Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

✨ add support for Zalrsc ISA extension #1181

Merged
merged 19 commits into from
Feb 8, 2025
Merged

✨ add support for Zalrsc ISA extension #1181

merged 19 commits into from
Feb 8, 2025

Conversation

stnolting
Copy link
Owner

This PR (re)adds support for the Zalrsc ISA extension that compormises two new instructions:

  • lr.w load word and register reservation
  • sc.w store word conditionally if reservation still valid

The RISC-V A extension is now fully supported if both subextstion are enabled:

  • Zaamo - atomic read-modify-write operations
  • Zalrsc - atomic reservation-set operations

@stnolting stnolting added enhancement New feature or request risc-v compliance Modification to comply with official RISC-V specs. HW Hardware-related labels Feb 8, 2025
@stnolting stnolting self-assigned this Feb 8, 2025
@stnolting stnolting marked this pull request as ready for review February 8, 2025 12:12
@stnolting stnolting merged commit 2b7d619 into main Feb 8, 2025
7 checks passed
@stnolting stnolting deleted the zalrsc branch February 8, 2025 15:14
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
enhancement New feature or request HW Hardware-related risc-v compliance Modification to comply with official RISC-V specs.
Projects
None yet
Development

Successfully merging this pull request may close these issues.

1 participant