1/*- 2 * Written by J.T. Conklin, Apr 6, 1995 3 * Public domain. 4 * $FreeBSD$ 5 */ 6 7#ifndef _MACHINE_IEEEFP_H_ 8#define _MACHINE_IEEEFP_H_ 9 10/* Deprecated FPU control interface */ 11 12#include <machine/fsr.h> 13 14typedef int fp_except_t; 15#define FP_X_IMP FSR_NX /* imprecise (loss of precision) */ 16#define FP_X_DZ FSR_DZ /* divide-by-zero exception */ 17#define FP_X_UFL FSR_UF /* underflow exception */ 18#define FP_X_OFL FSR_OF /* overflow exception */ 19#define FP_X_INV FSR_NV /* invalid operation exception */ 20 21typedef enum { 22 FP_RN = FSR_RD_N, /* round to nearest representable number */ 23 FP_RZ = FSR_RD_Z, /* round to zero (truncate) */ 24 FP_RP = FSR_RD_PINF, /* round toward positive infinity */ 25 FP_RM = FSR_RD_NINF /* round toward negative infinity */ 26} fp_rnd_t; 27 28__BEGIN_DECLS 29extern fp_rnd_t fpgetround(void); 30extern fp_rnd_t fpsetround(fp_rnd_t); 31extern fp_except_t fpgetmask(void); 32extern fp_except_t fpsetmask(fp_except_t); 33extern fp_except_t fpgetsticky(void); 34__END_DECLS 35 36 37#endif /* _MACHINE_IEEEFP_H_ */ 38