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About

This is an implementation of the CHIP-8 emulator using C++17, SDL2 (2D Texture) and SDL Audio.

Usage

Once compiled and linked, you can run the emulator using the following command structure: ./build/chip8 <cyclesPerFrame> <frameDurationTargetMs> <pixelScale> <ROM_filepath>.

Example: ./build/chip8 10 16 10 ./roms/Tetris_Fran_Dachille_1991.ch8

Screenshots

Environment

If using GCC to compile and link

You need to inform gcc where to look for header files with the -I flag, and where to look for the compiled libraries with -L flag. Specific for SDL2, you can get both using the sdl2-config like for example gcc ./src/*.c 'sdl2-config --libs --cflags' -Wall -lm -o build/app.

If using VSCode as IDE

You may need to create/update the file ./vscode/c_cpp_properties.json at the root of your project to inform the VSCode where to look for SDL2 include files with the includePath property:

  • "includePath": ["${workspaceFolder}/**", "/usr/local/include/SDL2"],
  • "includePath": ["${workspaceFolder}/**", "/opt/homebrew/include/SDL2"]

With that, your IDE should not complain about missing includes when using #include <SDL.h>.

Installing SDL2 on MacOS

  • brew install sdl2
  • sdl2-config --version: 2.26.1
  • sdl2-config --cflags: -I/usr/local/include/SDL2 -D_THREAD_SAFE
  • sdl2-config --libs: -L/usr/local/lib -lSDL2