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
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
|
#include <u.h>
#include <libc.h>
#include <bio.h>
#include "../kc/k.out.h"
#include "../cc/compat.h"
typedef struct Adr Adr;
typedef struct Sym Sym;
typedef struct Autom Auto;
typedef struct Prog Prog;
typedef struct Optab Optab;
#define P ((Prog*)0)
#define S ((Sym*)0)
#define TNAME (curtext&&curtext->from.sym?curtext->from.sym->name:noname)
struct Adr
{
union
{
long u0offset;
char u0sval[NSNAME];
Ieee u0ieee;
} u0;
union
{
Auto* u1autom;
Sym* u1sym;
} u1;
char type;
char reg;
char name;
char class;
};
#define offset u0.u0offset
#define sval u0.u0sval
#define ieee u0.u0ieee
#define autom u1.u1autom
#define sym u1.u1sym
struct Prog
{
Adr from;
Adr to;
Prog *forwd;
Prog *cond;
Prog *link;
long pc;
long regused;
short line;
short mark;
uchar optab;
uchar as;
char reg;
};
struct Sym
{
char *name;
short type;
short version;
short become;
short frame;
char dupok;
long value;
Sym *link;
};
struct Autom
{
Sym *asym;
Auto *link;
long aoffset;
short type;
};
struct Optab
{
uchar as;
char a1;
char a2;
char a3;
char type;
char size;
char param;
};
EXTERN struct
{
Optab* start;
Optab* stop;
} oprange[AEND];
enum
{
AXLD = AEND+1,
AXST,
FPCHIP = 1,
BIG = 4096-8,
STRINGSZ = 200,
MAXIO = 8192,
MAXHIST = 20, /* limit of path elements for history symbols */
DATBLK = 1024,
NHASH = 10007,
NHUNK = 100000,
MINSIZ = 64,
NENT = 100,
NSCHED = 20,
/* mark flags */
LABEL = 1<<0,
LEAF = 1<<1,
FLOAT = 1<<2,
BRANCH = 1<<3,
LOAD = 1<<4,
FCMP = 1<<5,
SYNC = 1<<6,
LIST = 1<<7,
FOLL = 1<<8,
NOSCHED = 1<<9,
STEXT = 1,
SDATA,
SBSS,
SDATA1,
SXREF,
SLEAF,
SFILE,
SCONST,
C_NONE = 0,
C_REG,
C_FREG,
C_CREG,
C_PREG,
C_FSR,
C_FQ,
C_ZCON, /* 0 */
C_SCON, /* 13 bit signed */
C_UCON, /* low 10 bits 0 */
C_LCON, /* other */
C_SACON,
C_SECON,
C_LACON,
C_LECON,
C_SBRA,
C_LBRA,
C_ESAUTO,
C_OSAUTO,
C_SAUTO,
C_OLAUTO,
C_ELAUTO,
C_LAUTO,
C_ESEXT,
C_OSEXT,
C_SEXT,
C_ELEXT,
C_OLEXT,
C_LEXT,
C_ZOREG,
C_SOREG,
C_LOREG,
C_ASI,
C_ANY,
C_GOK,
C_NCLASS
};
EXTERN union
{
struct
{
uchar obuf[MAXIO]; /* output buffer */
uchar ibuf[MAXIO]; /* input buffer */
} u;
char dbuf[1];
} buf;
#define cbuf u.obuf
#define xbuf u.ibuf
EXTERN long HEADR; /* length of header */
EXTERN int HEADTYPE; /* type of header */
EXTERN long INITDAT; /* data location */
EXTERN long INITRND; /* data round above text location */
EXTERN long INITTEXT; /* text location */
EXTERN char* INITENTRY; /* entry point */
EXTERN long autosize;
EXTERN Biobuf bso;
EXTERN long bsssize;
EXTERN int cbc;
EXTERN uchar* cbp;
EXTERN int cout;
EXTERN Auto* curauto;
EXTERN Auto* curhist;
EXTERN Prog* curp;
EXTERN Prog* curtext;
EXTERN Prog* datap;
EXTERN Prog* prog_mul;
EXTERN Prog* prog_div;
EXTERN Prog* prog_divl;
EXTERN Prog* prog_mod;
EXTERN Prog* prog_modl;
EXTERN long datsize;
EXTERN char debug[128];
EXTERN Prog* firstp;
EXTERN char fnuxi8[8];
EXTERN Sym* hash[NHASH];
EXTERN Sym* histfrog[MAXHIST];
EXTERN int histfrogp;
EXTERN int histgen;
EXTERN char* library[50];
EXTERN char* libraryobj[50];
EXTERN int libraryp;
EXTERN int xrefresolv;
EXTERN char inuxi1[1];
EXTERN char inuxi2[2];
EXTERN char inuxi4[4];
EXTERN Prog* lastp;
EXTERN long lcsize;
EXTERN char literal[32];
EXTERN int nerrors;
EXTERN char* noname;
EXTERN long instoffset;
EXTERN char* outfile;
EXTERN long pc;
EXTERN long symsize;
EXTERN long staticgen;
EXTERN Prog* textp;
EXTERN long textsize;
EXTERN char xcmp[C_NCLASS][C_NCLASS];
EXTERN int version;
EXTERN Prog zprg;
EXTERN int dtype;
extern Optab optab[];
extern char* anames[];
#pragma varargck type "A" int
#pragma varargck type "A" uint
#pragma varargck type "D" Adr*
#pragma varargck type "N" Adr*
#pragma varargck type "P" Prog*
#pragma varargck type "S" char*
#pragma varargck argpos diag 1
int Aconv(Fmt*);
int Dconv(Fmt*);
int Nconv(Fmt*);
int Pconv(Fmt*);
int Sconv(Fmt*);
int aclass(Adr*);
void addhist(long, int);
void histtoauto(void);
void addnop(Prog*);
void append(Prog*, Prog*);
void asmb(void);
void asmlc(void);
int asmout(Prog*, Optab*, int);
void asmsym(void);
long atolwhex(char*);
Prog* brloop(Prog*);
void buildop(void);
void cflush(void);
int cmp(int, int);
int compound(Prog*);
double cputime(void);
void datblk(long, long);
void diag(char*, ...);
void dodata(void);
void doprof1(void);
void doprof2(void);
long entryvalue(void);
void errorexit(void);
void exchange(Prog*);
int find1(long, int);
void follow(void);
double ieeedtod(Ieee*);
long ieeedtof(Ieee*);
int isnop(Prog*);
void ldobj(int, long, char*);
void loadlib(void);
void listinit(void);
void initmuldiv(void);
Sym* lookup(char*, int);
void lput(long);
void mkfwd(void);
void names(void);
void nocache(Prog*);
void noops(void);
void nuxiinit(void);
void objfile(char*);
int ocmp(const void*, const void*);
long opcode(int);
Optab* oplook(Prog*);
void patch(void);
void prasm(Prog*);
void prepend(Prog*, Prog*);
Prog* prg(void);
int pseudo(Prog*);
void putsymb(char*, int, long, int);
long regoff(Adr*);
int relinv(int);
long rnd(long, long);
void sched(Prog*, Prog*);
void span(void);
void undef(void);
void xdefine(char*, int, long);
void xfol(Prog*);
|
