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    152 repositories

    • lowrisc-nix

      Public
      lowRISC Nix Packages and Environments
      Nix
      •
      MIT License
      •10•7•1•3•Updated Jan 4, 2026Jan 4, 2026

    • opentitan

      Public
      OpenTitan: Open source silicon root of trust
      SystemVerilog
      •
      Apache License 2.0
      •930•3.1k•1.5k•337•Updated Jan 1, 2026Jan 1, 2026

    • benevisrdl

      Public
      This repository houses PeakRDL plugins, named after Ben Nevis, the UK's tallest peak.
      SystemVerilog
      •
      Apache License 2.0
      •1•0•0•1•Updated Dec 26, 2025Dec 26, 2025

    • ibex

      Public
      Ibex is a small 32 bit RISC-V CPU core, previously known as zero-riscy.
      hardwarerisc-vrv32cpucore
      SystemVerilog
      •
      Apache License 2.0
      •676•1.7k•212•37•Updated Dec 23, 2025Dec 23, 2025

    • opentitan-provisioning

      Public
      Reference OpenTitan Provisioning Infrastructure
      Go
      •
      Apache License 2.0
      •10•11•13•3•Updated Dec 22, 2025Dec 22, 2025

    • dvsim

      Public
      DVSim is a build and run system written in Python that runs a variety of EDA tool flows
      Python
      •
      Apache License 2.0
      •4•3•24•1•Updated Dec 19, 2025Dec 19, 2025

    • sonata-system

      Public
      A full micro-controller system utilizing the CHERIoT Ibex core, part of the Sunburst project funded by UKRI
      C++
      •
      Apache License 2.0
      •29•46•14•9•Updated Dec 11, 2025Dec 11, 2025

    • qemu

      Public
      Fork of QEMU for development of lowRISC platforms (including OpenTitan)
      C
      •
      Other
      •6.4k•6•10•2•Updated Dec 9, 2025Dec 9, 2025

    • sail

      Public
      Sail architecture definition language
      Isabelle
      •
      Other
      •145•0•0•0•Updated Dec 3, 2025Dec 3, 2025

    • lowrisc-toolchains

      Public
      UNSUPPORTED INTERNAL toolchain builds
      Shell
      •21•47•3•0•Updated Dec 2, 2025Dec 2, 2025

    • binutils

      Public
      (Unsupported) lowRISC fork of Binutils
      C
      •
      GNU General Public License v2.0
      •0•0•0•0•Updated Nov 26, 2025Nov 26, 2025

    • container-hotplug

      Public
      Hot-plug devices into a Docker container as they are plugged.
      Rust
      •5•14•2•0•Updated Nov 18, 2025Nov 18, 2025

    • sonata-software

      Public
      Software, build flows and examples for the Sonata System
      C++
      •
      Apache License 2.0
      •14•13•3•2•Updated Nov 11, 2025Nov 11, 2025

    • style-guides

      Public
      lowRISC Style Guides
      Creative Commons Attribution 4.0 International
      •127•473•19•1•Updated Nov 6, 2025Nov 6, 2025

    • ibex-demo-system

      Public
      A demo system for Ibex including debug support and some peripherals
      C
      •
      Apache License 2.0
      •68•85•14•7•Updated Nov 4, 2025Nov 4, 2025

    • ot-sca

      Public
      Side-channel analysis setup for OpenTitan
      Jupyter Notebook
      •
      Apache License 2.0
      •32•37•27•5•Updated Nov 3, 2025Nov 3, 2025

    • serde-annotate

      Public
      Serde Serializer with formatting controls
      Rust
      •
      Apache License 2.0
      •5•1•0•0•Updated Oct 16, 2025Oct 16, 2025

    • llvm-project

      Public
      The LLVM Project is a collection of modular and reusable compiler and toolchain technologies. Note: the repository does not accept github pull requests at this moment. Please submit your patches at http://reviews.llvm.org.
      C++
      •16k•2•0•0•Updated Sep 11, 2025Sep 11, 2025

    • QuickCheckVEngine

      Public
      A RISC-V TestRIG Verification Engine based on QuickCheck
      Haskell
      •
      BSD 2-Clause "Simplified" License
      •11•0•0•0•Updated Sep 4, 2025Sep 4, 2025

    • cheriot-ibex

      Public
      cheriot-ibex is a RTL implementation of CHERIoT ISA based on LowRISC's Ibex core.
      SystemVerilog
      •
      Apache License 2.0
      •24•1•0•0•Updated Aug 21, 2025Aug 21, 2025

    • TestRIG

      Public
      Testing processors with Random Instruction Generation
      Python
      •
      Other
      •17•1•0•0•Updated Aug 13, 2025Aug 13, 2025

    • verilator

      Public
      Verilator open-source SystemVerilog simulator and lint system
      C++
      •
      GNU Lesser General Public License v3.0
      •729•0•0•0•Updated Jul 22, 2025Jul 22, 2025

    • parallel-cp

      Public
      A tiny parallel file copy utility
      Rust
      •0•1•0•0•Updated Jul 4, 2025Jul 4, 2025

    • cheriot-sail

      Public
      Sail code model of the CHERIoT ISA
      TeX
      •
      Other
      •17•1•0•0•Updated Jul 1, 2025Jul 1, 2025

    • sail-riscv

      Public
      Sail RISC-V model
      Coq
      •
      Other
      •242•0•0•0•Updated Jul 1, 2025Jul 1, 2025

    • riscv-isa-sim

      Public
      RISC-V Functional ISA Simulator
      C
      •
      Other
      •1k•18•0•2•Updated Jun 20, 2025Jun 20, 2025

    • sunburst-chip

      Public
      An open silicon CHERIoT Ibex microcontroller chip
      C
      •
      Apache License 2.0
      •4•17•6•2•Updated May 23, 2025May 23, 2025

    • rules_python

      Public
      Bazel Python Rules
      Starlark
      •
      Apache License 2.0
      •646•0•0•0•Updated Apr 30, 2025Apr 30, 2025

    • muntjac

      Public
      64-bit multicore Linux-capable RISC-V processor
      SystemVerilog
      •
      Apache License 2.0
      •13•101•1•0•Updated Apr 28, 2025Apr 28, 2025

    • part-number-registry

      Public
      Registry of various part number and ID namespaces that lowRISC controls
      Apache License 2.0
      •0•1•0•0•Updated Mar 31, 2025Mar 31, 2025