| 1 | /* s390.h -- Header file for S390 opcode table |
| 2 | Copyright (C) 2000-2015 Free Software Foundation, Inc. |
| 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 3 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., 51 Franklin Street - Fifth Floor, Boston, MA |
| 20 | 02110-1301, USA. */ |
| 21 | |
| 22 | #ifndef S390_H |
| 23 | #define S390_H |
| 24 | |
| 25 | /* List of instruction sets variations. */ |
| 26 | |
| 27 | enum s390_opcode_mode_val |
| 28 | { |
| 29 | S390_OPCODE_ESA = 0, |
| 30 | S390_OPCODE_ZARCH |
| 31 | }; |
| 32 | |
| 33 | enum s390_opcode_cpu_val |
| 34 | { |
| 35 | S390_OPCODE_G5 = 0, |
| 36 | S390_OPCODE_G6, |
| 37 | S390_OPCODE_Z900, |
| 38 | S390_OPCODE_Z990, |
| 39 | S390_OPCODE_Z9_109, |
| 40 | S390_OPCODE_Z9_EC, |
| 41 | S390_OPCODE_Z10, |
| 42 | S390_OPCODE_Z196, |
| 43 | S390_OPCODE_ZEC12, |
| 44 | S390_OPCODE_MAXCPU |
| 45 | }; |
| 46 | |
| 47 | /* The opcode table is an array of struct s390_opcode. */ |
| 48 | |
| 49 | struct s390_opcode |
| 50 | { |
| 51 | /* The opcode name. */ |
| 52 | const char * name; |
| 53 | |
| 54 | /* The opcode itself. Those bits which will be filled in with |
| 55 | operands are zeroes. */ |
| 56 | unsigned char opcode[6]; |
| 57 | |
| 58 | /* The opcode mask. This is used by the disassembler. This is a |
| 59 | mask containing ones indicating those bits which must match the |
| 60 | opcode field, and zeroes indicating those bits which need not |
| 61 | match (and are presumably filled in by operands). */ |
| 62 | unsigned char mask[6]; |
| 63 | |
| 64 | /* The opcode length in bytes. */ |
| 65 | int oplen; |
| 66 | |
| 67 | /* An array of operand codes. Each code is an index into the |
| 68 | operand table. They appear in the order which the operands must |
| 69 | appear in assembly code, and are terminated by a zero. */ |
| 70 | unsigned char operands[6]; |
| 71 | |
| 72 | /* Bitmask of execution modes this opcode is available for. */ |
| 73 | unsigned int modes; |
| 74 | |
| 75 | /* First cpu this opcode is available for. */ |
| 76 | enum s390_opcode_cpu_val min_cpu; |
| 77 | }; |
| 78 | |
| 79 | /* The table itself is sorted by major opcode number, and is otherwise |
| 80 | in the order in which the disassembler should consider |
| 81 | instructions. */ |
| 82 | extern const struct s390_opcode s390_opcodes[]; |
| 83 | extern const int s390_num_opcodes; |
| 84 | |
| 85 | /* A opcode format table for the .insn pseudo mnemonic. */ |
| 86 | extern const struct s390_opcode s390_opformats[]; |
| 87 | extern const int s390_num_opformats; |
| 88 | |
| 89 | /* Values defined for the flags field of a struct powerpc_opcode. */ |
| 90 | |
| 91 | /* The operands table is an array of struct s390_operand. */ |
| 92 | |
| 93 | struct s390_operand |
| 94 | { |
| 95 | /* The number of bits in the operand. */ |
| 96 | int bits; |
| 97 | |
| 98 | /* How far the operand is left shifted in the instruction. */ |
| 99 | int shift; |
| 100 | |
| 101 | /* One bit syntax flags. */ |
| 102 | unsigned long flags; |
| 103 | }; |
| 104 | |
| 105 | /* Elements in the table are retrieved by indexing with values from |
| 106 | the operands field of the powerpc_opcodes table. */ |
| 107 | |
| 108 | extern const struct s390_operand s390_operands[]; |
| 109 | |
| 110 | /* Values defined for the flags field of a struct s390_operand. */ |
| 111 | |
| 112 | /* This operand names a register. The disassembler uses this to print |
| 113 | register names with a leading 'r'. */ |
| 114 | #define S390_OPERAND_GPR 0x1 |
| 115 | |
| 116 | /* This operand names a floating point register. The disassembler |
| 117 | prints these with a leading 'f'. */ |
| 118 | #define S390_OPERAND_FPR 0x2 |
| 119 | |
| 120 | /* This operand names an access register. The disassembler |
| 121 | prints these with a leading 'a'. */ |
| 122 | #define S390_OPERAND_AR 0x4 |
| 123 | |
| 124 | /* This operand names a control register. The disassembler |
| 125 | prints these with a leading 'c'. */ |
| 126 | #define S390_OPERAND_CR 0x8 |
| 127 | |
| 128 | /* This operand is a displacement. */ |
| 129 | #define S390_OPERAND_DISP 0x10 |
| 130 | |
| 131 | /* This operand names a base register. */ |
| 132 | #define S390_OPERAND_BASE 0x20 |
| 133 | |
| 134 | /* This operand names an index register, it can be skipped. */ |
| 135 | #define S390_OPERAND_INDEX 0x40 |
| 136 | |
| 137 | /* This operand is a relative branch displacement. The disassembler |
| 138 | prints these symbolically if possible. */ |
| 139 | #define S390_OPERAND_PCREL 0x80 |
| 140 | |
| 141 | /* This operand takes signed values. */ |
| 142 | #define S390_OPERAND_SIGNED 0x100 |
| 143 | |
| 144 | /* This operand is a length. */ |
| 145 | #define S390_OPERAND_LENGTH 0x200 |
| 146 | |
| 147 | /* This operand is optional. Only a single operand at the end of |
| 148 | the instruction may be optional. */ |
| 149 | #define S390_OPERAND_OPTIONAL 0x400 |
| 150 | |
| 151 | /* The operand needs to be a valid GP or FP register pair. */ |
| 152 | #define S390_OPERAND_REG_PAIR 0x800 |
| 153 | |
| 154 | #endif /* S390_H */ |