1/*	$NetBSD: fpu_extern.h,v 1.8 2005/11/16 23:24:44 uwe 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#if defined(_KERNEL_OPT)
33#include "opt_sparc_arch.h"
34#endif
35
36struct proc;
37#ifndef SUN4U
38struct fpstate;
39struct trapframe;
40#else /* SUN4U */
41struct fpstate64;
42struct trapframe64;
43#endif /* SUN4U */
44union instr;
45struct fpemu;
46struct fpn;
47
48/* fpu.c */
49#ifndef SUN4U
50int fpu_cleanup(struct lwp *, struct fpstate *);
51int fpu_emulate(struct lwp *, struct trapframe *, struct fpstate *);
52#else /* SUN4U */
53int fpu_cleanup(struct lwp *, struct fpstate64 *);
54int fpu_emulate(struct lwp *, struct trapframe64 *, struct fpstate64 *);
55#endif /* SUN4U */
56int fpu_execute(struct fpemu *, union instr);
57
58/* fpu_add.c */
59struct fpn *fpu_add(struct fpemu *);
60
61/* fpu_compare.c */
62void fpu_compare(struct fpemu *, int);
63
64/* fpu_div.c */
65struct fpn *fpu_div(struct fpemu *);
66
67/* fpu_explode.c */
68int fpu_itof(struct fpn *, u_int);
69#ifdef SUN4U
70int fpu_xtof(struct fpn *, uint64_t);
71#endif /* SUN4U */
72int fpu_stof(struct fpn *, u_int);
73int fpu_dtof(struct fpn *, u_int, u_int );
74int fpu_qtof(struct fpn *, u_int, u_int , u_int , u_int );
75void fpu_explode(struct fpemu *, struct fpn *, int, int );
76
77/* fpu_implode.c */
78u_int fpu_ftoi(struct fpemu *, struct fpn *);
79#ifdef SUN4U
80u_int fpu_ftox(struct fpemu *, struct fpn *, u_int *);
81#endif /* SUN4U */
82u_int fpu_ftos(struct fpemu *, struct fpn *);
83u_int fpu_ftod(struct fpemu *, struct fpn *, u_int *);
84u_int fpu_ftoq(struct fpemu *, struct fpn *, u_int *);
85void fpu_implode(struct fpemu *, struct fpn *, int, u_int *);
86
87/* fpu_mul.c */
88struct fpn *fpu_mul(struct fpemu *);
89
90/* fpu_sqrt.c */
91struct fpn *fpu_sqrt(struct fpemu *);
92
93/* fpu_subr.c */
94int fpu_shr(register struct fpn *, register int);
95void fpu_norm(register struct fpn *);
96struct fpn *fpu_newnan(register struct fpemu *);
97