[Stephn_R]

Damn...how does anyone begin to reinvent the wheel like that? Was there any documentation on how it was done?

[mburns]

There was a detailed writeup of a different Gameyboy Emulator in Javascript:

http://imrannazar.com/GameBoy-Emulation-in-JavaScript

[asddubs]

I've been hacking away on a game boy (not advance) emulator myself lately. It's actually all pretty well documented, even if you don't look at other emulator source codes, and the hardware isn't too complicated.