1/*-
2 * Copyright (c) 2001 Doug Rabson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: releng/10.2/sys/ia64/include/ieeefp.h 226607 2011-10-21 06:41:46Z das $
27 */
28
29#ifndef _MACHINE_IEEEFP_H_
30#define _MACHINE_IEEEFP_H_
31
32/* Deprecated historical FPU control interface */
33
34#include <machine/fpu.h>
35
36typedef int fp_except_t;
37#define	FP_X_INV	IA64_FPSR_TRAP_VD /* invalid operation exception */
38#define	FP_X_DZ		IA64_FPSR_TRAP_ZD /* divide-by-zero exception */
39#define	FP_X_OFL	IA64_FPSR_TRAP_OD /* overflow exception */
40#define	FP_X_UFL	IA64_FPSR_TRAP_UD /* underflow exception */
41#define	FP_X_IMP	IA64_FPSR_TRAP_ID /* imprecise(inexact) exception */
42
43typedef enum {
44	FP_RN = 0,		/* round to nearest */
45	FP_RM,			/* round toward minus infinity */
46	FP_RP,			/* round toward plus infinity */
47	FP_RZ			/* round toward zero */
48} fp_rnd_t;
49
50__BEGIN_DECLS
51extern fp_rnd_t    fpgetround(void);
52extern fp_rnd_t    fpsetround(fp_rnd_t);
53extern fp_except_t fpgetmask(void);
54extern fp_except_t fpsetmask(fp_except_t);
55__END_DECLS
56
57#endif /* !_MACHINE_IEEEFP_H_ */
58