WebSVN – Kolibri OS – Blame – /contrib/toolchain/binutils/include/opcode/s390.h

Rev	Author	Line No.	Line
5191	serge	1	/* s390.h -- Header file for S390 opcode table
		2	Copyright 2000, 2001, 2003, 2010 Free Software Foundation, Inc.
		3	Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
		4
		5	This file is part of BFD, the Binary File Descriptor library.
		6
		7	This program is free software; you can redistribute it and/or modify
		8	it under the terms of the GNU General Public License as published by
		9	the Free Software Foundation; either version 3 of the License, or
		10	(at your option) any later version.
		11
		12	This program is distributed in the hope that it will be useful,
		13	but WITHOUT ANY WARRANTY; without even the implied warranty of
		14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		15	GNU General Public License for more details.
		16
		17	You should have received a copy of the GNU General Public License
		18	along with this program; if not, write to the Free Software
		19	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
		20	02110-1301, USA. */
		21
		22	#ifndef S390_H
		23	#define S390_H
		24
		25	/* List of instruction sets variations. */
		26
		27	enum s390_opcode_mode_val
		28	{
		29	S390_OPCODE_ESA = 0,
		30	S390_OPCODE_ZARCH
		31	};
		32
		33	enum s390_opcode_cpu_val
		34	{
		35	S390_OPCODE_G5 = 0,
		36	S390_OPCODE_G6,
		37	S390_OPCODE_Z900,
		38	S390_OPCODE_Z990,
		39	S390_OPCODE_Z9_109,
		40	S390_OPCODE_Z9_EC,
		41	S390_OPCODE_Z10,
		42	S390_OPCODE_Z196,
		43	S390_OPCODE_ZEC12,
		44	S390_OPCODE_MAXCPU
		45	};
		46
		47	/* The opcode table is an array of struct s390_opcode. */
		48
		49	struct s390_opcode
		50	{
		51	/* The opcode name. */
		52	const char * name;
		53
		54	/* The opcode itself. Those bits which will be filled in with
		55	operands are zeroes. */
		56	unsigned char opcode[6];
		57
		58	/* The opcode mask. This is used by the disassembler. This is a
		59	mask containing ones indicating those bits which must match the
		60	opcode field, and zeroes indicating those bits which need not
		61	match (and are presumably filled in by operands). */
		62	unsigned char mask[6];
		63
		64	/* The opcode length in bytes. */
		65	int oplen;
		66
		67	/* An array of operand codes. Each code is an index into the
		68	operand table. They appear in the order which the operands must
		69	appear in assembly code, and are terminated by a zero. */
		70	unsigned char operands[6];
		71
		72	/* Bitmask of execution modes this opcode is available for. */
		73	unsigned int modes;
		74
		75	/* First cpu this opcode is available for. */
		76	enum s390_opcode_cpu_val min_cpu;
		77	};
		78
		79	/* The table itself is sorted by major opcode number, and is otherwise
		80	in the order in which the disassembler should consider
		81	instructions. */
		82	extern const struct s390_opcode s390_opcodes[];
		83	extern const int s390_num_opcodes;
		84
		85	/* A opcode format table for the .insn pseudo mnemonic. */
		86	extern const struct s390_opcode s390_opformats[];
		87	extern const int s390_num_opformats;
		88
		89	/* Values defined for the flags field of a struct powerpc_opcode. */
		90
		91	/* The operands table is an array of struct s390_operand. */
		92
		93	struct s390_operand
		94	{
		95	/* The number of bits in the operand. */
		96	int bits;
		97
		98	/* How far the operand is left shifted in the instruction. */
		99	int shift;
		100
		101	/* One bit syntax flags. */
		102	unsigned long flags;
		103	};
		104
		105	/* Elements in the table are retrieved by indexing with values from
		106	the operands field of the powerpc_opcodes table. */
		107
		108	extern const struct s390_operand s390_operands[];
		109
		110	/* Values defined for the flags field of a struct s390_operand. */
		111
		112	/* This operand names a register. The disassembler uses this to print
		113	register names with a leading 'r'. */
		114	#define S390_OPERAND_GPR 0x1
		115
		116	/* This operand names a floating point register. The disassembler
		117	prints these with a leading 'f'. */
		118	#define S390_OPERAND_FPR 0x2
		119
		120	/* This operand names an access register. The disassembler
		121	prints these with a leading 'a'. */
		122	#define S390_OPERAND_AR 0x4
		123
		124	/* This operand names a control register. The disassembler
		125	prints these with a leading 'c'. */
		126	#define S390_OPERAND_CR 0x8
		127
		128	/* This operand is a displacement. */
		129	#define S390_OPERAND_DISP 0x10
		130
		131	/* This operand names a base register. */
		132	#define S390_OPERAND_BASE 0x20
		133
		134	/* This operand names an index register, it can be skipped. */
		135	#define S390_OPERAND_INDEX 0x40
		136
		137	/* This operand is a relative branch displacement. The disassembler
		138	prints these symbolically if possible. */
		139	#define S390_OPERAND_PCREL 0x80
		140
		141	/* This operand takes signed values. */
		142	#define S390_OPERAND_SIGNED 0x100
		143
		144	/* This operand is a length. */
		145	#define S390_OPERAND_LENGTH 0x200
		146
		147	/* This operand is optional. Only a single operand at the end of
		148	the instruction may be optional. */
		149	#define S390_OPERAND_OPTIONAL 0x400
		150
		151	/* The operand needs to be a valid GP or FP register pair. */
		152	#define S390_OPERAND_REG_PAIR 0x800
		153
		154	#endif /* S390_H */

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