Re: Ideas for reducing memory copying and zeroing times
Linus Torvalds (torvalds@cs.helsinki.fi)
Thu, 18 Apr 1996 16:08:46 +0300 (EET DST)
> I haven't found any other way to make the Pentium write to main memory
> in 64-bit chunks without first loading into cache. If someone finds a
> more conventional way, it would surely be preferable to using the
> FPU. I'm not aware of anyone who has found such a way, though.
Umm.. The cmpxchg8b instruction probably does it, but I agree - it's even
uglier than using the fp unit ;-)
Linus