1 /*- 2 * Based on sys/sparc64/include/ieeefp.h 3 * Public domain. 4 * $FreeBSD$ 5 */ 6 7 #ifdef __arm__ 8 #include <arm/ieeefp.h> 9 #else /* !__arm__ */ 10 11 #ifndef _MACHINE_IEEEFP_H_ 12 #define _MACHINE_IEEEFP_H_ 13 14 /* Deprecated FPU control interface */ 15 16 /* FP exception codes */ 17 #define FP_EXCEPT_INV 8 18 #define FP_EXCEPT_DZ 9 19 #define FP_EXCEPT_OFL 10 20 #define FP_EXCEPT_UFL 11 21 #define FP_EXCEPT_IMP 12 22 #define FP_EXCEPT_DNML 15 23 24 typedef int fp_except_t; 25 26 #define FP_X_INV (1 << FP_EXCEPT_INV) /* invalid operation exception */ 27 #define FP_X_DZ (1 << FP_EXCEPT_DZ) /* divide-by-zero exception */ 28 #define FP_X_OFL (1 << FP_EXCEPT_OFL) /* overflow exception */ 29 #define FP_X_UFL (1 << FP_EXCEPT_UFL) /* underflow exception */ 30 #define FP_X_IMP (1 << FP_EXCEPT_IMP) /* imprecise (loss of precision) */ 31 #define FP_X_DNML (1 << FP_EXCEPT_DNML) /* denormal exception */ 32 33 typedef enum { 34 FP_RN = (0 << 22), /* round to nearest representable number */ 35 FP_RP = (1 << 22), /* round toward positive infinity */ 36 FP_RM = (2 << 22), /* round toward negative infinity */ 37 FP_RZ = (3 << 22) /* round to zero (truncate) */ 38 } fp_rnd_t; 39 40 __BEGIN_DECLS 41 extern fp_rnd_t fpgetround(void); 42 extern fp_rnd_t fpsetround(fp_rnd_t); 43 extern fp_except_t fpgetmask(void); 44 extern fp_except_t fpsetmask(fp_except_t); 45 __END_DECLS 46 47 #endif /* _MACHINE_IEEEFP_H_ */ 48 49 #endif /* !__arm__ */ 50