Skip to content
@riscv-non-isa

RISC-V Non-ISA Specifications

The Open-Standard Instruction Set Architecture
README.md

Welcome to the RISC-V Non-ISA Specifications 👋

RISC-V Logo

Non-ISA specifications do not add new instructions, create or change opcodes, or in any way modify the RISC-V ISA. They do help us to develop an ecosystem around the ISA Specifications.

Things you'll find here include:

  • ABI Documentation
  • Architecture Tests
  • Specifications like Debug, Processor Trace, and Software Interrupts

If you don't find what you're looking for here, try one of our other GitHub organizations:

Popular repositories Loading

  1. riscv-asm-manual riscv-asm-manual Public

    RISC-V Assembly Programmer's Manual

    Makefile 1.5k 247

  2. riscv-elf-psabi-doc riscv-elf-psabi-doc Public

    A RISC-V ELF psABI Document

    Python 771 166

  3. riscv-arch-test riscv-arch-test Public

    Assembly 554 225

  4. riscv-sbi-doc riscv-sbi-doc Public

    Documentation for the RISC-V Supervisor Binary Interface

    Makefile 395 95

  5. rvv-intrinsic-doc rvv-intrinsic-doc Public

    C 322 96

  6. riscv-trace-spec riscv-trace-spec Public

    RISC-V Processor Trace Specification

    C 181 53

Repositories

Showing 10 of 34 repositories
  • riscv-external-debug-security Public

    The RISC-V External Debug Security Specification

    riscv-non-isa/riscv-external-debug-security’s past year of commit activity
    Makefile 19 CC-BY-4.0 4 0 1 Updated Apr 22, 2025
  • iopmp-spec Public

    This repository contains the specification source for the RISC-V IOPMP Specification. This document proposes a Physical Memory Protection Unit of Input/Output devices, IOPMP for short, to regulate the accesses issued from the bus masters.

    riscv-non-isa/iopmp-spec’s past year of commit activity
    Makefile 27 CC-BY-4.0 8 7 1 Updated Apr 21, 2025
  • riscv-toolchain-conventions Public

    Documenting the expected behaviour and supported command-line switches for GNU and LLVM based RISC-V toolchains

    riscv-non-isa/riscv-toolchain-conventions’s past year of commit activity
    Makefile 149 CC-BY-4.0 42 13 6 Updated Apr 18, 2025
  • riscv-sbi-doc Public

    Documentation for the RISC-V Supervisor Binary Interface

    riscv-non-isa/riscv-sbi-doc’s past year of commit activity
    Makefile 395 CC-BY-4.0 95 13 5 Updated Apr 17, 2025
  • riscv-asm-manual Public

    RISC-V Assembly Programmer's Manual

    riscv-non-isa/riscv-asm-manual’s past year of commit activity
    Makefile 1,493 CC-BY-4.0 247 6 9 Updated Apr 16, 2025
  • riscv-rpmi Public

    RISC-V Platform Management Interface Specification. OS-agnostic messaging interface for system management and control

    riscv-non-isa/riscv-rpmi’s past year of commit activity
    Makefile 10 CC-BY-4.0 9 1 0 Updated Apr 16, 2025
  • riscv-iommu Public

    RISC-V IOMMU Specification

    riscv-non-isa/riscv-iommu’s past year of commit activity
    C 112 CC-BY-4.0 20 0 5 Updated Apr 10, 2025
  • riscv-server-platform Public

    The RISC-V Server Platform specification defines a standardized set of hardware and sofware capabilities, that portable system software, such as operating systems and hypervisors, can rely on being present in a RISC-V server platform.

    riscv-non-isa/riscv-server-platform’s past year of commit activity
    Makefile 12 CC-BY-4.0 6 4 0 Updated Apr 8, 2025
  • rvv-intrinsic-doc Public
    riscv-non-isa/rvv-intrinsic-doc’s past year of commit activity
    C 322 BSD-3-Clause 96 21 9 Updated Apr 7, 2025
  • riscv-trace-spec Public

    RISC-V Processor Trace Specification

    riscv-non-isa/riscv-trace-spec’s past year of commit activity
    C 181 CC-BY-4.0 53 31 5 Updated Apr 4, 2025
View all repositories

People

This organization has no public members. You must be a member to see who’s a part of this organization.