5 #define FE_UNDERFLOW 16
8 #define FE_ALL_EXCEPT 63
10 #define FE_TONEAREST 0
11 #define FE_DOWNWARD 0x400
12 #define FE_UPWARD 0x800
13 #define FE_TOWARDZERO 0xc00
15 typedef unsigned short fexcept_t;
18 unsigned short __control_word;
19 unsigned short __unused1;
20 unsigned short __status_word;
21 unsigned short __unused2;
22 unsigned short __tags;
23 unsigned short __unused3;
25 unsigned short __cs_selector;
26 unsigned int __opcode:11;
27 unsigned int __unused4:5;
28 unsigned int __data_offset;
29 unsigned short __data_selector;
30 unsigned short __unused5;
33 #define FE_DFL_ENV ((const fenv_t *) -1)