I'm decoding a binary data file and one thing I'm having
trouble with is a 24 bit/3 byte floating point number.
I've put the whole file into a array split every byte.
I've been trying pack/unpack but just can't seem to get
it to work. And maybe pack/unpack is not the right
way to go ?
Here's what the 3 bytes look like
Each numbers 3 bytes/24 bits, where the
least sig. byte is first, and then most sig. byte last,
at least the nibble order is ok :).
|7 0| |15 8| |23 16|
|_______|_______| |_______|_______| |_______|_______|
|M|M|M|M|M|M|M|M| |E|E|M|M|M|M|M|M| |S|E|E|E|E|E|E|E|
Least Sig. Byte Most Sig. Byte
Sign 1 bit
Exp 9 bits
Mantissa 14 bits
00 60 c0 = -3.5
00 00 40 = 2.0
00 40 40 = 3.0
00 60 40 = 3.5
TIA
-pete
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