From mint-bounce@lists.fishpool.fi Thu Jan 24 15:17:52 2008 X-ME-UUID: 20080124192705939.E573370000F3@mwinf2f08.orange.fr Date: Thu, 24 Jan 2008 20:27:05 +0100 From: Patrice Mandin To: mint@lists.fishpool.fi Subject: Re: [MiNT] Alignment Message-Id: <20080124202705.451088a8.mandin.patrice@wanadoo.fr> In-Reply-To: <4798E197.6050500@freesbee.fr> References: <4798E197.6050500@freesbee.fr> Organization: Chez moi X-Mailer: Sylpheed version 1.0.4 (GTK+ 1.2.10; i386-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 X-ecartis-version: Ecartis v1.0.0 Sender: mint-bounce@lists.fishpool.fi Errors-to: mint-bounce@lists.fishpool.fi X-original-sender: mandin.patrice@wanadoo.fr Precedence: bulk List-help: List-unsubscribe: List-Id: X-List-ID: List-subscribe: List-owner: List-post: Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by mail.sparemint.org id m0OKHpji028531 Le Thu, 24 Jan 2008 20:05:59 +0100 Vincent Rivière a écrit: > Let's talk about alignment ! > > Question 1: On a standard TT or Falcon with 68030, is it faster to do > a move.l to an address multiple of 4 than to an address not multiple > of 4 ? In the caches, maybe no difference. For the TT, FastRam also if it's wired on a 32bits data bus. And on Falcon, FastRam with an accelerator card of course, like ct60 or ab40. ST-RAM is always 16bits data bus. -- Patrice Mandin WWW: http://pmandin.atari.org/ Programmeur Linux, Atari Spécialité: Développement, jeux