1 /* $NetBSD: ieeefp.h,v 1.7 2009/01/27 19:04:39 martin Exp $ */ 2 3 /* 4 * Written by J.T. Conklin, Apr 6, 1995 5 * Modified by Jason R. Thorpe, June 22, 2003 6 * Public domain. 7 */ 8 9 #ifndef _M68K_IEEEFP_H_ 10 #define _M68K_IEEEFP_H_ 11 12 #include <sys/featuretest.h> 13 14 #if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE) 15 16 typedef int fenv_t; 17 typedef int fexcept_t; 18 19 #define FE_INEXACT 0x01 /* imprecise (loss of precision) */ 20 #define FE_DIVBYZERO 0x02 /* divide-by-zero exception */ 21 #define FE_UNDERFLOW 0x04 /* overflow exception */ 22 #define FE_OVERFLOW 0x08 /* underflow exception */ 23 #define FE_INVALID 0x10 /* invalid operation exception */ 24 25 #define FE_ALL_EXCEPT 0x1f 26 27 #define FE_TONEAREST 0 /* round to nearest representable number */ 28 #define FE_TOWARDZERO 1 /* round to zero (truncate) */ 29 #define FE_DOWNWARD 2 /* round toward negative infinity */ 30 #define FE_UPWARD 3 /* round toward positive infinity */ 31 32 #if !defined(_ISOC99_SOURCE) 33 34 typedef int fp_except; 35 36 #define FP_X_IMP FE_INEXACT /* imprecise (loss of precision) */ 37 #define FP_X_DZ FE_DIVBYZERO /* divide-by-zero exception */ 38 #define FP_X_UFL FE_UNDERFLOW /* underflow exception */ 39 #define FP_X_OFL FE_OVERFLOW /* overflow exception */ 40 #define FP_X_INV FE_INVALID /* invalid operation exception */ 41 42 typedef enum { 43 FP_RN=FE_TONEAREST, /* round to nearest representable number */ 44 FP_RZ=FE_TOWARDZERO, /* round to zero (truncate) */ 45 FP_RM=FE_DOWNWARD, /* round toward negative infinity */ 46 FP_RP=FE_UPWARD /* round toward positive infinity */ 47 } fp_rnd; 48 49 typedef enum { 50 FP_PE=0, /* extended-precision (64-bit) */ 51 FP_PS=1, /* single-precision (24-bit) */ 52 FP_PD=2 /* double-precision (53-bit) */ 53 } fp_prec; 54 55 #endif /* defined(_NETBSD_SOURCE) */ 56 57 #define __HAVE_FP_PREC 58 59 60 #endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */ 61 62 #endif /* _M68K_IEEEFP_H_ */ 63