3-433
INSTRUCTION SET REFERENCE
MOVQMove 64 Bits
Description
This instruction copies quadword from the source operand (second operand) to the destination
operand (first operand) (refer to Figure 3-47). A source or destination operand can be either an
MMX technology register or a memory location; however, data cannot be transferred from
one memory location to another memory location. Data can be transferred from one MMX
technology register to another MMX technology register.
Operation
DEST
<
SRC;
Flags Affected
None.
Opcode
Instruction
Description
0F 6F /r
MOVQ mm, mm/m64Move quadword from mm/m64 to mm.
0F 7F /r
MOVQ mm/m64, mmMove quadword from mm to mm/m64.
Figure 3-47. Operation of the MOVQ Instructions
MOVQ mm, m64
6348473231
mm
m64
150
16150
b7b6b5b4
b3b2b1b0
b7b6
b5b4
b3b2
b1
W
W
W
W
b0
3006013
N+1
N+2
N+3
N+0