Store Operations (Floating-Point SSE2 Intrinsics)

Microsoft Specific

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.

void _mm_store_sd (double *p, __m128d a);

MOVSD

Stores the lower double-precision, floating-point value of a. The address p does not need to be 16-byte aligned.

*p := a0
<A NAME="vcref_mm_store1_pd"></A>void _mm_store1_pd (double *p, __m128d a); 
(MOVAPD + shuffling)

Stores the lower double-precision, floating-point value of a twice. The address p must be 16-byte aligned.

p[0] := a0
p[1] := a0

void _mm_store_pd (double *p, __m128d a);

MOVAPD

Stores two double-precision, floating-point values. The address p must be 16-byte aligned.

p[0] := a0
p[1] := a1

void _mm_storeu_pd (double *p, __m128d a);

MOVUPD

Stores two double-precision, floating-point values. The address p does not need to be 16-byte aligned.

p[0] := a0
p[1] := a1

void _mm_storer_pd (double *p, __m128d a);

(MOVAPD + shuffling)

Stores two double-precision, floating-point values in reverse order. The address p must be 16-byte aligned.

p[0] := a1
p[1] := a0

void _mm_storeh_pd (double *p, __m128d a);

MOVHPD

Stores the upper double-precision, floating-point value of a.

*p := a1

void _mm_storel_pd (double *p, __m128d a);

MOVLPD

Stores the lower double-precision, floating-point value of a.

*p := a0

See Also

Reference

Floating-Point Memory and Initialization Operations Using Streaming SIMD Extensions 2