how to convert 3 byte to float
Mario M. Mueller
news.mueller at arcor.de
Sat Dec 8 06:47:49 EST 2007
John Machin wrote:
> On Dec 8, 9:34 pm, "Mario M. Mueller" <news.muel... at arcor.de> wrote:
>> Hi,
>>
>> I have a binary file containing 3 byte float values (big endian). How can
>> I read them into python? The struct module does not work, since it
>> expects 4 byte floats.
>>
>> Any hints?
>>
>> Mario
>
> What does a three-byte float look like? To write an unpack routine
> from scratch, one would need to know position & size of the mantissa
> and exponent, position of sign bit, how infinities, NaN, -0 etc are
> represented (if at all) ...
Unfortunatly I don't know anything in detail about these floats (yet). Any
documentation about it seems to be lost... :( Maybe I can can get some
working C code in the next days.
Mario
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