On Wed, Jan 7, 2026 at 2:24 PM Eric Botcazou <[email protected]> wrote:
>
> > I probably asked before - but I can only find syntactic documentation of
> > VIS, not semantics (I find a few compare instructions involving GPRs,
> > possibly for the result). Is there a public ISA spec that has all the
> > details somewhere?
>
> You need the UltraSPARC Architecture documents, there are 4 of them publicly
> available (UA2005, UA2007, UA2011, UA2015) but the last one (UA2017) is not.
Thanks, that contained the relevant bits I was searching for (fpcmp*{8,16,32}
result specification). Indeed we need to take endianess into account for
integer mode masks. Possibly that endianess is a different one than that
of the endianess of GPRs (until that happens we won't care). I guess the
"safest" way would have been to use shift + and instead of bit-field-refs.
Richard.
> --
> Eric Botcazou
>
>
