18 Aug
2009
18 Aug
'09
1:41 p.m.
On Tue, Aug 18, 2009 at 4:33 PM, Joe Giliberti<starbase89 at gmail.com> wrote:
I have a good DMM available, as well as a scope.
Good start.
I just noticed that there are two chips missing, which
appear to be ROMs.
There are sockets, but no chips. Their location would be toward the back
part of the board, to the right. They are the last two in a column (in
relation to the back) of similar-sized chips, most of which are direct
soldered to the board. I can take a photo if one is needed
A stock 8032 has "expansion ROM" sockets - it was common for PET
owners to enhance their PETs with after-market firmware. I myself had
the PAICS BASIC Toolkit, the Rabbit tape speeder, a very nice enhanced
Machine Language Monitor (MICRO-MON?) and I'm blanking on what was in
my third ROM socket (BASIC 2.0 had 3 available sockets).
It's likely your PET just has no add-on firmware, but I suppose it's
possible that it _has_ add-on firmware but is missing two other ROMs,
just not as likely.
-ethan