From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Original-To: caml-list@yquem.inria.fr Delivered-To: caml-list@yquem.inria.fr Received: from nez-perce.inria.fr (nez-perce.inria.fr [192.93.2.78]) by yquem.inria.fr (Postfix) with ESMTP id 664F7BB9C for ; Fri, 18 Nov 2005 04:29:25 +0100 (CET) Received: from zproxy.gmail.com (zproxy.gmail.com [64.233.162.202]) by nez-perce.inria.fr (8.13.0/8.13.0) with ESMTP id jAI3TOke016181 for ; Fri, 18 Nov 2005 04:29:25 +0100 Received: by zproxy.gmail.com with SMTP id x3so91761nzd for ; Thu, 17 Nov 2005 19:29:24 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=sb+sy0e2ONU0DxvAVIIG8a6/8DRccwsGmehHmBHJsXKMmHepockZsoKU+xqOhZiAHavPJWQPwBxVMl0cc6nfFSXVhEkHMTBB/IQtrE8ZRrQY/tPUnCyNHioRbUjony46+ic+bWc/sjgVxNA234hw+xxEtqi9YCC/DZZgTsJiw2E= Received: by 10.64.179.15 with SMTP id b15mr2895190qbf; Thu, 17 Nov 2005 19:29:24 -0800 (PST) Received: by 10.64.10.5 with HTTP; Thu, 17 Nov 2005 19:29:24 -0800 (PST) Message-ID: Date: Fri, 18 Nov 2005 16:29:24 +1300 From: Jonathan Roewen Subject: Re: [Caml-list] doing MMX through ocaml Cc: caml-list@yquem.inria.fr In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <20051118104926.3d9ffdc0.ocaml-erikd@mega-nerd.com> X-Miltered: at nez-perce with ID 437D4A94.001 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-Spam: no; 0.00; caml-list:01 ocaml:01 fft:01 char:01 ints:01 functions:01 int:01 floats:02 string:02 mmx:04 mmx:04 i'd:05 core:06 function:08 i'm:08 X-Spam-Checker-Version: SpamAssassin 3.0.3 (2005-04-27) on yquem.inria.fr X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RCVD_BY_IP autolearn=disabled version=3.0.3 > I'm pretty sure you need at least SSE for MPEG. The core function is an > 8x8 2D FFT. You *might* be able to do in fixed point (and thus in MMX), > but the SSE version would be a lot easier to get right. Well, I'd be basing my code on libmpeg2 .. which has an MMX only optimised version. Anyways, another question: is int64 boxed? I presume it would be, like floats. sooo, a 8 char string would be better? And functions to convert to ints? Since MMX is all 64bit.... Jonathan