void show_float(unsigned uf)
{
float f = u2f(uf);
unsigned exp = get_exp(uf);
unsigned frac = get_frac(uf);
unsigned sign = get_sign(uf);
printf("\nFloating point value %.10g\n", f);
printf("Bit Representation 0x%.8x, sign = %x, exponent = 0x%.2x, fraction = 0x%.6x\n",
uf, sign, exp, frac);
if (exp == EXP_MASK) {
if (frac == 0) {
printf("%cInfinity\n", sign ? '-' : '+');
} else
printf("Not-A-Number\n");
} else {
int denorm = (exp == 0);
int uexp = denorm ? 1-BIAS : exp - BIAS;
int mantissa = denorm ? frac : frac + (1<<FRAC_SIZE);
float fman = (float) mantissa / (float) (1<<FRAC_SIZE);
printf("%s. %c%.10f X 2^(%d)\n",
denorm ? "Denormalized" : "Normalized",
sign ? '-' : '+',
fman, uexp);
}
}
double FixedPoint::to_double() const
{
return static_cast<double>(get_int()) + (static_cast<double>(get_frac()) / static_cast<double>(max_frac));
}
