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From: mitchalsup@aol.com (MitchAlsup1)
Newsgroups: comp.arch
Subject: Re: Making Lemonade (Floating-point format changes)
Date: Tue, 21 May 2024 17:17:10 +0000
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BGB wrote:

> But OTOH, if 1.0+2.0 gives 2.999999, that is, not good enough, so there
> 
> is a lower limit here.

1.0 has a fraction of 0
2.0 has a fraction of 0
1.0+2.0 has a fraction with a single HOB set.
all 3 above examples have the hidden bit set.

Any implementation purporting to be IEEE 754 better not give anything
other 
than 3.0 !!

Bad example. Even IBM and CRAY arithmetics, with all their problems,
were
not that bad.