Developer Guide and Reference

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Set Intrinsics (MMX™ technology)

This topic summarizes the MMX™ technology intrinsics.
To use these intrinsics, include the
immintrin.h
file as follows:
#include <immintrin.h>
In the descriptions regarding the bits of the
MMX
™ register, bit 0 is the least significant and bit 63 is the most significant.
Intrinsic Name
Operation
Corresponding
MMX™ Instruction
_mm_setzero_si64
set to zero
PXOR
_mm_set_pi32
set integer values
Composite
_mm_set_pi16
set integer values
Composite
_mm_set_pi8
set integer values
Composite
_mm_set1_pi32
set integer values
Composite
_mm_set1_pi16
set integer values
Composite
_mm_set1_pi8
set integer values
Composite
_mm_setr_pi32
set integer values
Composite
_mm_setr_pi16
set integer values
Composite
_mm_setr_pi8
set integer values
Composite

_mm_setzero_si64

__m64 _mm_setzero_si64(void);
Sets the 64-bit value to zero.
R
0x0

_mm_set_pi32

__m64 _mm_set_pi32(int i1, int i0);
Sets the two signed 32-bit integer values.
R0
R1
i0
i1

_mm_set_pi16

__m64 _mm_set_pi16(short s3, short s2, short s1, short s0);
Sets the four signed 16-bit integer values.
R0
R1
R2
R3
w0
w1
w2
w3

_mm_set_pi8

__m64 _mm_set_pi8(char b7, char b6, char b5, char b4, char b3, char b2, char b1, char b0);
Sets the eight signed 8-bit integer values.
R0
R1
...
R7
b0
b1
...
b7

_mm_set1_pi32

__m64 _mm_set1_pi32(int i);
Sets the two signed 32-bit integer values to
i
.