Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.python > #46986

Re: How to get an integer from a sequence of bytes

Path csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.xs4all.nl!newsfeed4.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path <python-python-list@m.gmane.org>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.007
X-Spam-Evidence '*H*': 0.99; '*S*': 0.00; 'argument': 0.05; 'desired.': 0.07; '32-bit': 0.09; 'chunk': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'subject:How': 0.10; 'bits.': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'word),': 0.16; 'index': 0.16; 'memory': 0.22; '+0000': 0.22; 'byte': 0.24; 'bytes': 0.24; 'interpret': 0.24; 'url:home': 0.24; 'header:X-Complaints-To:1': 0.27; 'instruction': 0.29; 'you?': 0.31; 'older': 0.33; 'subject:from': 0.34; 'could': 0.34; 'but': 0.35; 'sequence': 0.36; 'next': 0.36; 'charset:us-ascii': 0.36; 'received:76': 0.38; 'to:addr:python-list': 0.38; "couldn't": 0.39; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'how': 0.40; 'read': 0.60; 'address': 0.63; 'subject:get': 0.81; '(word': 0.84; 'xerox': 0.84; 'edwards': 0.91; '2013': 0.98
X-Injected-Via-Gmane http://gmane.org/
To python-list@python.org
From Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject Re: How to get an integer from a sequence of bytes
Date Tue, 04 Jun 2013 20:34:48 -0400
Organization > Bestiaria Support Staff <
References <knvrhf$n5n$1@news.albasani.net> <mailman.2253.1369668622.3114.python-list@python.org> <ko85jp$vn3$1@news.albasani.net> <mailman.2447.1369941788.3114.python-list@python.org> <kog67o$pt2$1@news.albasani.net> <mailman.2571.1370224134.3114.python-list@python.org> <koi9ch$3ps$1@reader1.panix.com> <mailman.2611.1370299311.3114.python-list@python.org> <kokqma$574$1@reader1.panix.com>
Mime-Version 1.0
Content-Type text/plain; charset=us-ascii
Content-Transfer-Encoding 7bit
X-Gmane-NNTP-Posting-Host adsl-76-249-31-163.dsl.klmzmi.sbcglobal.net
X-Newsreader Forte Agent 3.3/32.846
X-No-Archive YES
X-BeenThere python-list@python.org
X-Mailman-Version 2.1.15
Precedence list
List-Id General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe <http://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive <http://mail.python.org/pipermail/python-list/>
List-Post <mailto:python-list@python.org>
List-Help <mailto:python-list-request@python.org?subject=help>
List-Subscribe <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups comp.lang.python
Message-ID <mailman.2694.1370392497.3114.python-list@python.org> (permalink)
Lines 25
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1370392497 news.xs4all.nl 15980 [2001:888:2000:d::a6]:60148
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:46986

Show key headers only | View raw


On Tue, 4 Jun 2013 13:39:22 +0000 (UTC), Grant Edwards
<invalid@invalid.invalid> declaimed the following in
gmane.comp.python.general:

> 
> But you couldn't address individual 6-bit "hextets" in memory could
> you?  My recollection is that incrementing a memory address got you
> the next 60-bit chunk -- that means that by the older terminology a
> "byte" was 60 bits.  A "character" was 6 bits, and a single register
> or memory location could hold 6 characters.
>

	How would you interpret the Xerox Sigma instruction set then...

	It had LW (load word), LH (load halfword), LB (load byte)
instructions... BUT the address argument was always considered as a
32-bit word (word 1 was 32-bits after word 0).

	To actually read a sequence of bytes required using LB with an
auxiliary index register, which identified which byte in the word was
desired.
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
        wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

Back to comp.lang.python | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

How to get an integer from a sequence of bytes Mok-Kong Shen <mok-kong.shen@t-online.de> - 2013-05-27 16:45 +0200
  Re: How to get an integer from a sequence of bytes Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-05-27 15:00 +0000
    RE: How to get an integer from a sequence of bytes Carlos Nepomuceno <carlosnepomuceno@outlook.com> - 2013-05-28 03:37 +0300
  Re: How to get an integer from a sequence of bytes Ned Batchelder <ned@nedbatchelder.com> - 2013-05-27 11:30 -0400
    Re: How to get an integer from a sequence of bytes Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-05-28 00:31 +0000
      Re: How to get an integer from a sequence of bytes Dave Angel <davea@davea.name> - 2013-05-27 20:41 -0400
    Re: How to get an integer from a sequence of bytes Mok-Kong Shen <mok-kong.shen@t-online.de> - 2013-05-30 20:26 +0200
      Re: How to get an integer from a sequence of bytes Ian Kelly <ian.g.kelly@gmail.com> - 2013-05-30 12:42 -0600
        Re: How to get an integer from a sequence of bytes jmfauth <wxjmfauth@gmail.com> - 2013-05-30 11:53 -0700
      Re: How to get an integer from a sequence of bytes Ned Batchelder <ned@nedbatchelder.com> - 2013-05-30 15:22 -0400
        Re: How to get an integer from a sequence of bytes Mok-Kong Shen <mok-kong.shen@t-online.de> - 2013-06-02 21:25 +0200
          Re: How to get an integer from a sequence of bytes Chris Angelico <rosuav@gmail.com> - 2013-06-03 05:54 +1000
          Re: How to get an integer from a sequence of bytes Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-06-02 21:48 -0400
            Re: How to get an integer from a sequence of bytes Grant Edwards <invalid@invalid.invalid> - 2013-06-03 14:31 +0000
              Re: How to get an integer from a sequence of bytes Dave Angel <d@davea.name> - 2013-06-03 18:07 -0400
                Re: How to get an integer from a sequence of bytes Grant Edwards <invalid@invalid.invalid> - 2013-06-03 22:34 +0000
              Re: How to get an integer from a sequence of bytes Dan Stromberg <drsalists@gmail.com> - 2013-06-03 15:41 -0700
                Re: How to get an integer from a sequence of bytes Grant Edwards <invalid@invalid.invalid> - 2013-06-04 13:39 +0000
                Re: How to get an integer from a sequence of bytes Joshua Landau <joshua.landau.ws@gmail.com> - 2013-06-04 20:51 +0100
                Re: How to get an integer from a sequence of bytes Chris Angelico <rosuav@gmail.com> - 2013-06-05 07:49 +1000
                Re: How to get an integer from a sequence of bytes Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-06-04 20:34 -0400
                Re: How to get an integer from a sequence of bytes Tim Roberts <timr@probo.com> - 2013-06-04 22:11 -0700
                Re: How to get an integer from a sequence of bytes Fábio Santos <fabiosantosart@gmail.com> - 2013-06-12 15:00 +0100
                Re: How to get an integer from a sequence of bytes Grant Edwards <invalid@invalid.invalid> - 2013-06-12 14:42 +0000
              RE: How to get an integer from a sequence of bytes Carlos Nepomuceno <carlosnepomuceno@outlook.com> - 2013-06-04 02:18 +0300
                Re: How to get an integer from a sequence of bytes Grant Edwards <invalid@invalid.invalid> - 2013-06-04 13:42 +0000
                RE: How to get an integer from a sequence of bytes Carlos Nepomuceno <carlosnepomuceno@outlook.com> - 2013-06-04 16:58 +0300
              Re: How to get an integer from a sequence of bytes Dan Stromberg <drsalists@gmail.com> - 2013-06-03 16:47 -0700
  Re: How to get an integer from a sequence of bytes Grant Edwards <invalid@invalid.invalid> - 2013-05-28 16:04 +0000

csiph-web