IBM 360/30 in verilog (was: How do they make Verilog code for unknown ICs?)

Paul Birkel pbirkel at
Sun Jul 10 08:21:11 CDT 2016

-----Original Message-----
From: cctalk [mailto:cctalk-bounces at] 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?


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