1/* -
2 * Written by J.T. Conklin, Apr 6, 1995
3 * Public domain.
4 * $NetBSD: ieeefp.h,v 1.2 1999/07/07 01:52:26 danw Exp $
5 * $FreeBSD: releng/10.3/sys/powerpc/include/ieeefp.h 226607 2011-10-21 06:41:46Z das $
6 */
7
8#ifndef _MACHINE_IEEEFP_H_
9#define _MACHINE_IEEEFP_H_
10
11/* Deprecated historical FPU control interface */
12
13typedef int fp_except_t;
14#define FP_X_IMP	0x01	/* imprecise (loss of precision) */
15#define FP_X_DZ		0x02	/* divide-by-zero exception */
16#define FP_X_UFL	0x04	/* underflow exception */
17#define FP_X_OFL	0x08	/* overflow exception */
18#define FP_X_INV	0x10	/* invalid operation exception */
19
20typedef enum {
21    FP_RN=0,			/* round to nearest representable number */
22    FP_RZ=1,			/* round to zero (truncate) */
23    FP_RP=2,			/* round toward positive infinity */
24    FP_RM=3			/* round toward negative infinity */
25} fp_rnd_t;
26
27__BEGIN_DECLS
28extern fp_rnd_t    fpgetround(void);
29extern fp_rnd_t    fpsetround(fp_rnd_t);
30extern fp_except_t fpgetmask(void);
31extern fp_except_t fpsetmask(fp_except_t);
32extern fp_except_t fpgetsticky(void);
33__END_DECLS
34
35#endif /* _MACHINE_IEEEFP_H_ */
36