xref: /netbsd-src/sys/arch/sun3/include/frame.h (revision cda4f8f6ee55684e8d311b86c99ea59191e6b74f)
1 /*
2  * Copyright (c) 1988 University of Utah.
3  * Copyright (c) 1982, 1990 The Regents of the University of California.
4  * All rights reserved.
5  *
6  * This code is derived from software contributed to Berkeley by
7  * the Systems Programming Group of the University of Utah Computer
8  * Science Department.
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 University of
21  *	California, Berkeley and its contributors.
22  * 4. Neither the name of the University nor the names of its contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  *
38  * from: Utah $Hdr: frame.h 1.1 90/07/09$
39  *
40  *	from: @(#)frame.h	7.2 (Berkeley) 11/2/90
41  *	frame.h,v 1.2 1993/05/22 07:58:21 cgd Exp
42  */
43 
44 struct frame {
45 	int	f_regs[16];
46 	short	f_stackadj;
47 	u_short	f_sr;
48 	u_int	f_pc;
49 	u_short	f_format:4,
50 		f_vector:12;
51 	union F_u {
52 		struct fmt2 {
53 			u_int	f_iaddr;
54 		} F_fmt2;
55 
56 		struct fmt9 {
57 			u_int	f_iaddr;
58 			u_short	f_iregs[4];
59 		} F_fmt9;
60 
61 		struct fmtA {
62 			u_short	f_ir0;
63 			u_short	f_ssw;
64 			u_short	f_ipsc;
65 			u_short	f_ipsb;
66 			u_int	f_dcfa;
67 			u_short	f_ir1, f_ir2;
68 			u_int	f_dob;
69 			u_short	f_ir3, f_ir4;
70 		} F_fmtA;
71 
72 		struct fmtB {
73 			u_short	f_ir0;
74 			u_short	f_ssw;
75 			u_short	f_ipsc;
76 			u_short	f_ipsb;
77 			u_int	f_dcfa;
78 			u_short	f_ir1, f_ir2;
79 			u_int	f_dob;
80 			u_short	f_ir3, f_ir4;
81 			u_short	f_ir5, f_ir6;
82 			u_int	f_sba;
83 			u_short	f_ir7, f_ir8;
84 			u_int	f_dib;
85 			u_short	f_iregs[22];
86 		} F_fmtB;
87 	} F_u;
88 };
89 
90 #define	f_fmt2		F_u.F_fmt2
91 #define	f_fmtA		F_u.F_fmtA
92 #define	f_fmtB		F_u.F_fmtB
93 
94 /* common frame size */
95 #define	CFSIZE		(sizeof(struct frame) - sizeof(union F_u))
96 #define	NFMTSIZE	8
97 
98 #define	FMT0		0x0
99 #define	FMT1		0x1
100 #define	FMT2		0x2
101 #define	FMT9		0x9
102 #define	FMTA		0xA
103 #define	FMTB		0xB
104 
105 /* frame specific info sizes */
106 #define	FMT0SIZE	0
107 #define	FMT1SIZE	0
108 #define	FMT2SIZE	sizeof(struct fmt2)
109 #define	FMT9SIZE	sizeof(struct fmt9)
110 #define	FMTASIZE	sizeof(struct fmtA)
111 #define	FMTBSIZE	sizeof(struct fmtB)
112 
113 #define	V_BUSERR	0x008
114 #define	V_ADDRERR	0x00C
115 #define	V_TRAP1		0x084
116 
117 #define	SSW_RC		0x2000
118 #define	SSW_RB		0x1000
119 #define	SSW_DF		0x0100
120 #define	SSW_RM		0x0080
121 #define	SSW_RW		0x0040
122 #define	SSW_FCMASK	0x0007
123 
124 struct fpframe {
125 	union FPF_u1 {
126 		u_int	FPF_null;
127 		struct {
128 			u_char	FPF_version;
129 			u_char	FPF_fsize;
130 			u_short	FPF_res1;
131 		} FPF_nonnull;
132 	} FPF_u1;
133 	union FPF_u2 {
134 		struct fpidle {
135 			u_short	fpf_ccr;
136 			u_short	fpf_res2;
137 			u_int	fpf_iregs1[8];
138 			u_int	fpf_xops[3];
139 			u_int	fpf_opreg;
140 			u_int	fpf_biu;
141 		} FPF_idle;
142 
143 		struct fpbusy {
144 			u_int	fpf_iregs[53];
145 		} FPF_busy;
146 	} FPF_u2;
147 	u_int	fpf_regs[8*3];
148 	u_int	fpf_fpcr;
149 	u_int	fpf_fpsr;
150 	u_int	fpf_fpiar;
151 };
152 
153 #define fpf_null	FPF_u1.FPF_null
154 #define fpf_version	FPF_u1.FPF_nonnull.FPF_version
155 #define fpf_fsize	FPF_u1.FPF_nonnull.FPF_fsize
156 #define fpf_res1	FPF_u1.FPF_nonnull.FPF_res1
157 #define fpf_idle	FPF_u2.FPF_idle
158 #define fpf_busy	FPF_u2.FPF_busy
159