Does any one recognize this binary data storage format

Scott David Daniels Scott.Daniels at Acm.Org
Tue Aug 9 23:33:43 CEST 2005


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.

--Scott David Daniels
Scott.Daniels at Acm.Org



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