Subject: Re: AltiVec and *jmp.
To: Jason R Thorpe <firstname.lastname@example.org>
From: Matt Thomas <email@example.com>
Date: 07/02/2002 08:31:10
At 08:20 AM 7/2/2002, Jason R Thorpe wrote:
>On Tue, Jul 02, 2002 at 08:06:46AM -0700, Matt Thomas wrote:
> > Except that the SVR4 ABI extentions for AltiVec mandate saving the
> > caller-saved AltiVec registers. The question comes down to whether
> > we want to ABI-compliant.
>Ah, it's specifically mentioned for setjmp/longjmp? What about signals?
[opps, the ones saved are v20-v31 which are callee-saved.]
Nothing about signals. Hmmm, signals could wipe out the caller-saved
ones. Ewwww. Got to think about that.
Matt Thomas Internet: firstname.lastname@example.org
3am Software Foundry WWW URL: http://www.3am-software.com/bio/matt/
Cupertino, CA Disclaimer: I avow all knowledge of this message