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Re: MATH_EMULATE




To: Vit Herman <v.herman%sh.cvut.cz@localhost>

Subject: Re: MATH_EMULATE

From: "Perry E. Metzger" <perry%piermont.com@localhost>

Date: Mon, 14 Jan 2008 09:55:10 -0500


Vit Herman <v.herman%sh.cvut.cz@localhost> writes:
>>From my friend's 386:

Is this an actual 386?

> $ uname -a
> NetBSD mali 3.1 NetBSD 3.1 (GENERIC_TINY) #0: Tue Oct 31 04:28:25 UTC 2006
> builds%b0.netbsd.org@localhost:/home/builds/ab/netbsd-3-1-RELEASE/i386/200610302053Z-obj/home/builds/ab/netbsd-3-1-RELEASE/src/sys/arch/i386/compile/GENERIC_TINY
> i386
>
> $ ldd $(which ping)
> /sbin/ping:
>         -lm.0 => /lib/libm.so.0
>         -lipsec.2 => /lib/libipsec.so.2
>         -lc.12 => /lib/libc.so.12

Hrm. I note that ldd claims that you are linking against the correct
libm, so sqrt should in fact be handled by the library and not by the
non-existent FPU. This machine is a machine where ping actually
crashes on sqrt when you try to run it?

> $ sysctl machdep.fpu_present
> machdep.fpu_present = 0
[...]
> I can post results from my machines later today, or is this sufficient?

Well, it would be best to have all the tests conducted on the same
machine so we don't have accidents...

Perry
-- 
Perry E. Metzger                perry%piermont.com@localhost



Follow-Ups:

Re: MATH_EMULATE
From: Vit Herman


References:

MATH_EMULATE
From: Andrew Doran

Re: MATH_EMULATE
From: Steve Woodford

Re: MATH_EMULATE
From: Perry E. Metzger

Re: MATH_EMULATE
From: Jared D. McNeill

Re: MATH_EMULATE
From: Perry E. Metzger

Re: MATH_EMULATE
From: Jared D. McNeill

Re: MATH_EMULATE
From: Perry E. Metzger

Re: MATH_EMULATE
From: Pierre Dubuc

Re: MATH_EMULATE
From: Perry E. Metzger

Re: MATH_EMULATE
From: Pierre Dubuc

Re: MATH_EMULATE
From: Perry E. Metzger

Re: MATH_EMULATE
From: Vit Herman




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