README.md

Verilog-HDL/SystemVerilog/Bluespec SystemVerilog support for VS Code

Verilog-HDL, SystemVerilog and Bluespec SystemVerilog support for VS Code with Syntax Highlighting, Snippets, Linting and much more!

Installation

Install it from VS Code Marketplace or Open VSX Registry

Features

Done

• Syntax Highlighting
  • Verilog-HDL
  • SystemVerilog
  • Bluespec SystemVerilog
  • Vivado UCF constraints
  • Synopsys Design Constraints
• Simple Snippets
• Linting support from:
  • Icarus Verilog - iverilog
  • Vivado Logical Simulation - xvlog
  • Modelsim - modelsim
  • Verilator - verilator
• Linting support
  • Bluespec SystemVerilog
• Ctags Integration
  • Autocomplete
  • Document Symbols Outline
  • Hover over variable declaration
  • Go to Definition & Peek Definition
  • Module Instantiation

In Progress / Future

• Language Server support
  • Currently only supports svls
• Improvements in the newly added features

Take a look at our list of planned features

Ctags Integration

This extension uses the tags created using Ctags to provide many of its features. It is recommended to use Universal Ctags as it supports SystemVerilog also, compared to Exuberant Ctags and other older versions. The tags are stored in memory and not as separate files.

Installation of Universal Ctags

• Windows - Daily builds are available at ctags-win32
• Linux - Installation instructions are here
• macOS - Install through Homebrew from here

Add the installation path of Ctags binary in your PATH environment variable or mention it in verilog.ctags.path setting.

Configuration Settings

Use the following settings to configure the extension to your needs

• verilog.linting.linter (Default: none )

  Choose the linter for you. Possible values are

  • iverilog
  • xvlog
  • modelsim
  • verilator
  • none

• verilog.linting.iverilog.arguments (Default: nothing)

  Add custom arguments to Icarus Verilog for linting, like -Wall . The argument -t null will be added by the linter automatically.

• verilog.linting.iverilog.runAtFileLocation (Default: false )

  By default, the linter will be run at the workspace directory. Enable this option to run at the file location. If enabled, `include directives should contain file paths relative to the current file.

• verilog.linting.modelsim.arguments (Default: nothing)

  Add custom arguments to Modelsim for linting.

• verilog.linting.modelsim.work (Default: nothing)

  Add custom work library to Modelsim for linting.

• verilog.linting.verilator.arguments (Default: nothing)

  Add custom arguments to Verilator for linting, like -Wall . The argument --lint-only -I<document folder> will be added by the linter automatically.

• verilog.linting.verilator.runAtFileLocation (Default: false )

  By default, the linter will be run at the workspace directory. Enable this option to run at the file location. If enabled, `include directives should contain file paths relative to the current file.

• verilog.linting.verilator.useWSL (Default: false )

  Run verilator under WSL (use apg-get install verilator to install). Paths generated automatically by the extension (the path to the Verilog file as well as the auto-generated document folder for -I ) are translated to WSL paths using the wslpath program. Any other paths you specify in verilog.linting.verilator.arguments must be manually converted.

• verilog.ctags.path (Default: ctags )

  Path to your installation of Ctags if it isn't already present in your PATH environment variable.

• verilog.languageServer (Default: none )

  Select the Language Server. Currently supports svls . Make sure svls is in your$PATH environmental variable. Experimental support.

• verilog.logging.enabled (Default: false )

  Enable logging for this extension. Open the Output pane in VS Code and choose Verilog in the drop-down menu to view the log.

Commands

• Rerun lint tool

  Choose a lint tool from the list and run it manually. Useful if the code was changed by an external script or version control system.

• Instantiate Module

  Choose a module present in your workspace to instantiate it in the current file.

Usage Instructions

• All linters expect the executable binary ( iverilog , verilator ...) to be present in the PATH environment variable, unless otherwise specified.
• While using `include directives, the path to the files should be relative to the workspace directory, unless runAtFileLocation is enabled (not supported by all linters)

Compatability

Feature	Windows	Linux	MacOS
Basics (like Syntax highlighting)	Windows 10	Ubuntu 20.04	macOS 10.15
Icarus Verilog	Windows 10	Ubuntu 18.04	Yes
Vivado Logical Simulation	Windows 10	Not Tested	Not Tested
Modelsim	Windows 10	Ubuntu 18.04	Not Tested
Verilator	Windows 10	Debian 9	Not Tested
Ctags Integration	Windows 10	Ubuntu 18.10	Not Tested
Language Server	Windows 10	Ubuntu 20.04	macOS 10.15

If you have tested the linters in new platforms or have issues with them, feel free to file an issue.

Guidelines for Contributing

Thanks

• To all our Contributors
• Textmate Package for Verilog
• SublimeLinter-contrib-iverilog
• SublimeLinter-contrib-vlog
• Sublime Text Bluespec SystemVerilog
• svls
• Sublime EDA