jsSMS is a Sega Master System & GameGear emulator in JavaScript.

jsSMS (2013/04/01) Changelog:

- Widespread use toHex ().
- First iteration of a debugger.
- Rewrote counter frame per second.
- Rename the script "minified" debugger jssms.debug.js.



Try Online: jsSMS (2013/04/01)
Source: Here