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PR gas/14887
[deliverable/binutils-gdb.git] / include / opcode / or32.h
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3b16e843 1/* Table of opcodes for the OpenRISC 1000 ISA.
e4e42b45 2 Copyright 2002, 2003, 2010 Free Software Foundation, Inc.
3b16e843
NC		 3 Contributed by Damjan Lampret (lampret@opencores.org).
4
5 This file is part of or1k_gen_isa, or1ksim, GDB and GAS.
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
e4e42b45 9 the Free Software Foundation; either version 3 of the License, or
3b16e843
NC		 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
e4e42b45
NC		 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
3b16e843
NC		 21
22/* We treat all letters the same in encode/decode routines so
23 we need to assign some characteristics to them like signess etc. */
24
25#ifndef OR32_H_ISA
26#define OR32_H_ISA
27
28#define NUM_UNSIGNED (0)
29#define NUM_SIGNED (1)
30
3b16e843
NC		 31#define MAX_GPRS 32
32#define PAGE_SIZE 4096
33#undef __HALF_WORD_INSN__
34
35#define OPERAND_DELIM (',')
36
37#define OR32_IF_DELAY (1)
38#define OR32_W_FLAG (2)
39#define OR32_R_FLAG (4)
40
41struct or32_letter
42{
43 char letter;
44 int sign;
45 /* int reloc; relocation per letter ?? */
46};
47
48/* Main instruction specification array. */
49struct or32_opcode
50{
51 /* Name of the instruction. */
52 char *name;
53
54 /* A string of characters which describe the operands.
55 Valid characters are:
56 ,() Itself. Characters appears in the assembly code.
57 rA Register operand.
58 rB Register operand.
59 rD Register operand.
60 I An immediate operand, range -32768 to 32767.
61 J An immediate operand, range . (unused)
62 K An immediate operand, range 0 to 65535.
63 L An immediate operand, range 0 to 63.
64 M An immediate operand, range . (unused)
65 N An immediate operand, range -33554432 to 33554431.
66 O An immediate operand, range . (unused). */
67 char *args;
68
69 /* Opcode and operand encoding. */
70 char *encoding;
8cf3f354 71 void (*exec) (void);
3b16e843
NC		 72 unsigned int flags;
73};
74
75#define OPTYPE_LAST (0x80000000)
76#define OPTYPE_OP (0x40000000)
77#define OPTYPE_REG (0x20000000)
78#define OPTYPE_SIG (0x10000000)
79#define OPTYPE_DIS (0x08000000)
80#define OPTYPE_DST (0x04000000)
81#define OPTYPE_SBIT (0x00001F00)
82#define OPTYPE_SHR (0x0000001F)
83#define OPTYPE_SBIT_SHR (8)
84
85/* MM: Data how to decode operands. */
86extern struct insn_op_struct
87{
88 unsigned long type;
89 unsigned long data;
90} **op_start;
91
92#ifdef HAS_EXECUTION
8cf3f354
AM		 93extern void l_invalid (void);
94extern void l_sfne (void);
95extern void l_bf (void);
96extern void l_add (void);
97extern void l_sw (void);
98extern void l_sb (void);
99extern void l_sh (void);
100extern void l_lwz (void);
101extern void l_lbs (void);
102extern void l_lbz (void);
103extern void l_lhs (void);
104extern void l_lhz (void);
105extern void l_movhi (void);
106extern void l_and (void);
107extern void l_or (void);
108extern void l_xor (void);
109extern void l_sub (void);
110extern void l_mul (void);
111extern void l_div (void);
112extern void l_divu (void);
113extern void l_sll (void);
114extern void l_sra (void);
115extern void l_srl (void);
116extern void l_j (void);
117extern void l_jal (void);
118extern void l_jalr (void);
119extern void l_jr (void);
120extern void l_rfe (void);
121extern void l_nop (void);
122extern void l_bnf (void);
123extern void l_sfeq (void);
124extern void l_sfgts (void);
125extern void l_sfges (void);
126extern void l_sflts (void);
127extern void l_sfles (void);
128extern void l_sfgtu (void);
129extern void l_sfgeu (void);
130extern void l_sfltu (void);
131extern void l_sfleu (void);
132extern void l_mtspr (void);
133extern void l_mfspr (void);
134extern void l_sys (void);
135extern void l_trap (void); /* CZ 21/06/01. */
136extern void l_macrc (void);
137extern void l_mac (void);
138extern void l_msb (void);
139extern void l_invalid (void);
140extern void l_cust1 (void);
141extern void l_cust2 (void);
142extern void l_cust3 (void);
143extern void l_cust4 (void);
3b16e843 144#endif
8cf3f354 145extern void l_none (void);
3b16e843
NC		 146
147extern const struct or32_letter or32_letters[];
148
149extern const struct or32_opcode or32_opcodes[];
150
151extern const unsigned int or32_num_opcodes;
152
153/* Calculates instruction length in bytes. Always 4 for OR32. */
8cf3f354 154extern int insn_len (int);
3b16e843
NC		 155
156/* Is individual insn's operand signed or unsigned? */
8cf3f354 157extern int letter_signed (char);
3b16e843
NC		 158
159/* Number of letters in the individual lettered operand. */
8cf3f354 160extern int letter_range (char);
3b16e843
NC		 161
162/* MM: Returns index of given instruction name. */
8cf3f354 163extern int insn_index (char *);
3b16e843
NC		 164
165/* MM: Returns instruction name from index. */
8cf3f354 166extern const char *insn_name (int);
3b16e843
NC		 167
168/* MM: Constructs new FSM, based on or32_opcodes. */
8cf3f354 169extern void build_automata (void);
3b16e843
NC		 170
171/* MM: Destructs FSM. */
8cf3f354 172extern void destruct_automata (void);
3b16e843
NC		 173
174/* MM: Decodes instruction using FSM. Call build_automata first. */
8cf3f354 175extern int insn_decode (unsigned int);
3b16e843
NC		 176
177/* Disassemble one instruction from insn to disassemble.
178 Return the size of the instruction. */
8cf3f354 179int disassemble_insn (unsigned long);
3b16e843
NC		 180
181#endif
GDB Binutils - Deliverables
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