[Libre-soc-dev] [RFC] SVP64 Data-dependent fail-first on CR operations (crand, cror, etc)

lkcl luke.leighton at gmail.com
Sun Aug 29 14:01:40 BST 2021

On August 28, 2021 4:36:02 PM UTC, lkcl <luke.leighton at gmail.com> wrote:

>other operations which *actually* operate on entire (complete) CR
>Fields are usually only 3 bits for specifying the CR Field.  these
>*would* need the index mode.


is it worthwhile to use the elwidth bits of the 24-bit RM, which are meaningless for at least the result if the result is a 4 bit CR Field, to provide additional fields?

this is already done for SV Branches, the VLi field is for example in elwidth bit zero in SV Branch RM.


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