Re: [RFC] div64_64 support II

[H. Peter Anvin]

Andi Kleen wrote:
> > The problem with these algorithms that tradoff one or more
> > multiplies in order to avoid a divide is that they don't
> > give anything and often lose when both multiplies and
> > divides are emulated in software.
>
> Actually on rereading this: is there really any Linux port
> that emulates multiplies in software? I thought that was only
> done on really small microcontrollers or smart cards; but anything
> 32bit+ that runs Linux should have hardware multiply, shouldn't it?

SPARC < v8 does multiplies using an MSTEP instruction.

	-hpa
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