POV-Ray : Newsgroups : povray.beta-test : Radiosity Status: Giving Up... : Re: Radiosity Status: Giving Up... Server Time
29 Jul 2024 10:17:57 EDT (-0400)
  Re: Radiosity Status: Giving Up...  
From: Thorsten Froehlich
Date: 1 Jan 2009 03:07:21
Message: <495c79b9$1@news.povray.org>
Warp wrote:
> Thorsten Froehlich <tho### [at] trfde> 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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