| To: | Joe deBlaquiere <jadb@redhat.com> |
|---|---|
| Subject: | Re: NON FPU cpus - way to go |
| From: | Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> |
| Date: | Thu, 8 Feb 2001 09:45:57 +0100 (MET) |
| Cc: | Jun Sun <jsun@mvista.com>, Alan Cox <alan@lxorguk.ukuu.org.uk>, "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>, Florian Lohoff <flo@rfc822.org>, linux-mips@oss.sgi.com, ralf@oss.sgi.com |
| In-reply-to: | <3A81B388.1090806@redhat.com> |
| Sender: | owner-linux-mips@oss.sgi.com |
On Wed, 7 Feb 2001, Joe deBlaquiere wrote:
> Jun Sun wrote:
> > Alan Cox wrote:
> >> Also we missed a trick on the x86 and I want to fix that one day, which is
> >> to have an __fpu ELF segment so if you boot an FPU emu kernel on an fpu
> >> box you regain 47K
> >
> >
> > Ironically for MIPS you MUST have the FPU emulater when the CPU actually
> > has a
> > FPU. :-)
>
> I'm confused here... why is this?
Because a MIPS CPU may implement only some functionality with some operands,
and decide to throw an `unsupported' exception if the operation is too complex.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven ------------- Sony Software Development Center Europe (SDCE)
Geert.Uytterhoeven@sonycom.com ------------------- Sint-Stevens-Woluwestraat 55
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