Chip-8 Emulator

A Chip-8 Emulator written in C++ using SDL2 and SDL_Mixer.

Screenshots

CONNECT4	TETRIS	MAZE

Usage

SDL2 and SDL_Mixer must be installed. For Mac users, they can be installed with Homebrew:

    brew install sdl2 sdl_mixer

Afterwards, compile and run.

    cd src
    make
    ./main.out <ROM>

If <ROM> is not given, PONG2 will be loaded instead by default.

Notes

• TICTAC and CONNECT4 only work properly when INSTRUCTIONS_PER_STEP = 1 in main.cpp
• Changing INSTRUCTIONS_PER_STEP will make some games run better
• The original Chip8 numpad is not used. The keypad is defined as:

  Current    instead of    Original
  1 2 3 4                  1 2 3 C
  Q W E R                  4 5 6 D
  A S D F                  7 8 9 E
  Z X C V                  A 0 B F

Resources Used

• Cowgod Technical Reference
• How to write an emulator (CHIP-8 interpreter) by Laurence Muller
• Wikipedia: Chip-8
• Zophar's Chip-8 Roms
• BC_test.ch8 by BestCoder
  • rom
  • rom doc
• test_opcode.ch8 by corax89