x86-64-asm: Implement cmpxchg16b

2016-12-15 17:47:10 +01:00
parent ca8c1cd643
commit 9e0af6d2b5
2 changed files with 6 additions and 0 deletions
@@ -535,6 +535,9 @@ cmpxchgw %ax, 0x1000
 cmpxchgl %eax, 0x1000
 invlpg 0x1000
 cmpxchg8b 0x1002
+#ifdef __x86_64__
+cmpxchg16b (%rax)
+#endif

 fcmovb %st(5), %st
 fcmove %st(5), %st