Re: [RFC] div64_64 support II

From: Andi Kleen
Date: Tue Mar 06 2007 - 09:04:44 EST


> 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?

-Andi
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