Warp wrote:
> Thorsten Froehlich <tho### [at] trfde> wrote:
>> Warp wrote:
>>> clipka <nomail@nomail> wrote:
>>>> Duh. Any mention of such things as sin, cos, log or such? I don't see any.
>>>   I don't see them either, eg. here:
>>>
>>> http://en.wikipedia.org/wiki/X86_instruction_listings#SIMD_instructions
> 
>> Why do you *expect* to see them?
> 
>   Because you said that, according to Intel, x87 is obsolete and all code
> is recommended to use SSE instead. If that's true, then it would be a
> rather large setback for programs requiring trigonometric and logarithmic
> calculations, as they would have to be made in software.

Clearly you do not know much about floating-point units in modern processors 
then. You actually want to do it is software because that is more efficient 
(see my other post). x87 is pretty much the last architecture to still have 
microcode ops for more than sqrt.

	Thorsten

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