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