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
|
#include <stdio.h>
#include <ctype.h>
#include "ansidecl.h"
#include "callback.h"
#include "opcode/mn10300.h"
#include <limits.h>
#include "remote-sim.h"
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;
} 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
#define RLW(x) load_mem (x, 4)
#ifdef _WIN32
#define SIGTRAP 5
#define SIGQUIT 3
#endif
/* 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 uint32 load_mem PARAMS ((SIM_ADDR addr, int len));
extern void store_mem PARAMS ((SIM_ADDR addr, int len, uint32 data));
extern uint8 *map PARAMS ((SIM_ADDR addr));
|