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a85d7ed0 | 1 | /* s390.h -- Header file for S390 opcode table |
e4e42b45 | 2 | Copyright 2000, 2001, 2003, 2010 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 | |
e4e42b45 | 9 | the Free Software Foundation; either version 3 of the License, or |
a85d7ed0 NC |
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 | |
e172dbf8 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA |
20 | 02110-1301, USA. */ | |
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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 | 37 | S390_OPCODE_Z900, |
8c929562 | 38 | S390_OPCODE_Z990, |
b5639b37 | 39 | S390_OPCODE_Z9_109, |
5746fb46 | 40 | S390_OPCODE_Z9_EC, |
d9aee5d7 AK |
41 | S390_OPCODE_Z10, |
42 | S390_OPCODE_Z196 | |
a85d7ed0 NC |
43 | }; |
44 | ||
45 | /* The opcode table is an array of struct s390_opcode. */ | |
46 | ||
47 | struct s390_opcode | |
48 | { | |
49 | /* The opcode name. */ | |
50 | const char * name; | |
51 | ||
52 | /* The opcode itself. Those bits which will be filled in with | |
53 | operands are zeroes. */ | |
54 | unsigned char opcode[6]; | |
55 | ||
56 | /* The opcode mask. This is used by the disassembler. This is a | |
57 | mask containing ones indicating those bits which must match the | |
58 | opcode field, and zeroes indicating those bits which need not | |
59 | match (and are presumably filled in by operands). */ | |
60 | unsigned char mask[6]; | |
61 | ||
62 | /* The opcode length in bytes. */ | |
63 | int oplen; | |
64 | ||
65 | /* An array of operand codes. Each code is an index into the | |
66 | operand table. They appear in the order which the operands must | |
67 | appear in assembly code, and are terminated by a zero. */ | |
68 | unsigned char operands[6]; | |
69 | ||
1bd490c4 MS |
70 | /* Bitmask of execution modes this opcode is available for. */ |
71 | unsigned int modes; | |
72 | ||
73 | /* First cpu this opcode is available for. */ | |
74 | enum s390_opcode_cpu_val min_cpu; | |
a85d7ed0 NC |
75 | }; |
76 | ||
77 | /* The table itself is sorted by major opcode number, and is otherwise | |
78 | in the order in which the disassembler should consider | |
79 | instructions. */ | |
80 | extern const struct s390_opcode s390_opcodes[]; | |
81 | extern const int s390_num_opcodes; | |
82 | ||
83 | /* A opcode format table for the .insn pseudo mnemonic. */ | |
84 | extern const struct s390_opcode s390_opformats[]; | |
85 | extern const int s390_num_opformats; | |
86 | ||
87 | /* Values defined for the flags field of a struct powerpc_opcode. */ | |
88 | ||
89 | /* The operands table is an array of struct s390_operand. */ | |
90 | ||
91 | struct s390_operand | |
92 | { | |
93 | /* The number of bits in the operand. */ | |
94 | int bits; | |
95 | ||
96 | /* How far the operand is left shifted in the instruction. */ | |
97 | int shift; | |
98 | ||
99 | /* One bit syntax flags. */ | |
100 | unsigned long flags; | |
101 | }; | |
102 | ||
103 | /* Elements in the table are retrieved by indexing with values from | |
104 | the operands field of the powerpc_opcodes table. */ | |
105 | ||
106 | extern const struct s390_operand s390_operands[]; | |
107 | ||
108 | /* Values defined for the flags field of a struct s390_operand. */ | |
109 | ||
110 | /* This operand names a register. The disassembler uses this to print | |
111 | register names with a leading 'r'. */ | |
112 | #define S390_OPERAND_GPR 0x1 | |
113 | ||
114 | /* This operand names a floating point register. The disassembler | |
115 | prints these with a leading 'f'. */ | |
116 | #define S390_OPERAND_FPR 0x2 | |
117 | ||
118 | /* This operand names an access register. The disassembler | |
119 | prints these with a leading 'a'. */ | |
120 | #define S390_OPERAND_AR 0x4 | |
121 | ||
122 | /* This operand names a control register. The disassembler | |
123 | prints these with a leading 'c'. */ | |
124 | #define S390_OPERAND_CR 0x8 | |
125 | ||
126 | /* This operand is a displacement. */ | |
127 | #define S390_OPERAND_DISP 0x10 | |
128 | ||
129 | /* This operand names a base register. */ | |
130 | #define S390_OPERAND_BASE 0x20 | |
131 | ||
132 | /* This operand names an index register, it can be skipped. */ | |
133 | #define S390_OPERAND_INDEX 0x40 | |
134 | ||
135 | /* This operand is a relative branch displacement. The disassembler | |
136 | prints these symbolically if possible. */ | |
137 | #define S390_OPERAND_PCREL 0x80 | |
138 | ||
139 | /* This operand takes signed values. */ | |
140 | #define S390_OPERAND_SIGNED 0x100 | |
141 | ||
142 | /* This operand is a length. */ | |
143 | #define S390_OPERAND_LENGTH 0x200 | |
144 | ||
8c929562 MS |
145 | /* This operand is optional. Only a single operand at the end of |
146 | the instruction may be optional. */ | |
147 | #define S390_OPERAND_OPTIONAL 0x400 | |
148 | ||
149 | #endif /* S390_H */ |