_mm_cvtsi128_si64
Visual Studio 2010
Microsoft Specific
Emits the Streaming SIMD Extensions 2 (SSE2) instruction movq. This instruction extracts the low order 64-bit integer from the parameter.
__int64 _mm_cvtsi128_si64( __m128i a );
#include <stdio.h>
#include <emmintrin.h>
int main ()
{
__m128i a;
a.m128i_i64[0] = -65535;
a.m128i_i64[1] = 1;
__int64 res = _mm_cvtsi128_si64(a);
printf_s("Original a: %I64d\t%I64d\n", a.m128i_i64[1], a.m128i_i64[0]);
printf_s("Result res: %I64d\n", res);
return 0;
}
Original a: 1 -65535 Result res: -65535
