/*
* Convert CSC fix point values to floats
*/
real fixval (int fix)
{
int exp = fix >> 9;
int mant = fix & ((1 << 9) - 1);
real ret;
if (exp == 0x7)
return 1.0;
ret = (2 ** -exp) * mant / (1 << 9);
return ret;
}