What problems are there with floating point emulation in the kernel?

[Dan Kegel]

Since it's very easy to avoid the use of floating point in
the kernel, it has not been a big issue.

Do you need to use floating point in the kernel for some reason?
- Dan

-----Original Message-----
From: Conn Clark
To: May Ling List
Sent: 4/24/2002 9:56 AM
Subject: What problems are there with floating point emulation in the
kernel?


Hello everyone,

	I've been told on this list that there are problems fpu
emulation
in the kernel. I was curoius as to what the errors are and the aftermath
(pun intended) that occurs when they are encountered. ( Like are the
values off a little bit or a lot, does it cause a kerel panic, does it
block interupts, does it unleash a terible monster that will destroy the
universe, etc... .)

	I'm also very supprised that Motorola and IBM haven't dedicated
some resources to address these problems since their fpu-less chips are
often used in linux designs.

thanks in advance,

	Conn
--

*****************************************************************
  If you live at home long enough, your parents will move out.
*****************************************************************

Conn Clark
Engineering Stooge				clark at esteem.com
Electronic Systems Technology Inc.		www.esteem.com


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