Javascript Gameboy Color Emulator
JavaScript CSS HTML
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asterick Merge pull request #4 from forestbelton/master
Refer to proper flags in scope
Latest commit c953808 Jul 31, 2016

JSBoy - The gameboy color emulator for javascript Bryon Vandiver (


This was my first attempt at writing an HTML5 (canvas) javascript application. Currently, it is self contained and only requires that it be initialized with a 2d context, preferably 160x144px in size or greater. This is done by passing an array and a name which is used for web storage (battery backup)

Strong typed rom images are allowed, but you will see no performance increase due to the use of delegates for virtual memory accesses

Technical Features

This emulator features a number of performance optimizations in order to keep performance at a maximum; this includes interrupt prediction and the use of memory i/o delegates for fast memory accesses.


Predicitions are off Noise playback frequency is wrong (a guess at best)