Darren J Moffat <darren.mof...@oracle.com> wrote:
> On 22/12/2010 20:27, Garrett D'Amore wrote:
> > That said, some operations -- and cryptographic ones in particular --
> > may use floating point registers and operations because for some
> > architectures (sun4u rings a bell) this can make certain expensive
>
> Well remembered! There are sun4u optimisations that use the floating
> point unit but those only apply to the bignum code which in kernel is
> only used by RSA.
It may be a guess caused by the fact that integer division and multiplication
is inside the FPU on SPARC processors.
Jörg
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