test/zerobyte.asm

   1         bits 64
   2
   3         mov eax,bar-foo
   4
   5 foo:
   6         add al,r10b
   7 bar:
   8
   9         lldt ax
  10         lldt r8w
  11         ltr [rax]
  12         sldt eax
  13         sldt r8d
  14         str eax
  15         str rax
  16         str r8d
  17         str r8
  18         verr ax
  19         verr r8w
  20         verw ax
  21         verw r8w
  22
  23         fmaddps xmm0,xmm0,xmm0,xmm0
  24         fmaddps xmm8,xmm8,xmm8,xmm8