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devel / comp.std.c / Re: 128 bit integers

SubjectAuthor
* 128 bit integersfabien carpignano
`* 128 bit integersArnold Ziffel
 `* 128 bit integersKeith Thompson
  `- 128 bit integersArnold Ziffel

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Re: 128 bit integers

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Subject: Re: 128 bit integers
From: fade@fade.airforce (fabien carpignano)
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 by: fabien carpignano - Wed, 5 Apr 2023 20:30 UTC

Le jeudi 28 juillet 2005 à 15:10:11 UTC+2, jacob navia a écrit :
> A customer has asked me to add 128 bit integers to the 64 bit
> version of my compiler system (lcc-win64).
> After developing the assembly procedures, I have several
> questions:
> 1) How should I name this stuff?
> long long long ???
> __int128 ?
> int128 ?
> 2) How would this integers get printed with printf?
> "%llld" ?
> "%I128d" ?
> 3) Should I supply definitions for it in inttypes.h, and in
> stdint.h ?
> 4) What other implications can this new type have? I would have
> loved to use long long for this, long for 64 bit, int for 32
> bits, etc. But this is not possible for compatibility reasons.
> There is too much software there that assumes long long is 64 bits,
> not 128.
> jacob
> http://www.cs.virginia.edu:/~lcc-win32
x64-128 pour inltel tu la deja 12 et 13 genertion mai il faux changet larchitecture paur amd x64_128

Re: 128 bit integers

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From: arnold@hooterville.invalid (Arnold Ziffel)
Newsgroups: comp.std.c
Subject: Re: 128 bit integers
Date: Fri, 7 Apr 2023 01:12:48 -0000 (UTC)
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 by: Arnold Ziffel - Fri, 7 Apr 2023 01:12 UTC

fabien carpignano <fade@fade.airforce> wrote:

> x64-128 pour inltel tu la deja 12 et 13 genertion mai il faux changet
> larchitecture paur amd x64_128

Could you please write in English?

--
You cannot tame a tiger by pulling but one of his teeth.

Re: 128 bit integers

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Subject: Re: 128 bit integers
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 by: Keith Thompson - Fri, 7 Apr 2023 04:59 UTC

arnold@hooterville.invalid (Arnold Ziffel) writes:
> fabien carpignano <fade@fade.airforce> wrote:
>
>> x64-128 pour inltel tu la deja 12 et 13 genertion mai il faux changet
>> larchitecture paur amd x64_128
>
> Could you please write in English?

When replying to an article from 18 years ago?

--
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
Working, but not speaking, for XCOM Labs
void Void(void) { Void(); } /* The recursive call of the void */

Re: 128 bit integers

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From: arnold@hooterville.invalid (Arnold Ziffel)
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Subject: Re: 128 bit integers
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 by: Arnold Ziffel - Sat, 8 Apr 2023 00:36 UTC

Keith Thompson <Keith.S.Thompson+u@gmail.com> wrote:

>>> x64-128 pour inltel tu la deja 12 et 13 genertion mai il faux changet
>>> larchitecture paur amd x64_128
>>
>> Could you please write in English?
>
> When replying to an article from 18 years ago?

Even then ;)

--
A complex system that works is invariably found to have evolved from a
more simple system that worked.

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