Marko writes: >The firmware dump at http://www.funet.fi/pub/cbm/firmware/printers/1230/ >is 64 kilobytes long. The data between $a430 and $ffff is $ff. It's not 6502, Z80, 6805, 8051, or 8048. I'm running out of ideas... if someone could pop the cover on one of these, and list the numbers on all the bigs chips they can find, that would be useful. It's not impossible that it is one of these processors, but the address and/or data lines have been shuffled to make the PCB layout easier. That's rare in a commercial product, but I've seen it done (and done it myself :-) (It's also not impossible that it is one of these processors, and I've made a mistake in rejecting it. But the data doesn't look like what I'd expect from any of them) John Message was sent through the cbm-hackers mailing list
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