_mm_cvtss_sd
Classification
Header File
Instruction
CVTSS2SD xmm, xmm
Synopsis
_mm_cvtss_sd(__m128d a, __m128 b);
Description
Convert the lower single-precision (32-bit) floating-point element in "b" to a double-precision (64-bit) floating-point element, 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] := Convert_FP32_To_FP64(b[31:0])
dst[127:64] := a[127:64]
dst[MAX:128] := 0