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75110a6f JG |
1 | /* Intel i860 opcode structures for GDB, the GNU debugger. |
2 | Copyright status of this module is unclear!!! | |
be9a2362 | 3 | Copyright (C) 1992 Free Software Foundation, Inc. |
75110a6f | 4 | SVR4 changes Contributed by Peggy Fieland (pfieland@stratus.com) |
be9a2362 FF |
5 | |
6 | GDB is distributed in the hope that it will be useful, but WITHOUT ANY | |
7 | WARRANTY. No author or distributor accepts responsibility to anyone | |
8 | for the consequences of using it or for whether it serves any | |
9 | particular purpose or works at all, unless he says so in writing. | |
10 | Refer to the GDB General Public License for full details. | |
11 | ||
12 | Everyone is granted permission to copy, modify and redistribute GDB, | |
13 | but only under the conditions described in the GDB General Public | |
14 | License. A copy of this license is supposed to have been given to you | |
15 | along with GDB so you can know your rights and responsibilities. It | |
16 | should be in a file named COPYING. Among other things, the copyright | |
17 | notice and this notice must be preserved on all copies. | |
18 | ||
19 | In other words, go ahead and share GDB, but don't try to stop | |
20 | anyone else from sharing it farther. Help stamp out software hoarding! | |
21 | */ | |
22 | ||
23 | #ifdef BIG_ENDIAN | |
24 | struct gen_fmt | |
25 | { | |
26 | unsigned op1 : 6; | |
27 | unsigned src2 : 5; | |
28 | unsigned dest : 5; | |
29 | unsigned src1 : 5; | |
30 | unsigned offset : 11; | |
31 | }; | |
32 | ||
33 | struct geni_fmt | |
34 | { | |
35 | unsigned op1 : 6; | |
36 | unsigned src2 : 5; | |
37 | unsigned dest : 5; | |
38 | unsigned offset : 16; | |
39 | }; | |
40 | ||
41 | struct esc_fmt | |
42 | { | |
43 | unsigned op1 : 6; | |
44 | unsigned res1 : 10; | |
45 | unsigned src1 : 5; | |
46 | unsigned res2 : 6; | |
47 | unsigned op2 : 5; | |
48 | }; | |
49 | struct ctrl_fmt | |
50 | { | |
51 | unsigned op1 : 6; | |
52 | unsigned int offset : 26; | |
53 | }; | |
54 | ||
55 | struct fp_fmt | |
56 | { | |
57 | unsigned op1 : 6; | |
58 | unsigned src2 : 5; | |
59 | unsigned dest : 5; | |
60 | unsigned src1 : 5; | |
61 | unsigned p : 1; | |
62 | unsigned d : 1; | |
63 | unsigned s : 1; | |
64 | unsigned r : 1; | |
65 | unsigned op2 : 7; | |
66 | }; | |
67 | ||
68 | union insn_fmt | |
69 | { | |
70 | struct gen_fmt gen; | |
71 | struct geni_fmt geni; | |
72 | struct esc_fmt esc; | |
73 | struct ctrl_fmt ctrl; | |
74 | struct fp_fmt fp; | |
75 | long int_val; | |
76 | }; | |
77 | #else | |
78 | struct gen_fmt | |
79 | { | |
80 | unsigned offset : 11; | |
81 | unsigned src1 : 5; | |
82 | unsigned dest : 5; | |
83 | unsigned src2 : 5; | |
84 | unsigned op1 : 6; | |
85 | }; | |
86 | ||
87 | struct geni_fmt | |
88 | { | |
89 | unsigned offset : 16; | |
90 | unsigned dest : 5; | |
91 | unsigned src2 : 5; | |
92 | unsigned op1 : 6; | |
93 | }; | |
94 | ||
95 | struct esc_fmt | |
96 | { | |
97 | unsigned op2 : 5; | |
98 | unsigned res2 : 6; | |
99 | unsigned src1 : 5; | |
100 | unsigned res1 : 10; | |
101 | unsigned op1 : 6; | |
102 | }; | |
103 | struct ctrl_fmt | |
104 | { | |
105 | unsigned int offset : 26; | |
106 | unsigned op1 : 6; | |
107 | }; | |
108 | ||
109 | struct fp_fmt | |
110 | { | |
111 | unsigned op2 : 7; | |
112 | unsigned r : 1; | |
113 | unsigned s : 1; | |
114 | unsigned d : 1; | |
115 | unsigned p : 1; | |
116 | unsigned src1 : 5; | |
117 | unsigned dest : 5; | |
118 | unsigned src2 : 5; | |
119 | unsigned op1 : 6; | |
120 | }; | |
121 | ||
122 | union insn_fmt | |
123 | { | |
124 | struct gen_fmt gen; | |
125 | struct geni_fmt geni; | |
126 | struct esc_fmt esc; | |
127 | struct ctrl_fmt ctrl; | |
128 | struct fp_fmt fp; | |
129 | long int_val; | |
130 | }; | |
131 | #endif | |
132 | ||
133 | typedef enum | |
134 | { | |
135 | Error, not_branch, uncond, uncond_d, cond, cond_d | |
136 | } branch_type; | |
137 | ||
138 |