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Installation
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------------
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2023-12-10 17:44:05 -06:00
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This document will guide you through the process of installing Yosys.
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CAD suite(s)
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~~~~~~~~~~~~
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Yosys is part of the `Tabby CAD Suite
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<https://www.yosyshq.com/tabby-cad-datasheet>`_ and the `OSS CAD Suite
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<https://github.com/YosysHQ/oss-cad-suite-build>`_! The easiest way to use yosys
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is to install the binary software suite, which contains all required
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dependencies and related tools.
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* `Contact YosysHQ <https://www.yosyshq.com/contact>`_ for a `Tabby CAD Suite
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<https://www.yosyshq.com/tabby-cad-datasheet>`_ Evaluation License and
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download link
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* OR go to https://github.com/YosysHQ/oss-cad-suite-build/releases to download
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the free OSS CAD Suite
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* Follow the `Install Instructions on GitHub
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<https://github.com/YosysHQ/oss-cad-suite-build#installation>`_
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Make sure to get a Tabby CAD Suite Evaluation License if you need features such
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as industry-grade SystemVerilog and VHDL parsers!
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For more information about the difference between Tabby CAD Suite and the OSS
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CAD Suite, please visit https://www.yosyshq.com/tabby-cad-datasheet
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Many Linux distributions also provide Yosys binaries, some more up to date than
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others. Check with your package manager!
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Targeted architectures
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^^^^^^^^^^^^^^^^^^^^^^
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The `OSS CAD Suite`_ releases `nightly builds`_ for the following architectures:
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.. only:: html
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2023-12-11 17:05:45 -06:00
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- linux-x64 |linux-x64|
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- Most personal Linux based computers
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- darwin-x64 |darwin-x64|
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- macOS 10.14 or later with Intel CPU
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- darwin-arm64 |darwin-arm64|
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- macOS 11.00 or later with M1 CPU
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- windows-x64 |windows-x64|
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- Targeted for Windows 10 and 11, but older 64-bit version of Windows 7,
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8, or 8.1 should work
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- linux-arm |linux-arm|
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- linux-arm64 |linux-arm64|
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- linux-riscv64 (untested) |linux-riscv64|
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.. _OSS CAD Suite: https://github.com/YosysHQ/oss-cad-suite-build
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.. _nightly builds: https://github.com/YosysHQ/oss-cad-suite-build/releases/latest
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.. |linux-x64| image:: https://github.com/YosysHQ/oss-cad-suite-build/actions/workflows/linux-x64.yml/badge.svg
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.. |darwin-x64| image:: https://github.com/YosysHQ/oss-cad-suite-build/actions/workflows/darwin-x64.yml/badge.svg
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.. |darwin-arm64| image:: https://github.com/YosysHQ/oss-cad-suite-build/actions/workflows/darwin-arm64.yml/badge.svg
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.. |windows-x64| image:: https://github.com/YosysHQ/oss-cad-suite-build/actions/workflows/windows-x64.yml/badge.svg
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.. |linux-arm| image:: https://github.com/YosysHQ/oss-cad-suite-build/actions/workflows/linux-arm.yml/badge.svg
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.. |linux-arm64| image:: https://github.com/YosysHQ/oss-cad-suite-build/actions/workflows/linux-arm64.yml/badge.svg
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.. |linux-riscv64| image:: https://github.com/YosysHQ/oss-cad-suite-build/actions/workflows/linux-riscv64.yml/badge.svg
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Building from source
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~~~~~~~~~~~~~~~~~~~~
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Refer to the `readme`_ for the most up-to-date install instructions.
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.. _readme: https://github.com/YosysHQ/yosys#building-from-source
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Supported platforms
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^^^^^^^^^^^^^^^^^^^
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The following platforms are supported and regularly tested:
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- Linux
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- macOS
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Other platforms which may work, but instructions may not be up to date and are
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not regularly tested:
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- FreeBSD
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- WSL
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- Windows with (e.g.) Cygwin
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Build prerequisites
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^^^^^^^^^^^^^^^^^^^
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A C++ compiler with C++11 support is required as well as some standard tools
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such as GNU Flex, GNU Bison, Make, libffi, and Python3.6 or later. Some
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additional tools: readline, Tcl and zlib; are optional but enabled by default
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(see ``ENABLE_*`` settings in Makefile). Xdot (graphviz) is optional unless
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using the :cmd:ref:`show` command to display schematics.
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..
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unclear if libffi is required now or still optional
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readme says optional, but I can't find a corresponding ENABLE_*
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Installing all prerequisites for Ubuntu 20.04:
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.. code:: console
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sudo sudo apt-get install build-essential clang bison flex \
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libreadline-dev gawk tcl-dev libffi-dev git make \
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graphviz xdot pkg-config python3 libboost-system-dev \
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libboost-python-dev libboost-filesystem-dev zlib1g-dev
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Installing all prerequisites for macOS 11 (with Homebrew):
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.. code:: console
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brew install bison flex gawk libffi git graphviz \
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pkg-config python3 tcl-tk xdot bash boost-python3
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Running the build system
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^^^^^^^^^^^^^^^^^^^^^^^^
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To configure the build system to use a specific compiler, use one of the
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following:
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.. code:: console
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make config-clang
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make config-gcc
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Then, simply run ``make`` in this directory.
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.. code:: console
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make
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sudo make install
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Note that this also downloads, builds, and installs ABC (using yosys-abc as the
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executable name).
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.. seealso::
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Refer to :doc:`/test_suites` for details on testing Yosys once compiled.
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Source tree and build system
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The Yosys source tree is organized into the following top-level
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directories:
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``backends/``
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This directory contains a subdirectory for each of the backend modules.
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``docs/``
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Contains the source for this documentation, including images and sample code.
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``examples/``
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Contains example code for using Yosys with some other tools including a demo
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of the Yosys Python api, and synthesizing for various toolchains such as
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Intel and Anlogic.
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``frontends/``
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This directory contains a subdirectory for each of the frontend modules.
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``guidelines/``
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Contains developer guidelines, including the code of conduct and coding style
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guide.
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``kernel/``
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This directory contains all the core functionality of Yosys. This includes
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the functions and definitions for working with the RTLIL data structures
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(``rtlil.{h|cc}``), the ``main()`` function (``driver.cc``), the internal
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framework for generating log messages (``log.{h|cc}``), the internal
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framework for registering and calling passes (``register.{h|cc}``), some core
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commands that are not really passes (``select.cc``, ``show.cc``, …) and a
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couple of other small utility libraries.
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``libs/``
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Libraries packaged with Yosys builds are contained in this folder. See
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:doc:`/appendix/auxlibs`.
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``misc/``
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Other miscellany which doesn't fit anywhere else.
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``passes/``
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This directory contains a subdirectory for each pass or group of passes. For
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example as of this writing the directory ``passes/hierarchy/`` contains the
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code for three passes: :cmd:ref:`hierarchy`, :cmd:ref:`submod`, and
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:cmd:ref:`uniquify`.
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``techlibs/``
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This directory contains simulation models and standard implementations for
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the cells from the internal cell library.
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``tests/``
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This directory contains the suite of unit tests and regression tests used by
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Yosys. See :doc:`/test_suites`.
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2023-08-02 17:23:39 -05:00
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The top-level Makefile includes ``frontends/*/Makefile.inc``,
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``passes/*/Makefile.inc`` and ``backends/*/Makefile.inc``. So when extending
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Yosys it is enough to create a new directory in ``frontends/``, ``passes/`` or
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``backends/`` with your sources and a ``Makefile.inc``. The Yosys kernel
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automatically detects all commands linked with Yosys. So it is not needed to add
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additional commands to a central list of commands.
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Good starting points for reading example source code to learn how to write
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passes are ``passes/opt/opt_dff.cc`` and ``passes/opt/opt_merge.cc``.
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See the top-level README file for a quick Getting Started guide and build
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instructions. The Yosys build is based solely on Makefiles.
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Users of the Qt Creator IDE can generate a QT Creator project file using make
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qtcreator. Users of the Eclipse IDE can use the "Makefile Project with Existing
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Code" project type in the Eclipse "New Project" dialog (only available after the
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CDT plugin has been installed) to create an Eclipse project in order to
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programming extensions to Yosys or just browse the Yosys code base.
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