From: Julian Seward <jseward@acm.org>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] cvttps2dq, movdq2q, movq2dq incorrect behaviour
Date: Tue, 20 Jun 2006 12:48:35 +0100 [thread overview]
Message-ID: <200606201248.36106.jseward@acm.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0606201524080.2085@home.oyster.ru>
On Tuesday 20 June 2006 12:29, malc wrote:
> The signature of movdq2q is Pq, VRq and for movq2dq - Vo, PRq it appears
> that translate.c gets it backwards, attached patch should deal with it.
Cool.
> As for cvttps2dq i ran it with interpreter which uses outdated(i.e. non
> soft-float) conversion routines and it passed, so my guess would be that
> this is float32_to_int32_round_to_zero vs (int32_t) cast issue.
I had a feeling this is a garbage-in-memory (or regs, or somewhere)
problem. Reason is that the wrong results kept changing as I cut
the full test program down to just the small one I posted. Can you
try on a vanilla build of i386-softmmu from cvs?
J
next prev parent reply other threads:[~2006-06-20 11:48 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-20 10:54 [Qemu-devel] cvttps2dq, movdq2q, movq2dq incorrect behaviour Julian Seward
2006-06-20 11:29 ` malc
2006-06-20 11:48 ` Julian Seward [this message]
2006-06-20 14:26 ` malc
2006-06-21 0:31 ` Julian Seward
2006-06-21 8:21 ` malc
2006-06-21 11:04 ` malc
2006-06-21 23:01 ` Julian Seward
2006-06-20 13:15 ` RE : " Sylvain Petreolle
2006-06-20 13:51 ` malc
2006-06-20 14:13 ` Julian Seward
2006-06-20 15:06 ` RE : " Sylvain Petreolle
2006-06-20 15:14 ` Guillaume POIRIER
2006-06-20 14:17 ` RE : " Jens Axboe
2006-06-20 14:23 ` Jens Axboe
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