https://github.com/riscv/riscv-isa-manual
RISC-V Instruction Set Manual
https://github.com/riscv/riscv-isa-manual
Last synced: 5 months ago
JSON representation
RISC-V Instruction Set Manual
- Host: GitHub
- URL: https://github.com/riscv/riscv-isa-manual
- Owner: riscv
- License: cc-by-4.0
- Created: 2017-02-02T03:24:54.000Z (over 8 years ago)
- Default Branch: main
- Last Pushed: 2025-05-11T05:14:53.000Z (5 months ago)
- Last Synced: 2025-05-11T05:23:52.821Z (5 months ago)
- Language: TeX
- Homepage: https://riscv.org/
- Size: 34.5 MB
- Stars: 4,054
- Watchers: 211
- Forks: 703
- Open Issues: 243
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- ASIC-Design-Roadmap - RISC-V Instruction Set Manual - This repository contains the LaTeX source for the draft RISC-V Instruction Set Manual. (Projects and IPs / Information Technology)
- awesome-digital-ic - RISC-V Instruction Set Manual - This repository contains the LaTeX source for the draft RISC-V Instruction Set Manual. (Projects and IPs / Information Technology)
README
# RISC-V Instruction Set Manual
[](https://github.com/riscv/riscv-isa-manual/actions/workflows/isa-build.yml)
This repository contains the source files for the RISC-V Instruction Set Manual, which consists of the Privileged RISC-V Instruction Set Manual (LaTeX) and the Unprivileged RISC-V Instruction Set Manual (AsciiDoc). The preface of each document indicates the version of each standard that has been formally ratified by RISC-V International.
This work is licensed under a [Creative Commons Attribution 4.0 International License](https://creativecommons.org/licenses/by/4.0/). See the [LICENSE](LICENSE) file for details.
The RISC-V Instruction Set Manual is organized into the following volumes:
- Volume I: User-Level ISA
- Volume II: Privileged Architecture
## Official and Draft Versions
- **Official versions** of the specifications are available at the [RISC-V International website](https://riscv.org/specifications/).
- **Compiled versions of the most recent drafts** of the specifications can be found on the [GitHub releases page](https://github.com/riscv/riscv-isa-manual/releases/latest).
- **HTML snapshots of the latest commit** can be viewed at the following locations:
- [Unprivileged spec](https://riscv.github.io/riscv-isa-manual/snapshot/unprivileged/)
- [Privileged spec](https://riscv.github.io/riscv-isa-manual/snapshot/privileged/)
- **Older official versions** of the specifications are archived at the [GitHub releases archive](https://github.com/riscv/riscv-isa-manual/releases/tag/archive).
The canonical list of **open-source RISC-V implementations' marchid CSR values** is available in the [marchid.md file](https://github.com/riscv/riscv-isa-manual/blob/main/marchid.md).
## Contributing
If you would like to contribute to this documentation, please refer to the [Documentation Developer's Guide](https://github.com/riscv/docs-dev-guide).
The recommended method for building the PDF files is to use the Docker Image, as described in the [RISC-V Docs Base Container Image repository](https://github.com/riscv/riscv-docs-base-container-image).
Alternative build methods, such as local builds and GitHub Action builds, are also available and described in the Documentation Developer's Guide.
## Images not rendered for EPUB files
If the eBook reader does not support embedded images, uncomment `:data-uri:` lines in `src/riscv-privileged.adoc` and `src/riscv-unprivileged.adoc`.
### Known devices that cannot handle embedded images
- PocketBook InkPad 3
## Repo Activity
