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Byte format of "single" data type

Posted on 2001-08-10
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Last Modified: 2010-04-06
Can anyone explain the byte format (4 bytes) of the Delphi "single" floating point data type.
I have a Delphi app that writes "single" data type values to a file and I would like to read the data file using a non-Delphi app.
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Question by:zebada
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AvonWyss earned 400 total points
ID: 6371951
It's the normal IEEE standard single data type.
http://www.psc.edu/general/software/packages/ieee/ieee.html
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by:ITugay
ID: 6371995
Hi zebada,

It's really standard type. E.g. it used in 80287 coprocessor.
31 bit - Sign
30...23 Exponent
22...0 Fracation

If you are going to load it to application that  builded with compiller supported "Single type", then just load it directly to variable.

-----
Igor
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by:zebada
ID: 6372026
Thanks to all,

AvonWyss was first. I should've known but I was using "Hex Editor" with the byte order accidentally set to Motorola instead of Intel. So I was seeing really strange numbers when it was interpreting the 4-byte single values. I concluded (incorrectly) that Delphi was using non-standard floating point formats. DOH!

Cheers
Paul
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