> Oh--where does someone get a device to dump ROM contents? Or is it a DIY
project? I suppose someone would also need tools to recompile the code
and burn it to a chip. Any resource links on that?
You need a chip reader and the associated software, that lets you dump the contents of a ROM and also burn binaries to a blank chip. There are loads of these types of readers around on eBay etc, the TL866 range is a cheap and commonly used, there are more expensive / featured ones out there of course.