piclist 2001\03\19\021755a >
Thread: Microship 24bit Floating point format question
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face BY : Nikolai Golovchenko email (remove spam text)



Zero is a special case. It is encoded as a zero biased exponent (eb=0):

00xxxx     (xxxx can have any value)

eb=0
e=-127

As your number gets closer and closer to zero, the exponent is getting
smaller and smaller until it reaches e=-127 (or eb=0), which is zero.

There is another special case, which is ignored in Microchip's
routines (according to AN575) when eb=255, which means infinity.

So, the range for exponent can be either -126..128 (ignoring Inf) or
-126..127 (using Inf). But MPLAB displays the case of eb=255 as zero
(at least in version 5.00).

Nikolai

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Subj: Microship 24bit Floating point format question

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<1491357560.20010319091526@yahoo.com> 7bit

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