BOUNCE rtl@rtlinux.org: Approval required: (fwd)

[Der Herr Hofrat <der.herr@hofr.at>]

>From owner-rtl Thu Aug  2 14:56:09 2001
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From: "Norm Dresner" <ndrez@att.net>
To: <rtl@fsmlabs.com>
References: <200108012132.RAA17826@puma.me.ttu.edu> <3B6978C8.34523ACC@mtwilson.edu>
Subject: Re: [rtl] using the sin function in rtlinux
Date: Thu, 2 Aug 2001 16:54:08 -0400
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AIUI, the math coprocessor on an x86 CPU can be used in an RTL-module by
declaring that it uses FP math.  I don't believe that there are these kinds
of restrictions in other architectures.

    Norm

----- Original Message -----
From: Theo ten Brummelaar <theo@mtwilson.edu>
To: <rtl@fsmlabs.com>
Sent: Thursday, August 02, 2001 11:59 AM
Subject: Re: [rtl] using the sin function in rtlinux


> Wayne Dunkel wrote:
> >
> > I have included math.h in my source file, but gcc says that the
reference to sin is undefined. what should I do?
>
> Read a book on programing for the kernel. Functions like sin are not
> available in kernel space. I would suggest using a lookup table of some
> sort.
>
> Theo
>
>
> --
>                           Dr. Theo ten Brummelaar
>     The CHARA  Array-Georgia State University-Mount Wilson Observatory
>     http://www.chara.gsu.edu/~theo  Ph: 626-796-5405 Fax: 626-796-6717
>
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