From: stuffle@pcii.net (Kenneth W. Sodemann)
Subject: Re: floating point problem
Date: 1997/03/13
Date: 1997-03-13T00:00:00+00:00 [thread overview]
Message-ID: <33275cc2.412517674@news.mwci.net> (raw)
In-Reply-To: dewar.858142750@merv
On 12 Mar 1997 00:00:30 -0500, dewar@merv.cs.nyu.edu (Robert Dewar)
wrote:
>Larry asks
>
><<So can anyone give an example for the Intel-challenged regarding how
>one would easily detect this float-challenged hardware at runtime in
>order to issue a nastygram ?>>
>
>The proper code is a little delicate, but is documented in the relevant
>Intel microprocessor manuals. Note that all DX chips,
Almost true. All DX 486 chips have built in FPUs. On the 386, the
SX/DX designation meant something else all together (external bus data
size). You needed the 80387 co-processor for floating point.
>and of course all
>Pentiums have built-in floating-point, so this is really only a concern
>with ancient machines that you cannot purchase any longer.
>
Agreed with new machines. However, there are tons of older 386 and
486SX machines floating around out there still being used without the
floating point unit.
--
Ken Sodemann
stuffle@pcii.net
http://users.mwci.net/~stuffle
next prev parent reply other threads:[~1997-03-13 0:00 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-02-26 0:00 floating point problem bill
1997-03-02 0:00 ` Corbin Dunn
1997-03-02 0:00 ` tmel
1997-03-02 0:00 ` Robert Dewar
1997-03-03 0:00 ` Kenneth W. Sodemann
1997-03-04 0:00 ` Robert Dewar
1997-03-05 0:00 ` Larry Kilgallen
1997-03-05 0:00 ` Robert Dewar
1997-03-06 0:00 ` Larry Kilgallen
1997-03-09 0:00 ` Robert Dewar
1997-03-10 0:00 ` Fergus Henderson
1997-03-10 0:00 ` Robert Dewar
1997-03-10 0:00 ` Larry Kilgallen
1997-03-12 0:00 ` Robert Dewar
1997-03-12 0:00 ` Joel VanLaven
1997-03-12 0:00 ` Robert Dewar
1997-03-12 0:00 ` Larry Kilgallen
1997-03-13 0:00 ` Robert Dewar
1997-03-14 0:00 ` Larry Kilgallen
1997-03-15 0:00 ` Robert Dewar
1997-03-13 0:00 ` Kenneth W. Sodemann [this message]
1997-03-15 0:00 ` Robert Dewar
1997-03-16 0:00 ` Larry Kilgallen
1997-03-06 0:00 ` Geert Bosch
1997-03-06 0:00 ` Robert Dewar
1997-03-06 0:00 ` Fergus Henderson
1997-03-06 0:00 ` Scott Ingram
1997-03-17 0:00 ` Tom Moran
1997-03-17 0:00 ` Robert I. Eachus
1997-03-17 0:00 ` Robert Dewar
1997-03-18 0:00 ` Robert I. Eachus
-- strict thread matches above, loose matches on Subject: below --
1997-03-27 0:00 Floating " Kees de Lezenne Coulande
1997-03-28 0:00 ` Robert Dewar
1997-03-28 0:00 ` Larry Kilgallen
1997-03-28 0:00 ` Tom Moran
1997-03-28 0:00 ` Robert Dewar
1997-03-29 0:00 ` Tom Moran
1997-03-30 0:00 ` Larry Kilgallen
1997-03-31 0:00 ` Robert Dewar
1997-04-01 0:00 ` Larry Kilgallen
1997-04-01 0:00 ` Tom Moran
1997-04-02 0:00 ` Larry Kilgallen
1997-04-02 0:00 ` Robert Dewar
1997-04-03 0:00 ` Jerry van Dijk
1997-04-03 0:00 ` Jerry van Dijk
1997-04-03 0:00 ` Jerry van Dijk
1997-04-02 0:00 ` Robert Dewar
1997-03-31 0:00 ` Robert Dewar
1997-03-31 0:00 ` Tom Moran
1997-03-31 0:00 ` Robert Dewar
1997-03-28 0:00 ` J-P. Rosen
1997-03-28 0:00 ` Robert Dewar
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