Changes
MAME
,/* JSMESS, a JavaScript port */
Note that the ROM file cpc6128.zip also needs to contain the AMSDOS ROM from cpc464.zip because unlike regular MESS, JSMESS only loads a single ROM ZIP file per machine.
As of October 2013, sound only works in Firefox and not in Chrome/Chromium. Emulation speed in Firefox is better than in Chrome, presumably because Firefox has better support for Emscripten's asm.js-based JS code. Also, keymapping has not been done for JSMESS systems, although in principle you should be able to create keymaps in MESS and use them with JSMESS. The joystick is mapped to Alt and the arrow keys by default.
This [http://mdoege.github.io/jsmess/ JSMESS CPC demo page] (with the SubHunter disc in drive A) also has a ZIP file download of the build.
