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=-1.2 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX,
	FROM_STARTS_WITH_NUMS autolearn=no autolearn_force=no version=3.4.4
X-Google-Thread: 103376,c9d5fc258548b22a
X-Google-NewGroupId: yes
X-Google-Attributes: gida07f3367d7,domainid0,public,usenet
X-Google-Language: ENGLISH,UTF8
Path: 
 g2news1.google.com!news1.google.com!news.glorb.com!news2.glorb.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From: "Vinzent Hoefler" <0439279208b62c95f1880bf0f8776eeb@t-domaingrabbing.de>
Newsgroups: comp.lang.ada
Subject: Re: How do I write directly to a memory address?
Date: Wed, 09 Feb 2011 23:25:48 +0100
Message-ID: <op.vqnpxabllzeukk@jellix.jlfencey.com>
References: 
 <67063a5b-f588-45ea-bf22-ca4ba0196ee6@l11g2000yqb.googlegroups.com>
 <4d4ff70e$0$6886$9b4e6d93@newsspool2.arcor-online.net>
 <737a6396-72bd-4a1e-8895-7d50f287960e@d28g2000yqc.googlegroups.com>
 <4d5008a5$0$6879$9b4e6d93@newsspool2.arcor-online.net>
 <eda00084-fcc3-416c-bd3e-8b9e9c1a4b40@o13g2000yql.googlegroups.com>
 <4d5031fe$0$6765$9b4e6d93@newsspool3.arcor-online.net>
 <1f229967-d3cf-42b6-8087-c97ee08652f3@i40g2000yqh.googlegroups.com>
 <4d51169e$0$7657$9b4e6d93@newsspool1.arcor-online.net>
 <db60098c-2569-4efb-aa81-253ba53686b4@y26g2000yqd.googlegroups.com>
 <iis37l$t09$1@tornado.tornevall.net>
 <1bnp0pw1c8r5b$.guxc48qweiwe.dlg@40tude.net>
 <4d51a1c0$0$19486$882e7ee2@usenet-news.net>
 <87411ec5-c197-4143-8ef1-ab9ddb20bcc6@q40g2000prh.googlegroups.com>
 <op.vqlr2a2hlzeukk@jellix.jlfencey.com> <m2mxm5lc9r.fsf@pushface.org>
 <op.vqnff9yflzeukk@jellix.jlfencey.com>
 <iiunid$ee6$1@news.eternal-september.org>
 <op.vqnf6vkjlzeukk@jellix.jlfencey.com>
 <iiv2um$obf$1@news.eternal-september.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed; delsp=yes
Content-Transfer-Encoding: Quoted-Printable
X-Trace: individual.net GMG0W2y7TziQFgCZjU7KtQOC7/a8CTq4AqJB0kgIi9k740S2Lr
Cancel-Lock: sha1:Od+hdVnW39QsuD/q/Ic7BW5EVdw=
User-Agent: Opera Mail/11.01 (Win32)
Xref: g2news1.google.com comp.lang.ada:17180
Date: 2011-02-09T23:25:48+01:00
List-Id: <comp.lang.ada>

J-P. Rosen wrote:

> Le 09/02/2011 19:55, Vinzent Hoefler a =C3=A9crit :
>>> I have worked with computers wher bit 0
>>> corresponded to 2**31.
>>
>> Then they just counted it wrong.
>>
> No. They are just used to write left to right.

Yes, but as you probably know, the number system is - arabic and there
the text-direction is "rtl".

> Note that it's the reason why you can set bit_order in Ada: it allows
> you to write your representation clauses just as the hardware manual
> describes the device, without having to compute 31-N everywhere.
> (representation clauses are normally connected to some hardware need).=


I know. Unfortunately, still some compilers (especially the one we're
using) do not support that. I don't remember the exact error message,
but it was somewhere along the lines of "non-default bit-order not
supported".


Vinzent.

-- =

You know, we're sitting on four million pounds of fuel, one nuclear weap=
on,
and a thing that has 270,000 moving parts built by the lowest bidder.
Makes you feel good, doesn't it?
    --  Rockhound, "Armageddon"