[Libre-soc-isa] [Bug 1077] New: evaluate removing /vec234 from instructions, move subvl to SVSTATE

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Wed May 3 03:55:00 BST 2023


https://bugs.libre-soc.org/show_bug.cgi?id=1077

            Bug ID: 1077
           Summary: evaluate removing /vec234 from instructions, move
                    subvl to SVSTATE
           Product: Libre-SOC's first SoC
           Version: unspecified
          Hardware: Other
                OS: Linux
            Status: CONFIRMED
          Severity: enhancement
          Priority: ---
         Component: Specification
          Assignee: lkcl at lkcl.net
          Reporter: lkcl at lkcl.net
                CC: libre-soc-isa at lists.libre-soc.org
   NLnet milestone: ---

there is an anomaly in SVP64 at the moment: subvl is not
part of SVSTATE, it is part of the prefix.
it needs to be evaluated if it is sensible to add subvl
to SVSTATE, freeing up 2 bits in RM Prefixes.

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