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
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
|
#include <stdio.h>
#include <ctype.h>
#include "ansidecl.h"
#include "callback.h"
#include "opcode/mn10300.h"
#include <limits.h>
#include "remote-sim.h"
#ifndef INLINE
#ifdef __GNUC__
#define INLINE inline
#else
#define INLINE
#endif
#endif
extern host_callback *mn10300_callback;
#define DEBUG_TRACE 0x00000001
#define DEBUG_VALUES 0x00000002
extern int mn10300_debug;
#if UCHAR_MAX == 255
typedef unsigned char uint8;
typedef signed char int8;
#else
#error "Char is not an 8-bit type"
#endif
#if SHRT_MAX == 32767
typedef unsigned short uint16;
typedef signed short int16;
#else
#error "Short is not a 16-bit type"
#endif
#if INT_MAX == 2147483647
typedef unsigned int uint32;
typedef signed int int32;
#else
# if LONG_MAX == 2147483647
typedef unsigned long uint32;
typedef signed long int32;
# else
# error "Neither int nor long is a 32-bit type"
# endif
#endif
typedef uint32 reg_t;
struct simops
{
long opcode;
long mask;
void (*func)();
int length;
int format;
int numops;
int operands[16];
};
/* The current state of the processor; registers, memory, etc. */
struct _state
{
reg_t regs[15]; /* registers, d0-d3, a0-a3, sp, pc, mdr, psw,
lir, lar, mdrq */
uint8 *mem; /* main memory */
int exception;
int exited;
} State;
extern uint32 OP[4];
extern struct simops Simops[];
#define PC (State.regs[9])
#define PSW (State.regs[11])
#define PSW_Z 0x1
#define PSW_N 0x2
#define PSW_C 0x4
#define PSW_V 0x8
#define REG_D0 0
#define REG_A0 4
#define REG_SP 8
#define REG_PC 9
#define REG_MDR 10
#define REG_PSW 11
#define REG_LIR 12
#define REG_LAR 13
#define REG_MDRQ 14
#define SEXT3(x) ((((x)&0x7)^(~0x3))+0x4)
/* sign-extend a 4-bit number */
#define SEXT4(x) ((((x)&0xf)^(~0x7))+0x8)
/* sign-extend a 5-bit number */
#define SEXT5(x) ((((x)&0x1f)^(~0xf))+0x10)
/* sign-extend an 8-bit number */
#define SEXT8(x) ((((x)&0xff)^(~0x7f))+0x80)
/* sign-extend a 9-bit number */
#define SEXT9(x) ((((x)&0x1ff)^(~0xff))+0x100)
/* sign-extend a 16-bit number */
#define SEXT16(x) ((((x)&0xffff)^(~0x7fff))+0x8000)
/* sign-extend a 22-bit number */
#define SEXT22(x) ((((x)&0x3fffff)^(~0x1fffff))+0x200000)
#define MAX32 0x7fffffffLL
#define MIN32 0xff80000000LL
#define MASK32 0xffffffffLL
#define MASK40 0xffffffffffLL
#ifdef _WIN32
#define SIGTRAP 5
#define SIGQUIT 3
#endif
#define load_mem_big(addr,len) \
(len == 1 ? *((addr) + State.mem) : \
len == 2 ? ((*((addr) + State.mem) << 8) \
| *(((addr) + 1) + State.mem)) : \
len == 3 ? ((*((addr) + State.mem) << 16) \
| (*(((addr) + 1) + State.mem) << 8) \
| *(((addr) + 2) + State.mem)) : \
((*((addr) + State.mem) << 24) \
| (*(((addr) + 1) + State.mem) << 16) \
| (*(((addr) + 2) + State.mem) << 8) \
| *(((addr) + 3) + State.mem)))
static INLINE uint32
load_byte (addr)
SIM_ADDR addr;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
return p[0];
}
static INLINE uint32
load_half (addr)
SIM_ADDR addr;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
return p[1] << 8 | p[0];
}
static INLINE uint32
load_3_byte (addr)
SIM_ADDR addr;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
return p[2] << 16 | p[1] << 8 | p[0];
}
static INLINE uint32
load_word (addr)
SIM_ADDR addr;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
return p[3] << 24 | p[2] << 16 | p[1] << 8 | p[0];
}
static INLINE uint32
load_mem (addr, len)
SIM_ADDR addr;
int len;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
switch (len)
{
case 1:
return p[0];
case 2:
return p[1] << 8 | p[0];
case 3:
return p[2] << 16 | p[1] << 8 | p[0];
case 4:
return p[3] << 24 | p[2] << 16 | p[1] << 8 | p[0];
default:
abort ();
}
}
static INLINE void
store_byte (addr, data)
SIM_ADDR addr;
uint32 data;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
p[0] = data;
}
static INLINE void
store_half (addr, data)
SIM_ADDR addr;
uint32 data;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
p[0] = data;
p[1] = data >> 8;
}
static INLINE void
store_3_byte (addr, data)
SIM_ADDR addr;
uint32 data;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
p[0] = data;
p[1] = data >> 8;
p[2] = data >> 16;
}
static INLINE void
store_word (addr, data)
SIM_ADDR addr;
uint32 data;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
p[0] = data;
p[1] = data >> 8;
p[2] = data >> 16;
p[3] = data >> 24;
}
/* Function declarations. */
uint32 get_word PARAMS ((uint8 *));
uint16 get_half PARAMS ((uint8 *));
uint8 get_byte PARAMS ((uint8 *));
void put_word PARAMS ((uint8 *, uint32));
void put_half PARAMS ((uint8 *, uint16));
void put_byte PARAMS ((uint8 *, uint8));
extern uint8 *map PARAMS ((SIM_ADDR addr));
|
