1/*	$NetBSD: ieeefp.h,v 1.10 2017/03/22 23:11:09 chs 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_ */