Of course, that's not the hardest way. You could also do this:
http://www.pmonta.com/calculators/hp-35/
I have a few chips that I'll need to do that to, where the ROM is
embedded and can't be read out electrically. Unfortunately the chips
are in a much finer geometry than the HP-35 chips, so i
Someone was kind enough to mail me the masked ROM out of his HP 9895
floppy drive. I've read it and mailed it back. It's an MK36000 series
24-pin 8KB masked ROM, with the same pinout as the Motorola MC68764
EPROM, so reading it with an EPROM programmer set for the Motorola
part should work fine. In
