1 /* $NetBSD: ieeefp.h,v 1.11 2023/09/26 12:46:30 tsutsui 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 #include <m68k/fenv.h> 17 18 #if !defined(_ISOC99_SOURCE) 19 20 typedef int fp_except; 21 22 /* adjust for FP_* and FE_* value differences */ 23 #define __FPE(x) ((x) >> 3) 24 #define __FEE(x) ((x) << 3) 25 #define __FPR(x) ((x) >> 4) 26 #define __FER(x) ((x) << 4) 27 28 #define FP_X_IMP __FPE(FE_INEXACT) /* imprecise (loss of precision) */ 29 #define FP_X_DZ __FPE(FE_DIVBYZERO) /* divide-by-zero exception */ 30 #define FP_X_UFL __FPE(FE_UNDERFLOW) /* underflow exception */ 31 #define FP_X_OFL __FPE(FE_OVERFLOW) /* overflow exception */ 32 #define FP_X_INV __FPE(FE_INVALID) /* invalid operation exception */ 33 34 typedef enum { 35 FP_RN=__FPR(FE_TONEAREST), /* round to nearest representable number */ 36 FP_RZ=__FPR(FE_TOWARDZERO), /* round to zero (truncate) */ 37 FP_RM=__FPR(FE_DOWNWARD), /* round toward negative infinity */ 38 FP_RP=__FPR(FE_UPWARD) /* round toward positive infinity */ 39 } fp_rnd; 40 41 typedef enum { 42 FP_PE=0, /* extended-precision (64-bit) */ 43 FP_PS=1, /* single-precision (24-bit) */ 44 FP_PD=2 /* double-precision (53-bit) */ 45 } fp_prec; 46 47 #endif /* !_ISOC99_SOURCE */ 48 49 #define __HAVE_FP_PREC 50 51 #endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */ 52 53 #endif /* _M68K_IEEEFP_H_ */ 54