1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 1995 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 *
31 *	$NetBSD: fpu_extern.h,v 1.4 2000/08/03 18:32:08 eeh Exp $
32 * $FreeBSD$
33 */
34
35#ifndef _SPARC64_FPU_FPU_EXTERN_H_
36#define _SPARC64_FPU_FPU_EXTERN_H_
37
38struct utrapframe;
39struct fpemu;
40struct fpn;
41
42/* fpu.c */
43int __fpu_exception(struct utrapframe *tf);
44
45/* fpu_add.c */
46struct fpn *__fpu_add(struct fpemu *);
47
48/* fpu_compare.c */
49void __fpu_compare(struct fpemu *, int, int);
50
51/* fpu_div.c */
52struct fpn *__fpu_div(struct fpemu *);
53
54/* fpu_explode.c */
55int __fpu_itof(struct fpn *, u_int);
56int __fpu_xtof(struct fpn *, u_int64_t);
57int __fpu_stof(struct fpn *, u_int);
58int __fpu_dtof(struct fpn *, u_int, u_int);
59int __fpu_qtof(struct fpn *, u_int, u_int, u_int, u_int);
60void __fpu_explode(struct fpemu *, struct fpn *, int, int);
61
62/* fpu_implode.c */
63u_int __fpu_ftoi(struct fpemu *, struct fpn *);
64u_int __fpu_ftox(struct fpemu *, struct fpn *, u_int *);
65u_int __fpu_ftos(struct fpemu *, struct fpn *);
66u_int __fpu_ftod(struct fpemu *, struct fpn *, u_int *);
67u_int __fpu_ftoq(struct fpemu *, struct fpn *, u_int *);
68void __fpu_implode(struct fpemu *, struct fpn *, int, u_int *);
69
70/* fpu_mul.c */
71struct fpn *__fpu_mul(struct fpemu *);
72
73/* fpu_sqrt.c */
74struct fpn *__fpu_sqrt(struct fpemu *);
75
76/* fpu_subr.c */
77/*
78 * Shift a number right some number of bits, taking care of round/sticky.
79 * Note that the result is probably not a well-formed number (it will lack
80 * the normal 1-bit mant[0]&FP_1).
81 */
82int __fpu_shr(register struct fpn *, register int);
83void __fpu_norm(register struct fpn *);
84/* Build a new Quiet NaN (sign=0, frac=all 1's). */
85struct fpn *__fpu_newnan(register struct fpemu *);
86
87#endif /* !_SPARC64_FPU_FPU_EXTERN_H_ */
88