Allison: 2910c version of z80 and FPGAs - a little O/T - test-drb@ccmp.vtda.org

6 May 2001

From: Richard Erlacher &lt;edick(a)idcomm.com&gt;

...
 rather, the old solid 8's or 11's.  Emanuel
once told me there are a couple of
...
 makers of PDP-11 look-alikes that work well enough to
be of interest. Like the

Mentec, they have the license and make cpu/systems to go with the OS.
Some are quite fast compared the the 1978 gold standard (PDP-11/70).

...
 From the other standpoint I can easily fine PDP-11/23s
and even 11/73 or 11/83 series machines making the effort somewhat moot.

People have done PDP-8s for "lab projects" for years and at least one was
packed in to two arrays (cpu, memory and IO!) on a board small enough
to barely hide a 3.5" drive.  The problem is PDP-8 is not a rom friendly
design from the start.  PDP-11 is better there but much of the stuff
out there wants for RAM, excluding the unique code for the Falcon
and later class SBCs.

Allison