tree 64ce01fe2f218e7574ae736ff5e52f81b792e336
parent 3cb8bae4d72cdbe9998db7b4f6c139c06e7e0430
author Tor Jeremiassen <torerik@google.com> 1734044217 -0800
committer Tor Jeremiassen <torerik@google.com> 1734045673 -0800

Adds a new CSR type RiscVShadowCsr that allows a CSR to provide a more
restrictive view of another CSR.

Adds cycle/cycleh and instret/instreth as shadow CSRs

PiperOrigin-RevId: 705640436
Change-Id: I875751b7d31ee319b8d2edbcedb9a942bb267085