Subject: Re: Exercises in patience -- NetBSD/i386 1.5 on a 4Meg 386DX/25
To: Henry Nelson <henry@irm.nara.kindai.ac.jp>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: port-i386
Date: 02/06/2001 20:46:02
On Tue, Feb 06, 2001 at 09:50:29AM +0900, Henry Nelson wrote:
> I never did get a definitive answer on or off the list from someone who
> _knows_, so I thought I would focus the question.
> 
> Is the following option only "useful" for 386DX machines that do NOT
> have a 387 math processor installed?

yes, otherwise programs needed FP intruction will fail with an illegal
instruction. 'df' is one of them I believe.

> Is it pointless to include this
> option when a 387 math processor is installed, or when the cpu is 486
> and higher?

Yes, if you have a math processor, you don't need it.
BTW I think some 486 lack the coproc :)

--
Manuel Bouyer <bouyer@antioche.eu.org>
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