Icarus Verilog is a Verilog simulation and synthesis tool. It operates as a compiler , compiling source code written in Verilog (IEEE) into some target format. Abstract. This document briefly introduces how to use Icarus Verilog to simulate your design. You can get this tool from the CD-ROM of your textbook or course. DESCRIPTION. iverilog is a compiler that translates Verilog source code into executable programs for simulation, or other netlist formats for further processing.

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This is a fairly large and complex standard, so it will take some time to fill all the dark alleys of the standard, but that’s the goal.

Icarus Verilog is a work in progress, and since icarhs language standard is not standing still either, it probably always will be. That is as it should be. However, I icarux make stable releases from time to time, and will endeavor to not retract any features that appear in these stable releases. The quick links above will show the current stable release. The main porting target is Linux, although it works well on many similar operating systems. Various people have contributed precompiled binaries of stable releases for a variety of targets.

These releases are ported by volunteers, so what binaries are available depends on who takes the time to do the packaging. Icarus Verilog has been ported to That Other Operating System, as a command line tool, and there are installers for users without compilers.


You can compile it entirely with free tools, too, although there mahual precompiled binaries of stable releases.

The files are gzip compressed tar files that contain the source and makefiles. These snapshots follow development progress, and, although the latest features are included in this source, compatibility from snapshot to snapshot is not icarrus.

iverilog • help

And finally, the current “git” repository is available for read-only access via anonymous gerilog cloning. This allows for those who which to track my progress and contribute with patches timely access to the most bleeding edge copy of the source.

Access the git repository of Icarus Veripog with the commands:. From here, you can use normal git commmands to update your source to the very latest copy of the source.

User Guide | Icarus Verilog | FANDOM powered by Wikia

There is also iczrus cast of characters who have contributed patches, tests, and various bits to the project. See the git logs to get an idea of the breadth of the contributor base.

I’ll be adding a credits page someday, although the source distributions do in general name names. The mailing lists for Icarus Verilog are hosted by sourceforge. See the gEDA home page for information about mmanual project, and information about how to join the mailing list.

While Icarus Verilog is not literally part of the gEDA project, we cooperate and try to support each other.

Icarus Verilog users are often gEDA users as well. Welcome to the home page for Icarus Verilog.

This is the source for your favorite free implementation of Verilog! What Is Icarus Verilog? Icarus Verilog is a Verilog simulation and synthesis tool. It operates as a compiler, compiling source code written in Verilog IEEE into some target format.


For batch simulation, the compiler can generate an intermediate form called vvp assembly. For synthesis, the compiler generates netlists in the desired format.

Where is Icarus Verilog?

User Guide

This is a quick summary of where to get Icarus Verilog. Home Welcome to the home page for Icarus Verilog. Updates to the stable release may be made from time to time to fix problems, but there should be no compatibility issues within this version series. This will continue to be maintained until rendered obsolete by a new stable release.

iverilog • help

Access the git repository of Icarus Verilog with the commands: The older CVS repository is obsolete. There is also a test suite available.

The test suite is also accessible as the ivtest github. Access the git repository of the test suite with the command: Only the git source. Who is Icarus Verilog? In fact, I’m still working on it, and will continue to work on it for the foreseeable future. I’m a software engineer specializing in device drivers and embedded systems, although I have some limited hardware design experience.

Even so, I am a software engineer writing software for hardware designers, so expect the occasional communications glitch: