x86 Instruction Set Reference
MOVHLPS
Move Packed Single-Precision Floating-Point Values High to Low
| Opcode | Mnemonic | Description |
|---|---|---|
0F 12 /r |
MOVHLPS xmm1, xmm2 |
Move two packed single-precision floating-point values from high quadword of xmm2 to low quadword of xmm1. |
| Description |
|---|
|
Moves two packed single-precision floating-point values from the high quadword of the source operand (second operand) to the low quadword of the destination operand (first operand). The high quadword of the destination operand is left unchanged. |
| Operation |
|---|
Destination[0..63] = Source[64..127]; //Destination[64..127] unchanged |
| SIMD Floating-Point Exceptions |
|---|
| None. |
| Protected Mode Exceptions | ||||
|---|---|---|---|---|
|
| Real-Address Mode Exceptions |
|---|
| Same exceptions as in Protected Mode. |
| Virtual-8086 Mode Exceptions |
|---|
| Same exceptions as in Protected Mode. |
| Instruction | Latency | Throughput | Execution Unit |
|---|---|---|---|
CPUID | 0F3n/0F2n | 0F3n/0F2n | 0F2n |
MOVHLPS xmm, xmm | 6/6 | 2/2 | MMX_SHFT |