Article View: comp.arch
Article #12508Re: A theory for Big & Little Endian's origin
From: John Robinson
Date: Fri, 08 Jan 1993 22:10
Date: Fri, 08 Jan 1993 22:10
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1882 bytes
In article <C0JnLq.K2x@uceng.uc.edu> jpenix@uceng.uc.edu (John Penix) writes:
In article <1iig7aINNtc@spim.mti.sgi.com> jackc@vermont.mti.sgi.com (Jack Choquette) writes:
>
>To me it seems like different endianess came about because of the way
>humans like to see things listed out. When humans make a list, they
>like to make and read it top to bottom:
> 0 ******
> 1 ******
> 2 ******
> etc.
rest deleted....
Good - it sounded good, but most of it was speculation, and wrong.
I remember reading (and I'll hunt down the title if you'd like) that
IBM's endedness came from a mechanical memory device that was something
like a wheel.
The consumate reference (IMO) is Danny Cohen's "On Holy Wars and a
Plea for Peace", IEEE Computer v14n10, Oct. 1981, pp 48-54. I think
this floated around the net for a while (RFC?) before it was
published.
For the bytes to be read in in the proper order for
processing the lower order had to come first. They stuck with it due
to their standards of backwards compatibility. I don't recall them
bringing in any linguists :)
Maybe because that was how you sorted on your IBM card sorter ;-)
--
/jr, aka John Robinson Place stamps here
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Path: arc1-ca.pugleaf.net!sparky!uunet!world!ksr!jr From: jr@ksr.com (John Robinson) Newsgroups: comp.arch Subject: Re: A theory for Big & Little Endian's origin Message-ID: <JR.93Jan8171051@gilligan.ksr.com> Date: 8 Jan 93 17:10:51 EST References: <1iig7aINNtc@spim.mti.sgi.com> <C0JnLq.K2x@uceng.uc.edu> Sender: news@ksr.com Organization: Kendall Square Research, Waltham, MA Lines: 34 In-reply-to: jpenix@uceng.uc.edu's message of 8 Jan 93 11:39:25 EST