On 15.12.2016 22:04, Peter Zijlstra wrote: > On Thu, Dec 15, 2016 at 09:43:04PM +0100, Jason A. Donenfeld wrote: >> On Thu, Dec 15, 2016 at 9:31 PM, Hannes Frederic Sowa >> <han...@stressinduktion.org> wrote: >>> ARM64 and x86-64 have memory operations that are not vector operations >>> that operate on 128 bit memory. >> >> Fair enough. imull I guess. > > imull is into rdx:rax, not memory. I suspect he's talking about > cmpxchg16b.
Exactly and I think I saw a ll/sc 128 bit on armv8 to atomically manipulate linked lists. Bye, Hannes
