fpu_extern.h revision 256281 
1/*-
2 * Copyright (c) 1995 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Christos Zoulas.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 *
29 *	$NetBSD: fpu_extern.h,v 1.4 2000/08/03 18:32:08 eeh Exp $
30 * $FreeBSD: stable/10/lib/libc/sparc64/fpu/fpu_extern.h 205393 2010-03-20 21:04:47Z marius $
31 */
32
33#ifndef _SPARC64_FPU_FPU_EXTERN_H_
34#define _SPARC64_FPU_FPU_EXTERN_H_
35
36struct utrapframe;
37struct fpemu;
38struct fpn;
39
40/* fpu.c */
41int __fpu_exception(struct utrapframe *tf);
42
43/* fpu_add.c */
44struct fpn *__fpu_add(struct fpemu *);
45
46/* fpu_compare.c */
47void __fpu_compare(struct fpemu *, int, int);
48
49/* fpu_div.c */
50struct fpn *__fpu_div(struct fpemu *);
51
52/* fpu_explode.c */
53int __fpu_itof(struct fpn *, u_int);
54int __fpu_xtof(struct fpn *, u_int64_t);
55int __fpu_stof(struct fpn *, u_int);
56int __fpu_dtof(struct fpn *, u_int, u_int);
57int __fpu_qtof(struct fpn *, u_int, u_int, u_int, u_int);
58void __fpu_explode(struct fpemu *, struct fpn *, int, int);
59
60/* fpu_implode.c */
61u_int __fpu_ftoi(struct fpemu *, struct fpn *);
62u_int __fpu_ftox(struct fpemu *, struct fpn *, u_int *);
63u_int __fpu_ftos(struct fpemu *, struct fpn *);
64u_int __fpu_ftod(struct fpemu *, struct fpn *, u_int *);
65u_int __fpu_ftoq(struct fpemu *, struct fpn *, u_int *);
66void __fpu_implode(struct fpemu *, struct fpn *, int, u_int *);
67
68/* fpu_mul.c */
69struct fpn *__fpu_mul(struct fpemu *);
70
71/* fpu_sqrt.c */
72struct fpn *__fpu_sqrt(struct fpemu *);
73
74/* fpu_subr.c */
75/*
76 * Shift a number right some number of bits, taking care of round/sticky.
77 * Note that the result is probably not a well-formed number (it will lack
78 * the normal 1-bit mant[0]&FP_1).
79 */
80int __fpu_shr(register struct fpn *, register int);
81void __fpu_norm(register struct fpn *);
82/* Build a new Quiet NaN (sign=0, frac=all 1's). */
83struct fpn *__fpu_newnan(register struct fpemu *);
84
85#endif /* !_SPARC64_FPU_FPU_EXTERN_H_ */
86