Icarus Verilog is an implementation of the

Verilog Verilog, standardized as IEEE 1364, is a hardware description language (HDL) used to model electronic systems. It is most commonly used in the design and verification of digital circuits at the register-transfer level of abstraction. It is also ...

hardware description language compiler that generates

netlists In electronic design, a netlist is a description of the connectivity of an electronic circuit. In its simplest form, a netlist consists of a list of the electronic components in a circuit and a list of the nodes they are connected to. A network ...

in the desired format (

EDIF EDIF (Electronic Design Interchange Format) is a vendor-neutral format based on S-Expressions in which to store Electronic netlists and schematics. It was one of the first attempts to establish a neutral data exchange format for the electronic desi ...

). It supports the 1995, 2001 and 2005 versions of the standard, portions of

SystemVerilog SystemVerilog, standardized as IEEE 1800, is a hardware description and hardware verification language used to model, design, simulate, test and implement electronic systems. SystemVerilog is based on Verilog and some extensions, and since 200 ...

, and some extensions. Icarus Verilog is available for

Linux Linux ( or ) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, which ...

FreeBSD FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution (BSD), which was based on Research Unix. The first version of FreeBSD was released in 1993. In 2005, FreeBSD was the most popular ...

OpenSolaris OpenSolaris () is a discontinued open-source computer operating system based on Solaris and created by Sun Microsystems. It was also, perhaps confusingly, the name of a project initiated by Sun to build a developer and user community around th ...

AIX Aix or AIX may refer to: Computing * AIX, a line of IBM computer operating systems *An Alternate Index, for a Virtual Storage Access Method Key Sequenced Data Set * Athens Internet Exchange, a European Internet exchange point Places Belgi ...

Microsoft Windows Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for serv ...

, and . Released under the

GNU General Public License The GNU General Public License (GNU GPL or simply GPL) is a series of widely used free software licenses that guarantee end users the Four Freedoms (Free software), four freedoms to run, study, share, and modify the software. The license was th ...

, Icarus Verilog is

free software Free software or libre software is computer software distributed under terms that allow users to run the software for any purpose as well as to study, change, and distribute it and any adapted versions. Free software is a matter of liberty, no ...

. As of release 0.9, Icarus is composed of a Verilog compiler (including a Verilog preprocessor) with support for plug-in backends, and a virtual machine that simulates the design. Release v10.0, besides general improvements and bug fixes, added preliminary support for

VHDL The VHSIC Hardware Description Language (VHDL) is a hardware description language (HDL) that can model the behavior and structure of digital systems at multiple levels of abstraction, ranging from the system level down to that of logic gates ...

, but the VHDL support has been abandoned as of 2018.

History

Not even the author quite remembers when the project was first started, but CVS records go back to 1998. There have been releases 0.2 through the current stable release 10.0. Icarus Verilog development is done largely by the sole regular author, Stephen Williams. Some non-trivial portions have been contributed as accepted patches.

External links

Icarus Verilog official web site

GitHub page

Icarus Verilog documentation wiki

Icarus Verilog installer for Microsoft Windows

Online interface to Icarus Verilog

Open Source in Electronic Design Automation

Icarus Verilog: Open-Source Verilog More than a Year Later

EDA Playground - run Icarus Verilog simulations from the web browser

Historical CSV repository

VHDL support abandoned
Free electronic design automation software Electronic design automation software for Linux {{CAD-software-stub

History

See also

External links