1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/* d10v.h -- Header file for D10V opcode table
Copyright 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
Written by Martin Hunt (hunt@cygnus.com), Cygnus Support
This file is part of GDB, GAS, and the GNU binutils.
GDB, GAS, and the GNU binutils are free software; you can redistribute
them and/or modify them under the terms of the GNU General Public
License as published by the Free Software Foundation; either version
1, or (at your option) any later version.
GDB, GAS, and the GNU binutils are distributed in the hope that they
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 file; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef D10V_H
#define D10V_H
/* Format Specifier */
#define FM00 0
#define FM01 0x40000000
#define FM10 0x80000000
#define FM11 0xC0000000
#define NOP 0x5e00
#define OPCODE_DIVS 0x14002800
/* The opcode table is an array of struct d10v_opcode. */
struct d10v_opcode
{
/* The opcode name. */
const char *name;
/* the opcode format */
int format;
/* These numbers were picked so we can do if( i & SHORT_OPCODE) */
#define SHORT_OPCODE 1
#define LONG_OPCODE 8
#define SHORT_2 1 /* short with 2 operands */
#define SHORT_B 3 /* short with 8-bit branch */
#define LONG_B 8 /* long with 16-bit branch */
#define LONG_L 10 /* long with 3 operands */
#define LONG_R 12 /* reserved */
/* just a placeholder for variable-length instructions */
/* for example, "bra" will be a fake for "bra.s" and bra.l" */
/* which will immediately follow in the opcode table. */
#define OPCODE_FAKE 32
/* the number of cycles */
int cycles;
/* the execution unit(s) used */
int unit;
#define EITHER 0
#define IU 1
#define MU 2
#define BOTH 3
/* execution type; parallel or sequential */
/* this field is used to decide if two instructions */
/* can be executed in parallel */
int exec_type;
#define PARONLY 1 /* parallel only */
#define SEQ 2 /* must be sequential */
#define PAR 4 /* may be parallel */
#define BRANCH_LINK 8 /* subroutine call. must be aligned */
#define RMEM 16 /* reads memory */
#define WMEM 32 /* writes memory */
#define RF0 64 /* reads f0 */
#define WF0 128 /* modifies f0 */
#define WCAR 256 /* write Carry */
#define BRANCH 512 /* branch, no link */
#define ALONE 1024 /* short but pack with a NOP if on asm line alone */
/* the opcode */
long opcode;
/* mask. if( (i & mask) == opcode ) then match */
long mask;
/* 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];
};
/* 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 d10v_opcode d10v_opcodes[];
extern const int d10v_num_opcodes;
/* The operands table is an array of struct d10v_operand. */
struct d10v_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. */
int flags;
};
/* Elements in the table are retrieved by indexing with values from
the operands field of the d10v_opcodes table. */
extern const struct d10v_operand d10v_operands[];
/* Values defined for the flags field of a struct d10v_operand. */
/* the operand must be an even number */
#define OPERAND_EVEN (1)
/* the operand must be an odd number */
#define OPERAND_ODD (2)
/* this is the destination register; it will be modified */
/* this is used by the optimizer */
#define OPERAND_DEST (4)
/* number or symbol */
#define OPERAND_NUM (8)
/* address or label */
#define OPERAND_ADDR (0x10)
/* register */
#define OPERAND_REG (0x20)
/* postincrement + */
#define OPERAND_PLUS (0x40)
/* postdecrement - */
#define OPERAND_MINUS (0x80)
/* @ */
#define OPERAND_ATSIGN (0x100)
/* @( */
#define OPERAND_ATPAR (0x200)
/* accumulator 0 */
#define OPERAND_ACC0 (0x400)
/* accumulator 1 */
#define OPERAND_ACC1 (0x800)
/* f0 / f1 flag register */
#define OPERAND_FFLAG (0x1000)
/* c flag register */
#define OPERAND_CFLAG (0x2000)
/* control register */
#define OPERAND_CONTROL (0x4000)
/* predecrement mode '@-sp' */
#define OPERAND_ATMINUS (0x8000)
/* signed number */
#define OPERAND_SIGNED (0x10000)
/* special accumulator shifts need a 4-bit number */
/* 1 <= x <= 16 */
#define OPERAND_SHIFT (0x20000)
/* general purpose register */
#define OPERAND_GPR (0x40000)
/* special imm3 values with range restricted to -2 <= imm3 <= 3 */
/* needed for rac/rachi */
#define RESTRICTED_NUM3 (0x80000)
/* Pre-decrement is only supported for SP. */
#define OPERAND_SP (0x100000)
/* Post-decrement is not supported for SP. Like OPERAND_EVEN, and
unlike OPERAND_SP, this flag doesn't prevent the instruction from
matching, it only fails validation later on. */
#define OPERAND_NOSP (0x200000)
/* Structure to hold information about predefined registers. */
struct pd_reg
{
char *name; /* name to recognize */
char *pname; /* name to print for this register */
int value;
};
extern const struct pd_reg d10v_predefined_registers[];
int d10v_reg_name_cnt PARAMS ((void));
/* an expressionS only has one register type, so we fake it */
/* by setting high bits to indicate type */
#define REGISTER_MASK 0xFF
#endif /* D10V_H */
|
