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Warp nous apporta ses lumieres en ce 01/08/2006 17:31:
> Alain <ele### [at] netscape net> wrote:
>> both 32 and 64 bits CPUs use 64 bits FPUs
>
> Actually Intel (and compatible) processors use 80-bit floating point
> numbers internally. I don't know why, but they just do.
>
OK then. So, as long as your results STAY in the FPU and you keep on reusing
them, you can keep an improved acuracy. But, as soon as you need to put your
results anywhere else, you fall back to 64 bits acuracy. Would be good if you
could preserve those extra 16 bits. This would open up double and half precision
FP numbers.
--
Alain
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SHOPPING MATH
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A woman will pay $10 for a $20 item that she doesn't need.
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