Specifications

Intel
®
64 and IA-32 Architectures Software Developer’s Manual Documentation Changes 95
Documentation Changes
MOVHLPS— Move Packed Single-Precision Floating-Point Values High to
Low
Instruction Operand Encoding
...
MOVHPD—Move High Packed Double-Precision Floating-Point Value
Instruction Operand Encoding
...
Opcode Instruction Op/
En
64-Bit
Mode
Compat/
Leg Mode
Description
0F 12 /r MOVHLPS xmm1,
xmm2
A Valid Valid Move two packed single-
precision floating-point
values from high quadword
of xmm2 to low quadword
of xmm1.
Op/En Operand 1 Operand 2 Operand 3 Operand 4
A ModRM:reg (w) ModRM:reg (r) NA NA
Opcode Instruction Op/
En
64-Bit
Mode
Compat/
Leg Mode
Description
66 0F 16 /r MOVHPD xmm,
m64
AValid Valid Move double-precision
floating-point value from
m64 to high quadword of
xmm.
66 0F 17 /r MOVHPD m64,
xmm
BValid Valid Move double-precision
floating-point value from
high quadword of xmm to
m64.
Op/En Operand 1 Operand 2 Operand 3 Operand 4
A ModRM:reg (r, w) ModRM:r/m (r) NA NA
B ModRM:r/m (w) ModRM:reg (r) NA NA