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