From: Nathan Froyd <froydnj@codesourcery.com>
To: Torbjorn Granlund <tg@gmplib.org>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Bug report about x86 'bt' insn
Date: Sat, 6 Nov 2010 14:59:33 -0400 [thread overview]
Message-ID: <20101106185932.GB26083@nightcrawler> (raw)
In-Reply-To: <86wroqmhso.fsf@shell.gmplib.org>
On Sat, Nov 06, 2010 at 07:24:39PM +0100, Torbjorn Granlund wrote:
> malc <av1474@comtv.ru> writes:
>
> ZF is undefined according to AMD's 24594.pdf page 69.
>
> Ah, you're right. It seems that all existing x86 implementations leave
> ZF alone, though. (I am not arguing that qeum is broken, the bug is in
> my code.)
FWIW, the Intel manuals (253666, June 2010) state that the ZF flag is
unaffected, not just undefined.
-Nathan
next prev parent reply other threads:[~2010-11-06 18:59 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-06 14:42 [Qemu-devel] Bug report about x86 'bt' insn Torbjorn Granlund
2010-11-06 17:16 ` malc
2010-11-06 18:24 ` Torbjorn Granlund
2010-11-06 18:55 ` malc
2010-11-06 18:59 ` Nathan Froyd [this message]
2010-11-06 19:22 ` malc
2010-11-06 19:25 ` malc
2010-11-10 14:15 ` Torbjorn Granlund
2010-11-10 14:19 ` malc
2010-11-10 14:38 ` Torbjorn Granlund
2010-11-10 15:08 ` malc
2010-11-10 15:45 ` malc
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