Public review for standard extensions Ztso

Skip to first unread message

Earl Killian

Aug 19, 2022, 2:34:04 PM8/19/22
We are delighted to announce the start of the public review period for the following proposed standard extension to the RISC-V ISA:


The review period begins today, 2022-08-19, and ends on 2022-10-03 (inclusive).

This extension is part of the Unprivileged Specification.

These extensions have been part of The RISC-V Instruction Set Manual Volume I: Unprivileged ISA
for a long time, but was never ratified. This spec may be found in Chapter 25 of the PDF at:

which was generated from the source available in the following GitHub repo:

To respond to the public review, please either email comments to the public isa-dev mailing list or add issues and/or pull requests (PRs) to the Unprivileged ISA GitHub repo: . We welcome all input and appreciate your time and effort in helping us by reviewing the specification.

During the public review period, corrections, comments, and suggestions, will be gathered for review by the Unprivileged ISA Committee. Any minor corrections and/or uncontroversial changes will be incorporated into the specification. Any remaining issues or proposed changes will be addressed in the public review summary report. If there are no issues that require incompatible changes to the public review specification, the Unprivileged ISA Committee will recommend the updated specifications be approved and ratified by the RISC-V Technical Steering Committee and the RISC-V Board of Directors.

Thanks to all the contributors for all their hard work.

Earl Killian
Vice Chair, Unprivileged ISA
Reply all
Reply to author
0 new messages