chichur

static float Converter(ushort[] buffer)
{
    byte[] bytes = new byte[4];
    bytes[0] = (byte)(buffer[1] & 0xFF);
    bytes[1] = (byte)(buffer[1] >> 8);
    bytes[2] = (byte)(buffer[0] & 0xFF);
    bytes[3] = (byte)(buffer[0] >> 8);
    float value = BitConverter.ToSingle(bytes, 0);
    return value;
}

chichur

#include <time.h>
#include <stdio.h>
#include <malloc.h>
#include <stdlib.h>
#define C55 0x5555555555555555ULL
#define C33 0x3333333333333333ULL
#define C0F 0x0f0f0f0f0f0f0f0fULL
#define C01 0x0101010101010101ULL