3-634 Vol. 2A MOVHPD—Move High Packed Double-Precision Floating-Point Value
INSTRUCTION SET REFERENCE, A-M
If CPUID.01H:EDX.SSE2[bit 26] = 0.
If the LOCK prefix is used.
#AC(0) If alignment checking is enabled and an unaligned memory
reference is made while the current privilege level is 3.