PPC float context only 4 Bytes per register?
Sergei Organov
osv at javad.ru
Tue Nov 13 15:43:13 UTC 2001
Dear Eric,
I didn't blame anybody for anything. I also don't complain. I just attempted
to answer Joel's question. If I need to use new exception processing, I'd fix
it in few minutes, but old exception processing still works fine for me, so
why bother?
BR,
Sergei Organov.
"VALETTE Eric" <valette at crf.canon.fr> writes:
> Sergei Organov wrote:
>
> > Joel,
> > Code in old exception processing has two variants selectable at compile
> > time:
>
> > 32 bits and 64 bits registers. I don't know any PPC variant that has 32
> > bits FPU registers though. Moreover, it seems that with old exception
> > processing none of PPC variants supported by RTEMS actually used 32 bits
> > registers. I can't imagine why in new exception processing code only
> > unused 32 bits code was left.
>
>
> Only those who make nothing makes no mistake :-) So It is probably my mistake
> when developping new_exception_processing code...
>
>
>
> But I guess it
>
> takes about 15mins to copy old_exception_processing/cpu_asm.S code code to
> new_exception_processing/cpu_asm.S.
>
>
> I have no time to do that right now. So either you do it or you stop
> complaining given the amount of time it represent...
>
>
> I do not use FPU in my application so never detected the bug... I wrote
> the new exception processing code that offers much more feature and a cleaner
> API, you can spend some time correcting the few bits left...
>
>
>
> --
> __
> / ` Eric Valette - Canon CRF
> /-- __ o _. Product Dev. Group Software Team Leader
> (___, / (_(_(__ Rue de la touche lambert
> 35517 Cesson-Sevigne Cedex
> FRANCE
> Tel: +33 (0)2 99 87 68 91 Fax: +33 (0)2 99 84 11 30
> E-mail: valette at crf.canon.fr http://www.crf.canon.fr
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