[OpenBIOS] patch: machine dependent config

Segher Boessenkool segher at chello.nl
Thu Jun 6 16:58:03 CEST 2002

Thank you for this.

I think I'll make it more general, though, with some perl script
to test what sizes are available etc., and generating a header file
from that info.

Don't be alarmed by the "cruft" in paflof.c anyway; it's just the
unix-specific userland version; it is _allowed_ to contain filthy
debugging stuff ;)

Btw, paflof compiles cleanly both on 32 and 64 bit systems now.
Oh, and the 128-bit type is only needed on 64-bit hosts if double
cell arithmetic is needed, and then only if that arithmetic _actually_
uses "big" values (i.e., we don't really have a problem here now :) )

I'll look into this some more...


Stefan Reinauer wrote:
> Hi,
> ok, this time I redid the patch to make paflof sane on 64bit platforms
> in a cleaner way, using abstracted defines that are dependent on certain
> platform specifics. As this is platform dependent stuff which has
> basically nothing to do with paflof itself, I moved it to a new file:
> machdep.h. I moved the sanity check out of paflof.c into machdep.c,
> which we will probably not need to link in case we know an
> architecture/compiler combination is sane.
> We really need to make sure we are 64bit clean from the beginning so we
> recognize early what problems we might have to face getting paflof
> portable.
> Segher, is this ok to check in from your side? If so, please do!
>   Stefan
> --
> The x86 isn't all that complex - it just doesn't make a lot of
> sense.          -- Mike Johnson, Leader of 80x86 Design at AMD
>                                   Microprocessor Report (1994)
>   ------------------------------------------------------------------------
>    paflof-machdep2.diffName: paflof-machdep2.diff
>                        Type: Plain Text (text/plain)

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