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
20typedef 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
34typedef 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
41typedef 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_ */