Re: [RFC] div64_64 support II

[David Miller]

From: ilmari@xxxxxxxxxx (Dagfinn Ilmari Mannsåker)
Date: Tue, 06 Mar 2007 18:43:14 +0100

> Andi Kleen <andi@xxxxxxxxxxxxxx> writes:
> 
> > 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?
> 
> SPARCv7 (sun4/sun4c) doesn't have hardware mul/div. This includes
> SparcStation 1, 1+, 2, SLC, ELC, IPC and IPX.

Right and the cypress sun4m parts don't do multiply/divide in
hardware either.

I believe the Alpha does divide in software too, see
arch/alpha/lib/divide.S
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