/* s390.h -- Header file for S390 opcode table Copyright 2000, 2001, 2003 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef S390_H #define S390_H /* List of instruction sets variations. */ enum s390_opcode_mode_val { S390_OPCODE_ESA = 0, S390_OPCODE_ZARCH }; enum s390_opcode_cpu_val { S390_OPCODE_G5 = 0, S390_OPCODE_G6, S390_OPCODE_Z900, S390_OPCODE_Z990, S390_OPCODE_Z9_109 }; /* 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 execution modes this opcode is available for. */ unsigned int modes; /* First cpu this opcode is available for. */ enum s390_opcode_cpu_val min_cpu; }; /* 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 /* This operand is optional. Only a single operand at the end of the instruction may be optional. */ #define S390_OPERAND_OPTIONAL 0x400 #endif /* S390_H */