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Intel® Architecture Instruction Set Extensions Programming Reference

Intel® Architecture Instruction Set Extensions Programming Reference

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INSTRUCTION SET REFERENCE<br />

Operation<br />

VPERM2I128<br />

CASE IMM8[1:0] of<br />

0: DEST[127:0] SRC1[127:0]<br />

1: DEST[127:0] SRC1[255:128]<br />

2: DEST[127:0] SRC2[127:0]<br />

3: DEST[127:0] SRC2[255:128]<br />

ESAC<br />

CASE IMM8[5:4] of<br />

0: DEST[255:128] SRC1[127:0]<br />

1: DEST[255:128] SRC1[255:128]<br />

2: DEST[255:128] SRC2[127:0]<br />

3: DEST[255:128] SRC2[255:128]<br />

ESAC<br />

IF (imm8[3])<br />

DEST[127:0] 0<br />

FI<br />

IF (imm8[7])<br />

DEST[255:128] 0<br />

FI<br />

Intel C/C++ Compiler Intrinsic Equivalent<br />

VPERM2I128: __m256i _mm256_permute2x128_si256 (__m256i a, __m256i b, int control)<br />

SIMD Floating-Point Exceptions<br />

None<br />

Other Exceptions<br />

See Exceptions Type 6; additionally<br />

#UD If VEX.L = 0,<br />

If VEX.W = 1.<br />

5-190 Ref. # 319433-014

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