Just an update to note that I was successful in reading the ROM out of
the MOS 6500/1 using the test mode. I used an ATMEGA32 to drive the
Well done!
I dumped both the CBM 1520 Plotter ROM versions (-01
and -03).
The 1520 is the little 4-pen Alps mechanism, isn't it?
Are these ROM images avaialbe for download anywhere?
-tony