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Date: Wed, 27 Aug 2008 22:26:42 +0300
From: "Blue Swirl" <blauwirbel@gmail.com>
Subject: Re: [Qemu-devel] linux-user exception handling
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To: qemu-devel@nongnu.org

On 8/27/08, Vince Weaver <vince@csl.cornell.edu> wrote:
> On Wed, 27 Aug 2008, Blue Swirl wrote:
>
> >
> > With this patch I get the sequence AA to MM and then back to AA.
> > Strangely Sparc32 prints AA to MM and then back to BB, never reaches
> > AA.
> >
>
>  Your patch is much better than mine, with it all of the gcc spec2k inputs
> work.  So I'm all for committing it.

Okay, I committed it.

The address where the windows are saved may be incorrect, perhaps the
stack bias of -2047 should be added?

>  One semi-related thing, according to the documentation V9 increments CWP on
> save and decrements it on restore, while V8 does the opposite.  I'm not sure
> if it is worth making the Qemu save/restore code behave that way too.

Maybe, I can't remember why I did it like that. It could have had
something to with register layout.