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
|
/*
* picasm.h
*
* Copyright 1995-2005 Timo Rossi, <trossi@iki.fi>
* See the file LICENSE for license terms.
*
* http://www.iki.fi/trossi/pic/
*
*/
#define VERSION "v1.14"
#define I_VERSION 114
#if defined(__SASC) || defined(__TURBOC__) || defined(__WATCOMC__) || defined(_MSC_VER)
#define strcasecmp stricmp
#define strncasecmp strnicmp
#endif
#define PIC_16BIT_SUPPORT 1
/* hex output end-of-line. if you need CRLFs in hex files
* when running on a system which does not normally generate
* them (such as Unix), use "\r\n", else "\n".
*/
#define HEX_EOL "\r\n"
/* maximum number of errors before aborting assembly */
#define MAX_ERRORS 20
/* output formats */
enum {
IHX8M,
IHX16
};
/* org mode */
typedef enum {
O_NONE,
O_PROGRAM,
O_REGFILE,
O_EDATA
} org_mode_t ;
#ifdef PIC_16BIT_SUPPORT
typedef unsigned long pic_instr_t;
#define INVALID_INSTR 0xfffff
#define INVALID_DATA 0xfffff
#define INVALID_CONFIG 0xfffff
#define INVALID_ID 0xfffff
#else
typedef unsigned short pic_instr_t;
#define INVALID_INSTR 0xffff
#define INVALID_DATA 0xffff
#define INVALID_CONFIG 0xffff
#define INVALID_ID 0xffff
#endif /* PIC_16BIT_SUPPORT */
/* list flags */
#define LIST_LOC 1
#define LIST_PROG 2
#define LIST_EDATA 4
#define LIST_FORWARD 8
#define LIST_VAL 0x10
#define LIST_PTR 0x20
/* inc_file types */
typedef enum {
INC_FILE,
INC_MACRO
} inctype_t;
/*
* structure for include files/macros
*/
struct inc_file {
struct inc_file *next;
union {
struct {
FILE *fp;
char *fname;
} f; /* file */
struct {
struct symbol *sym;
struct macro_line *ml;
struct macro_arg *args;
int uniq_id;
} m; /* macro */
} v;
inctype_t type;
int linenum;
int cond_nest_count;
int config_flag;
};
/*
* structure to hold one macro line
*/
struct macro_line {
struct macro_line *next;
char text[1];
};
/* Macro argument */
struct macro_arg {
struct macro_arg *next;
char text[1];
};
/*
* structure for patching forward jumps
*/
typedef enum {
PATCH11, /* 14-bit instr. set PICs */
PATCH9, /* 12-bit, goto */
PATCH8, /* 12-bit, call */
PATCH_UPPER_BYTE /* hibyte() */
} patchtype_t;
struct patch {
struct patch *next;
struct symbol *label;
int location;
patchtype_t type;
};
#define PROGMEM_MAX 16384
#define EEPROM_MAX 256
/*
* Definitions for different types of PIC processors
*/
typedef enum {
PIC_NONE,
PIC12BIT=1,
PIC14BIT,
PIC16BIT_NOMUL,
PIC16BIT
} instrset_t;
/*
* truth values for boolean functions
*/
#define EXPR_FALSE (0)
#define EXPR_TRUE (~0)
/* number of bits in an expression value */
#define EXPR_NBITS 32
/*
* Success/failure return codes for functions
*/
#define OK (0)
#define FAIL (-1)
/*
* variable declarations
*/
/* picasm.c */
extern struct inc_file *current_file;
extern char *line_buf_ptr;
extern char line_buffer[256];
extern int unique_id_count;
extern int cond_nest_count;
extern org_mode_t O_Mode;
extern int prog_location, reg_location, edata_location, org_val;
extern int warnlevel;
extern struct patch **local_patch_list_ptr;
extern int prog_mem_size;
extern unsigned short list_flags;
extern long list_val;
extern int listing_on;
extern instrset_t pic_instr_set;
extern pic_instr_t config_fuses;
extern int local_level;
extern char pic_name[256];
extern int default_radix;
/*
* function prototypes
*/
/* picasm.c */
void *mem_alloc(int size);
#define mem_free(p) free(p)
void fatal_error(char *, ...), error(int, char *, ...), warning(char *, ...);
void write_listing_line(int cond_flag);
void gen_code(int val);
void add_patch(int tab, struct symbol *sym, patchtype_t type);
int gen_byte_c(int instr_code);
/* config.c */
void parse_config(void);
void config_done(void);
/* expr.c */
int get_expression(long *);
/* pic12bit.c */
int assemble_12bit_mnemonic(int op);
/* pic14bit.c */
int assemble_14bit_mnemonic(int op);
/* pic16bit.c */
int assemble_16bit_mnemonic(int op);
|
