Commit | Line | Data |
---|---|---|
a85d7ed0 | 1 | /* s390.h -- Header file for S390 opcode table |
4f1d9bd8 | 2 | Copyright 2000, 2001 Free Software Foundation, Inc. |
a85d7ed0 NC |
3 | Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). |
4 | ||
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
21 | ||
22 | #ifndef S390_H | |
23 | #define S390_H | |
24 | ||
25 | /* List of instruction sets variations. */ | |
26 | ||
1bd490c4 | 27 | enum s390_opcode_mode_val |
a85d7ed0 NC |
28 | { |
29 | S390_OPCODE_ESA = 0, | |
1bd490c4 MS |
30 | S390_OPCODE_ZARCH |
31 | }; | |
32 | ||
33 | enum s390_opcode_cpu_val | |
34 | { | |
35 | S390_OPCODE_G5 = 0, | |
36 | S390_OPCODE_G6, | |
c72a8f69 MS |
37 | S390_OPCODE_Z900, |
38 | S390_OPCODE_Z990 | |
a85d7ed0 NC |
39 | }; |
40 | ||
41 | /* The opcode table is an array of struct s390_opcode. */ | |
42 | ||
43 | struct s390_opcode | |
44 | { | |
45 | /* The opcode name. */ | |
46 | const char * name; | |
47 | ||
48 | /* The opcode itself. Those bits which will be filled in with | |
49 | operands are zeroes. */ | |
50 | unsigned char opcode[6]; | |
51 | ||
52 | /* The opcode mask. This is used by the disassembler. This is a | |
53 | mask containing ones indicating those bits which must match the | |
54 | opcode field, and zeroes indicating those bits which need not | |
55 | match (and are presumably filled in by operands). */ | |
56 | unsigned char mask[6]; | |
57 | ||
58 | /* The opcode length in bytes. */ | |
59 | int oplen; | |
60 | ||
61 | /* An array of operand codes. Each code is an index into the | |
62 | operand table. They appear in the order which the operands must | |
63 | appear in assembly code, and are terminated by a zero. */ | |
64 | unsigned char operands[6]; | |
65 | ||
1bd490c4 MS |
66 | /* Bitmask of execution modes this opcode is available for. */ |
67 | unsigned int modes; | |
68 | ||
69 | /* First cpu this opcode is available for. */ | |
70 | enum s390_opcode_cpu_val min_cpu; | |
a85d7ed0 NC |
71 | }; |
72 | ||
73 | /* The table itself is sorted by major opcode number, and is otherwise | |
74 | in the order in which the disassembler should consider | |
75 | instructions. */ | |
76 | extern const struct s390_opcode s390_opcodes[]; | |
77 | extern const int s390_num_opcodes; | |
78 | ||
79 | /* A opcode format table for the .insn pseudo mnemonic. */ | |
80 | extern const struct s390_opcode s390_opformats[]; | |
81 | extern const int s390_num_opformats; | |
82 | ||
83 | /* Values defined for the flags field of a struct powerpc_opcode. */ | |
84 | ||
85 | /* The operands table is an array of struct s390_operand. */ | |
86 | ||
87 | struct s390_operand | |
88 | { | |
89 | /* The number of bits in the operand. */ | |
90 | int bits; | |
91 | ||
92 | /* How far the operand is left shifted in the instruction. */ | |
93 | int shift; | |
94 | ||
95 | /* One bit syntax flags. */ | |
96 | unsigned long flags; | |
97 | }; | |
98 | ||
99 | /* Elements in the table are retrieved by indexing with values from | |
100 | the operands field of the powerpc_opcodes table. */ | |
101 | ||
102 | extern const struct s390_operand s390_operands[]; | |
103 | ||
104 | /* Values defined for the flags field of a struct s390_operand. */ | |
105 | ||
106 | /* This operand names a register. The disassembler uses this to print | |
107 | register names with a leading 'r'. */ | |
108 | #define S390_OPERAND_GPR 0x1 | |
109 | ||
110 | /* This operand names a floating point register. The disassembler | |
111 | prints these with a leading 'f'. */ | |
112 | #define S390_OPERAND_FPR 0x2 | |
113 | ||
114 | /* This operand names an access register. The disassembler | |
115 | prints these with a leading 'a'. */ | |
116 | #define S390_OPERAND_AR 0x4 | |
117 | ||
118 | /* This operand names a control register. The disassembler | |
119 | prints these with a leading 'c'. */ | |
120 | #define S390_OPERAND_CR 0x8 | |
121 | ||
122 | /* This operand is a displacement. */ | |
123 | #define S390_OPERAND_DISP 0x10 | |
124 | ||
125 | /* This operand names a base register. */ | |
126 | #define S390_OPERAND_BASE 0x20 | |
127 | ||
128 | /* This operand names an index register, it can be skipped. */ | |
129 | #define S390_OPERAND_INDEX 0x40 | |
130 | ||
131 | /* This operand is a relative branch displacement. The disassembler | |
132 | prints these symbolically if possible. */ | |
133 | #define S390_OPERAND_PCREL 0x80 | |
134 | ||
135 | /* This operand takes signed values. */ | |
136 | #define S390_OPERAND_SIGNED 0x100 | |
137 | ||
138 | /* This operand is a length. */ | |
139 | #define S390_OPERAND_LENGTH 0x200 | |
140 | ||
141 | #endif /* S390_H */ |