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RISC-V

The Open-Standard Instruction Set Architecture

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  1. riscv-isa-manual riscv-isa-manual Public

    RISC-V Instruction Set Manual

    TeX 4.2k 721

  2. docs-dev-guide docs-dev-guide Public

    Documentation developer guide

    TeX 107 36

  3. docs-spec-template docs-spec-template Public template

    Makefile 26 25

  4. docs-resources docs-resources Public

    38 18

Repositories

Showing 10 of 62 repositories
  • riscv-zalasr Public

    The ISA specification for the Zalasr extension.

    riscv/riscv-zalasr’s past year of commit activity
    Makefile 7 CC-BY-4.0 2 2 1 Updated Jul 12, 2025
  • riscv-smmtt Public

    This specification will define the RISC-V privilege ISA extensions required to support Supervisor Domain isolation for multi-tenant security use cases e.g. confidential-computing, trusted platform services, fault isolation and so on.

    riscv/riscv-smmtt’s past year of commit activity
    Makefile 54 CC-BY-4.0 19 0 0 Updated Jul 12, 2025
  • riscv-performance-event-sampling Public

    Define 2 new extensions to, along with Zihpm and Sscofpmf, enable event and instruction sampling with precise attribution.

    riscv/riscv-performance-event-sampling’s past year of commit activity
    Makefile 1 CC-BY-4.0 1 0 2 Updated Jul 11, 2025
  • riscv-cfi Public

    This specification is integrated into the Priv. and Unpriv. specifications. This repo is no longer maintained. Please refer to the Priv. and Unpriv. specifications at https://github.com/riscv/riscv-isa-manual

    riscv/riscv-cfi’s past year of commit activity
    Makefile 88 CC-BY-4.0 22 0 0 Updated Jul 12, 2025
  • riscv-cheri Public

    This repository contains the CHERI extension specification, adding hardware capabilities to RISC-V ISA to enable fine-grained memory protection and scalable compartmentalization.

    riscv/riscv-cheri’s past year of commit activity
    TeX 72 CC-BY-4.0 36 52 (2 issues need help) 4 Updated Jul 11, 2025
  • sail-riscv Public

    Sail RISC-V model

    riscv/sail-riscv’s past year of commit activity
    Sail 574 218 122 (1 issue needs help) 77 Updated Jul 12, 2025
  • sig-functional-safety-whitepaper Public

    GitHub repository for the Functional Safety SIG Whitepaper Development

    riscv/sig-functional-safety-whitepaper’s past year of commit activity
    TeX 4 CC-BY-4.0 3 0 0 Updated Jul 11, 2025
  • riscv-isa-manual Public

    RISC-V Instruction Set Manual

    riscv/riscv-isa-manual’s past year of commit activity
    TeX 4,161 CC-BY-4.0 721 227 (2 issues need help) 20 Updated Jul 11, 2025
  • riscv-memory-tagging Public

    Memory Tagging ISA extension that can be used by software to enforce memory tag checks on memory loads and stores

    riscv/riscv-memory-tagging’s past year of commit activity
    Makefile 17 CC-BY-4.0 8 1 1 Updated Jul 9, 2025
  • riscv-svvptc Public

    Obviating Memory-Management Instructions after Marking PTEs Valid (Svvptc)

    riscv/riscv-svvptc’s past year of commit activity
    Makefile 3 CC-BY-4.0 4 0 0 Updated Jul 9, 2025

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