| /* s390.h -- Header file for S390 opcode table |
| Copyright 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 */ |