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/* s390.h -- Header file for S390 opcode table |
Copyright 2000, 2001, 2003, 2010 Free Software Foundation, Inc. |
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 |
it under the terms of the GNU General Public License as published by |
the Free Software Foundation; either version 3 of the License, or |
(at your option) any later version. |
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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. */ |
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#ifndef S390_H |
#define S390_H |
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/* List of instruction sets variations. */ |
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enum s390_opcode_mode_val |
{ |
S390_OPCODE_ESA = 0, |
S390_OPCODE_ZARCH |
}; |
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enum s390_opcode_cpu_val |
{ |
S390_OPCODE_G5 = 0, |
S390_OPCODE_G6, |
S390_OPCODE_Z900, |
S390_OPCODE_Z990, |
S390_OPCODE_Z9_109, |
S390_OPCODE_Z9_EC, |
S390_OPCODE_Z10, |
S390_OPCODE_Z196, |
S390_OPCODE_ZEC12, |
S390_OPCODE_MAXCPU |
}; |
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/* The opcode table is an array of struct s390_opcode. */ |
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struct s390_opcode |
{ |
/* The opcode name. */ |
const char * name; |
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/* The opcode itself. Those bits which will be filled in with |
operands are zeroes. */ |
unsigned char opcode[6]; |
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/* 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]; |
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/* The opcode length in bytes. */ |
int oplen; |
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/* 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]; |
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/* Bitmask of execution modes this opcode is available for. */ |
unsigned int modes; |
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/* First cpu this opcode is available for. */ |
enum s390_opcode_cpu_val min_cpu; |
}; |
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/* 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; |
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/* A opcode format table for the .insn pseudo mnemonic. */ |
extern const struct s390_opcode s390_opformats[]; |
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 |
{ |
/* The number of bits in the operand. */ |
int bits; |
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/* How far the operand is left shifted in the instruction. */ |
int shift; |
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/* One bit syntax flags. */ |
unsigned long flags; |
}; |
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/* Elements in the table are retrieved by indexing with values from |
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 |
register names with a leading 'r'. */ |
#define S390_OPERAND_GPR 0x1 |
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/* This operand names a floating point register. The disassembler |
prints these with a leading 'f'. */ |
#define S390_OPERAND_FPR 0x2 |
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/* This operand names an access register. The disassembler |
prints these with a leading 'a'. */ |
#define S390_OPERAND_AR 0x4 |
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/* This operand names a control register. The disassembler |
prints these with a leading 'c'. */ |
#define S390_OPERAND_CR 0x8 |
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/* This operand is a displacement. */ |
#define S390_OPERAND_DISP 0x10 |
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/* This operand names a base register. */ |
#define S390_OPERAND_BASE 0x20 |
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/* This operand names an index register, it can be skipped. */ |
#define S390_OPERAND_INDEX 0x40 |
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/* This operand is a relative branch displacement. The disassembler |
prints these symbolically if possible. */ |
#define S390_OPERAND_PCREL 0x80 |
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/* This operand takes signed values. */ |
#define S390_OPERAND_SIGNED 0x100 |
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/* This operand is a length. */ |
#define S390_OPERAND_LENGTH 0x200 |
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/* This operand is optional. Only a single operand at the end of |
the instruction may be optional. */ |
#define S390_OPERAND_OPTIONAL 0x400 |
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/* The operand needs to be a valid GP or FP register pair. */ |
#define S390_OPERAND_REG_PAIR 0x800 |
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#endif /* S390_H */ |