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From: Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject: Re: Short-circuit Logic
Date: Thu, 30 May 2013 19:31:47 -0400
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Xref: csiph.com comp.lang.python:46558

On 30 May 2013 08:29:41 GMT, Steven D'Aprano
<steve+comp.lang.python@pearwood.info> declaimed the following in
gmane.comp.python.general:

> Prior to most compiler and hardware manufacturers standardizing on IEEE 
> 754, there was no real way to treat float's implementation  in a machine 
> independent way. Every machine laid their floats out differently, or used 
> different number of bits. Some even used decimal, and in the case of a 
> couple of Russian machines, trinary. (Although that's going a fair way 
> back.)
>
	Xerox Sigma used an exponent that moved in "16", so a "normalized"
binary mantissa could have up to three leading 0 bits, unlike so many
others that assume a normalized mantissa will have a 1 bit (and then go
one step further and don't store that leading 1 bit <G>).
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
        wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/