Hello
There is powerpc compiler writers guide book.
Would that be appropiate? I don't have a copy but I have seen it floating
around.
JD
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| | [EMAIL PROTECTED] |
| | (Brad Boyer) |
| | |
| | 06/25/2003 04:56 |
| | PM |
| | |
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| To: paubert <[EMAIL PROTECTED]>
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| cc: Benjamin Herrenschmidt <[EMAIL PROTECTED]>, Oliver Ripka
<[EMAIL PROTECTED]>, |
| debian-powerpc@lists.debian.org
|
| Subject: Re: some basic problems with ppc assembler
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On Wed, Jun 25, 2003 at 05:02:40PM +0000, paubert wrote:
> It is specified in the ABI for functions with variable number of
argumentsi:
> the crxor indicates that no parameters have been passed in the floating
point
> registers so an integer only task will not save fpr1-fpr8 to walk the
> argument list in va_arg. OTOH if you call a variadic functions with
> floating point parameters, the call will be preceded by creqv 6,6,6.
Do you actually have a document for the official ABI? I found a link
to a document in some old messages, but it was a dead link. A generic
search of the web didn't turn up anything, although I might have
been searching for the wrong words...
I've been trying to piece it together based on gcc, but that's
kind of a clumsy way to figure it out.
Brad Boyer
[EMAIL PROTECTED]
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