From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.33)
	id 1CZGqM-0002dP-Q0
	for qemu-devel@nongnu.org; Tue, 30 Nov 2004 17:51:35 -0500
Received: from [199.232.76.173] (helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.33) id 1CZGqJ-0002a6-KG
	for qemu-devel@nongnu.org; Tue, 30 Nov 2004 17:51:31 -0500
Received: from [129.104.30.34] (helo=mx1.polytechnique.org)
	by monty-python.gnu.org with esmtp (Exim 4.34) id 1CZGey-0003Yh-QB
	for qemu-devel@nongnu.org; Tue, 30 Nov 2004 17:39:49 -0500
Received: from localhost (localhost [127.0.0.1])
	by djali.polytechnique.org (Postfix) with ESMTP id 982E333251
	for <qemu-devel@nongnu.org>; Tue, 30 Nov 2004 23:39:47 +0100 (CET)
Received: from djali.polytechnique.org ([127.0.0.1])
	by localhost (localhost [127.0.0.1]) (amavisd-new, port 10024)
	with ESMTP id 01845-04 for <qemu-devel@nongnu.org>;
	Tue, 30 Nov 2004 23:39:47 +0100 (CET)
Received: from bellard.org (unknown [84.99.204.62])
	(using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
	(No client certificate requested)
	by ssl.polytechnique.org (Postfix) with ESMTP id 50FF333204
	for <qemu-devel@nongnu.org>; Tue, 30 Nov 2004 23:39:47 +0100 (CET)
Message-ID: <41ACF6C8.8040302@bellard.org>
Date: Tue, 30 Nov 2004 23:40:08 +0100
From: Fabrice Bellard <fabrice@bellard.org>
MIME-Version: 1.0
Subject: Re: [Qemu-devel] Block chaining question
References: <Pine.LNX.4.61.0411111244540.10262@hibernia.jakma.org>	<Pine.LNX.4.61.0411280453560.6275@sheen.jakma.org>	<200411281718.04223.a_mulyadi@softhome.net>	<Pine.LNX.4.61.0411281030390.18143@hibernia.jakma.org>
	<A507FCA0-4145-11D9-8482-000A95B90C24@chesstrain.com>
In-Reply-To: <A507FCA0-4145-11D9-8482-000A95B90C24@chesstrain.com>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
Reply-To: 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: qemu-devel@nongnu.org

Shivkumar Shivaji wrote:
> Hi,
>      I have done a quick perusal of the code. I was wondering if block 
> chaining is performed for conditional jumps? If I want to implement such 
> a feature would it have to be done in dyngen? I saw references to 
> __op_jmp and cond_jump. However, there does not seem to be chaining 
> based on conditional jumps. Am I right?

Block chaining is done on conditional jumps too, but it could be more 
optimised with more host specific assembly code.

Fabrice.