movapd xmm0,[0x10000]
      movapd xmm1,[0x10010]
      mov ecx,1000
      @@:
      add al,ah
      add ah,al
      add al,ah
      add ah,al
      add al,ah
      add ah,al
      add al,ah
      add ah,al
      sub al,ah
      sub ah,al
      sub al,ah
      sub ah,al
      sub al,ah
      sub ah,al
      sub al,ah
      sub ah,al
      ;paddb xmm0,xmm1
      ;psubb xmm1,xmm0
      dec ecx
      test ecx,ecx
      ja @b