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Load Operations (SSE)

Microsoft Specific

The intrinsics listed in the following table are followed by a description of each intrinsic.

SSE intrinsics use the __m128, __m128i, and __m128d data types, which are not supported on Itanium Processor Family (IPF) processors. Any SSE intrinsics that use the __m64 data type are not supported on x64 processors.

The header file xmmintrin.h contains the declarations for the SSE intrinsics.

Memory and Initialization Load Operations
Intrinsic name Operation Corresponding instruction

_mm_load_ss

Loads the low value and clears the three high values

MOVSS

_mm_load1_ps, _mm_load_ps1

Loads one value into all four words

MOVSS + Shuffling

_mm_load_ps

Loads four values, address aligned

MOVAPS

_mm_loadu_ps

Loads four values, address unaligned

MOVUPS

_mm_loadr_ps

Loads four values, in reverse order

MOVAPS + Shuffling

For an explanation of the syntax used in code samples in this topic, see Floating-Point Intrinsics Using Streaming SIMD Extensions.

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