On Jul 10, 2016, at 10:23 PM, Lawrence Wilkinson
<ljw-cctech at ljw.me.uk> wrote:
That'll be me, I guess, It's in VHDL. URL in sig.
On 10/07/16 15:21, Paul Birkel wrote:
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at
classiccmp.org] On Behalf Of Guy Sotomayor Jr
Sent: Monday, June 20, 2016 4:04 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: How do they make Verilog code for unknown ICs?
What you can do (and I?ve seen it done) is define verilog modules that provide the
functions of the IC and use that in their designs. I?ve seen at least two interesting
classic computer recreations using this approach (re-implemenation of the CADR lisp
machine in verilog and an IBM 360/30 in verilog).
ROMs are easy (just instantiate a lookup table). PLCs are just combinatorial equations
which are relatively easy with the verilog ?assign? statement.
TTFN - Guy
====****====
Do you have a pointer to that "IBM 360/30 in Verilog", Guy?
-----
paul
--
Lawrence Wilkinson lawrence at ljw.me.uk
The IBM 360/30 page
http://www.ljw.me.uk/ibm360