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      1 /*	$NetBSD: ieeefp.h,v 1.7 2017/03/22 23:11:09 chs Exp $	*/
      2 
      3 /*
      4  * Written by J.T. Conklin, Apr 6, 1995
      5  * Public domain.
      6  */
      7 
      8 #ifndef _POWERPC_IEEEFP_H_
      9 #define _POWERPC_IEEEFP_H_
     10 
     11 #include <sys/featuretest.h>
     12 
     13 #if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE)
     14 
     15 #include <powerpc/fenv.h>
     16 
     17 #if !defined(_ISOC99_SOURCE)
     18 
     19 typedef int fp_except;
     20 
     21 /* adjust for FP_* and FE_* value differences */
     22 #define	__FPE(x) ((x) >> 25)
     23 #define	__FEE(x) ((x) << 25)
     24 #define	__FPR(x) ((x))
     25 #define	__FER(x) ((x))
     26 
     27 #define FP_X_IMP	__FPE(FE_INEXACT)	/* imprecise (loss of precision) */
     28 #define FP_X_DZ		__FPE(FE_DIVBYZERO)	/* divide-by-zero exception */
     29 #define FP_X_UFL	__FPE(FE_UNDERFLOW)	/* underflow exception */
     30 #define FP_X_OFL	__FPE(FE_OVERFLOW)	/* overflow exception */
     31 #define FP_X_INV	__FPE(FE_INVALID)	/* invalid operation exception */
     32 
     33 typedef enum {
     34     FP_RN=__FPR(FE_TONEAREST),	/* round to nearest representable number */
     35     FP_RZ=__FPR(FE_TOWARDZERO),	/* round to zero (truncate) */
     36     FP_RP=__FPR(FE_UPWARD),	/* round toward positive infinity */
     37     FP_RM=__FPR(FE_DOWNWARD)	/* round toward negative infinity */
     38 } fp_rnd;
     39 
     40 #endif /* !_ISOC99_SOURCE */
     41 
     42 #endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */
     43 
     44 #endif /* _POWERPC_IEEEFP_H_ */
     45