jsSMS Git (2012/07/18) is released. jsSMS is a Sega Master System & GameGear emulator in JavaScript. This is a JavaScript port of JavaGear by Chris White.

jsSMS Git Changelog:
* Probably a better handling of signs
* Define array length whenever possible
* Use ArrayBuffer and DataView on supported browsers

Try Online: jsSMS Git (2012/07/18)
Source: Here