Path: utzoo!attcan!uunet!husc6!bloom-beacon!tut.cis.ohio-state.edu!mailrus!ames!pasteur!ucbvax!MATHVAX.MSI.CORNELL.EDU!cww
From: cww@MATHVAX.MSI.CORNELL.EDU (Clarence Wilkerson)
Newsgroups: comp.sys.zenith.z100
Subject: Re: Using Compupro SPUZ z80 slave board with z100
Message-ID: <8805240228.AA28221@mathvax.MSI.CORNELL.EDU>
Date: 24 May 88 02:28:30 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 14

Does the z100 put out honest 24bit addresses for memory? The
rollover on the io addresses could be a problem since the SPUZ
board decodes and uses 16 bit io addresses. However, if the
low order byte does not conflict with z100 board use, I may be
able to jury rig the select line.
  I got the board from a friend for free, so this should be less
of a problem than putting in a z80 superchip, unless some one has that
well documented and with board plans ready to go. One
point was that the spuz can operate independently of the z100
once it is going, so one could have multiprocessing of sorts.
My understanding of the z100 is far from complete, but it seemed
that either the 8088 or the 8085 was running memory, but not both
together.
   Thanks for the help, Clarence