On Fri, 2 Mar 2001, Manuel Bilderbeek wrote: > It's indeed the best way. I made a mistake by the way: the last 16 bytes of > the four 16kB blocks have some small differences. So all blocks are different. > I don't understand what they're for though. If that's the case then your ROM is 16K; those 16 bytes are the FM hardware and aren't connected to the ROM so you will get some differences. In fact some of those addresses aren't connected at all, so you will get bus noise. > > ROM is 32K it is possible that the second 16K does not map directly above > > the first but somewhere else. Another thing to note is that the sound > > hardware overlays the ROM slightly; this is why you can't read all the ROM > > from a working cartridge. It doesn't really matter, of course, but for an > > accurrate record of the ROM I wanted to read it all so I desoldered it. > > Indeed. The difference between software and hardware. :) Desolder your ROM and read it out the "proper" way, if you like. It doesn't really matter. I'll try making an EPROM of whatever SFG-05 ROM is available at the time and see if it works in an SFG-01. Richard -- For info, see http://www.stack.nl/~wynke/MSX/listinfo.html
