From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham
	autolearn_force=no version=3.4.4
X-Google-Thread: 103376,8c0fcfc0a87e61fc
X-Google-NewGroupId: yes
X-Google-Attributes: gida07f3367d7,domainid0,public,usenet
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news1.google.com!news4.google.com!proxad.net!feeder1-2.proxad.net!feeder.erje.net!newsfeed.straub-nv.de!news.musoftware.de!wum.musoftware.de!news.weisnix.org!newsfeed.ision.net!newsfeed2.easynews.net!ision!newsfeed.arcor.de!newsspool4.arcor-online.net!news.arcor.de.POSTED!not-for-mail
Date: Sat, 02 Oct 2010 22:01:53 +0200
From: Georg Bauhaus <rm-host.bauhaus@maps.futureapps.de>
User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US;
 rv:1.9.2.9) Gecko/20100915 Thunderbird/3.1.4
MIME-Version: 1.0
Newsgroups: comp.lang.ada
Subject: Re: simple question on long_float/short_float
References: <i81a1r$3or$1@speranza.aioe.org> <i86svu$6ki$1@speranza.aioe.org>
 <i87ot3$c9q$1@tornado.tornevall.net>
In-Reply-To: <i87ot3$c9q$1@tornado.tornevall.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Message-ID: <4ca78fb1$0$7665$9b4e6d93@newsspool1.arcor-online.net>
Organization: Arcor
NNTP-Posting-Date: 02 Oct 2010 22:01:53 CEST
NNTP-Posting-Host: 94b12029.newsspool1.arcor-online.net
X-Trace: 
 DXC=`[k<]^>i@_@Aa;:RKVJ>LEic==]BZ:afN4Fo<]lROoRA<`=YMgDjhgBgWaom=?WBlBPCY\c7>ejVH1548a>fU1]A]MghZVL:PnF
X-Complaints-To: usenet-abuse@arcor.de
Xref: g2news1.google.com comp.lang.ada:14358
Date: 2010-10-02T22:01:53+02:00
List-Id: <comp.lang.ada>

On 10/2/10 6:52 PM, Jeffrey Carter wrote:

> Ada compilers typically use an underlying hardware floating-point type to implement floating-point type declarations. That is IEEE-754 on many platforms, but not all.

In addition to that, compilers may generate different code for what
only appears to be the "same platform": Using GNAT, if you add options
-mfpmath=sse or -mfpmath=387, the compiler will issue
instructions for a corresponding set of registers, respectively.
(What exactly this means WRT IEEE754 I don't know).


Georg