xref: /netbsd-src/sys/arch/mac68k/include/frame.h (revision 38023541164cff097d5fadec63134189b1453b8c)
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 /*
39  * from: Utah $Hdr: frame.h 1.1 90/07/09$
40  *
41  *	from: @(#)frame.h	7.2 (Berkeley) 11/2/90
42  *	$Id: frame.h,v 1.2 1993/11/29 00:38:10 briggs Exp $
43  */
44 
45 struct frame {
46 	int	f_regs[16];
47 	short	f_stackadj;
48 	u_short	f_sr;
49 	u_int	f_pc;
50 	u_short	f_format:4,
51 		f_vector:12;
52 	union F_u {
53 		struct fmt2 {
54 			u_int	f_iaddr;
55 		} F_fmt2;
56 
57 		struct fmt9 {
58 			u_int	f_iaddr;
59 			u_short	f_iregs[4];
60 		} F_fmt9;
61 
62 		struct fmtA {
63 			u_short	f_ir0;
64 			u_short	f_ssw;
65 			u_short	f_ipsc;
66 			u_short	f_ipsb;
67 			u_int	f_dcfa;
68 			u_short	f_ir1, f_ir2;
69 			u_int	f_dob;
70 			u_short	f_ir3, f_ir4;
71 		} F_fmtA;
72 
73 		struct fmtB {
74 			u_short	f_ir0;
75 			u_short	f_ssw;
76 			u_short	f_ipsc;
77 			u_short	f_ipsb;
78 			u_int	f_dcfa;
79 			u_short	f_ir1, f_ir2;
80 			u_int	f_dob;
81 			u_short	f_ir3, f_ir4;
82 			u_short	f_ir5, f_ir6;
83 			u_int	f_sba;
84 			u_short	f_ir7, f_ir8;
85 			u_int	f_dib;
86 			u_short	f_iregs[22];
87 		} F_fmtB;
88 	} F_u;
89 };
90 
91 #define	f_fmt2		F_u.F_fmt2
92 #define	f_fmtA		F_u.F_fmtA
93 #define	f_fmtB		F_u.F_fmtB
94 
95 /* common frame size */
96 #define	CFSIZE		(sizeof(struct frame) - sizeof(union F_u))
97 #define	NFMTSIZE	8
98 
99 #define	FMT0		0x0
100 #define	FMT1		0x1
101 #define	FMT2		0x2
102 #define	FMT9		0x9
103 #define	FMTA		0xA
104 #define	FMTB		0xB
105 
106 /* frame specific info sizes */
107 #define	FMT0SIZE	0
108 #define	FMT1SIZE	0
109 #define	FMT2SIZE	sizeof(struct fmt2)
110 #define	FMT9SIZE	sizeof(struct fmt9)
111 #define	FMTASIZE	sizeof(struct fmtA)
112 #define	FMTBSIZE	sizeof(struct fmtB)
113 
114 #define	V_BUSERR	0x008
115 #define	V_ADDRERR	0x00C
116 #define	V_TRAP1		0x084
117 
118 #define	SSW_RC		0x2000
119 #define	SSW_RB		0x1000
120 #define	SSW_DF		0x0100
121 #define	SSW_RM		0x0080
122 #define	SSW_RW		0x0040
123 #define	SSW_FCMASK	0x0007
124 
125 struct fpframe {
126 	union FPF_u1 {
127 		u_int	FPF_null;
128 		struct {
129 			u_char	FPF_version;
130 			u_char	FPF_fsize;
131 			u_short	FPF_res1;
132 		} FPF_nonnull;
133 	} FPF_u1;
134 	union FPF_u2 {
135 		struct fpidle {
136 			u_short	fpf_ccr;
137 			u_short	fpf_res2;
138 			u_int	fpf_iregs1[8];
139 			u_int	fpf_xops[3];
140 			u_int	fpf_opreg;
141 			u_int	fpf_biu;
142 		} FPF_idle;
143 
144 		struct fpbusy {
145 			u_int	fpf_iregs[53];
146 		} FPF_busy;
147 	} FPF_u2;
148 	u_int	fpf_regs[8*3];
149 	u_int	fpf_fpcr;
150 	u_int	fpf_fpsr;
151 	u_int	fpf_fpiar;
152 };
153 
154 #define fpf_null	FPF_u1.FPF_null
155 #define fpf_version	FPF_u1.FPF_nonnull.FPF_version
156 #define fpf_fsize	FPF_u1.FPF_nonnull.FPF_fsize
157 #define fpf_res1	FPF_u1.FPF_nonnull.FPF_res1
158 #define fpf_idle	FPF_u2.FPF_idle
159 #define fpf_busy	FPF_u2.FPF_busy
160