RISC-V Technical Specifications Archive
This page contains the list of all archived ratified technical specification version. For the most recent versions of any specification, see the RISC-V Technical Specifications page.
NOTE: specifications not found on this page have only one version and thus are only available on the RISC-V Technical Specifications page.
Archive Contents
ISA Specifications
These sections contain previous, complete versions of the two ISA specification volumes.
The RISC-V Instruction Set Manual Volume I: Unprivileged ISA
Version | Publish Date | RISC-V Community | Source Repository |
---|---|---|---|
Dec. 2019 |
The RISC-V Instruction Set Manual Volume II: Privileged Architecture
Version | Publish Date | RISC-V Community | Source Repository |
---|---|---|---|
Dec. 2021 |
ISA Ratification Specifications
This section contains the specifications which were independently ratified and subsequently have been pulled into the appropriate ISA volumes published on the RISC-V Technical Specifications page.
Specification name | Ratified | New extension(s) or Profile(s) | RISC-V Community | Source |
---|---|---|---|---|
March 2024 | Smcdeleg, Ssccfg | |||
March 2024 | Zimop, Zcmop |
| ||
February 2024 | Smcsrind, Sscsrind | |||
November 2023 | Zicond | |||
November 2023 | Svadu | |||
RISC-V Cycle and Instret Privilege Mode Filtering (Smcntrpmf) | November 2023 | Smcntrpmf | ||
November 2023 | Zacas | |||
RISC-V Cryptography Extensions Volume II: Vector Instructions | September 2023 | Zvbb, Zvbc, Zvkb, Zvkg, Zvkn, Zvknc, Zvkned, Zvkng, Zvknha, Zvknhb, Zvks, Zvksc, Zvksed, Zvksg, Zvksh, Zvkt | ||
"Zfa" Standard Extension for Additional Floating-Point Instructions | September 2023 | Zfa |
| |
June 2023 | Smaia, Ssaia | |||
“Zvfh/Zvfhmin:” Vector Extension for Half-Precision Floating-Point Arithmetic/Vector Extension for Minimal Half- | June 2023 | Zvfh, Zvfhmin |
| |
May 2023 | Zihintntl |
| ||
April 2023 | Zca, Zcb, Zcd, Zce, Zcf, Zcmp, Zcmt | |||
March 2023 | Zicntr, Zihpm |
| ||
January 2023 | RV32E/RV64E | |||
January 2023 | Ztso | |||
November 2022 | Zawrs |