Warp wrote:
> clipka <nomail@nomail> wrote:
>> "x87 arithmetic is deprecated in 64-bit mode" - but not because it would
>> be inferior, but simply because "the extent to which operating systems will
>> continue to support x87 in the future is unknown."
> 
>   That's a really odd statement. I didn't know that the FPU or the x87
> instruction set required OS support. (Can the OS even force programs to
> not use x87 instructions if it wanted to?

Yes, by not saving and restoring the x87 "register" stack when switching 
threads or making operating system calls. You need OS support for that.

	Thorsten

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