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MOVAPD
MOVAPD - Move Aligned Packed Double-Precision Floating-Point Values
| Opcode/ Instruction | Op/En | 64/32 bit Mode Support | CPUID Feature Flag | Description |
| 66 0F 28 /r MOVAPD xmm1, xmm2/m128 | RM | V/V | SSE2 | Move aligned packed double-precision floating- point values from xmm2/mem to xmm1. |
| 66 0F 29 /r MOVAPD xmm2/m128, xmm1 | MR | V/V | SSE2 | Move aligned packed double-precision floating- point values from xmm1 to xmm2/mem. |
| VEX.128.66.0F.WIG 28 /r VMOVAPD xmm1, xmm2/m128 | RM | V/V | AVX | Move aligned packed double-precision floating- point values from xmm2/mem to xmm1. |
| VEX.128.66.0F.WIG 29 /r VMOVAPD xmm2/m128, xmm1 | MR | V/V | AVX | Move aligned packed double-precision floating- point values from xmm1 to xmm2/mem. |
| VEX.256.66.0F.WIG 28 /r VMOVAPD ymm1, ymm2/m256 | RM | V/V | AVX | Move aligned packed double-precision floating- point values from ymm2/mem to ymm1. |
| VEX.256.66.0F.WIG 29 /r VMOVAPD ymm2/m256, ymm1 | MR | V/V | AVX | Move aligned packed double-precision floating- point values from ymm1 to ymm2/mem. |
| EVEX.128.66.0F.W1 28 /r VMOVAPD xmm1 {k1}{z}, xmm2/m128 | AVX512VL AVX512F | Move aligned packed double-precision floating- point values from xmm2/m128 to xmm1 using writemask k1. | ||
| EVEX.256.66.0F.W1 28 /r VMOVAPD ymm1 {k1}{z}, ymm2/m256 | AVX512VL AVX512F | Move aligned packed double-precision floating- point values from ymm2/m256 to ymm1 using writemask k1. | ||
| EVEX.512.66.0F.W1 28 /r VMOVAPD zmm1 {k1}{z}, zmm2/m512 | AVX512F | Move aligned packed double-precision floating- point values from zmm2/m512 to zmm1 using writemask k1. | ||
| EVEX.128.66.0F.W1 29 /r VMOVAPD xmm2/m128 {k1}{z}, xmm1 | FVM-MR | V/V | AVX512VL AVX512F | Move aligned packed double-precision floating- point values from xmm1 to xmm2/m128 using writemask k1. |
| EVEX.256.66.0F.W1 29 /r VMOVAPD ymm2/m256 {k1}{z}, ymm1 | FVM-MR | V/V | AVX512VL AVX512F | Move aligned packed double-precision floating- point values from ymm1 to ymm2/m256 using writemask k1. |
| EVEX.512.66.0F.W1 29 /r VMOVAPD zmm2/m512 {k1}{z}, zmm1 | FVM-MR | V/V | AVX512F | Move aligned packed double-precision floating- point values from zmm1 to zmm2/m512 using writemask k1. |
| Op/En | Operand 1 | Operand 2 | Operand 3 | Operand 4 |
| RM | ModRM:reg (w) | ModRM:r/m (r) | NA | NA |
| MR | ModRM:r/m (w) | ModRM:reg (r) | NA | NA |
| FVM-RM | ModRM:reg (w) | ModRM:r/m (r) | NA | NA |
| FVM-MR | ModRM:r/m (w) | ModRM:reg (r) | NA | NA |
Moves 2, 4 or 8 double-precision floating-point values from the source operand (second operand) to the destination operand (first operand). This instruction can be used to load an XMM, YMM or ZMM register from an 128-bit, 256- bit or 512-bit memory location, to store the contents of an XMM, YMM or ZMM register into a 128-bit, 256-bit or 512-bit memory location, or to move data between two XMM, two YMM or two ZMM registers.
When the source or destination operand is a memory operand, the operand must be aligned on a 16-byte (128-bit versions), 32-byte (256-bit version) or 64-byte (EVEX.512 encoded version) boundary or a general-protection exception (#GP) will be generated. For EVEX encoded versions, the operand must be aligned to the size of the memory operand. To move double-precision floating-point values to and from unaligned memory locations, use the VMOVUPD instruction.
Note: VEX.vvvv and EVEX.vvvv are reserved and must be 1111b otherwise instructions will #UD.
EVEX.512 encoded version:
Moves 512 bits of packed double-precision floating-point values from the source operand (second operand) to the destination operand (first operand). This instruction can be used to load a ZMM register from a 512-bit float64 memory location, to store the contents of a ZMM register into a 512-bit float64 memory location, or to move data between two ZMM registers. When the source or destination operand is a memory operand, the operand must be aligned on a 64-byte boundary or a general-protection exception (#GP) will be generated. To move single-precision floating-point values to and from unaligned memory locations, use the VMOVUPD instruction.
VEX.256 and EVEX.256 encoded versions:
Moves 256 bits of packed double-precision floating-point values from the source operand (second operand) to the destination operand (first operand). This instruction can be used to load a YMM register from a 256-bit memory location, to store the contents of a YMM register into a 256-bit memory location, or to move data between two YMM registers. When the source or destination operand is a memory operand, the operand must be aligned on a 32-byte boundary or a general-protection exception (#GP) will be generated. To move double-precision floating-point values to and from unaligned memory locations, use the VMOVUPD instruction.
128-bit versions:
Moves 128 bits of packed double-precision floating-point values from the source operand (second operand) to the destination operand (first operand). This instruction can be used to load an XMM register from a 128-bit memory location, to store the contents of an XMM register into a 128-bit memory location, or to move data between two XMM registers. When the source or destination operand is a memory operand, the operand must be aligned on a 16-byte boundary or a general-protection exception (#GP) will be generated. To move single-precision floating- point values to and from unaligned memory locations, use the VMOVUPD instruction.
128-bit Legacy SSE version: Bits (MAX_VL-1:128) of the corresponding ZMM destination register remain unchanged.
(E)VEX.128 encoded version: Bits (MAX_VL-1:128) of the destination ZMM register destination are zeroed.
VMOVAPD (EVEX encoded versions, register-copy form)
(KL, VL) = (2, 128), (4, 256), (8, 512)
FOR j ← 0 TO KL-1
i ← j * 64
IF k1[j] OR *no writemask*
THEN DEST[i+63:i] ← SRC[i+63:i]
ELSE
IF *merging-masking*
; merging-masking
THEN *DEST[i+63:i] remains unchanged*
ELSE DEST[i+63:i] ← 0
; zeroing-masking
FI
FI;
ENDFOR
DEST[MAX_VL-1:VL] ← 0
VMOVAPD (EVEX encoded versions, store-form)
(KL, VL) = (2, 128), (4, 256), (8, 512)
FOR j ← 0 TO KL-1
i ← j * 64
IF k1[j] OR *no writemask*
THEN DEST[i+63:i]← SRC[i+63:i]
ELSE
ELSE *DEST[i+63:i] remains unchanged*
; merging-masking
FI;
ENDFOR;
VMOVAPD (EVEX encoded versions, load-form)
(KL, VL) = (2, 128), (4, 256), (8, 512)
FOR j ← 0 TO KL-1
i ← j * 64
IF k1[j] OR *no writemask*
THEN DEST[i+63:i] ← SRC[i+63:i]
ELSE
IF *merging-masking*
; merging-masking
THEN *DEST[i+63:i] remains unchanged*
ELSE DEST[i+63:i] ← 0
; zeroing-masking
FI
FI;
ENDFOR
DEST[MAX_VL-1:VL] ← 0
VMOVAPD (VEX.256 encoded version, load - and register copy)
DEST[255:0] ← SRC[255:0]
DEST[MAX_VL-1:256] ← 0
VMOVAPD (VEX.256 encoded version, store-form)
DEST[255:0] ← SRC[255:0]
VMOVAPD (VEX.128 encoded version, load - and register copy)
DEST[127:0] ← SRC[127:0]
DEST[MAX_VL-1:128] ← 0
MOVAPD (128-bit load- and register-copy- form Legacy SSE version)
DEST[127:0] ← SRC[127:0]
DEST[MAX_VL-1:128] (Unmodified)
(V)MOVAPD (128-bit store-form version)
DEST[127:0] ← SRC[127:0]
VMOVAPD __m512d _mm512_load_pd( void * m);
VMOVAPD __m512d _mm512_mask_load_pd(__m512d s, __mmask8 k, void * m);
VMOVAPD __m512d _mm512_maskz_load_pd( __mmask8 k, void * m);
VMOVAPD void _mm512_store_pd( void * d, __m512d a);
VMOVAPD void _mm512_mask_store_pd( void * d, __mmask8 k, __m512d a);
VMOVAPD __m256d _mm256_mask_load_pd(__m256d s, __mmask8 k, void * m);
VMOVAPD __m256d _mm256_maskz_load_pd( __mmask8 k, void * m);
VMOVAPD void _mm256_mask_store_pd( void * d, __mmask8 k, __m256d a);
VMOVAPD __m128d _mm_mask_load_pd(__m128d s, __mmask8 k, void * m);
VMOVAPD __m128d _mm_maskz_load_pd( __mmask8 k, void * m);
VMOVAPD void _mm_mask_store_pd( void * d, __mmask8 k, __m128d a);
MOVAPD __m256d _mm256_load_pd (double * p);
MOVAPD void _mm256_store_pd(double * p, __m256d a);
MOVAPD __m128d _mm_load_pd (double * p);
MOVAPD void _mm_store_pd(double * p, __m128d a);
None
Non-EVEX-encoded instruction, see Exceptions Type1.SSE2; EVEX-encoded instruction, see Exceptions Type E1. #UD If EVEX.vvvv != 1111B or VEX.vvvv != 1111B.