_mm_sub_sd
Classification
SSE_ALL, Arithmetic, CPUID Test: SSE2
Header File
emmintrin.h
Instruction
SUBSD xmm, xmm
Synopsis
 _mm_sub_sd(__m128d a, __m128d b);
Description
Subtract the lower double-precision (64-bit) floating-point element in "b" from the lower double-precision (64-bit) floating-point element in "a", store the result in the lower element of "dst", and copy the upper element from "a" to the upper element of "dst".
Operation
dst[63:0] := a[63:0] - b[63:0]
dst[127:64] := a[127:64]