On 2005-08-10, John Machin <[EMAIL PROTECTED]> wrote:
>>>>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.
>> >>> double_binary_lehex_to_double('000000806a6e4941')
>> 3333333.0
>> >>> double_binary_lehex_to_double('000000806a6e5941')
>> 6666666.0
>> >>> double_binary_lehex_to_double('0000108777F9Fc41')
>> 7777777777.0
>>
>> ;-)
>
> Well done, Scott & Bengt!!
> I've just verified that this works with all 12 corrected examples posted
> by the OP.
>
> Grant, MS-DOS implies 16 bits at least;
You're right. For some reason I was thinking you had said CP/M.
> and yes there was an FPU (the 8087).
I never met an MS-DOS box that had an 8087 (though I did write
firmware for an 8086+8087 fire-control computer once upon a
time).
> And yes there are a lot of sick people who store things as
> numbers (whether integer or FP) when the only arithmetic
> operations that can be applied to them stuff them up mightily
> (like losing leading zeroes off post-codes, having NEGATIVE
> tax file numbers, etc) and it's still happening on the best
> OSes and 64-bit CPUS. Welcome to the real world :-)
I've been in the real world for a long time, and the dumb
things people (including myself) do still surprise me.
--
Grant Edwards grante Yow! Hello, GORRY-O!! I'm
at a GENIUS from HARVARD!!
visi.com
--
http://mail.python.org/mailman/listinfo/python-list
