How do they make Verilog code for unknown ICs?

Warren Toomey wkt at
Mon Jun 20 22:07:35 CDT 2016

All, I messed around with VHDL last year. I found this a great book
to learn VHDL best practices:
The book is free but you can also buy a printed copy at

I started with GHDL:
and then progressed to a Nexys4 FPGA board. Lots of fun.

Just a few more resources to add to the mix.

P.S The CPU I built with it:

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