include/opcode/s390.h

   1 /* s390.h -- Header file for S390 opcode table
   2    Copyright (C) 2000-2021 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_Z13,
  45     S390_OPCODE_ARCH12,
  46     S390_OPCODE_ARCH13,
  47     S390_OPCODE_MAXCPU
  48   };
  49
  50 /* Instruction specific flags.  */
  51 #define S390_INSTR_FLAG_OPTPARM 0x1
  52 #define S390_INSTR_FLAG_OPTPARM2 0x2
  53
  54 #define S390_INSTR_FLAG_HTM 0x4
  55 #define S390_INSTR_FLAG_VX 0x8
  56 #define S390_INSTR_FLAG_FACILITY_MASK 0xc
  57
  58 /* The opcode table is an array of struct s390_opcode.  */
  59
  60 struct s390_opcode
  61   {
  62     /* The opcode name.  */
  63     const char * name;
  64
  65     /* The opcode itself.  Those bits which will be filled in with
  66        operands are zeroes.  */
  67     unsigned char opcode[6];
  68
  69     /* The opcode mask.  This is used by the disassembler.  This is a
  70        mask containing ones indicating those bits which must match the
  71        opcode field, and zeroes indicating those bits which need not
  72        match (and are presumably filled in by operands).  */
  73     unsigned char mask[6];
  74
  75     /* The opcode length in bytes. */
  76     int oplen;
  77
  78     /* An array of operand codes.  Each code is an index into the
  79        operand table.  They appear in the order which the operands must
  80        appear in assembly code, and are terminated by a zero.  */
  81     unsigned char operands[6];
  82
  83     /* Bitmask of execution modes this opcode is available for.  */
  84     unsigned int modes;
  85
  86     /* First cpu this opcode is available for.  */
  87     enum s390_opcode_cpu_val min_cpu;
  88
  89     /* Instruction specific flags.  */
  90     unsigned int flags;
  91   };
  92
  93 /* The table itself is sorted by major opcode number, and is otherwise
  94    in the order in which the disassembler should consider
  95    instructions.  */
  96 extern const struct s390_opcode s390_opcodes[];
  97 extern const int                s390_num_opcodes;
  98
  99 /* A opcode format table for the .insn pseudo mnemonic.  */
 100 extern const struct s390_opcode s390_opformats[];
 101 extern const int                s390_num_opformats;
 102
 103 /* Values defined for the flags field of a struct s390_opcode.  */
 104
 105 /* The operands table is an array of struct s390_operand.  */
 106
 107 struct s390_operand
 108   {
 109     /* The number of bits in the operand.  */
 110     int bits;
 111
 112     /* How far the operand is left shifted in the instruction.  */
 113     int shift;
 114
 115     /* One bit syntax flags.  */
 116     unsigned long flags;
 117   };
 118
 119 /* Elements in the table are retrieved by indexing with values from
 120    the operands field of the s390_opcodes table.  */
 121
 122 extern const struct s390_operand s390_operands[];
 123
 124 /* Values defined for the flags field of a struct s390_operand.  */
 125
 126 /* This operand names a register.  The disassembler uses this to print
 127    register names with a leading 'r'.  */
 128 #define S390_OPERAND_GPR 0x1
 129
 130 /* This operand names a floating point register.  The disassembler
 131    prints these with a leading 'f'. */
 132 #define S390_OPERAND_FPR 0x2
 133
 134 /* This operand names an access register.  The disassembler
 135    prints these with a leading 'a'.  */
 136 #define S390_OPERAND_AR 0x4
 137
 138 /* This operand names a control register.  The disassembler
 139    prints these with a leading 'c'.  */
 140 #define S390_OPERAND_CR 0x8
 141
 142 /* This operand is a displacement.  */
 143 #define S390_OPERAND_DISP 0x10
 144
 145 /* This operand names a base register.  */
 146 #define S390_OPERAND_BASE 0x20
 147
 148 /* This operand names an index register, it can be skipped.  */
 149 #define S390_OPERAND_INDEX 0x40
 150
 151 /* This operand is a relative branch displacement.  The disassembler
 152    prints these symbolically if possible.  */
 153 #define S390_OPERAND_PCREL 0x80
 154
 155 /* This operand takes signed values.  */
 156 #define S390_OPERAND_SIGNED 0x100
 157
 158 /* This operand is a length.  */
 159 #define S390_OPERAND_LENGTH 0x200
 160
 161 /* The operand needs to be a valid GP or FP register pair.  */
 162 #define S390_OPERAND_REG_PAIR 0x400
 163
 164 /* This operand names a vector register.  The disassembler uses this
 165    to print register names with a leading 'v'.  */
 166 #define S390_OPERAND_VR 0x800
 167
 168 #define S390_OPERAND_CP16 0x1000
 169
 170 #define S390_OPERAND_OR1 0x2000
 171 #define S390_OPERAND_OR2 0x4000
 172 #define S390_OPERAND_OR8 0x8000
 173
 174 #endif /* S390_H */