15 Nov
2007
15 Nov
'07
8:32 a.m.
On Thu, 2007-11-15 at 00:32 -0500, Roy J. Tellason wrote:
Didn't that "Superbrain" computer use a
couple of Z80 chips in there? IIRC,
one was the "main" CPU and the other one handled I/O tasks of some sort
(disk?). I had a guy come into my shop one time wanting a couple of those
fixed, but I could find *no* data on them at the time and therefore couldn't
do too much for him...
It does. I believe one handles disk accesses, while the other does the
rest. Once I get mine working, I'll tell you more.
Are there docs out there for this beast? I'm just
wondering how they divided
things up between the two CPU chips, and how they interfaced things...
A quick google turns up scans of the service manual and circuit
diagrams.
Gordon