int LFSR_Fibonacci ()

{

static unsigned long S = 0x00000001;

S = ((((S >> 31) ^ (S >> 30) ^ (S >> 29) ^ (S >> 27) ^ (S >> 25) ^ S ) & 0x00000001 ) << 31 ) | (S >> 1);

return S & 0x00000001;

}