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Diffstat (limited to 'include/opcode/s390.h')
| -rw-r--r-- | include/opcode/s390.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/include/opcode/s390.h b/include/opcode/s390.h new file mode 100644 index 000000000..8a7c00eff --- /dev/null +++ b/include/opcode/s390.h @@ -0,0 +1,130 @@ +/* s390.h -- Header file for S390 opcode table + Copyright (C) 2000, 2001 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + + This file is part of BFD, the Binary File Descriptor library. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. */ + +#ifndef S390_H +#define S390_H + +/* List of instruction sets variations. */ + +enum s390_opcode_arch_val + { + S390_OPCODE_ESA = 0, + S390_OPCODE_ESAME + }; + +/* The opcode table is an array of struct s390_opcode. */ + +struct s390_opcode + { + /* The opcode name. */ + const char * name; + + /* The opcode itself. Those bits which will be filled in with + operands are zeroes. */ + unsigned char opcode[6]; + + /* The opcode mask. This is used by the disassembler. This is a + mask containing ones indicating those bits which must match the + opcode field, and zeroes indicating those bits which need not + match (and are presumably filled in by operands). */ + unsigned char mask[6]; + + /* The opcode length in bytes. */ + int oplen; + + /* An array of operand codes. Each code is an index into the + operand table. They appear in the order which the operands must + appear in assembly code, and are terminated by a zero. */ + unsigned char operands[6]; + + /* Bitmask of architectures this opcode is available for. */ + unsigned int architecture; + }; + +/* The table itself is sorted by major opcode number, and is otherwise + in the order in which the disassembler should consider + instructions. */ +extern const struct s390_opcode s390_opcodes[]; +extern const int s390_num_opcodes; + +/* A opcode format table for the .insn pseudo mnemonic. */ +extern const struct s390_opcode s390_opformats[]; +extern const int s390_num_opformats; + +/* Values defined for the flags field of a struct powerpc_opcode. */ + +/* The operands table is an array of struct s390_operand. */ + +struct s390_operand + { + /* The number of bits in the operand. */ + int bits; + + /* How far the operand is left shifted in the instruction. */ + int shift; + + /* One bit syntax flags. */ + unsigned long flags; + }; + +/* Elements in the table are retrieved by indexing with values from + the operands field of the powerpc_opcodes table. */ + +extern const struct s390_operand s390_operands[]; + +/* Values defined for the flags field of a struct s390_operand. */ + +/* This operand names a register. The disassembler uses this to print + register names with a leading 'r'. */ +#define S390_OPERAND_GPR 0x1 + +/* This operand names a floating point register. The disassembler + prints these with a leading 'f'. */ +#define S390_OPERAND_FPR 0x2 + +/* This operand names an access register. The disassembler + prints these with a leading 'a'. */ +#define S390_OPERAND_AR 0x4 + +/* This operand names a control register. The disassembler + prints these with a leading 'c'. */ +#define S390_OPERAND_CR 0x8 + +/* This operand is a displacement. */ +#define S390_OPERAND_DISP 0x10 + +/* This operand names a base register. */ +#define S390_OPERAND_BASE 0x20 + +/* This operand names an index register, it can be skipped. */ +#define S390_OPERAND_INDEX 0x40 + +/* This operand is a relative branch displacement. The disassembler + prints these symbolically if possible. */ +#define S390_OPERAND_PCREL 0x80 + +/* This operand takes signed values. */ +#define S390_OPERAND_SIGNED 0x100 + +/* This operand is a length. */ +#define S390_OPERAND_LENGTH 0x200 + +#endif /* S390_H */ |