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‎.github/workflows/ci.yml‎

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name: CI
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on:
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push:
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branches: [main, master]
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pull_request:
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branches: [main, master]
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jobs:
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build-linux:
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name: Linux (GCC)
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runs-on: ubuntu-24.04
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strategy:
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matrix:
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build_type: [Release, Debug]
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steps:
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- uses: actions/checkout@v4
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- name: Install dependencies
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run: |
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sudo apt-get update
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sudo apt-get install -y cmake g++ pkg-config libgl-dev libvulkan-dev zlib1g-dev
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- name: Configure
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run: cmake -B build -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
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- name: Build
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run: cmake --build build -j$(nproc)
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- name: Verify binary
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run: test -f build/YAPS1
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build-linux-clang:
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name: Linux (Clang)
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runs-on: ubuntu-24.04
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steps:
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- uses: actions/checkout@v4
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- name: Install dependencies
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run: |
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sudo apt-get update
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sudo apt-get install -y cmake clang pkg-config libgl-dev libvulkan-dev zlib1g-dev
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- name: Configure
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run: CC=clang CXX=clang++ cmake -B build -DCMAKE_BUILD_TYPE=Release
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- name: Build
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run: cmake --build build -j$(nproc)
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build-windows:
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name: Windows (MSVC)
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runs-on: windows-latest
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steps:
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- uses: actions/checkout@v4
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- name: Configure
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run: cmake -B build -DCMAKE_BUILD_TYPE=Release
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- name: Build
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run: cmake --build build --config Release
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- name: Verify binary
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run: Test-Path build/Release/YAPS1.exe
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build-macos:
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name: macOS (Clang)
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runs-on: macos-latest
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steps:
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- uses: actions/checkout@v4
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- name: Configure
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run: cmake -B build -DCMAKE_BUILD_TYPE=Release
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- name: Build
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run: cmake --build build -j$(sysctl -n hw.ncpu)

‎.github/workflows/release.yml‎

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name: Release
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on:
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push:
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tags:
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- 'v*'
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permissions:
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contents: write
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jobs:
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release:
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name: Build & Release (${{ matrix.os }}, ${{ matrix.asset_suffix }})
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runs-on: ${{ matrix.os }}
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strategy:
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fail-fast: false
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matrix:
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include:
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- os: ubuntu-24.04
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artifact_name: YAPS1
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asset_suffix: linux-x86_64
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cc: gcc
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cxx: g++
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- os: ubuntu-24.04
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artifact_name: YAPS1
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asset_suffix: linux-x86_64-clang
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cc: clang
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cxx: clang++
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- os: windows-latest
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artifact_name: YAPS1.exe
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asset_suffix: windows-x86_64
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- os: macos-latest
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artifact_name: YAPS1
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asset_suffix: macos-arm64
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steps:
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- uses: actions/checkout@v4
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- name: Install Linux dependencies
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if: runner.os == 'Linux'
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run: |
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sudo apt-get update
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sudo apt-get install -y cmake pkg-config libgl-dev libvulkan-dev zlib1g-dev
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- name: Configure (Linux)
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if: runner.os == 'Linux'
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run: |
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CC=${{ matrix.cc }} \
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CXX=${{ matrix.cxx }} \
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cmake -B build -DCMAKE_BUILD_TYPE=Release
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- name: Configure (Windows)
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if: runner.os == 'Windows'
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run: cmake -B build -DCMAKE_BUILD_TYPE=Release
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- name: Configure (macOS)
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if: runner.os == 'macOS'
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run: cmake -B build -DCMAKE_BUILD_TYPE=Release
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- name: Build
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shell: bash
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run: |
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if [ "${{ runner.os }}" = "Windows" ]; then
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cmake --build build --config Release
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else
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cmake --build build --config Release -j$(nproc 2>/dev/null || sysctl -n hw.ncpu 2>/dev/null || echo 4)
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fi
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- name: Locate binary
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id: bin
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shell: bash
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run: |
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if [ "${{ runner.os }}" = "Windows" ]; then
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BINARY="build/Release/YAPS1.exe"
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else
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BINARY="build/YAPS1"
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fi
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echo "path=$BINARY" >> "$GITHUB_OUTPUT"
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if [ ! -f "$BINARY" ]; then
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echo "Binary not found: $BINARY"
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find build -type f
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exit 1
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fi
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- name: Package (Linux)
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if: runner.os == 'Linux'
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run: |
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cp "${{ steps.bin.outputs.path }}" "YAPS1-${{ matrix.asset_suffix }}"
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strip -s "YAPS1-${{ matrix.asset_suffix }}"
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tar czf "YAPS1-${{ matrix.asset_suffix }}.tar.gz" "YAPS1-${{ matrix.asset_suffix }}"
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- name: Package (macOS)
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if: runner.os == 'macOS'
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run: |
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cp "${{ steps.bin.outputs.path }}" "YAPS1-${{ matrix.asset_suffix }}"
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strip "YAPS1-${{ matrix.asset_suffix }}"
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tar czf "YAPS1-${{ matrix.asset_suffix }}.tar.gz" "YAPS1-${{ matrix.asset_suffix }}"
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- name: Package (Windows)
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if: runner.os == 'Windows'
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shell: pwsh
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run: |
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Compress-Archive `
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-Path "build/Release/YAPS1.exe" `
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-DestinationPath "YAPS1-${{ matrix.asset_suffix }}.zip"
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- name: Upload artifact
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uses: actions/upload-artifact@v4
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with:
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name: YAPS1-${{ matrix.asset_suffix }}
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path: |
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YAPS1-${{ matrix.asset_suffix }}.tar.gz
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YAPS1-${{ matrix.asset_suffix }}.zip
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if-no-files-found: ignore
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- name: Create GitHub Release
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uses: softprops/action-gh-release@v2
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with:
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files: |
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YAPS1-${{ matrix.asset_suffix }}.tar.gz
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YAPS1-${{ matrix.asset_suffix }}.zip
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generate_release_notes: true

‎.gitignore‎

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# Build
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build/
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cmake-build-*/
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out/
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*.o
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*.obj
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*.exe
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*.out
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*.app
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# IDE
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.vs/
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.vscode/
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.idea/
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*.sln
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*.vcxproj*
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*.swp
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*.swo
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*~
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# OS
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.DS_Store
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Thumbs.db
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# Project
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*.mcd
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*.bin
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*.cue
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*.iso
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*.img
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config.toml
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# Release archives
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*.zip
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*.tar.gz
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*.7z

‎CMakeLists.txt‎

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cmake_minimum_required(VERSION 3.22)
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project(YAPS1 VERSION 1.2.0 LANGUAGES CXX)
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set(CMAKE_CXX_STANDARD 23)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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set(CMAKE_CXX_EXTENSIONS OFF)
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# ---- Compiler options ----
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if(MSVC)
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add_compile_options(/W4 /WX /utf-8 /permissive-)
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add_compile_definitions(_CRT_SECURE_NO_WARNINGS NOMINMAX)
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else()
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add_compile_options(-Wall -Wextra -Wpedantic -fsanitize=address,undefined -g)
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add_link_options(-fsanitize=address,undefined)
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endif()
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if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND NOT APPLE)
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add_compile_definitions(__cpp_concepts=202002L)
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endif()
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# ---- Dependencies (bundled) ----
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include(FetchContent)
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# fmt — for formatted logging
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FetchContent_Declare(
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fmt
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GIT_REPOSITORY https://github.com/fmtlib/fmt.git
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GIT_TAG 10.2.1
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)
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FetchContent_GetProperties(fmt)
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if(NOT fmt_POPULATED)
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FetchContent_Populate(fmt)
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# Patch fmt/core.h and fmt/base.h to disable consteval on Apple Clang 21+
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foreach(FMT_HEADER "${fmt_SOURCE_DIR}/include/fmt/core.h" "${fmt_SOURCE_DIR}/include/fmt/base.h")
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if(EXISTS "${FMT_HEADER}")
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file(READ "${FMT_HEADER}" FMT_CONTENT)
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string(REPLACE "#ifndef FMT_CONSTEVAL" "#if defined(__APPLE__)\n# define FMT_CONSTEVAL\n#endif\n#ifndef FMT_CONSTEVAL" FMT_CONTENT_PATCHED "${FMT_CONTENT}")
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file(WRITE "${FMT_HEADER}" "${FMT_CONTENT_PATCHED}")
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endif()
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endforeach()
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add_subdirectory(${fmt_SOURCE_DIR} ${fmt_BINARY_DIR} EXCLUDE_FROM_ALL)
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endif()
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# SDL3
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set(SDL_TESTS OFF CACHE BOOL "" FORCE)
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set(SDL_TEST_LIBRARY OFF CACHE BOOL "" FORCE)
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set(SDL_STATIC ON CACHE BOOL "" FORCE)
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set(SDL_SHARED OFF CACHE BOOL "" FORCE)
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set(SDL_X11 OFF CACHE BOOL "" FORCE)
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set(SDL_WAYLAND OFF CACHE BOOL "" FORCE)
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set(SDL_UNIX_CONSOLE_BUILD ON CACHE BOOL "" FORCE)
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FetchContent_Declare(
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SDL3
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GIT_REPOSITORY https://github.com/libsdl-org/SDL.git
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GIT_TAG release-3.2.0
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CMAKE_ARGS -DSDL_TESTS=OFF -DSDL_TEST_LIBRARY=OFF -DSDL_STATIC=ON -DSDL_SHARED=OFF -DSDL_X11=OFF -DSDL_WAYLAND=OFF -DSDL_UNIX_CONSOLE_BUILD=ON
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)
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FetchContent_MakeAvailable(SDL3)
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# ---- Vulkan (optional) ----
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find_package(Vulkan QUIET)
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if(Vulkan_FOUND)
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add_compile_definitions(YAPS1_HAS_VULKAN)
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message(STATUS "Vulkan found — Vulkan renderer will be available")
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else()
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message(STATUS "Vulkan NOT found — software renderer only")
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endif()
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# ---- Project source files ----
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file(GLOB_RECURSE YAPS1_SOURCES
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src/*.cpp
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src/*.h
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)
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add_executable(YAPS1 ${YAPS1_SOURCES})
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target_include_directories(YAPS1 PRIVATE
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${CMAKE_CURRENT_SOURCE_DIR}/src
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${CMAKE_CURRENT_SOURCE_DIR}
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)
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# Link SDL3 and fmt-header-only
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target_link_libraries(YAPS1 PRIVATE SDL3::SDL3 fmt::fmt-header-only)
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# Link threading library on non-Windows
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if(NOT WIN32)
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find_package(Threads REQUIRED)
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target_link_libraries(YAPS1 PRIVATE Threads::Threads)
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endif()
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# Link Vulkan if available
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if(Vulkan_FOUND)
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target_link_libraries(YAPS1 PRIVATE Vulkan::Vulkan)
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endif()
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# Zlib (for compressed save states and CHD support)
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find_package(ZLIB QUIET)
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if(ZLIB_FOUND)
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target_link_libraries(YAPS1 PRIVATE ZLIB::ZLIB)
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target_compile_definitions(YAPS1 PUBLIC YAPS1_HAS_ZLIB)
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message(STATUS "Zlib found — CHD support and compressed save states enabled")
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else()
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message(STATUS "Zlib NOT found — CHD support will be unavailable")
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endif()
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# ---- Install ----
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install(TARGETS YAPS1 RUNTIME DESTINATION bin)
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# ---- Tests ----
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enable_testing()
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add_executable(test_emulator
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tests/test_emulator.cpp
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src/cpu/cpu.cpp
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src/cpu/cop0.cpp
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)
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target_include_directories(test_emulator PRIVATE
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${CMAKE_CURRENT_SOURCE_DIR}/src
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${CMAKE_CURRENT_SOURCE_DIR}
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)
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target_link_libraries(test_emulator PRIVATE fmt::fmt-header-only)
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add_test(NAME test_emulator COMMAND test_emulator)
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# ---- Default config / mapping files ----
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# These are copied on first run by the emulator if they don't exist.

‎LICENSE‎

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MIT License
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Copyright (c) 2026 Aarvsn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.

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