union u_t {  long value;  __fixed16x16 fix;};__fixed16x16 __fps16x16_div(__fixed16x16 a, __fixed16x16 b){  volatile union u_t u1, u2;  u1.fix = a;  u2.fix = b;    u1.value = ((u1.value << 6) / u2.value) << 10;  return (u1.fix);}