image/svg+xmlXORPD—Bitwise Logical XOR of Packed Double Precision Floating-Point ValuesInstruction Operand EncodingDescriptionPerforms a bitwise logical XOR of the two, four or eight packed double-precision floating-point values from the first source operand and the second source operand, and stores the result in the destination operand.EVEX.512 encoded version: The first source operand is a ZMM register. The second source operand can be a ZMM register or a vector memory location. The destination operand is a ZMM register conditionally updated with writemask k1.VEX.256 and EVEX.256 encoded versions: The first source operand is a YMM register. The second source operand is a YMM register or a 256-bit memory location. The destination operand is a YMM register (conditionally updated with writemask k1 in case of EVEX). The upper bits (MAXVL-1:256) of the corresponding ZMM register destination are zeroed.VEX.128 and EVEX.128 encoded versions: The first source operand is an XMM register. The second source operand is an XMM register or 128-bit memory location. The destination operand is an XMM register (conditionally updated with writemask k1 in case of EVEX). 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 desti-nation is not distinct from the first source XMM register and the upper bits (MAXVL-1:128) of the corresponding register destination are unmodified.Opcode/InstructionOp / En64/32 bit Mode SupportCPUID Feature FlagDescription66 0F 57/rXORPD xmm1, xmm2/m128AV/VSSE2Return the bitwise logical XOR of packed double-precision floating-point values in xmm1 and xmm2/mem.VEX.128.66.0F.WIG 57 /rVXORPD xmm1,xmm2, xmm3/m128BV/VAVXReturn the bitwise logical XOR of packed double-precision floating-point values in xmm2 and xmm3/mem.VEX.256.66.0F.WIG 57 /rVXORPD ymm1, ymm2, ymm3/m256BV/VAVXReturn the bitwise logical XOR of packed double-precision floating-point values in ymm2 and ymm3/mem.EVEX.128.66.0F.W1 57 /rVXORPD xmm1 {k1}{z}, xmm2, xmm3/m128/m64bcstCV/VAVX512VLAVX512DQReturn the bitwise logical XOR of packed double-precision floating-point values in xmm2 and xmm3/m128/m64bcst subject to writemask k1.EVEX.256.66.0F.W1 57 /rVXORPD ymm1 {k1}{z}, ymm2, ymm3/m256/m64bcstCV/VAVX512VLAVX512DQReturn the bitwise logical XOR of packed double-precision floating-point values in ymm2 and ymm3/m256/m64bcst subject to writemask k1.EVEX.512.66.0F.W1 57 /rVXORPD zmm1 {k1}{z}, zmm2, zmm3/m512/m64bcstCV/VAVX512DQReturn the bitwise logical XOR of packed double-precision floating-point values in zmm2 and zmm3/m512/m64bcst subject to writemask k1.Op/EnTuple TypeOperand 1Operand 2Operand 3Operand 4ANAModRM:reg (r, w)ModRM:r/m (r)NANABNAModRM:reg (w)VEX.vvvv (r)ModRM:r/m (r)NACFullModRM:reg (w)EVEX.vvvv (r)ModRM:r/m (r)NA

image/svg+xmlOperationVXORPD (EVEX encoded versions)(KL, VL) = (2, 128), (4, 256), (8, 512)FOR j := 0 TO KL-1i := j * 64IF k1[j] OR *no writemask* THENIF (EVEX.b == 1) AND (SRC2 *is memory*)THEN DEST[i+63:i] := SRC1[i+63:i] BITWISE XOR SRC2[63:0];ELSE DEST[i+63:i] := SRC1[i+63:i] BITWISE XOR SRC2[i+63:i];FI;ELSE IF *merging-masking*; merging-maskingTHEN *DEST[i+63:i] remains unchanged*ELSE *zeroing-masking*; zeroing-maskingDEST[i+63:i] = 0FIFI;ENDFORDEST[MAXVL-1:VL] := 0VXORPD (VEX.256 encoded version)DEST[63:0] := SRC1[63:0] BITWISE XOR SRC2[63:0]DEST[127:64] := SRC1[127:64] BITWISE XOR SRC2[127:64]DEST[191:128] := SRC1[191:128] BITWISE XOR SRC2[191:128]DEST[255:192] := SRC1[255:192] BITWISE XOR SRC2[255:192]DEST[MAXVL-1:256] := 0VXORPD (VEX.128 encoded version)DEST[63:0] := SRC1[63:0] BITWISE XOR SRC2[63:0]DEST[127:64] := SRC1[127:64] BITWISE XOR SRC2[127:64]DEST[MAXVL-1:128] := 0XORPD (128-bit Legacy SSE version)DEST[63:0] := DEST[63:0] BITWISE XOR SRC[63:0]DEST[127:64] := DEST[127:64] BITWISE XOR SRC[127:64]DEST[MAXVL-1:128] (Unmodified)Intel C/C++ Compiler Intrinsic EquivalentVXORPD __m512d _mm512_xor_pd (__m512d a, __m512d b);VXORPD __m512d _mm512_mask_xor_pd (__m512d a, __mmask8 m, __m512d b);VXORPD __m512d _mm512_maskz_xor_pd (__mmask8 m, __m512d a);VXORPD __m256d _mm256_xor_pd (__m256d a, __m256d b);VXORPD __m256d _mm256_mask_xor_pd (__m256d a, __mmask8 m, __m256d b);VXORPD __m256d _mm256_maskz_xor_pd (__mmask8 m, __m256d a);XORPD __m128d _mm_xor_pd (__m128d a, __m128d b);VXORPD __m128d _mm_mask_xor_pd (__m128d a, __mmask8 m, __m128d b);VXORPD __m128d _mm_maskz_xor_pd (__mmask8 m, __m128d a);SIMD Floating-Point ExceptionsNone

image/svg+xmlOther ExceptionsNon-EVEX-encoded instructions, see Table2-21, “Type 4 Class Exception Conditions”.EVEX-encoded instructions, see Table2-49, “Type E4 Class Exception Conditions”.

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