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Re: 64-bit bytes

From Robert Wessel <robertwessel2@yahoo.com>
Newsgroups comp.programming
Subject Re: 64-bit bytes
Message-ID <pmf8bahs3hc93cegc1vcpmaf6sumo70vqe@4ax.com> (permalink)
References (7 earlier) <RGOsw.496550$lM6.489669@fx22.am4> <y%Osw.742376$MH.437411@fx12.am4> <gQPsw.528585$gZ6.162597@fx40.am4> <mHQsw.502065$fX6.163191@fx26.am4> <D8Rsw.561175$812.167923@fx20.am4>
Organization Forte - www.forteinc.com
Date 2015-01-12 15:43 -0600

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On Mon, 12 Jan 2015 14:48:02 +0000, Richard Heathfield
<invalid@see.sig.invalid> wrote:

>BartC wrote:
>
>> On 12/01/2015 13:18, Richard Heathfield wrote:
>>> BartC wrote:
>>>> On 12/01/2015 11:59, Richard Heathfield wrote:
>> 
>>>>> and (b) hampers our ability to describe alternative computer
>>>>> architectures. What advantage does this restriction give us that
>>>>> compensates for the loss of flexibility?
>>>>
>>>> We already have 'word' for that,
>>>
>>> For a great many people, 'word' means exactly 16 bits (because that's how
>>> Windows uses the term). So no, we don't already have 'word' for that.
>> 
>> Huh? Now you're using the same argument for 'word' as I'm using for
>> 'byte', and with much less justification.
>
>Actually, it's with the same justification - i.e. not very much. It is 
>indeed a weak argument, QED.
>
>> For those who are technical, 'word' generally relates to the bit-width
>> of a particular machine, and know it might currently be 8, 16, 32 or 64
>> bits, that in the past it could have been anything, and in the future
>> could also vary. It certainly isn't taken to mean exactly 16-bits
>> outside of a specific context.
>> 
>> For the general public, 'word' means just means a word of a natural
>> language.
>
>And where does MS fit into that scheme? For them, 'word' means 16 bits. So 
>are MS people technical or not?


It's not like MS is alone with illogically sized "words".  It's
happened many times at the ISA level, where the natural size of a
"word" has changed over time, but the names were not changed. Consider
DEC's PDP-11 /-> VAX -> Alpha path.  "Words" were the natural (16 bit)
size on the PDP-11s, but they chose to retain that nomanclature on the
(32-bit) VAX and (64-bit) Alpha.  So the natural size object on the
Alpha was a quadword.  IBM, having started with 32-bit "fullwords" on
S/360 didn't get bitten by that issue until the 64-bit Z's, but again,
those still have 32 bit fullwords.  Intel and AMD, of course, have
done the same thing with 16/32/64-bit versions of x86, and the same is
true of of numerous other systems.

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Thread

64-bit bytes fir <profesor.fir@gmail.com> - 2015-01-05 01:38 -0800
  Re: 64-bit bytes robin.vowels@gmail.com - 2015-01-08 00:46 -0800
    Re: 64-bit bytes fir <profesor.fir@gmail.com> - 2015-01-08 00:53 -0800
      Re: 64-bit bytes robin.vowels@gmail.com - 2015-01-11 15:46 -0800
        Re: 64-bit bytes Richard Heathfield <invalid@see.sig.invalid> - 2015-01-12 00:32 +0000
          Re: 64-bit bytes BartC <bc@freeuk.com> - 2015-01-12 01:35 +0000
            Re: 64-bit bytes Richard Heathfield <invalid@see.sig.invalid> - 2015-01-12 09:07 +0000
              Re: 64-bit bytes BartC <bc@freeuk.com> - 2015-01-12 11:43 +0000
                Re: 64-bit bytes Richard Heathfield <invalid@see.sig.invalid> - 2015-01-12 11:59 +0000
                Re: 64-bit bytes BartC <bc@freeuk.com> - 2015-01-12 12:21 +0000
                Re: 64-bit bytes Mark Carroll <mtbc@bcs.org> - 2015-01-12 12:36 +0000
                Re: 64-bit bytes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-01-12 14:15 +0000
                Re: 64-bit bytes BartC <bc@freeuk.com> - 2015-01-12 14:34 +0000
                Re: 64-bit bytes "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2015-01-12 16:35 +0100
                Re: 64-bit bytes BartC <bc@freeuk.com> - 2015-01-12 17:42 +0000
                Re: 64-bit bytes "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2015-01-12 19:11 +0100
                Re: 64-bit bytes BartC <bc@freeuk.com> - 2015-01-12 19:18 +0000
                Re: 64-bit bytes "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2015-01-12 21:34 +0100
                Re: 64-bit bytes BartC <bc@freeuk.com> - 2015-01-12 22:01 +0000
                Re: 64-bit bytes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-01-13 00:51 +0000
                Re: 64-bit bytes Richard Heathfield <invalid@see.sig.invalid> - 2015-01-12 13:18 +0000
                Re: 64-bit bytes BartC <bc@freeuk.com> - 2015-01-12 14:16 +0000
                Re: 64-bit bytes Richard Heathfield <invalid@see.sig.invalid> - 2015-01-12 14:48 +0000
                Re: 64-bit bytes BartC <bc@freeuk.com> - 2015-01-12 15:05 +0000
                Re: 64-bit bytes Robert Wessel <robertwessel2@yahoo.com> - 2015-01-12 15:43 -0600
              Re: 64-bit bytes Kaz Kylheku <kaz@kylheku.com> - 2015-01-12 21:05 +0000
                Re: 64-bit bytes Richard Heathfield <invalid@see.sig.invalid> - 2015-01-12 22:12 +0000
            Re: 64-bit bytes "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2015-01-12 10:12 +0100
          Re: 64-bit bytes robin.vowels@gmail.com - 2015-01-11 20:56 -0800
            Re: 64-bit bytes Richard Heathfield <invalid@see.sig.invalid> - 2015-01-12 09:19 +0000
              Re: 64-bit bytes robin.vowels@gmail.com - 2015-01-12 06:22 -0800
                Re: 64-bit bytes Richard Heathfield <invalid@see.sig.invalid> - 2015-01-12 14:51 +0000
                Re: 64-bit bytes robin.vowels@gmail.com - 2015-01-12 15:46 -0800
                Re: 64-bit bytes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-01-13 01:16 +0000
                Re: 64-bit bytes Richard Heathfield <invalid@see.sig.invalid> - 2015-01-13 01:53 +0000
                Re: 64-bit bytes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-01-13 13:28 +0000
                Re: 64-bit bytes Richard Heathfield <invalid@see.sig.invalid> - 2015-01-13 13:57 +0000
                Re: 64-bit bytes "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2015-01-13 15:32 +0100
                Re: 64-bit bytes fir <profesor.fir@gmail.com> - 2015-01-13 06:33 -0800
                Re: 64-bit bytes BartC <bc@freeuk.com> - 2015-01-13 16:41 +0000
                Re: 64-bit bytes fir <profesor.fir@gmail.com> - 2015-01-13 15:25 -0800
                Re: 64-bit bytes BartC <bc@freeuk.com> - 2015-01-13 23:49 +0000
                Re: 64-bit bytes fir <profesor.fir@gmail.com> - 2015-01-13 23:57 -0800

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