yosys-examples user manual

Title	yosys-examples (Verilog projects for simulation and synthesis)
Author	Nikolaos Kavvadias countbits example based on work by Guy Eschemann
Contact	nikolaos.kavvadias@gmail.com
Website	http://www.nkavvadias.com
Release Date	13 April 2020
Version	0.0.2
Rev. history
v0.0.2	2020-04-13 Update for yosys-0.7 and iverilog-0.10. Avoid duplication of the cell library.
v0.0.1	2016-02-28 First version.

1. Introduction

This is a collection of Verilog (mostly) projects. Icarus Verilog (http://iverilog.icarus.com) is used for simulation and YOSYS (0.10 and 0.7 tested, respectively) from http://clifford.at/yosys/ for logic synthesis.

2. Setup

First edit the setup.sh script to set the Icarus Verilog path (IVERILOG_PATH) and the path to the YOSYS binary (YOSYS_PATH) to the correct location for your setup. The script is located in the top-level directory.

Then source the script:

$ source setup.sh

3. Run

To run the simulation and the logic synthesis process for the supplied benchmarks, use the run.sh script from the top-level directory:

$ ./run.sh