3 Apr
2003
3 Apr
'03
11:12 a.m.
I have, of course, dumps of the 2 proms (one is 32*8,
the other 256*4) in
my Z90. They're a lot less 'unobtainium' than many chips I deal with!.
That's good news, because I have a few CPU boards I'd like to upgrade... so,
modern equivalent blanks are available? I haven't ripped labels off of any
of them to see what they really are.
Tony, out of
curiousity, what are your versions of the various PROMs and
EPROMs at U516, 517, 518, and 520 on your Z90?
That would involve getting to the Z90, which is not going to be
trivial....