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@riscv-non-isa

RISC-V Non-ISA Specifications

The Open-Standard Instruction Set Architecture

Welcome to the RISC-V Non-ISA Specifications 👋

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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 244

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

    A RISC-V ELF psABI Document

    Python 745 165

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

    Assembly 540 220

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

    Documentation for the RISC-V Supervisor Binary Interface

    Makefile 384 96

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

    C 315 92

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

    RISC-V Processor Trace Specification

    C 171 50

Repositories

Showing 10 of 35 repositories
  • riscv-security-model Public

    RISC-V Security Model

    riscv-non-isa/riscv-security-model’s past year of commit activity
    Makefile 30 CC-BY-4.0 15 4 1 Updated Feb 28, 2025
  • riscv-asm-manual Public

    RISC-V Assembly Programmer's Manual

    riscv-non-isa/riscv-asm-manual’s past year of commit activity
    Makefile 1,484 CC-BY-4.0 244 6 8 Updated Feb 28, 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 41 13 7 Updated Feb 28, 2025
  • riscv-c-api-doc Public

    Documentation of the RISC-V C API

    riscv-non-isa/riscv-c-api-doc’s past year of commit activity
    Makefile 75 CC-BY-4.0 43 17 8 Updated Feb 27, 2025
  • riscv-trace-spec Public

    RISC-V Processor Trace Specification

    riscv-non-isa/riscv-trace-spec’s past year of commit activity
    C 171 CC-BY-4.0 50 27 4 Updated Feb 27, 2025
  • riscv-brs Public

    The Boot and Runtime Services (BRS) specification provides the software requirements for system vendors and Operating System Vendors (OSVs) to interoperate with one another by providing expectations for the Operating System (OS) to utilize in acts of device discovery, system management, and other rich operations provided in this specification.

    riscv-non-isa/riscv-brs’s past year of commit activity
    TeX 45 CC-BY-4.0 16 20 1 Updated Feb 27, 2025
  • riscv-acpi-rimt Public

    RISC-V ACPI I/O Mapping Table Specification

    riscv-non-isa/riscv-acpi-rimt’s past year of commit activity
    Makefile 3 CC-BY-4.0 3 0 0 Updated Feb 26, 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 25 CC-BY-4.0 7 0 2 Updated Feb 26, 2025
  • 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 1 0 Updated Feb 26, 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 9 CC-BY-4.0 9 2 0 Updated Feb 26, 2025

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