49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/*-
|
|
* Based on sys/sparc64/include/ieeefp.h
|
|
* Public domain.
|
|
*/
|
|
|
|
#ifdef __arm__
|
|
#include <arm/ieeefp.h>
|
|
#else /* !__arm__ */
|
|
|
|
#ifndef _MACHINE_IEEEFP_H_
|
|
#define _MACHINE_IEEEFP_H_
|
|
|
|
/* Deprecated FPU control interface */
|
|
|
|
/* FP exception codes */
|
|
#define FP_EXCEPT_INV 8
|
|
#define FP_EXCEPT_DZ 9
|
|
#define FP_EXCEPT_OFL 10
|
|
#define FP_EXCEPT_UFL 11
|
|
#define FP_EXCEPT_IMP 12
|
|
#define FP_EXCEPT_DNML 15
|
|
|
|
typedef int fp_except_t;
|
|
|
|
#define FP_X_INV (1 << FP_EXCEPT_INV) /* invalid operation exception */
|
|
#define FP_X_DZ (1 << FP_EXCEPT_DZ) /* divide-by-zero exception */
|
|
#define FP_X_OFL (1 << FP_EXCEPT_OFL) /* overflow exception */
|
|
#define FP_X_UFL (1 << FP_EXCEPT_UFL) /* underflow exception */
|
|
#define FP_X_IMP (1 << FP_EXCEPT_IMP) /* imprecise (loss of precision) */
|
|
#define FP_X_DNML (1 << FP_EXCEPT_DNML) /* denormal exception */
|
|
|
|
typedef enum {
|
|
FP_RN = (0 << 22), /* round to nearest representable number */
|
|
FP_RP = (1 << 22), /* round toward positive infinity */
|
|
FP_RM = (2 << 22), /* round toward negative infinity */
|
|
FP_RZ = (3 << 22) /* round to zero (truncate) */
|
|
} fp_rnd_t;
|
|
|
|
__BEGIN_DECLS
|
|
extern fp_rnd_t fpgetround(void);
|
|
extern fp_rnd_t fpsetround(fp_rnd_t);
|
|
extern fp_except_t fpgetmask(void);
|
|
extern fp_except_t fpsetmask(fp_except_t);
|
|
__END_DECLS
|
|
|
|
#endif /* _MACHINE_IEEEFP_H_ */
|
|
|
|
#endif /* !__arm__ */
|