- /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
- Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
- Intel IA-64 Architecture Software Developer's Manual, Volume 1:
- Application Architecture.
- Table 5-2 "Floating-Point Register Encodings"
- Figure 5-6 "Memory to Floating-Point Register Data Translation"
- */