ADDPD
Add Packed Double Precision Floating-Point Values
stableVMJITAOTinstruction
Encodings
| Opcode | Instruction | Op/En | 64-bit | Compat/Legacy | Description |
|---|---|---|---|---|---|
66 0F 58 /r | ADDPD xmm1, xmm2/m128 | A | Valid | Valid | Add packed double precision floating-point values from xmm2/mem to xmm1 and store result in xmm1. |
VEX.128.66.0F.WIG 58 /r | VADDPD xmm1,xmm2, xmm3/m128 | B | Valid | Valid | Add packed double precision floating-point values from xmm3/mem to xmm2 and store result in xmm1. |
VEX.256.66.0F.WIG 58 /r | VADDPD ymm1, ymm2, ymm3/m256 | B | Valid | Valid | Add packed double precision floating-point values from ymm3/mem to ymm2 and store result in ymm1. |
EVEX.128.66.0F.W1 58 /r | VADDPD xmm1 {k1}{z}, xmm2, xmm3/m128/m64bcst | C | Valid | Valid | Add packed double precision floating-point values from AVX512F) OR xmm3/m128/m64bcst to xmm2 and store result in xmm1 AVX10.1 with writemask k1. |
EVEX.256.66.0F.W1 58 /r | VADDPD ymm1 {k1}{z}, ymm2, ymm3/m256/m64bcst | C | Valid | Valid | Add packed double precision floating-point values from AVX512F) OR ymm3/m256/m64bcst to ymm2 and store result in ymm1 AVX10.1 with writemask k1. |
EVEX.512.66.0F.W1 58 /r | VADDPD zmm1 {k1}{z}, zmm2, zmm3/m512/m64bcst {er} | C | Valid | Valid | Add packed double precision floating-point values from AVX10.1 zmm3/m512/m64bcst to zmm2 and store result in zmm1 with writemask k1. |
Operand encoding
Each mode is a value of the Op/En column above. It says which field of the encoded instruction carries each operand, in the order they are written, and whether the instruction reads it, writes it or both.
A
modrm.reglectura y escrituraModRM byte, reg field (bits 5-3)modrm.rmlecturaModRM byte, r/m field (bits 2-0); with the SIB byte and the displacement when the mod field asks for them
B
modrm.regescrituraModRM byte, reg field (bits 5-3)vex.vvvvlecturaVEX prefix, vvvv field (inverted)modrm.rmlecturaModRM byte, r/m field (bits 2-0); with the SIB byte and the displacement when the mod field asks for them
C
modrm.regescrituraModRM byte, reg field (bits 5-3)evex.vvvvlecturaEVEX prefix, vvvv field (inverted)modrm.rmlecturaModRM byte, r/m field (bits 2-0); with the SIB byte and the displacement when the mod field asks for them
Tupla: Full
Measured cost
Loading measurements from arch-data...
Description
Adds two, four or eight packed double precision floating-point values from the first source operand to the second source operand, and stores the packed double precision floating-point result in the destination operand.
EVEX encoded versions: The first source operand is a ZMM/YMM/XMM register. The second source operand can be a ZMM/YMM/XMM register, a 512/256/128-bit memory location or a 512/256/128-bit vector broadcasted from a 64-bit memory location. The destination operand is a ZMM/YMM/XMM register conditionally updated with writemask k1.
VEX.256 encoded version: The first source operand is a YMM register. The second source operand can be a YMM register or a 256-bit memory location. The destination operand is a YMM register. The upper bits (MAXVL-1:256) of the corresponding ZMM register destination are zeroed.
VEX.128 encoded version: the first source operand is a XMM register. The second source operand is an XMM register or 128-bit memory location. The destination operand is an XMM register. The upper bits (MAXVL-1:128) of the corresponding ZMM register destination are zeroed.
128-bit Legacy SSE version: The second source can be an XMM register or an 128-bit memory location. The destination is not distinct from the first source XMM register and the upper Bits (MAXVL-1:128) of the corresponding ZMM register destination are unmodified.
Operation
VADDPD (EVEX Encoded Versions) When SRC2 Operand is a Vector Register
(KL, VL) = (2, 128), (4, 256), (8, 512)
IF (VL = 512) AND (EVEX.b = 1)
THEN
SET_ROUNDING_MODE_FOR_THIS_INSTRUCTION(EVEX.RC);
ELSE
SET_ROUNDING_MODE_FOR_THIS_INSTRUCTION(MXCSR.RC);
FI;
FOR j := 0 TO KL-1
i := j * 64
IF k1[j] OR *no writemask*
THEN DEST[i+63:i] := SRC1[i+63:i] + SRC2[i+63:i]
ELSE
IF *merging-masking* ; merging-masking
THEN *DEST[i+63:i] remains unchanged*
ELSE ; zeroing-masking
DEST[i+63:i] := 0
FI
FI;
ENDFOR
DEST[MAXVL-1:VL] := 0
VADDPD (EVEX Encoded Versions) When SRC2 Operand is a Memory Source
(KL, VL) = (2, 128), (4, 256), (8, 512)
FOR j := 0 TO KL-1
i := j * 64
IF k1[j] OR *no writemask*
THEN
IF (EVEX.b = 1)
THEN
DEST[i+63:i] := SRC1[i+63:i] + SRC2[63:0]
ELSE
DEST[i+63:i] := SRC1[i+63:i] + SRC2[i+63:i]
FI;
ELSE
IF *merging-masking* ; merging-masking
THEN *DEST[i+63:i] remains unchanged*
ELSE ; zeroing-masking
DEST[i+63:i] := 0
FI
FI;
ENDFOR
DEST[MAXVL-1:VL] := 0
VADDPD (VEX.256 Encoded Version)
DEST[63:0] := SRC1[63:0] + SRC2[63:0]
DEST[127:64] := SRC1[127:64] + SRC2[127:64]
DEST[191:128] := SRC1[191:128] + SRC2[191:128]
DEST[255:192] := SRC1[255:192] + SRC2[255:192]
DEST[MAXVL-1:256] := 0
.
VADDPD (VEX.128 Encoded Version)
DEST[63:0] := SRC1[63:0] + SRC2[63:0]
DEST[127:64] := SRC1[127:64] + SRC2[127:64]
DEST[MAXVL-1:128] := 0
ADDPD (128-bit Legacy SSE Version)
DEST[63:0] := DEST[63:0] + SRC[63:0]
DEST[127:64] := DEST[127:64] + SRC[127:64]
DEST[MAXVL-1:128] (Unmodified)Intel C/C++ compiler intrinsics
VADDPD __m512d _mm512_add_pd (__m512d a, __m512d b);
VADDPD __m512d _mm512_mask_add_pd (__m512d s, __mmask8 k, __m512d a, __m512d b);
VADDPD __m512d _mm512_maskz_add_pd (__mmask8 k, __m512d a, __m512d b);
VADDPD __m256d _mm256_mask_add_pd (__m256d s, __mmask8 k, __m256d a, __m256d b);
VADDPD __m256d _mm256_maskz_add_pd (__mmask8 k, __m256d a, __m256d b);
VADDPD __m128d _mm_mask_add_pd (__m128d s, __mmask8 k, __m128d a, __m128d b);
VADDPD __m128d _mm_maskz_add_pd (__mmask8 k, __m128d a, __m128d b);
VADDPD __m512d _mm512_add_round_pd (__m512d a, __m512d b, int);
VADDPD __m512d _mm512_mask_add_round_pd (__m512d s, __mmask8 k, __m512d a, __m512d b, int);
VADDPD __m512d _mm512_maskz_add_round_pd (__mmask8 k, __m512d a, __m512d b, int);
ADDPD __m256d _mm256_add_pd (__m256d a, __m256d b);
ADDPD __m128d _mm_add_pd (__m128d a, __m128d b);SIMD Floating-Point Exceptions
Overflow, Underflow, Invalid, Precision, Denormal.
Other Exceptions
VEX-encoded instruction, see Table 2-19, "Type 2 Class Exception Conditions."
EVEX-encoded instruction, see Table 2-48, "Type E2 Class Exception Conditions."