480FC70E
ICLASS:     CMPXCHG16B
CATEGORY:   SEMAPHORE
EXTENSION:  LONGMODE
IFORM:      CMPXCHG16B_MEMdq
ISA_SET:    CMPXCHG16B
ATTRIBUTES: LOCKABLE REQUIRES_ALIGNMENT 
SHORT:      cmpxchg16b xmmword ptr [rsi]