xref: /netbsd/sys/arch/sparc/fpu/fpu_extern.h (revision 6550d01e)
1 /*	$NetBSD: fpu_extern.h,v 1.9 2008/04/28 20:23:36 martin 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 
36 struct proc;
37 #ifndef SUN4U
38 struct fpstate;
39 struct trapframe;
40 #else /* SUN4U */
41 struct fpstate64;
42 struct trapframe64;
43 #endif /* SUN4U */
44 union instr;
45 struct fpemu;
46 struct fpn;
47 
48 /* fpu.c */
49 #ifndef SUN4U
50 int fpu_cleanup(struct lwp *, struct fpstate *);
51 int fpu_emulate(struct lwp *, struct trapframe *, struct fpstate *);
52 #else /* SUN4U */
53 int fpu_cleanup(struct lwp *, struct fpstate64 *);
54 int fpu_emulate(struct lwp *, struct trapframe64 *, struct fpstate64 *);
55 #endif /* SUN4U */
56 int fpu_execute(struct fpemu *, union instr);
57 
58 /* fpu_add.c */
59 struct fpn *fpu_add(struct fpemu *);
60 
61 /* fpu_compare.c */
62 void fpu_compare(struct fpemu *, int);
63 
64 /* fpu_div.c */
65 struct fpn *fpu_div(struct fpemu *);
66 
67 /* fpu_explode.c */
68 int fpu_itof(struct fpn *, u_int);
69 #ifdef SUN4U
70 int fpu_xtof(struct fpn *, uint64_t);
71 #endif /* SUN4U */
72 int fpu_stof(struct fpn *, u_int);
73 int fpu_dtof(struct fpn *, u_int, u_int );
74 int fpu_qtof(struct fpn *, u_int, u_int , u_int , u_int );
75 void fpu_explode(struct fpemu *, struct fpn *, int, int );
76 
77 /* fpu_implode.c */
78 u_int fpu_ftoi(struct fpemu *, struct fpn *);
79 #ifdef SUN4U
80 u_int fpu_ftox(struct fpemu *, struct fpn *, u_int *);
81 #endif /* SUN4U */
82 u_int fpu_ftos(struct fpemu *, struct fpn *);
83 u_int fpu_ftod(struct fpemu *, struct fpn *, u_int *);
84 u_int fpu_ftoq(struct fpemu *, struct fpn *, u_int *);
85 void fpu_implode(struct fpemu *, struct fpn *, int, u_int *);
86 
87 /* fpu_mul.c */
88 struct fpn *fpu_mul(struct fpemu *);
89 
90 /* fpu_sqrt.c */
91 struct fpn *fpu_sqrt(struct fpemu *);
92 
93 /* fpu_subr.c */
94 int fpu_shr(register struct fpn *, register int);
95 void fpu_norm(register struct fpn *);
96 struct fpn *fpu_newnan(register struct fpemu *);
97