Does any one recognize this binary data storage format

Grant Edwards grante at visi.com
Tue Aug 9 17:50:06 EDT 2005


On 2005-08-09, Scott David Daniels <Scott.Daniels at Acm.Org> wrote:
> Grant Edwards wrote:
>>>Ex #1)   333-3333
>>>Hex On disk: 00 00 00 80 6a 6e 49 41
>>>
>>>Ex #2) 666-6666
>>>Hex On disk: 00 00 00 80 6a 6e 59 41
>> 
>> So there's only a 1-bit different between the on-disk
>> representation of 333-3333 and 666-6666.
>> 
>> That sounds pretty unlikely.  Are you 100% sure you're looking
>> at the correct bytes?
>
> Perhaps the one bit is an exponent -- some kind of floating point
> based format?  That matches the doubling of all digits.

That would just be sick.  I can't imagine anybody on an 8-bit
CPU using FP for a phone number.

-- 
Grant




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