From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (from majordomo@localhost) by pauillac.inria.fr (8.7.6/8.7.3) id SAA20594; Wed, 9 Jun 2004 18:26:05 +0200 (MET DST) X-Authentication-Warning: pauillac.inria.fr: majordomo set sender to owner-caml-list@pauillac.inria.fr using -f Received: from concorde.inria.fr (concorde.inria.fr [192.93.2.39]) by pauillac.inria.fr (8.7.6/8.7.3) with ESMTP id SAA20599 for ; Wed, 9 Jun 2004 18:26:04 +0200 (MET DST) Received: from pauillac.inria.fr (pauillac.inria.fr [128.93.11.35]) by concorde.inria.fr (8.12.10/8.12.10) with ESMTP id i59GQ3SH027301; Wed, 9 Jun 2004 18:26:03 +0200 Received: (from xleroy@localhost) by pauillac.inria.fr (8.7.6/8.7.3) id SAA20392; Wed, 9 Jun 2004 18:26:02 +0200 (MET DST) Date: Wed, 9 Jun 2004 18:26:02 +0200 From: Xavier Leroy To: Jon Harrop Cc: caml Subject: Re: [Caml-list] 32 bit floats, SSE instructions Message-ID: <20040609182602.D17538@pauillac.inria.fr> References: <200406081815.20679.jdh30@cam.ac.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0i In-Reply-To: <200406081815.20679.jdh30@cam.ac.uk>; from jdh30@cam.ac.uk on Tue, Jun 08, 2004 at 06:15:20PM +0100 X-Miltered: at concorde with ID 40C73A1B.000 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-Loop: caml-list@inria.fr X-Spam: no; 0.00; caml-list:01 floats:01 floats:01 quoting:01 caml-list:01 flamefest:01 -bit:01 ocaml:01 caml:01 advertising:97 types:03 types:03 generally:05 latter:06 usual:07 Sender: owner-caml-list@pauillac.inria.fr Precedence: bulk > > The reality is that 32 bit floats get used in the real > > world all over the place by 3D graphics guys. > > Don't read that, Xavier. I must stay I've stopped reading a while ago :-) I was about to post a long and detailed reply explaining the difference between computational types and storage types, why I think 32-bit floats might be useful as the latter but not at the former, quoting cycle counts from various processor manuals, mention what could conceivably be done in OCaml at minimal implementation costs, discuss SSE2 a bit, and generally answer the OP's initial questions. Then I looked again at my caml-list inbox and saw this ridiculous flamefest about who is / isn't qualified to talk about computer graphics, on top of the usual Felix advertising and C++ discussions. Then I decided not to post. I long for the days when the caml-list had about one message per day, but it was actually relevant to Caml. - Xavier Leroy ------------------- To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/ Beginner's list: http://groups.yahoo.com/group/ocaml_beginners