Home | History | Annotate | Line # | Download | only in include 
      1 /* $NetBSD: ieeefp.h,v 1.2 2017/02/23 02:03:27 scole Exp $ */
      2 
      3 /*
      4  * Written by J.T. Conklin, Apr 28, 1995
      5  * Public domain.
      6  */
      7 
      8 #ifndef _IA64_IEEEFP_H_
      9 #define _IA64_IEEEFP_H_
     10 
     11 #include <sys/featuretest.h>
     12 
     13 #if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE)
     14 
     15 #include <ia64/fenv.h>
     16 
     17 /*
     18  * These bits match the fpcr as well as bits 12:11
     19  * in fp operate instructions
     20  */
     21 /* XXX remove since fenv.h now contains (but with different values)? */
     22 #if 0
     23 #define	FE_TOWARDZERO	0	/* round to zero (truncate) */
     24 #define	FE_DOWNWARD	1	/* round toward negative infinity */
     25 #define	FE_TONEAREST	2	/* round to nearest representable number */
     26 #define	FE_UPWARD	3	/* round toward positive infinity */
     27 #endif
     28 
     29 #if !defined(_ISOC99_SOURCE)
     30 
     31 typedef int fp_except;
     32 
     33 #define	FP_X_INV	FE_INVALID	/* invalid operation exception */
     34 #define	FP_X_DZ		FE_DIVBYZERO	/* divide-by-zero exception */
     35 #define	FP_X_OFL	FE_OVERFLOW	/* overflow exception */
     36 #define	FP_X_UFL	FE_UNDERFLOW	/* underflow exception */
     37 #define	FP_X_IMP	FE_INEXACT	/* imprecise (prec. loss; "inexact") */
     38 #define	FP_X_IOV	FE_IOVERFLOW	/* integer overflow */
     39 
     40 /*
     41  * fp_rnd bits match the fpcr, below, as well as bits 12:11
     42  * in fp operate instructions
     43  */
     44 typedef enum {
     45     FP_RZ = FE_TOWARDZERO,	/* round to zero (truncate) */
     46     FP_RM = FE_DOWNWARD,	/* round toward negative infinity */
     47     FP_RN = FE_TONEAREST,	/* round to nearest representable number */
     48     FP_RP = FE_UPWARD,		/* round toward positive infinity */
     49     _FP_DYNAMIC=FP_RP
     50 } fp_rnd;
     51 
     52 #endif /* !_ISOC99_SOURCE */
     53 
     54 #endif	/* _NETBSD_SOURCE || _ISOC99_SOURCE */
     55 
     56 #endif /* _IA64_IEEEFP_H_ */
     57 
     58 
     59 
     60 
     61 
     62 
     63 
     64 
     65 
     66 
     67