_mm_round_ps
Classification
SSE_ALL, Special Math Functions, CPUID Test: SSE4.1
Header File
smmintrin.h
Instruction
ROUNDPS xmm, xmm, imm8
Synopsis
 _mm_round_ps(__m128 a, int rounding);
Description
Round the packed single-precision (32-bit) floating-point elements in "a" using the "rounding" parameter, and store the results as packed single-precision floating-point elements in "dst". [round_note]
Operation
FOR j := 0 to 3
	i := j*32
	dst[i+31:i] := ROUND(a[i+31:i], rounding)
ENDFOR