28   // The long double representation, with the high and low portions of  in __fixunstfti()
32     double d[2];               // [0] is the high double, [1] is the low double.  in __fixunstfti()
33     unsigned long long ull[2]; // High and low doubles as 64-bit integers.  in __fixunstfti()
41   // Retrieve the 64-bit patterns of high and low doubles.  in __fixunstfti()
42   // Compute the unbiased exponent of both high and low doubles by  in __fixunstfti()
50   // CASE 1: High or low double fits in int64  in __fixunstfti()
53   // CASE 2: High or low double does not fit in int64  in __fixunstfti()
61   // Note: If the high double is assumed to be positive, an unsigned conversion  in __fixunstfti()
66   // CASE 1 - High double fits in int64.  in __fixunstfti()
70     // CASE 2 - High double does not fit in int64, scale and convert it.  in __fixunstfti()
77     // Detect cases for overflow. When the exponent of the high  in __fixunstfti()
104   // the fractional part of the high double. Because both doubles cannot  in __fixunstfti()
105   // overlap, this situation only occurs when the high double has no  in __fixunstfti()
112   // Add the high and low doublewords together to form a 128 bit integer.  in __fixunstfti()