Warp wrote:
> Thorsten Froehlich <tho### [at] trf de> wrote:
>> In essence x86 is the only architecture where more than sqrt is still
>> supported in microcode hardware. Doing this in software is much more
>> desirable and efficient.
>
> So they really are making the FPU deliberately less efficient than
> it could be?
>
> How do you calculate the sine and cosine of a 64-bit floating point
> value in 17-137 clock cycles in software?
Look in the gcc or icc standard library implementations how they do it. Or
compile and disassemble the compiled code.
Thorsten
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