Chip-8: a Chip-8 emulator / VM for the browser

A Chip-8 virtual machine and debugger built in JavaScript, using HTML Canvas for display.

Running

Start a web server in the current directory. If you have python 2.x installed:

$ python -m SimpleHTTPServer

(See this list for other ways to start a static web server.)

Reload the page each time you change something, or check out Guardfile to setup automatic reloading.

Only 12 out of the 35 opcodes are supported. Mainly for loading values in registers and drawing sprites:

00E0 - Clear the display.
00EE - Return from a subroutine.
1nnn - Jump to location nnn.
2nnn - Call subroutine at nnn.
3xkk - Skip next instruction if Vx = kk.
4xkk - Skip next instruction if Vx != kk.
6xkk - Set Vx = kk.
7xkk - Set Vx = Vx + kk.
Annn - Set I = nnn.
Cxkk - Set Vx = random byte AND kk.
Dxyn - Display n-byte sprite starting at memory location I at (Vx, Vy), set VF = collision.
Fx1E - Set I = I + Vx.

The timers, input and sound are not implemented.

You are free to modify and distribute this however you want. Except for teaching purposes.

Name		Name	Last commit message	Last commit date
Latest commit History 27 Commits
roms		roms
vendor		vendor
Guardfile		Guardfile
README.md		README.md
debugger.js		debugger.js
display.js		display.js
index.html		index.html
utils.js		utils.js
vm.js		vm.js