"glen herrmannsfeldt" <gah@[EMAIL PROTECTED]
> wrote in message
news:J6qdnbufBcshxVbenZ2dnUVZ_sSdnZ2d@[EMAIL PROTECTED]
> John W. Kennedy wrote:
> > In order to make any sense of your argument, I can only assume that
you
> > do not know what the words "relevant" and "mantissa" mean. Kindly look
> > them up.
>
> Mantissa: The fractional part of a logarithm.
Also part of an FPN.
> Until a log instruction is implemented, you likely won't find the word
> mantissa in the Principles of Operations manual for any IBM processor.
Different manufacturers call the fields of an FPN different things.
You'll find "mantissa" used in any computer science text to
describe part of an FPN.
e.g. 1, Compuers & Programming, Hannula, 1974.
"The sign, the mantissa, and the characteristic of a floating-point
number are all stored in the same cell."
The diagrams show "mantissa" occupying bits 8 thru 31 and 8 thru 63.
e.g. 2, Rudd, Assembler Language Programming & the IBM 360 & 370, 1976.
Both books published in USA.
e.g. 3, Clone hardware ref manual:
For AE, AD, ADR, ADR: " If they [exponents] do not agree,
the mantissa with the smaller exponent operand is ****fted right."
These were the first 3 books that I picked up.
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