fpu_extern.h revision 1.5 
1/*	$NetBSD: fpu_extern.h,v 1.5 2012/07/23 04:13:06 matt 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 *
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
32#ifndef _POWERPC_FPU_FPU_EXTERN_H_
33#define _POWERPC_FPU_FPU_EXTERN_H_
34
35#include <sys/signal.h>
36#include <sys/siginfo.h>
37
38struct proc;
39struct fpreg;
40struct trapframe;
41union instr;
42struct fpemu;
43struct fpn;
44
45/* fpu.c */
46bool fpu_emulate(struct trapframe *, struct fpreg *, ksiginfo_t *);
47int fpu_execute(struct trapframe *, struct fpemu *, union instr *);
48
49/* fpu_add.c */
50struct fpn *fpu_add(struct fpemu *);
51
52/* fpu_compare.c */
53void fpu_compare(struct fpemu *, int);
54
55/* fpu_div.c */
56struct fpn *fpu_div(struct fpemu *);
57
58/* fpu_explode.c */
59int fpu_itof(struct fpn *, u_int);
60int fpu_xtof(struct fpn *, u_int64_t);
61int fpu_stof(struct fpn *, u_int);
62int fpu_dtof(struct fpn *, u_int, u_int);
63void fpu_explode(struct fpemu *, struct fpn *, int, int);
64
65/* fpu_implode.c */
66u_int fpu_ftoi(struct fpemu *, struct fpn *);
67u_int fpu_ftox(struct fpemu *, struct fpn *, u_int *);
68u_int fpu_ftos(struct fpemu *, struct fpn *);
69u_int fpu_ftod(struct fpemu *, struct fpn *, u_int *);
70void fpu_implode(struct fpemu *, struct fpn *, int, u_int *);
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 */
79int fpu_shr(struct fpn *, int);
80void fpu_norm(struct fpn *);
81struct fpn *fpu_newnan(struct fpemu *);
82
83#endif /* _POWERPC_FPU_FPU_EXTERN_H_ */
84