Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
D
@martinrdgz i don't believe there's any rules/consistency about how game data is split across chips. also see http://wiki.mamedev.org/index.php/Dumping_roms