From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1Doa9C-00038U-Nq
	for qemu-devel@nongnu.org; Sat, 02 Jul 2005 01:02:34 -0400
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1Doa2D-0002PG-UP
	for qemu-devel@nongnu.org; Sat, 02 Jul 2005 00:55:23 -0400
Received: from [199.232.76.173] (helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1Doa1z-0002Le-Vw
	for qemu-devel@nongnu.org; Sat, 02 Jul 2005 00:55:08 -0400
Received: from [66.54.152.27] (helo=jive.SoftHome.net)
	by monty-python.gnu.org with smtp (Exim 4.34) id 1DoZpt-0007iN-EQ
	for qemu-devel@nongnu.org; Sat, 02 Jul 2005 00:42:37 -0400
From: Mulyadi Santosa <a_mulyadi@softhome.net>
Subject: Re: Re: [Qemu-devel] mini documentation of "info registers" output
Date: Sat, 2 Jul 2005 11:12:10 +0700
References: <200507011133.49905.a_mulyadi@softhome.net>
	<200507011317.43863.paul@codesourcery.com>
In-Reply-To: <200507011317.43863.paul@codesourcery.com>
MIME-Version: 1.0
Content-Type: text/plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Message-Id: <200507021112.10750.a_mulyadi@softhome.net>
Reply-To: a_mulyadi@softhome.net, qemu-devel@nongnu.org
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Paul Brook <paul@codesourcery.com>, qemu-devel@nongnu.org

Hello Paul...

> > CCD : Compiled Code Destination (?)
>
> Condition Code Source.

Or Condition Code Destination?

> These 3 are used to implement lazy flag evaluation. Most x86
> instructions set the condition code flags, but only a relatively
> small subset of instructions actually use these flags.

hm, i see....BTW, these two lazy flags, CCS and CCD, they are the 
representation of EFLAGS? CMIIW. If yes, can I assume that they have 
same format as EFLAGS?

anyway, it is safe to frequently ignore flags? For example, if MUL 
generate overflow and set Zero Flag, Qemu must be aware of it, right? 
Or we can still safely ignore it?

regards

Mulyadi