Load Operations (Integer SSE2 Intrinsics)
The load operation intrinsics and their respective instructions are functional on Intel processors supporting Streaming SIMD Extensions 2 (SSE2) instructions.
For an explanation of the syntax used in code samples in this topic, see Floating-Point Intrinsics Using Streaming SIMD Extensions.
SSE2 intrinsics use the __m128, __m128i, and __m128d data types, which are not supported on Itanium Processor Family (IPF) processors. Any SSE2 intrinsics that use the __m64 data type are not supported on x64 processors.
The emmintrin.h header file contains the declarations for the SSE2 instructions intrinsics.
__m128i _mm_load_si128 (__m128i *p);
Loads 128-bit value. Address p must be 16-byte aligned.
__m128i _mm_loadu_si128 (__m128i *p);
Loads 128-bit value. Address p does not need be 16-byte aligned.
__m128i _mm_loadl_epi64(__m128i const*p);
Load the lower 64 bits of the value pointed to by p into the lower 64 bits of the result, zeroing the upper 64 bits of the result.
r0:= *p[63:0] r1:=0x0