This emulator has been refactored as a core for Atlantis.

What follows is its original README, information in which may not be presently valid.

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JavaScript GameBoy Color Emulator

Copyright (C) 2010 - 2012 Grant Galitz

A GameBoy Color emulator that utilizes HTML5 canvas and JavaScript audio APIs to provide a full emulation of the console.

License:

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation. The full license is available at http://www.gnu.org/licenses/gpl.html This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

Known browsers to work well in:

• Firefox 4-27 (Windows 7, Windows Vista, Mac OS X)
• Google Chrome 18+
• Safari 5.1.5+

Browsers that suck at performance or fail to run the code correctly:

• Firefox 4+ (*nix versions of Firefox have audio lockup bugs) - Retest this
• Firefox 28+ (Web Audio API creates 500 ms or greater latency, forced by Firefox)
• Opera (Crashes + Slow + Graphics Glitches) - Retest this
• Safari 5.1.X (Below 5.1.5) (Slow or crashes)
• IE 1-8 (Cannot run)
• IE 9-10 (Slow, No native audio support (Requires flash bridge in the audio lib))
• IE 11 (No native audio support (Requires flash bridge in the audio lib))
• Firefox 1-3.6 (Slow)
• ALL VERSIONS OF MOBILE SAFARI AND OPERA (Stop pestering me, iOS just CAN'T run this well.)

CPU instruction set accuracy test results (Blargg's cpu_instrs.gb test ROM):

• GameBoy Online:

  

• Visual Boy Advance 1.7.2:

  

• KiGB:

  

• Gambatte: