Re: arithmetic functions for linux driver

[VINOD GOPAL]

The range of input is varying.
Iam looking for floating point arithmetic functions
like log10, pow , sin ,exp , cos etc.

-vg
--- John Bradford <john@xxxxxxxxxxxx> wrote:
> >  I need to use the arithmetic functions like sin,
> cos,
> > exp, log, etc in linux device driver.
> > 
> >  On search read , not to use libm from kernel
> driver
> > as it will harm the fpu registers.
> >   
> >   Do you have any insight how to support these
> > functions in linux driver or any code that is
> > available which I can make use of?
> 
> What exactly are you trying to do?  Why not simply
> create a look up
> table for the functions you need, if the expected
> range of input
> values is small?
> 
> John.


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