coderzie/chip8

Chip8

Chip8 Emulator in JavaScript This is a Chip8 emulator implemented in JavaScript. The Chip8 is a simple virtual machine developed in the 1970s and primarily used to create video games. This emulator allows you to run Chip8 ROMs and experience the games on modern systems.

Getting Started To use the emulator, follow these steps:

Clone or download the repository to your local machine. Open the index.html file in your web browser. You should see the emulator interface and it will start with airplane game.

To add different games I have attached the chip8_roms folder. choose a file and add in roms folder.

Now change the rom name in chip8.js to the rom you want.

The emulator will load the ROM and start running it. Keyboard Mapping The Chip8 system uses a 16-key hexadecimal keypad. The emulator maps these keys to your computer keyboard as follows:

CHIP8 KEYPAD KEYBOARD +-+-+-+-+ +-+-+-+-+ |1|2|3|C| |1|2|3|4| +-+-+-+-+ ==> +-+-+-+-+ |4|5|6|D| ==> |Q|W|E|R| +-+-+-+-+ ==> +-+-+-+-+ |7|8|9|E| |A|S|D|F| +-+-+-+-+ +-+-+-+-+ |A|0|B|F| |Z|X|C|V| +-+-+-+-+ +-+-+-+-+

Controls The emulator provides the following controls:

Features The emulator implements all the standard Chip8 instructions, including arithmetic, logical, and control flow operations. The display is rendered using HTML5 Canvas. The emulator provides sound emulation using the Web Audio API. The execution speed can be adjusted to match the original Chip8 clock speed. The emulator supports most Chip8 ROMs available online. Compatibility This emulator has been tested on modern web browsers, including Chrome, Firefox, and Safari. It should work on most platforms, including Windows, macOS, and Linux.

Resources If you want to learn more about the Chip8 system or find additional ROMs to run on the emulator, here are some useful resources:

Wikipedia - Chip-8 CHIP-8 Archive

Acknowledgements This emulator is based on the work of freecode camp: https://www.freecodecamp.org/news/creating-your-very-own-chip-8-emulator/

Cowgod's Chip-8 Technical Reference The CHIP-8 Cookbook Chip8 Emulator in JavaScript by Colin Eberhardt