Speaking of multiple processors... - test-drb@ccmp.vtda.org

15 Nov 2007

-----------Original Message:
Date: Thu, 15 Nov 2007 08:32:02 +0000
From: Gordon JC Pearce <gordonjcp at gjcp.net>
Subject: Re: Speaking of multiple processors...

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?).  <snip>

It does.  I believe one handles disk accesses, while the other does the
rest.  Once I get mine working, I'll tell you more.<snip>

Gordon

----------Reply:
Cromemco also had Z80s on their I/O processor boards, and when the later 680x0
CPU boards dropped the Z80 you could still run your Z80 programs on the I/O card.

mike