Re: [linux-mac68k] Re: PowerBook 540c
On Tue, 26 Oct 2004, Finn Thain wrote:
> On Tue, 26 Oct 2004, Erik C.J. Laan wrote:
> > Rick Genter wrote:
> > >> I'd like to volunteer to help make the PowerBook 540c a first-class
> > >> Linux citizen. My question: where would my efforts be best applied?
> > >> 68LC040 support? Nativing booting? Somewhere else?
> >
> > LC040 support is tricky because of a bug that prevents FPU emulation
> > from working correctly up to now.
>
> I guess the CPU in my LC475 is free of this bug, since the in-kernel FPU
> emulation works fine with 2.6.8.1 (though it seems a lot slower than the
> full 040).
>
> > There's been some talk about ways to work around this bug on the
> > linux/m68k and linux/mac68k maillists (CCed), but it's not been done
> > yet.
>
> As someone else pointed out recently, just having some way to determine
> the presence or absence of the bug would be good.
Indeed. Then the kernel can abort and print a message if it's incompatible with
buggy LC040s.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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