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: head/lib/libc/sparc64/fpu/fpu_extern.h 326193 2017-11-25 17:12:48Z pfg $
33 */
34
35#ifndef _SPARC64_FPU_FPU_EXTERN_H_
36#define _SPARC64_FPU_FPU_EXTERN_H_
37
38#include <stdint.h>
39
40struct utrapframe;
41struct fpemu;
42struct fpn;
43
44/* fpu.c */
45int __fpu_exception(struct utrapframe *tf);
46
47/* fpu_add.c */
48struct fpn *__fpu_add(struct fpemu *);
49
50/* fpu_compare.c */
51void __fpu_compare(struct fpemu *, int, int);
52
53/* fpu_div.c */
54struct fpn *__fpu_div(struct fpemu *);
55
56/* fpu_explode.c */
57int __fpu_itof(struct fpn *, uint32_t);
58int __fpu_xtof(struct fpn *, uint64_t);
59int __fpu_stof(struct fpn *, uint32_t);
60int __fpu_dtof(struct fpn *, uint32_t, uint32_t);
61int __fpu_qtof(struct fpn *, uint32_t, uint32_t, uint32_t, uint32_t);
62void __fpu_explode(struct fpemu *, struct fpn *, int, int);
63
64/* fpu_implode.c */
65uint32_t __fpu_ftoi(struct fpemu *, struct fpn *);
66uint32_t __fpu_ftox(struct fpemu *, struct fpn *, uint32_t *);
67uint32_t __fpu_ftos(struct fpemu *, struct fpn *);
68uint32_t __fpu_ftod(struct fpemu *, struct fpn *, uint32_t *);
69uint32_t __fpu_ftoq(struct fpemu *, struct fpn *, uint32_t *);
70void __fpu_implode(struct fpemu *, struct fpn *, int, uint32_t *);
71
72/* fpu_mul.c */
73struct fpn *__fpu_mul(struct fpemu *);
74
75/* fpu_sqrt.c */
76struct fpn *__fpu_sqrt(struct fpemu *);
77
78/* fpu_subr.c */
79/*
80 * Shift a number right some number of bits, taking care of round/sticky.
81 * Note that the result is probably not a well-formed number (it will lack
82 * the normal 1-bit mant[0]&FP_1).
83 */
84int __fpu_shr(register struct fpn *, register int);
85void __fpu_norm(register struct fpn *);
86/* Build a new Quiet NaN (sign=0, frac=all 1's). */
87struct fpn *__fpu_newnan(register struct fpemu *);
88
89#endif /* !_SPARC64_FPU_FPU_EXTERN_H_ */
90