On Wed, 7 Feb 2001, Jun Sun wrote:
> I favor the libc approach as it is faster.
No difference in speed, actually. In both cases you switch to the kernel
mode when an FPU-related exception happens and then back to the user mode,
either after or before invoking the handler. The libc approach has the
advantage of running unprivileged.
> Unfortunately I don't think glibc for MIPS can be configured with
> --without-fp. I modified a patch to get glibc 2.0.6 working for no-fp config,
> but it is not a clean one. Is anybody working on that for the latest glibc
> 2.2?
You never want to configure glibc with the --without-fp option.
> Ironically for MIPS you MUST have the FPU emulater when the CPU actually has a
> FPU. :-)
The same for Alpha. You don't need a full emulator anyway -- most of it
can be left out for FPU-equipped systems.
--
+ Maciej W. Rozycki, Technical University of Gdansk, Poland +
+--------------------------------------------------------------+
+ e-mail: macro@ds2.pg.gda.pl, PGP key available +
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