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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-6.8/] [include/] [opcode/] [s390.h] - Blame information for rev 157

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1 24 jeremybenn
/* s390.h -- Header file for S390 opcode table
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   Copyright 2000, 2001, 2003 Free Software Foundation, Inc.
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   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
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   This file is part of BFD, the Binary File Descriptor library.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 2 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
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   02110-1301, USA.  */
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#ifndef S390_H
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#define S390_H
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/* List of instruction sets variations. */
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enum s390_opcode_mode_val
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  {
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    S390_OPCODE_ESA = 0,
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    S390_OPCODE_ZARCH
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  };
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enum s390_opcode_cpu_val
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  {
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    S390_OPCODE_G5 = 0,
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    S390_OPCODE_G6,
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    S390_OPCODE_Z900,
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    S390_OPCODE_Z990,
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    S390_OPCODE_Z9_109,
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    S390_OPCODE_Z9_EC
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  };
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/* The opcode table is an array of struct s390_opcode.  */
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struct s390_opcode
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  {
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    /* The opcode name.  */
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    const char * name;
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    /* The opcode itself.  Those bits which will be filled in with
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       operands are zeroes.  */
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    unsigned char opcode[6];
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    /* The opcode mask.  This is used by the disassembler.  This is a
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       mask containing ones indicating those bits which must match the
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       opcode field, and zeroes indicating those bits which need not
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       match (and are presumably filled in by operands).  */
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    unsigned char mask[6];
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    /* The opcode length in bytes. */
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    int oplen;
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    /* An array of operand codes.  Each code is an index into the
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       operand table.  They appear in the order which the operands must
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       appear in assembly code, and are terminated by a zero.  */
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    unsigned char operands[6];
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    /* Bitmask of execution modes this opcode is available for.  */
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    unsigned int modes;
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    /* First cpu this opcode is available for.  */
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    enum s390_opcode_cpu_val min_cpu;
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  };
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/* The table itself is sorted by major opcode number, and is otherwise
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   in the order in which the disassembler should consider
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   instructions.  */
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extern const struct s390_opcode s390_opcodes[];
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extern const int                s390_num_opcodes;
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/* A opcode format table for the .insn pseudo mnemonic.  */
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extern const struct s390_opcode s390_opformats[];
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extern const int                s390_num_opformats;
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/* Values defined for the flags field of a struct powerpc_opcode.  */
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/* The operands table is an array of struct s390_operand.  */
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struct s390_operand
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  {
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    /* The number of bits in the operand.  */
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    int bits;
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    /* How far the operand is left shifted in the instruction.  */
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    int shift;
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    /* One bit syntax flags.  */
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    unsigned long flags;
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  };
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/* Elements in the table are retrieved by indexing with values from
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   the operands field of the powerpc_opcodes table.  */
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extern const struct s390_operand s390_operands[];
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/* Values defined for the flags field of a struct s390_operand.  */
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/* This operand names a register.  The disassembler uses this to print
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   register names with a leading 'r'.  */
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#define S390_OPERAND_GPR 0x1
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/* This operand names a floating point register.  The disassembler
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   prints these with a leading 'f'. */
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#define S390_OPERAND_FPR 0x2
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/* This operand names an access register.  The disassembler
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   prints these with a leading 'a'.  */
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#define S390_OPERAND_AR 0x4
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/* This operand names a control register.  The disassembler
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   prints these with a leading 'c'.  */
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#define S390_OPERAND_CR 0x8
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/* This operand is a displacement.  */
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#define S390_OPERAND_DISP 0x10
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/* This operand names a base register.  */
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#define S390_OPERAND_BASE 0x20
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/* This operand names an index register, it can be skipped.  */
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#define S390_OPERAND_INDEX 0x40
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/* This operand is a relative branch displacement.  The disassembler
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   prints these symbolically if possible.  */
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#define S390_OPERAND_PCREL 0x80
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/* This operand takes signed values.  */
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#define S390_OPERAND_SIGNED 0x100
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/* This operand is a length.  */
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#define S390_OPERAND_LENGTH 0x200
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/* This operand is optional. Only a single operand at the end of
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   the instruction may be optional.  */
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#define S390_OPERAND_OPTIONAL 0x400
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        #endif /* S390_H */

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