# Integer Vector Intrinsic

The integer vector intrinsic listed here is designed for the Intel® Pentium® 4 processor with Streaming SIMD Extensions 3 (Intel® SSE3). The prototype for this intrinsic is in the pmmintrin.h header file.

To use this intrinsic, include the immintrin.h file as follows:

    #include <immintrin.h>

R represents the register into which the returns are placed.

## _mm_lddqu_si128

__m128i _mm_lddqu_si128(__m128i const *p);

Loads an unaligned 128-bit value. This differs from `MOVDQU` in that it can provide higher performance in some cases. However, it also may provide lower performance than `MOVDQU` if the memory value being read was just written.

R
*p;

Parent topic: Intrinsics for Intel® Streaming SIMD Extensions 3 (Intel® SSE3)