riscv_smcsrind_sscsrind

Draft Extension: Smcsrind and Sscsrind

• Branch: riscv-smcsrind-sscsrind
• Tracking PR: #125 (view Pull Request and Diff)
• Mailing List:
  • Not yet

Feature Description

This commit adds indirect CSR access extensions (Smcsrind / Sscsrind) and their CSRs based on the latest documentation (as of 2023-08-07): https://docs.google.com/document/d/1ZxTSUWX_9_VafWeA0l1ci9RFjmivLuZn-US9IbFOEWY

Because six CSRs are duplicates of Smaia / Ssaia extensions, it adds complex CSR handling for those.