fpu_extern.h revision 1.2 
1/*	$NetBSD: fpu_extern.h,v 1.2 2003/10/27 04:32:02 simonb Exp $	*/
2
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 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *        This product includes software developed by the NetBSD
21 *        Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 *    contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39struct proc;
40struct fpreg;
41struct trapframe;
42union instr;
43struct fpemu;
44struct fpn;
45
46/* fpu.c */
47int fpu_emulate(struct trapframe *, struct fpreg *);
48int fpu_execute(struct trapframe *, struct fpemu *, union instr *);
49
50/* fpu_add.c */
51struct fpn *fpu_add(struct fpemu *);
52
53/* fpu_compare.c */
54void fpu_compare(struct fpemu *, int);
55
56/* fpu_div.c */
57struct fpn *fpu_div(struct fpemu *);
58
59/* fpu_explode.c */
60int fpu_itof(struct fpn *, u_int);
61int fpu_xtof(struct fpn *, u_int64_t);
62int fpu_stof(struct fpn *, u_int);
63int fpu_dtof(struct fpn *, u_int, u_int);
64void fpu_explode(struct fpemu *, struct fpn *, int, int);
65
66/* fpu_implode.c */
67u_int fpu_ftoi(struct fpemu *, struct fpn *);
68u_int fpu_ftox(struct fpemu *, struct fpn *, u_int *);
69u_int fpu_ftos(struct fpemu *, struct fpn *);
70u_int fpu_ftod(struct fpemu *, struct fpn *, u_int *);
71void fpu_implode(struct fpemu *, struct fpn *, int, u_int *);
72
73/* fpu_mul.c */
74struct fpn *fpu_mul(struct fpemu *);
75
76/* fpu_sqrt.c */
77struct fpn *fpu_sqrt(struct fpemu *);
78
79/* fpu_subr.c */
80int fpu_shr(struct fpn *, int);
81void fpu_norm(struct fpn *);
82struct fpn *fpu_newnan(struct fpemu *);
83