, 1, 2, 3]: ComboBox {
                        model: ControllerData.input_profiles;
+                        min-width: self.preferred-width > 150px ? self.preferred-width : 150px;
                        current-index: ControllerData.selected_profile_binding[player];
                        selected => {
                            ControllerData.selected_profile_binding[player] = self.current-index;
@@ -103,14 +106,16 @@ export component ControllerConfig inherits Page {

            GroupBox {
                title: @tr("Controller");
+                horizontal-stretch: 0.75;
                VerticalLayout {
                    alignment: space-between;
                    for player in [0, 1, 2, 3]: ComboBox {
                        model: ControllerData.controller_names;
-                        width: self.preferred-width;
+                        min-width: self.preferred-width > 300px ? self.preferred-width : 300px;
                        current-index: ControllerData.selected_controller[player];
                        selected => {
                            ControllerData.selected_controller[player] = self.current-index;
+                            ControllerData.controller_changed[player] = true;
                        }
                    }
                }
@@ -1,8 +1,9 @@
-import { StandardButton, HorizontalBox, VerticalBox, Button, LineEdit, CheckBox } from "std-widgets.slint";
+import { StandardButton, HorizontalBox, VerticalBox, Button, LineEdit, CheckBox, Slider } from "std-widgets.slint";

 export global InputProfileData {
    in-out property <bool> dinput;
    in-out property <string> profile_name;
+    in-out property <int> deadzone;
 }

 export component InputProfileDialog inherits Window {
@@ -10,6 +11,7 @@ export component InputProfileDialog inherits Window {
    callback profile_creation_button_clicked;
    in-out property dinput <=> InputProfileData.dinput;
    in-out property profile_name <=> InputProfileData.profile_name;
+    in-out property deadzone <=> InputProfileData.deadzone;
    VerticalBox {
        HorizontalBox {
            LineEdit {
@@ -21,6 +23,28 @@ export component InputProfileDialog inherits Window {
            }
        }

+        HorizontalBox {
+            alignment: center;
+            Text {
+                text: @tr("Deadzone Percentage");
+                vertical-alignment: center;
+            }
+
+            Slider {
+                min-width: 160px;
+                maximum: 99;
+                value: InputProfileData.deadzone;
+                changed(value) => {
+                    InputProfileData.deadzone = value;
+                }
+            }
+
+            Text {
+                text: InputProfileData.deadzone + "%";
+                vertical-alignment: center;
+            }
+        }
+
        HorizontalBox {
            alignment: center;
            CheckBox {
@@ -3,6 +3,7 @@

 import { Button, HorizontalBox, VerticalBox } from "std-widgets.slint";
 import { Page } from "page.slint";
+import { AboutData, NewVersionButton } from "about_page.slint";

 export global State {
    in-out property <bool> game_running;
@@ -11,6 +12,7 @@ export global State {
 export component LocalGame inherits Page {
    callback open_rom_button_clicked;
    callback saves_folder_button_clicked;
+    callback newversion_button_clicked;
    title: @tr("Local Game");

    VerticalBox {
@@ -35,5 +37,12 @@ export component LocalGame inherits Page {
                }
            }
        }
+
+        if AboutData.has_update:NewVersionButton {
+            newversion_button_clicked => {
+                newversion_button_clicked();
+            }
+        }
+        Rectangle { }
    }
 }
@@ -5,15 +5,17 @@ export component NetplayCreate inherits Window {
    title: @tr("Netplay: Create Session");
    in-out property server_names <=> NetplayData.server_names;
    in-out property server_urls <=> NetplayData.server_urls;
-    in-out property ping <=> NetplayData.ping;
+    in-out property custom_server_url <=> NetplayData.custom_server_url;
    in-out property game_name <=> NetplayData.game_name;
    in-out property game_hash <=> NetplayData.game_hash;
+    in-out property game_cheats <=> NetplayData.game_cheats;
    in-out property pending_session <=> NetplayData.pending_session;
    in-out property rom_path <=> NetplayData.rom_path;
    in-out property peer_addr <=> NetplayData.peer_addr;
-    callback get_ping(string);
-    callback select_rom;
-    callback create_session(string, string, string, string, string, string);
+    in-out property rom_dir <=> NetplayData.rom_dir;
+    callback get_custom_url();
+    callback select_rom(string);
+    callback create_session(string, string, string, string, string, string, string);

    VerticalBox {
        HorizontalBox {
@@ -67,48 +69,62 @@ export component NetplayCreate inherits Window {
                    model: NetplayData.server_names;
                    selected => {
                        if (self.current-index >= 0) {
-                            get_ping(NetplayData.server_urls[self.current-index]);
+                            if (self.current-value == "Custom") {
+                                get_custom_url();
+                            }
                        }
                    }
                }
-
-                Text {
-                    vertical-alignment: center;
-                    text: NetplayData.ping;
-                }
            }
        }

        if NetplayData.game_name == "": Button {
            text: @tr("Select ROM");
            clicked => {
-                select_rom();
+                select_rom(NetplayData.rom_dir);
            }
        }
        if NetplayData.game_name != "": Button {
            text: NetplayData.game_name;
            clicked => {
-                select_rom();
+                select_rom(NetplayData.rom_dir);
            }
        }

        Rectangle { }

+        if NetplayData.game_cheats != "":Text {
+            text: @tr("This game has cheats enabled. Cheats will be synchronized with other players.");
+        }
        Rectangle { }

        Button {
+            property <string> server_url;
            text: @tr("Create Session");
            enabled: NetplayData.session_name != "" && NetplayData.player_name != "" && NetplayData.game_name != "" && !NetplayData.pending_session;
            clicked => {
                NetplayData.pending_session = true;
+                if (server.current-value == "Custom") {
+                    server_url = "ws://" + NetplayData.custom_server_url;
+                } else {
+                    server_url = NetplayData.server_urls[server.current-index];
+                }
                create_session(
-                    NetplayData.server_urls[server.current-index],
+                    server_url,
                    NetplayData.session_name,
                    NetplayData.player_name,
                    NetplayData.game_name,
                    NetplayData.game_hash,
+                    NetplayData.game_cheats,
                    NetplayData.password);
            }
        }
    }
 }
+
+export component DispatcherDialog inherits Dialog {
+    title: @tr("Creating Server");
+    Text {
+        text: "Creating server, please wait...This may take about 30 seconds.";
+    }
+}
@@ -5,19 +5,23 @@ export component NetplayJoin inherits Window {
    title: @tr("Netplay: Join Session");
    in-out property server_names <=> NetplayData.server_names;
    in-out property server_urls <=> NetplayData.server_urls;
-    in-out property ping <=> NetplayData.ping;
+    in-out property custom_server_url <=> NetplayData.custom_server_url;
    in-out property sessions <=> NetplayData.sessions;
    in-out property current_session <=> NetplayData.current_session;
-    in-out property ports <=> NetplayData.ports;
+    in-out property room_urls <=> NetplayData.room_urls;
+    in-out property room_ports <=> NetplayData.room_ports;
    in-out property game_name <=> NetplayData.game_name;
    in-out property game_hash <=> NetplayData.game_hash;
+    in-out property game_cheats <=> NetplayData.game_cheats;
    in-out property peer_addr <=> NetplayData.peer_addr;
    in-out property pending_session <=> NetplayData.pending_session;
+    in-out property pending_refresh <=> NetplayData.pending_refresh;
    in-out property rom_path <=> NetplayData.rom_path;
-    callback get_ping(string);
-    callback refresh_session(string);
-    callback select_rom;
-    callback join_session(string, string, string, int);
+    in-out property rom_dir <=> NetplayData.rom_dir;
+    callback refresh_session();
+    callback select_rom(string);
+    callback join_session(string, string, string, string, int);
+    preferred-width: 700px;

    VerticalBox {
        HorizontalBox {
@@ -36,42 +40,41 @@ export component NetplayJoin inherits Window {

            VerticalBox {
                Text {
-                    text: @tr("Server:");
+                    text: @tr("Custom Server URL (optional):");
                }

-                HorizontalBox {
-                    server := ComboBox {
-                        model: NetplayData.server_names;
-                        selected => {
-                            if (self.current-index >= 0) {
-                                get_ping(NetplayData.server_urls[self.current-index]);
-                            }
-                        }
-                    }
-
-                    Text {
-                        vertical-alignment: center;
-                        text: NetplayData.ping;
+                LineEdit {
+                    placeholder-text: @tr("example.com:45000");
+                    text: NetplayData.custom_server_url;
+                    edited(text) => {
+                        NetplayData.custom_server_url = text;
                    }
                }
            }
        }

-        if NetplayData.sessions.length > 0: Text {
+        if NetplayData.pending_refresh: Text {
+            text: @tr("Refreshing session list, please wait...");
+            horizontal-alignment: center;
+            vertical-alignment: center;
+        }
+        if !NetplayData.pending_refresh && NetplayData.sessions.length > 0: Text {
            text: @tr("Click on a session below to select it");
            horizontal-alignment: center;
            vertical-alignment: center;
        }
-        if NetplayData.sessions.length == 0: Text {
-            text: @tr("No sessions available. Please refresh or try a different server.");
+        if !NetplayData.pending_refresh && NetplayData.sessions.length == 0: Text {
+            text: @tr("No sessions available. Please refresh to check again.");
            horizontal-alignment: center;
            vertical-alignment: center;
        }
        StandardTableView {
            columns: [
+                { title: "Server" },
                { title: "Session Name" },
                { title: "Game Name" },
-                { title: "Password Protected" },
+                { title: "Password" },
+                { title: "Cheats" }
            ];
            rows: NetplayData.sessions;
            current-row: NetplayData.current_session;
@@ -84,9 +87,15 @@ export component NetplayJoin inherits Window {
            Rectangle { }

            Button {
+                enabled: !NetplayData.pending_refresh;
                text: @tr("Refresh Session List");
                clicked => {
-                    refresh_session(NetplayData.server_urls[server.current-index]);
+                    NetplayData.pending_refresh = true;
+                    NetplayData.current_session = -1;
+                    NetplayData.sessions = [];
+                    NetplayData.room_urls = [];
+                    NetplayData.room_ports = [];
+                    refresh_session();
                }
            }
        }
@@ -102,13 +111,13 @@ export component NetplayJoin inherits Window {
            if NetplayData.game_name == "": Button {
                text: @tr("Select ROM");
                clicked => {
-                    select_rom();
+                    select_rom(NetplayData.rom_dir);
                }
            }
            if NetplayData.game_name != "": Button {
                text: NetplayData.game_name;
                clicked => {
-                    select_rom();
+                    select_rom(NetplayData.rom_dir);
                }
            }

@@ -121,7 +130,8 @@ export component NetplayJoin inherits Window {
                    NetplayData.player_name,
                    NetplayData.game_hash,
                    NetplayData.password,
-                    NetplayData.ports[NetplayData.current_session]);
+                    NetplayData.room_urls[NetplayData.current_session],
+                    NetplayData.room_ports[NetplayData.current_session]);
                }
            }
        }
@@ -1,41 +1,35 @@
 // Copyright © SixtyFPS GmbH <info@slint.dev>
 // SPDX-License-Identifier: MIT

-import { VerticalBox, HorizontalBox, Button, StandardButton } from "std-widgets.slint";
+import { StandardButton, VerticalBox, HorizontalBox, Button, LineEdit } from "std-widgets.slint";
 import { Page } from "page.slint";

 export global NetplayData {
    in-out property <[string]> server_names;
    in-out property <[string]> server_urls;
-    in-out property <string> ping: "Ping: Unknown";
    in-out property <string> player_name;
    in-out property <string> game_name;
    in-out property <string> game_hash;
+    in-out property <string> game_cheats;
    in-out property <string> rom_path;
    in-out property <string> password;
    in-out property <string> peer_addr;
    in-out property <bool> pending_session;
+    in-out property <bool> pending_refresh;
    in-out property <string> session_name;
    in-out property <[[StandardListViewItem]]> sessions;
-    in-out property <[int]> ports;
+    in-out property <[string]> room_urls;
+    in-out property <[int]> room_ports;
    in-out property <int> current_session: -1;
-}
-
-export component NetplayDialog inherits Dialog {
-    in-out property <string> text;
-    title: @tr("Netplay Error");
-    Text {
-        text: text;
-    }
-
-    StandardButton {
-        kind: close;
-    }
+    in-out property <string> rom_dir;
+    in-out property <string> custom_server_url;
 }

 export component Netplay inherits Page {
    callback create_session_button_clicked;
    callback join_session_button_clicked;
+    callback netplay_discord_button_clicked;
+    callback netplay_feedback_button_clicked;
    title: @tr("Netplay");

    VerticalBox {
@@ -59,5 +53,45 @@ export component Netplay inherits Page {
                }
            }
        }
+
+        Rectangle {
+            height: 20px;
+        }
+
+        HorizontalBox {
+            alignment: center;
+            Button {
+                text: @tr("Netplay Discord Channel");
+                clicked => {
+                    netplay_discord_button_clicked();
+                }
+            }
+
+            Button {
+                text: @tr("Provide Feedback");
+                clicked => {
+                    netplay_feedback_button_clicked();
+                }
+            }
+        }
+    }
+}
+
+export component CustomNetplayServer inherits Dialog {
+    in-out property custom_server_url <=> NetplayData.custom_server_url;
+    title: @tr("Custom Netplay Server");
+    preferred-width: 400px;
+    callback ok_clicked(string);
+    server_url := LineEdit {
+        text: NetplayData.custom_server_url;
+        placeholder-text: "example.com:45000";
+    }
+
+    StandardButton {
+        kind: ok;
+        clicked => {
+            NetplayData.custom_server_url = server_url.text;
+            ok_clicked(NetplayData.custom_server_url);
+        }
    }
 }
@@ -7,6 +7,7 @@ export global NetplayWaitData {
    in-out property <int> port;
    in-out property <bool> can_start;
    in-out property <string> chat_text;
+    in-out property <string> ping;
 }

 export component NetplayWait inherits Window {
@@ -21,6 +22,7 @@ export component NetplayWait inherits Window {
    in-out property port <=> NetplayWaitData.port;
    in-out property can_start <=> NetplayWaitData.can_start;
    in-out property chat_text <=> NetplayWaitData.chat_text;
+    in-out property ping <=> NetplayWaitData.ping;
    callback send_chat_message(string);
    callback begin_game;

@@ -37,6 +39,11 @@ export component NetplayWait inherits Window {
            horizontal-alignment: center;
        }

+        Text {
+            text: @tr("Ping: ") + NetplayWaitData.ping;
+            horizontal-alignment: center;
+        }
+
        GridBox {
            Row {
                Text {
@@ -1,5 +1,6 @@
 export { LocalGame } from "localgame_page.slint";
 export { ControllerConfig } from "controller_page.slint";
 export { Netplay } from "netplay_page.slint";
+export { Cheats } from "cheat_page.slint";
 export { Settings } from "settings_page.slint";
 export { About } from "about_page.slint";
@@ -10,7 +10,10 @@ export global SettingsData {
    in-out property <bool> widescreen;
    in-out property <bool> apply_crt_shader;
    in-out property <bool> overclock_n64_cpu;
+    in-out property <bool> disable_expansion_pak;
    in-out property <int> resolution;
+    in-out property <bool> emulate_usb;
+    in-out property <string> rom_dir;
 }

 export component Settings inherits Page {
@@ -26,7 +29,7 @@ export component Settings inherits Page {
            }

            ComboBox {
-                model: ["1x", "2x", "4x"];
+                model: ["1x", "2x", "4x", "8x"];
                current-index: SettingsData.resolution;
                selected => {
                    SettingsData.resolution = self.current-index;
@@ -78,7 +81,9 @@ export component Settings inherits Page {
            }
        }

-        Rectangle { }
+        Rectangle {
+            height: 20px;
+        }

        HorizontalBox {
            alignment: start;
@@ -90,5 +95,27 @@ export component Settings inherits Page {
                }
            }
        }
+
+        HorizontalBox {
+            alignment: start;
+            CheckBox {
+                text: @tr("Disable Expansion Pak");
+                checked: SettingsData.disable_expansion_pak;
+                toggled => {
+                    SettingsData.disable_expansion_pak = self.checked;
+                }
+            }
+        }
+
+        HorizontalBox {
+            alignment: start;
+            CheckBox {
+                text: @tr("Emulate UNFLoader (reload emulator after changing)");
+                checked: SettingsData.emulate_usb;
+                toggled => {
+                    SettingsData.emulate_usb = self.checked;
+                }
+            }
+        }
    }
 }
@@ -28,6 +28,8 @@ const Y_AXIS_SHIFT: usize = 24;

 const MAX_AXIS_VALUE: f64 = 85.0;

+pub const DEADZONE_DEFAULT: i32 = 5;
+
 pub struct Controllers {
    pub rumble: bool,
    pub game_controller: *mut sdl3_sys::gamepad::SDL_Gamepad,
@@ -40,7 +42,7 @@ pub struct InputData {
 }

 fn bound_axis(x: &mut f64, y: &mut f64) {
-    let radius = 95.0; // this is roughly the maxium diagonal distance of the controller
+    let radius = f64::sqrt(70.0 * 70.0 + 70.0 * 70.0); // this is roughly the maxium diagonal distance of the controller

    // Calculate the distance from the origin (0, 0)
    let distance = f64::sqrt((*x) * (*x) + (*y) * (*y));
@@ -53,6 +55,24 @@ fn bound_axis(x: &mut f64, y: &mut f64) {
    }
 }

+fn apply_deadzone(x: &mut f64, y: &mut f64, deadzone: i32) {
+    let axis_deadzone = MAX_AXIS_VALUE * (deadzone as f64 / 100.0);
+
+    // Calculate the distance from the origin (0, 0)
+    let distance = f64::sqrt((*x) * (*x) + (*y) * (*y));
+
+    if distance <= axis_deadzone {
+        *x = 0.0;
+        *y = 0.0;
+        return;
+    }
+
+    let new_distance =
+        (distance - axis_deadzone) * MAX_AXIS_VALUE / (MAX_AXIS_VALUE - axis_deadzone);
+    *x = *x / distance * new_distance;
+    *y = *y / distance * new_distance;
+}
+
 fn set_axis_from_joystick(
    profile: &ui::config::InputProfile,
    joystick: *mut sdl3_sys::joystick::SDL_Joystick,
@@ -225,8 +245,9 @@ fn set_buttons_from_joystick(

    let profile_joystick_hat = profile.joystick_hat[i];
    if profile_joystick_hat.enabled
-        && unsafe { sdl3_sys::joystick::SDL_GetJoystickHat(joystick, profile_joystick_hat.id) }
-            == profile_joystick_hat.direction
+        && (unsafe { sdl3_sys::joystick::SDL_GetJoystickHat(joystick, profile_joystick_hat.id) }
+            & profile_joystick_hat.direction)
+            != 0
    {
        *keys |= 1 << i;
    }
@@ -326,8 +347,9 @@ fn change_paks(
        pressed =
            unsafe { sdl3_sys::joystick::SDL_GetJoystickButton(joystick, joystick_button.id) };
    } else if joystick_hat.enabled && !joystick.is_null() {
-        pressed = unsafe { sdl3_sys::joystick::SDL_GetJoystickHat(joystick, joystick_hat.id) }
-            == joystick_hat.direction;
+        pressed = (unsafe { sdl3_sys::joystick::SDL_GetJoystickHat(joystick, joystick_hat.id) }
+            & joystick_hat.direction)
+            != 0;
    } else if key.enabled {
        pressed = unsafe { *keyboard_state.offset(key.id as isize) };
    }
@@ -405,9 +427,11 @@ pub fn get(ui: &ui::Ui, channel: usize) -> InputData {
    }

    if !controller.is_null() {
-        (x, y) = set_axis_from_controller(profile, controller)
+        (x, y) = set_axis_from_controller(profile, controller);
+        apply_deadzone(&mut x, &mut y, profile.deadzone);
    } else if !joystick.is_null() {
-        (x, y) = set_axis_from_joystick(profile, joystick)
+        (x, y) = set_axis_from_joystick(profile, joystick);
+        apply_deadzone(&mut x, &mut y, profile.deadzone);
    }
    bound_axis(&mut x, &mut y);

@@ -462,8 +486,9 @@ fn close_controllers(
    }
 }

-pub fn configure_input_profile(ui: &mut ui::Ui, profile: String, dinput: bool) {
+pub fn configure_input_profile(ui: &mut ui::Ui, profile: String, dinput: bool, deadzone: i32) {
    ui::sdl_init(sdl3_sys::init::SDL_INIT_VIDEO);
+    ui::ttf_init();

    if profile == "default" {
        println!("Profile name cannot be default");
@@ -498,7 +523,7 @@ pub fn configure_input_profile(ui: &mut ui::Ui, profile: String, dinput: bool) {
            title.as_ptr(),
            640,
            480,
-            0,
+            sdl3_sys::video::SDL_WindowFlags(0),
            &mut window,
            &mut renderer,
        )
@@ -565,8 +590,18 @@ pub fn configure_input_profile(ui: &mut ui::Ui, profile: String, dinput: bool) {
        axis: 0,
    };

-    let font =
-        ab_glyph::FontRef::try_from_slice(include_bytes!("../../data/Roboto-Regular.ttf")).unwrap();
+    let text_engine = unsafe { sdl3_ttf_sys::ttf::TTF_CreateRendererTextEngine(renderer) };
+    let font = unsafe {
+        let font_bytes = include_bytes!("../../data/Roboto-Regular.ttf");
+        sdl3_ttf_sys::ttf::TTF_OpenFontIO(
+            sdl3_sys::everything::SDL_IOFromConstMem(
+                font_bytes.as_ptr() as *const std::ffi::c_void,
+                font_bytes.len(),
+            ),
+            true,
+            35.0,
+        )
+    };

    for (key, value) in key_labels.iter() {
        let mut event: sdl3_sys::events::SDL_Event = Default::default();
@@ -575,7 +610,8 @@ pub fn configure_input_profile(ui: &mut ui::Ui, profile: String, dinput: bool) {
        ui::video::draw_text(
            format!("Select binding for: {key}").as_str(),
            renderer,
-            &font,
+            text_engine,
+            font,
        );

        let mut key_set = false;
@@ -609,7 +645,9 @@ pub fn configure_input_profile(ui: &mut ui::Ui, profile: String, dinput: bool) {
                } else if event_type == u32::from(sdl3_sys::events::SDL_EVENT_GAMEPAD_AXIS_MOTION) {
                    let axis_value = unsafe { event.gaxis.value };
                    let axis = unsafe { event.gaxis.axis };
-                    if !open_controllers.is_empty() && axis_value.saturating_abs() > i16::MAX / 2 {
+                    if !open_controllers.is_empty()
+                        && axis_value.saturating_abs() > (i16::MAX as i32 * 3 / 4) as i16
+                    {
                        let result = ui::config::InputControllerAxis {
                            enabled: true,
                            id: axis as i32,
@@ -645,7 +683,9 @@ pub fn configure_input_profile(ui: &mut ui::Ui, profile: String, dinput: bool) {
                {
                    let axis_value = unsafe { event.jaxis.value };
                    let axis = unsafe { event.jaxis.axis };
-                    if !open_joysticks.is_empty() && axis_value.saturating_abs() > i16::MAX / 2 {
+                    if !open_joysticks.is_empty()
+                        && axis_value.saturating_abs() > (i16::MAX as i32 * 3 / 4) as i16
+                    {
                        let result = ui::config::InputControllerAxis {
                            enabled: true,
                            id: axis as i32,
@@ -660,11 +700,20 @@ pub fn configure_input_profile(ui: &mut ui::Ui, profile: String, dinput: bool) {
                }
            }
        }
+        ui::video::draw_text(
+            format!("Binding set for {key}").as_str(),
+            renderer,
+            text_engine,
+            font,
+        );
+        std::thread::sleep(std::time::Duration::from_millis(200));
    }

    close_controllers(open_joysticks, open_controllers);

    unsafe {
+        sdl3_ttf_sys::ttf::TTF_CloseFont(font);
+        sdl3_ttf_sys::ttf::TTF_DestroyRendererTextEngine(text_engine);
        sdl3_sys::render::SDL_DestroyRenderer(renderer);
        sdl3_sys::video::SDL_DestroyWindow(window);
    }
@@ -677,6 +726,7 @@ pub fn configure_input_profile(ui: &mut ui::Ui, profile: String, dinput: bool) {
        joystick_hat: new_joystick_hat,
        joystick_axis: new_joystick_axis,
        dinput,
+        deadzone,
    };
    ui.config.input.input_profiles.insert(profile, new_profile);
 }
@@ -877,6 +927,7 @@ pub fn get_default_profile() -> ui::config::InputProfile {
            axis: 0,
        }; PROFILE_SIZE],
        dinput: false,
+        deadzone: DEADZONE_DEFAULT,
    }
 }

@@ -890,7 +941,7 @@ pub fn init(ui: &mut ui::Ui) {
    for i in 0..4 {
        let controller_assignment = &ui.config.input.controller_assignment[i];
        if controller_assignment.is_some() && ui.config.input.controller_enabled[i] {
-            let mut joystick_id = 0;
+            let mut joystick_id = sdl3_sys::everything::SDL_JoystickID(0);
            let assigned_path = controller_assignment.as_ref().unwrap();

            for joystick in ui.input.joysticks.iter() {
@@ -917,7 +968,7 @@ pub fn init(ui: &mut ui::Ui) {
                if !profile.dinput {
                    let gamepad = unsafe { sdl3_sys::gamepad::SDL_OpenGamepad(joystick_id) };
                    if gamepad.is_null() {
-                        println!("could not connect gamepad: {joystick_id}")
+                        println!("could not connect gamepad: {}", u32::from(joystick_id))
                    } else {
                        ui.input.controllers[i].game_controller = gamepad;
                        let properties =
@@ -936,7 +987,7 @@ pub fn init(ui: &mut ui::Ui) {
                } else {
                    let joystick = unsafe { sdl3_sys::joystick::SDL_OpenJoystick(joystick_id) };
                    if joystick.is_null() {
-                        println!("could not connect joystick: {joystick_id}")
+                        println!("could not connect joystick: {}", u32::from(joystick_id))
                    } else {
                        ui.input.controllers[i].joystick = joystick;
                        let properties =
@@ -28,13 +28,13 @@ pub struct Paths {
 #[derive(serde::Serialize, serde::Deserialize)]
 pub struct Save {
    pub data: Vec<u8>,
-    pub written: bool,
+    pub write_pending: bool,
 }

 #[derive(serde::Serialize, serde::Deserialize)]
 pub struct RomSave {
    pub data: std::collections::HashMap<u32, u8>,
-    pub written: bool,
+    pub write_pending: bool,
 }

 #[derive(serde::Serialize, serde::Deserialize)]
@@ -120,6 +120,20 @@ fn get_save_type(rom: &[u8], game_id: &str) -> Vec<SaveTypes> {
    }
 }

+pub fn get_game_crc(rom: &[u8]) -> String {
+    let crc1 = format!(
+        "{:08X}",
+        u32::from_be_bytes(rom[0x10..0x14].try_into().unwrap())
+    );
+    let crc2 = format!(
+        "{:08X}",
+        u32::from_be_bytes(rom[0x14..0x18].try_into().unwrap())
+    );
+    let country_code = format!("{:02X}", &rom[0x3E]);
+
+    format!("{crc1}-{crc2}-C:{country_code}")
+}
+
 pub fn get_game_name(rom: &[u8]) -> String {
    let mut game_name = "".to_owned();
    let header_value = std::str::from_utf8(&rom[0x20..0x34]);
@@ -185,10 +199,13 @@ pub fn init(ui: &mut ui::Ui, rom: &[u8]) {
        .paths
        .savestate_file_path
        .clone_from(&states_path);
-    ui.storage
-        .paths
-        .savestate_file_path
-        .push(prefix.to_owned() + "-" + &ui.game_hash + ".state");
+    ui.storage.paths.savestate_file_path.push(
+        prefix.to_owned()
+            + "-"
+            + &ui.game_hash
+            + ".state"
+            + ui.storage.save_state_slot.to_string().as_str(),
+    );
 }

 pub fn load_saves(ui: &mut ui::Ui, netplay: &mut Option<netplay::Netplay>) {
@@ -327,7 +344,8 @@ pub fn compress_file(data: &[(&[u8], &str)]) -> Vec<u8> {
                .start_file(
                    item.1,
                    zip::write::SimpleFileOptions::default()
-                        .compression_method(zip::CompressionMethod::Zstd),
+                        .compression_method(zip::CompressionMethod::Zstd)
+                        .compression_level(Some(1)),
                )
                .unwrap();
            writer.write_all(item.0).unwrap();
@@ -336,15 +354,10 @@ pub fn compress_file(data: &[(&[u8], &str)]) -> Vec<u8> {
    compressed_file
 }

-fn write_rom_save(ui: &ui::Ui) {
-    let data = postcard::to_stdvec(&ui.storage.saves.romsave.data).unwrap();
-    std::fs::write(ui.storage.paths.romsave_file_path.clone(), data).unwrap();
-}
-
 fn writeback_sdcard(device: &mut device::Device) {
    let length;
    let save_data: &[u8];
-    if device.ui.storage.saves.eeprom.written {
+    if device.ui.storage.saves.eeprom.write_pending {
        if device
            .ui
            .storage
@@ -356,12 +369,15 @@ fn writeback_sdcard(device: &mut device::Device) {
            length = 4;
        }
        save_data = device.ui.storage.saves.eeprom.data.as_ref();
-    } else if device.ui.storage.saves.sram.written {
+        device.ui.storage.saves.eeprom.write_pending = false;
+    } else if device.ui.storage.saves.sram.write_pending {
        length = device.ui.storage.saves.sram.data.len() / 512;
        save_data = device.ui.storage.saves.sram.data.as_ref();
-    } else if device.ui.storage.saves.flash.written {
+        device.ui.storage.saves.sram.write_pending = false;
+    } else if device.ui.storage.saves.flash.write_pending {
        length = device.ui.storage.saves.flash.data.len() / 512;
        save_data = device.ui.storage.saves.flash.data.as_ref();
+        device.ui.storage.saves.flash.write_pending = false;
    } else {
        return;
    }
@@ -371,71 +387,108 @@ fn writeback_sdcard(device: &mut device::Device) {
        device.ui.storage.saves.sdcard.data[offset..offset + 512]
            .copy_from_slice(&save_data[i * 512..(i + 1) * 512]);
    }
-    device.ui.storage.saves.sdcard.written = true;
+    device.ui.storage.saves.sdcard.write_pending = true;
 }

 pub fn write_saves(device: &mut device::Device) {
    if device.netplay.is_none() || device.netplay.as_ref().unwrap().player_number == 0 {
        if device.ui.storage.saves.write_to_disk {
-            if device.ui.storage.saves.eeprom.written {
-                write_save(&device.ui, SaveTypes::Eeprom16k)
+            if device.ui.storage.saves.eeprom.write_pending {
+                write_save(&mut device.ui, SaveTypes::Eeprom16k)
            }
-            if device.ui.storage.saves.sram.written {
-                write_save(&device.ui, SaveTypes::Sram)
+            if device.ui.storage.saves.sram.write_pending {
+                write_save(&mut device.ui, SaveTypes::Sram)
            }
-            if device.ui.storage.saves.flash.written {
-                write_save(&device.ui, SaveTypes::Flash)
+            if device.ui.storage.saves.flash.write_pending {
+                write_save(&mut device.ui, SaveTypes::Flash)
            }
-            if device.ui.storage.saves.romsave.written {
-                write_save(&device.ui, SaveTypes::Romsave)
+            if device.ui.storage.saves.romsave.write_pending {
+                write_save(&mut device.ui, SaveTypes::Romsave)
            }
        } else {
            writeback_sdcard(device)
        }
-        if device.ui.storage.saves.mempak.written {
-            write_save(&device.ui, SaveTypes::Mempak)
+        if device.ui.storage.saves.mempak.write_pending {
+            write_save(&mut device.ui, SaveTypes::Mempak)
        }
-        if device.ui.storage.saves.sdcard.written {
-            write_save(&device.ui, SaveTypes::Sdcard)
+        if device.ui.storage.saves.sdcard.write_pending {
+            write_save(&mut device.ui, SaveTypes::Sdcard)
        }
    }
 }

-fn write_save(ui: &ui::Ui, save_type: SaveTypes) {
+pub fn save_event(device: &mut device::Device) {
+    write_saves(device);
+}
+
+pub fn schedule_save(device: &mut device::Device, save_type: SaveTypes) {
+    match save_type {
+        SaveTypes::Eeprom4k | SaveTypes::Eeprom16k => {
+            device.ui.storage.saves.eeprom.write_pending = true;
+        }
+        SaveTypes::Sram => {
+            device.ui.storage.saves.sram.write_pending = true;
+        }
+        SaveTypes::Flash => {
+            device.ui.storage.saves.flash.write_pending = true;
+        }
+        SaveTypes::Mempak => {
+            device.ui.storage.saves.mempak.write_pending = true;
+        }
+        SaveTypes::Sdcard => {
+            device.ui.storage.saves.sdcard.write_pending = true;
+        }
+        SaveTypes::Romsave => {
+            device.ui.storage.saves.romsave.write_pending = true;
+        }
+    }
+    device::events::create_event(
+        device,
+        device::events::EVENT_TYPE_SAVE,
+        device.cpu.clock_rate, // 1 second
+    );
+}
+
+fn write_save(ui: &mut ui::Ui, save_type: SaveTypes) {
    let path: &std::path::Path;
    let data: &Vec<u8>;
+    let rom_save_data: Vec<u8>;
    match save_type {
        SaveTypes::Eeprom4k | SaveTypes::Eeprom16k => {
            path = ui.storage.paths.eep_file_path.as_ref();
            data = ui.storage.saves.eeprom.data.as_ref();
+            ui.storage.saves.eeprom.write_pending = false;
        }
        SaveTypes::Sram => {
            path = ui.storage.paths.sra_file_path.as_ref();
            data = ui.storage.saves.sram.data.as_ref();
+            ui.storage.saves.sram.write_pending = false;
        }
        SaveTypes::Flash => {
            path = ui.storage.paths.fla_file_path.as_ref();
            data = ui.storage.saves.flash.data.as_ref();
+            ui.storage.saves.flash.write_pending = false;
        }
        SaveTypes::Mempak => {
            path = ui.storage.paths.pak_file_path.as_ref();
            data = ui.storage.saves.mempak.data.as_ref();
+            ui.storage.saves.mempak.write_pending = false;
        }
        SaveTypes::Sdcard => {
            path = ui.storage.paths.sdcard_file_path.as_ref();
            data = ui.storage.saves.sdcard.data.as_ref();
+            ui.storage.saves.sdcard.write_pending = false;
        }
        SaveTypes::Romsave => {
-            write_rom_save(ui);
-            return;
+            path = ui.storage.paths.romsave_file_path.as_ref();
+            rom_save_data = postcard::to_stdvec(&ui.storage.saves.romsave.data).unwrap();
+            data = rom_save_data.as_ref();
+            ui.storage.saves.romsave.write_pending = false;
        }
    }
-    let result = std::fs::write(path, data);
-    if result.is_err() {
-        panic!(
-            "could not save {} {}",
-            path.display(),
-            result.err().unwrap()
-        )
-    }
+    let save_data = data.clone();
+    let save_path = path.to_path_buf();
+    tokio::spawn(async move {
+        tokio::fs::write(save_path, save_data).await.unwrap();
+    });
 }
@@ -0,0 +1,220 @@
+use crate::ui;
+use tokio::io::{AsyncReadExt, AsyncWriteExt};
+
+const DATATYPE_TCPTEST: u32 = 0x07;
+const DATATYPE_ROMUPLOAD: u32 = 0x08;
+
+#[derive(Clone, Debug)]
+pub struct UsbData {
+    pub data: Vec<u8>,
+    pub data_type: u32,
+    pub data_size: u32,
+}
+
+fn respond_to_handshake(usb_tx: &tokio::sync::broadcast::Sender<UsbData>, data: Vec<u8>) {
+    if let Ok(data) = String::from_utf8(data)
+        && data == "N64"
+    {
+        ui::usb::send_to_usb(
+            usb_tx,
+            ui::usb::UsbData {
+                data: [b'N', b'6', b'4'].to_vec(),
+                data_type: DATATYPE_TCPTEST,
+                data_size: 3,
+            },
+        );
+    }
+}
+
+fn upload_rom(
+    weak: slint::Weak<ui::gui::AppWindow>,
+    rom: Vec<u8>,
+    usb_tx: &tokio::sync::broadcast::Sender<UsbData>,
+    cart_rx: &tokio::sync::broadcast::Receiver<UsbData>,
+) {
+    let weak_clone = weak.clone();
+    let usb_tx = usb_tx.clone();
+    let cart_rx = cart_rx.resubscribe();
+
+    weak.upgrade_in_event_loop(move |handle| {
+        let dir = std::env::temp_dir();
+        let rom_path = dir.join("rom_upload.bin");
+        std::fs::write(rom_path.clone(), rom).unwrap();
+
+        ui::gui::run_rom(
+            ui::gui::GbPaths {
+                rom: [None, None, None, None],
+                ram: [None, None, None, None],
+            },
+            rom_path,
+            ui::gui::GameSettings {
+                fullscreen: handle.get_fullscreen(),
+                overclock: handle.get_overclock_n64_cpu(),
+                disable_expansion_pak: handle.get_disable_expansion_pak(),
+                cheats: std::collections::HashMap::new(), // will be filled in later
+            },
+            None,
+            ui::Usb {
+                usb_tx: Some(usb_tx),
+                cart_rx: Some(cart_rx),
+            },
+            weak_clone,
+        );
+    })
+    .unwrap();
+}
+
+async fn handle_connection(
+    conn: tokio::net::TcpStream,
+    mut shutdown_rx: tokio::sync::watch::Receiver<()>,
+    mut usb_rx: tokio::sync::broadcast::Receiver<UsbData>,
+    usb_tx: tokio::sync::broadcast::Sender<UsbData>,
+    cart_tx: tokio::sync::broadcast::Sender<UsbData>,
+    cart_rx: tokio::sync::broadcast::Receiver<UsbData>,
+    weak: slint::Weak<ui::gui::AppWindow>,
+) {
+    let (mut incoming, mut outgoing) = conn.into_split();
+
+    let mut shutdown_rx_clone = shutdown_rx.clone();
+    tokio::spawn(async move {
+        loop {
+            tokio::select! {
+                data = usb_rx.recv() => {
+                    match data {
+                        Ok(data) => {
+                            let mut output: Vec<u8> = vec![];
+                            output.extend_from_slice(&data.data_type.to_be_bytes());
+                            output.extend_from_slice(&data.data_size.to_be_bytes());
+                            output.extend_from_slice(&data.data);
+                            if outgoing.write_all(&output).await.is_err() {
+                                break;
+                            }
+                        }
+                        Err(tokio::sync::broadcast::error::RecvError::Lagged(_)) => {
+                            panic!("usb_rx lagged");
+                        }
+                        Err(tokio::sync::broadcast::error::RecvError::Closed) => {
+                          break;
+                        }
+                    }
+                }
+                _ = shutdown_rx_clone.changed() => {
+                    break;
+                }
+            }
+        }
+    });
+
+    let mut incoming_buffer = vec![0u8; 4096];
+    let mut data_type: Option<u32> = None;
+    let mut data_size: Option<u32> = None;
+    let mut usb_buffer: Vec<u8> = vec![];
+    loop {
+        tokio::select! {
+            result = incoming.read(&mut incoming_buffer) => {
+                match result {
+                    Ok(0) => {
+                        break;
+                    }
+                    Ok(n) => {
+                        usb_buffer.extend_from_slice(&incoming_buffer[0..n]);
+                        if data_type.is_none() {
+                            if usb_buffer.len() < 4 {
+                                continue;
+                            } else {
+                                data_type = Some(u32::from_be_bytes(usb_buffer[0..4].try_into().unwrap()));
+                                usb_buffer.drain(0..4);
+                            }
+                        }
+                        if data_type.is_some() && data_size.is_none() {
+                            if usb_buffer.len() < 4 {
+                                continue;
+                            } else {
+                                data_size = Some(u32::from_be_bytes(usb_buffer[0..4].try_into().unwrap()));
+                                usb_buffer.drain(0..4);
+                            }
+                        }
+                        if let Some(d_type) = data_type && let Some(d_size) = data_size {
+                            let length = d_size as usize;
+                            if usb_buffer.len() >= length {
+                                let usb_data = UsbData {
+                                    data: usb_buffer[0..length].to_vec(),
+                                    data_type: d_type,
+                                    data_size: d_size,
+                                };
+                                usb_buffer.drain(0..length);
+                                if usb_data.data_type == DATATYPE_TCPTEST {
+                                    respond_to_handshake(&usb_tx,usb_data.data);
+                                } else if usb_data.data_type == DATATYPE_ROMUPLOAD {
+                                    upload_rom(weak.clone(), usb_data.data,&usb_tx,&cart_rx);
+                                } else {
+                                    cart_tx.send(usb_data).unwrap();
+                                }
+                                data_type = None;
+                                data_size = None;
+                            }
+                        }
+                    }
+                    Err(_e) => {
+                        break;
+                    }
+                }
+            }
+            _ = shutdown_rx.changed() => {
+                break;
+            }
+        }
+    }
+}
+
+pub fn init(
+    weak: slint::Weak<ui::gui::AppWindow>,
+) -> (Option<tokio::sync::watch::Sender<()>>, ui::Usb) {
+    let (shutdown_tx, mut shutdown_rx) = tokio::sync::watch::channel(());
+    let (usb_tx, usb_rx): (
+        tokio::sync::broadcast::Sender<UsbData>,
+        tokio::sync::broadcast::Receiver<UsbData>,
+    ) = tokio::sync::broadcast::channel(1024);
+    let (cart_tx, cart_rx): (
+        tokio::sync::broadcast::Sender<UsbData>,
+        tokio::sync::broadcast::Receiver<UsbData>,
+    ) = tokio::sync::broadcast::channel(1024);
+
+    let usb_tx_clone = usb_tx.clone();
+    let cart_rx_clone = cart_rx.resubscribe();
+    tokio::spawn(async move {
+        let listener = tokio::net::TcpListener::bind("localhost:64000")
+            .await
+            .unwrap();
+
+        loop {
+            tokio::select! {
+                res = listener.accept() => {
+                    if let Ok((c,_)) = res {
+                        handle_connection(c,shutdown_rx.clone(),usb_rx.resubscribe(),usb_tx.clone(),cart_tx.clone(),cart_rx.resubscribe(),weak.clone()).await;
+                    } else {
+                        break;
+                    }
+                }
+                _ = shutdown_rx.changed() => {
+                    break;
+                }
+            }
+        }
+    });
+    (
+        Some(shutdown_tx),
+        ui::Usb {
+            usb_tx: Some(usb_tx_clone),
+            cart_rx: Some(cart_rx_clone),
+        },
+    )
+}
+
+pub fn close(shutdown_tx: &tokio::sync::watch::Sender<()>) {
+    let _ = shutdown_tx.send(());
+}
+
+pub fn send_to_usb(usb_tx: &tokio::sync::broadcast::Sender<UsbData>, buffer: UsbData) {
+    usb_tx.send(buffer).unwrap();
+}
@@ -1,10 +1,10 @@
 #![allow(non_snake_case)]
 include!(concat!(env!("OUT_DIR"), "/parallel_bindings.rs"));
 use crate::{device, ui};
-use ab_glyph::{Font, ScaleFont};

 pub fn init(device: &mut device::Device) {
    ui::sdl_init(sdl3_sys::init::SDL_INIT_VIDEO);
+    ui::ttf_init();

    let title = std::ffi::CString::new("gopher64").unwrap();

@@ -37,10 +37,18 @@ pub fn init(device: &mut device::Device) {
        sdl3_sys::video::SDL_CreateWindow(title.as_ptr(), window_width, window_height, flags)
    };
    if device.ui.video.window.is_null() {
-        panic!("Could not create window");
+        panic!("Could not create window: {}", unsafe {
+            std::ffi::CStr::from_ptr(sdl3_sys::error::SDL_GetError())
+                .to_str()
+                .unwrap()
+        });
    }
    if !unsafe { sdl3_sys::video::SDL_ShowWindow(device.ui.video.window) } {
-        panic!("Could not show window");
+        panic!("Could not show window: {}", unsafe {
+            std::ffi::CStr::from_ptr(sdl3_sys::error::SDL_GetError())
+                .to_str()
+                .unwrap()
+        });
    }
    unsafe {
        sdl3_sys::everything::SDL_HideCursor();
@@ -66,7 +74,15 @@ pub fn init(device: &mut device::Device) {
        crt: device.ui.config.video.crt,
    };

-    unsafe { rdp_init(device.ui.video.window as *mut std::ffi::c_void, gfx_info) }
+    unsafe {
+        let font_bytes = include_bytes!("../../data/Roboto-Regular.ttf");
+        rdp_init(
+            device.ui.video.window as *mut std::ffi::c_void,
+            gfx_info,
+            font_bytes.as_ptr() as *const std::ffi::c_void,
+            font_bytes.len(),
+        )
+    }
 }

 pub fn close(ui: &ui::Ui) {
@@ -77,10 +93,13 @@ pub fn close(ui: &ui::Ui) {
 }

 pub fn update_screen() {
-    // when the window is closed, running is set to false
    unsafe { rdp_update_screen() }
 }

+pub fn render_frame() {
+    unsafe { rdp_render_frame() }
+}
+
 pub fn state_size() -> usize {
    unsafe { rdp_state_size() }
 }
@@ -114,7 +133,20 @@ pub fn load_state(device: &mut device::Device, rdp_state: *const u8) {
    }
 }

-pub fn check_callback(device: &mut device::Device) {
+pub fn pause_loop(frame_time: f64) {
+    let mut paused = true;
+    let mut frame_advance = false;
+    while paused && !frame_advance {
+        std::thread::sleep(std::time::Duration::from_secs_f64(frame_time));
+        unsafe { sdl3_sys::events::SDL_PumpEvents() };
+        let callback = unsafe { rdp_check_callback() };
+        paused = callback.paused;
+        frame_advance = callback.frame_advance;
+    }
+}
+
+pub fn check_callback(device: &mut device::Device) -> (bool, bool) {
+    let mut speed_limiter_toggled = false;
    let callback = unsafe { rdp_check_callback() };
    device.cpu.running = callback.emu_running;
    if device.netplay.is_none() {
@@ -123,14 +155,31 @@ pub fn check_callback(device: &mut device::Device) {
        } else if callback.load_state {
            device.load_state = true;
        }
-        device.vi.enable_speed_limiter = callback.enable_speedlimiter;
+        if device.vi.enable_speed_limiter != callback.enable_speedlimiter {
+            speed_limiter_toggled = true;
+            device.vi.enable_speed_limiter = callback.enable_speedlimiter;
+        }
    }

+    if device.ui.storage.save_state_slot != callback.save_state_slot {
+        ui::video::onscreen_message(
+            &device.ui,
+            &format!("Switching savestate slot to {}", callback.save_state_slot,),
+        );
+        device.ui.storage.save_state_slot = callback.save_state_slot;
+        device
+            .ui
+            .storage
+            .paths
+            .savestate_file_path
+            .set_extension("state".to_owned() + callback.save_state_slot.to_string().as_str());
+    }
    if callback.lower_volume {
        ui::audio::lower_audio_volume(&mut device.ui);
    } else if callback.raise_volume {
        ui::audio::raise_audio_volume(&mut device.ui);
    }
+    (speed_limiter_toggled, callback.paused)
 }

 pub fn set_register(reg: u32, value: u32) {
@@ -143,60 +192,34 @@ pub fn process_rdp_list() -> u64 {
    unsafe { rdp_process_commands() }
 }

+pub fn check_framebuffers(address: u32, length: u32) {
+    unsafe { rdp_check_framebuffers(address, length) }
+}
+
+pub fn onscreen_message(_ui: &ui::Ui, message: &str) {
+    unsafe { rdp_onscreen_message(std::ffi::CString::new(message).unwrap().as_ptr()) };
+}
+
 pub fn draw_text(
    text: &str,
    renderer: *mut sdl3_sys::render::SDL_Renderer,
-    font: &ab_glyph::FontRef,
+    text_engine: *mut sdl3_ttf_sys::ttf::TTF_TextEngine,
+    font: *mut sdl3_ttf_sys::ttf::TTF_Font,
 ) {
-    // Clear the canvas
    unsafe {
-        sdl3_sys::render::SDL_SetRenderDrawColor(
-            renderer,
+        let (mut w, mut h) = (0, 0);
+        sdl3_sys::render::SDL_GetRenderOutputSize(renderer, &mut w, &mut h);
+
+        let ttf_text = sdl3_ttf_sys::ttf::TTF_CreateText(
+            text_engine,
+            font,
+            std::ffi::CString::new(text).unwrap().as_ptr(),
            0,
-            0,
-            0,
-            sdl3_sys::pixels::SDL_ALPHA_OPAQUE,
        );
-        sdl3_sys::render::SDL_RenderClear(renderer);
-    };

-    let text_size = 40.0;
-    let (mut w, mut h) = (0, 0);
-    unsafe { sdl3_sys::render::SDL_GetRenderOutputSize(renderer, &mut w, &mut h) };
-    let x_start = 20.0;
-    let y_start = (h / 2) as f32;
-
-    let mut x_offset = 0.0;
-    for c in text.chars() {
-        let q_glyph_id = font.glyph_id(c);
-        let q_glyph = q_glyph_id.with_scale(text_size);
-
-        if let Some(q) = font.outline_glyph(q_glyph) {
-            q.draw(|x, y, c| {
-                if c > 0.5 {
-                    unsafe {
-                        sdl3_sys::render::SDL_SetRenderDrawColor(
-                            renderer,
-                            255,
-                            255,
-                            255,
-                            sdl3_sys::pixels::SDL_ALPHA_OPAQUE,
-                        );
-                        sdl3_sys::render::SDL_RenderPoint(
-                            renderer,
-                            x_start + x_offset + x as f32 - q.px_bounds().width()
-                                + q.px_bounds().max.x,
-                            y_start + y as f32 - q.px_bounds().height() + q.px_bounds().max.y,
-                        );
-                    };
-                }
-            });
-        }
-        x_offset += font.as_scaled(text_size).h_advance(q_glyph_id);
-    }
-
-    // Present the canvas
-    if !unsafe { sdl3_sys::render::SDL_RenderPresent(renderer) } {
-        panic!("Could not present renderer");
+        sdl3_sys::everything::SDL_RenderClear(renderer);
+        sdl3_ttf_sys::ttf::TTF_DrawRendererText(ttf_text, 20.0, h as f32 / 2.0);
+        sdl3_sys::render::SDL_RenderPresent(renderer);
+        sdl3_ttf_sys::ttf::TTF_DestroyText(ttf_text);
    }
 }
@@ -1,19 +1,51 @@
-use crate::ui;
+use crate::gui;
+use slint::ComponentHandle;

 pub fn prompt_for_match(
    words: &[String],
-    window_notifier: &tokio::sync::mpsc::Sender<Option<Vec<String>>>,
-    word_index_receiver: &mut tokio::sync::mpsc::Receiver<String>,
+    weak_vru: &slint::Weak<gui::AppWindow>,
+    frame_time: f64,
 ) -> u16 {
    let mut dedup_words = words.to_owned();
    dedup_words.sort();
    dedup_words.dedup();
-    window_notifier.try_send(Some(dedup_words)).unwrap();
-    let mut result = word_index_receiver.try_recv();
+
+    let (tx, mut rx) = tokio::sync::mpsc::channel(1);
+
+    weak_vru
+        .upgrade_in_event_loop(move |_handle| {
+            let vru_dialog = gui::VruDialog::new().unwrap();
+            let vru_dialog_weak = vru_dialog.as_weak();
+
+            let tx_clicked = tx.clone();
+
+            vru_dialog.on_vru_button_clicked(move |chosen_word| {
+                tx_clicked.try_send(chosen_word.to_string()).unwrap();
+                vru_dialog_weak.unwrap().window().hide().unwrap();
+            });
+
+            vru_dialog.window().on_close_requested(move || {
+                tx.try_send("".to_string()).unwrap();
+                slint::CloseRequestResponse::HideWindow
+            });
+
+            let words_vec = slint::VecModel::default();
+            for word in dedup_words {
+                words_vec.push(word.into());
+            }
+            let words_model: std::rc::Rc<slint::VecModel<slint::SharedString>> =
+                std::rc::Rc::new(words_vec);
+            vru_dialog.set_words(slint::ModelRc::from(words_model));
+
+            vru_dialog.show().unwrap();
+        })
+        .unwrap();
+
+    let mut result = rx.try_recv();
    while result.is_err() {
-        result = word_index_receiver.try_recv();
-        std::thread::sleep(std::time::Duration::from_secs_f64(1.0 / 60.0));
-        ui::video::update_screen(); // so the OS doesn't complain about the game window being frozen
+        result = rx.try_recv();
+        std::thread::sleep(std::time::Duration::from_secs_f64(frame_time));
+        unsafe { sdl3_sys::events::SDL_PumpEvents() }; // so the OS doesn't complain about the game window being frozen
    }
    for (i, v) in words.iter().enumerate() {
        if *v == *result.as_ref().unwrap() {