2 * Based on sys/sparc64/include/ieeefp.h
7 #ifndef _MACHINE_IEEEFP_H_
8 #define _MACHINE_IEEEFP_H_
10 /* Deprecated FPU control interface */
12 /* FP exception codes */
13 #define FP_EXCEPT_INV 8
14 #define FP_EXCEPT_DZ 9
15 #define FP_EXCEPT_OFL 10
16 #define FP_EXCEPT_UFL 11
17 #define FP_EXCEPT_IMP 12
18 #define FP_EXCEPT_DNML 15
20 typedef int fp_except_t;
22 #define FP_X_INV (1 << FP_EXCEPT_INV) /* invalid operation exception */
23 #define FP_X_DZ (1 << FP_EXCEPT_DZ) /* divide-by-zero exception */
24 #define FP_X_OFL (1 << FP_EXCEPT_OFL) /* overflow exception */
25 #define FP_X_UFL (1 << FP_EXCEPT_UFL) /* underflow exception */
26 #define FP_X_IMP (1 << FP_EXCEPT_IMP) /* imprecise (loss of precision) */
27 #define FP_X_DNML (1 << FP_EXCEPT_DNML) /* denormal exception */
30 FP_RN = (0 << 22), /* round to nearest representable number */
31 FP_RP = (1 << 22), /* round toward positive infinity */
32 FP_RM = (2 << 22), /* round toward negative infinity */
33 FP_RZ = (3 << 22) /* round to zero (truncate) */
37 extern fp_rnd_t fpgetround(void);
38 extern fp_rnd_t fpsetround(fp_rnd_t);
39 extern fp_except_t fpgetmask(void);
40 extern fp_except_t fpsetmask(fp_except_t);
44 #endif /* _MACHINE_IEEEFP_H_ */