xref: /netbsd-src/sys/arch/mac68k/include/frame.h (revision 4b30c543a0b21e3ba94f2c569e9a82b4fdb2075f)
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 #ident "$Id: frame.h,v 1.1.1.1 1993/09/29 06:09:23 briggs Exp $"
39 
40 /*
41  * from: Utah $Hdr: frame.h 1.1 90/07/09$
42  *
43  *	@(#)frame.h	7.2 (Berkeley) 11/2/90
44  */
45 
46 struct frame {
47 	int	f_regs[16];
48 	short	f_stackadj;
49 	u_short	f_sr;
50 	u_int	f_pc;
51 	u_short	f_format:4,
52 		f_vector:12;
53 	union F_u {
54 		struct fmt2 {
55 			u_int	f_iaddr;
56 		} F_fmt2;
57 
58 		struct fmt9 {
59 			u_int	f_iaddr;
60 			u_short	f_iregs[4];
61 		} F_fmt9;
62 
63 		struct fmtA {
64 			u_short	f_ir0;
65 			u_short	f_ssw;
66 			u_short	f_ipsc;
67 			u_short	f_ipsb;
68 			u_int	f_dcfa;
69 			u_short	f_ir1, f_ir2;
70 			u_int	f_dob;
71 			u_short	f_ir3, f_ir4;
72 		} F_fmtA;
73 
74 		struct fmtB {
75 			u_short	f_ir0;
76 			u_short	f_ssw;
77 			u_short	f_ipsc;
78 			u_short	f_ipsb;
79 			u_int	f_dcfa;
80 			u_short	f_ir1, f_ir2;
81 			u_int	f_dob;
82 			u_short	f_ir3, f_ir4;
83 			u_short	f_ir5, f_ir6;
84 			u_int	f_sba;
85 			u_short	f_ir7, f_ir8;
86 			u_int	f_dib;
87 			u_short	f_iregs[22];
88 		} F_fmtB;
89 	} F_u;
90 };
91 
92 #define	f_fmt2		F_u.F_fmt2
93 #define	f_fmtA		F_u.F_fmtA
94 #define	f_fmtB		F_u.F_fmtB
95 
96 /* common frame size */
97 #define	CFSIZE		(sizeof(struct frame) - sizeof(union F_u))
98 #define	NFMTSIZE	8
99 
100 #define	FMT0		0x0
101 #define	FMT1		0x1
102 #define	FMT2		0x2
103 #define	FMT9		0x9
104 #define	FMTA		0xA
105 #define	FMTB		0xB
106 
107 /* frame specific info sizes */
108 #define	FMT0SIZE	0
109 #define	FMT1SIZE	0
110 #define	FMT2SIZE	sizeof(struct fmt2)
111 #define	FMT9SIZE	sizeof(struct fmt9)
112 #define	FMTASIZE	sizeof(struct fmtA)
113 #define	FMTBSIZE	sizeof(struct fmtB)
114 
115 #define	V_BUSERR	0x008
116 #define	V_ADDRERR	0x00C
117 #define	V_TRAP1		0x084
118 
119 #define	SSW_RC		0x2000
120 #define	SSW_RB		0x1000
121 #define	SSW_DF		0x0100
122 #define	SSW_RM		0x0080
123 #define	SSW_RW		0x0040
124 #define	SSW_FCMASK	0x0007
125 
126 struct fpframe {
127 	union FPF_u1 {
128 		u_int	FPF_null;
129 		struct {
130 			u_char	FPF_version;
131 			u_char	FPF_fsize;
132 			u_short	FPF_res1;
133 		} FPF_nonnull;
134 	} FPF_u1;
135 	union FPF_u2 {
136 		struct fpidle {
137 			u_short	fpf_ccr;
138 			u_short	fpf_res2;
139 			u_int	fpf_iregs1[8];
140 			u_int	fpf_xops[3];
141 			u_int	fpf_opreg;
142 			u_int	fpf_biu;
143 		} FPF_idle;
144 
145 		struct fpbusy {
146 			u_int	fpf_iregs[53];
147 		} FPF_busy;
148 	} FPF_u2;
149 	u_int	fpf_regs[8*3];
150 	u_int	fpf_fpcr;
151 	u_int	fpf_fpsr;
152 	u_int	fpf_fpiar;
153 };
154 
155 #define fpf_null	FPF_u1.FPF_null
156 #define fpf_version	FPF_u1.FPF_nonnull.FPF_version
157 #define fpf_fsize	FPF_u1.FPF_nonnull.FPF_fsize
158 #define fpf_res1	FPF_u1.FPF_nonnull.FPF_res1
159 #define fpf_idle	FPF_u2.FPF_idle
160 #define fpf_busy	FPF_u2.FPF_busy
161