My NES emulator is a work in progress. The source is available on github, as is a (bring-your-own-ROM) hosted version. It currently (November 2014) runs games with cartridge mappers 0, 1, 2, 3 and (partially) 4. This includes Super Mario Brothers 1-3, Zelda 1 and 2, etc.
<canvas> for graphics and the web audio API for playing sound. The emulator strives for accuracy over performance. Perhaps more fundamentally, my goal is to make the codebase didactic. I intend to use it as the basis for a series of articles on how to design and write an emulator.
Last updated 1 November 2014