On Tue, 7 Aug 2001, Gene Buckle wrote:
> > > how about SILLIEST?? IBM professional debug facility. An entire half
> > > length card for the sole purpose of bringing two pins of the ISA bus to a
> > > pushbutton. It made the front cover of PC Tech Journal.
> That sounds a LOT like the Periscope debugger board. Is it?
NO!
Periscope (by Brett Salter) had several different versions, ranging from
little clips to go into an ISA slot alongside a board, to a full lenghth
board with "write-protectable RAM" that the debugger could be loaded into.
The IBM version COULD be used with the Persicope software, particularly if
you were SO unable to solder as to not be able to put a pair of extra
wires ont solder pads (such as on the floppy card).
What made the IBM card "SPECIAL" was that it was an entire half length
card with a single trace on each side running at an angle to the
pushbutton. It was the closest to a BLANK card as was ever issued. REAL
BLANK, without even any holes in it, NOT a prototype card.
--
Grumpy Ol' Fred cisin_at_xenosoft.com
Received on Tue Aug 07 2001 - 17:45:19 BST