> > On Fri, 9 Mar 2001, Matt Dillon wrote:
> >
> > > You can't safely do FP instructions in the kernel. I do not
> > > believe the FP context is saved/restored between processes in
kernel
> > > mode, only from user mode. The kernel saves and restores the fp
> state
> > > in the few places it uses FP instructions (for memory copying).
> > > In anycase, I think there'd be a problem here.
> >
> > The last time I tried using FP in a device driver, it caused kernel
> > panics (I hate it when that happens...)
>
> Seeing as the original requestor wanted to use FP functions to do number
> crunching in screen savers, would adding a few strategic FP save/restore
> calls in the syscons driver be enough to allow FP calculations in screen
> saver modules?
Please forget I ever said this. I took a look at what would be involved, and
it's wayyyy too deep for me to even begin about thinking about it.
--
Matt Emmerton
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