1 #include "l.h"
2
3 void
listinit(void)4 listinit(void)
5 {
6
7 fmtinstall('A', Aconv);
8 fmtinstall('D', Dconv);
9 fmtinstall('P', Pconv);
10 fmtinstall('S', Sconv);
11 fmtinstall('N', Nconv);
12 fmtinstall('R', Rconv);
13 }
14
15 void
prasm(Prog * p)16 prasm(Prog *p)
17 {
18 print("%P\n", p);
19 }
20
21 int
Pconv(Fmt * fp)22 Pconv(Fmt *fp)
23 {
24 char str[STRINGSZ], *s;
25 Prog *p;
26 int a;
27
28 p = va_arg(fp->args, Prog*);
29 curp = p;
30 a = p->as;
31 if(a == ADATA || a == AINIT || a == ADYNT)
32 sprint(str, "(%d) %A %D/%d,%D", p->line, a, &p->from, p->reg, &p->to);
33 else {
34 s = str;
35 if(p->mark & NOSCHED)
36 s += sprint(s, "*");
37 if(p->reg == NREG && p->from3.type == D_NONE)
38 sprint(s, "(%d) %A %D,%D", p->line, a, &p->from, &p->to);
39 else
40 if(a != ATEXT && p->from.type == D_OREG) {
41 sprint(s, "(%d) %A %ld(R%d+R%d),%D", p->line, a,
42 p->from.offset, p->from.reg, p->reg, &p->to);
43 } else
44 if(p->to.type == D_OREG) {
45 sprint(s, "(%d) %A %D,%ld(R%d+R%d)", p->line, a,
46 &p->from, p->to.offset, p->to.reg, p->reg);
47 } else {
48 s += sprint(s, "(%d) %A %D", p->line, a, &p->from);
49 if(p->reg != NREG)
50 s += sprint(s, ",%c%d", p->from.type==D_FREG?'F':'R', p->reg);
51 if(p->from3.type != D_NONE)
52 s += sprint(s, ",%D", &p->from3);
53 sprint(s, ",%D", &p->to);
54 }
55 }
56 return fmtstrcpy(fp, str);
57 }
58
59 int
Aconv(Fmt * fp)60 Aconv(Fmt *fp)
61 {
62 char *s;
63 int a;
64
65 a = va_arg(fp->args, int);
66 s = "???";
67 if(a >= AXXX && a < ALAST)
68 s = anames[a];
69 return fmtstrcpy(fp, s);
70 }
71
72 int
Dconv(Fmt * fp)73 Dconv(Fmt *fp)
74 {
75 char str[STRINGSZ];
76 Adr *a;
77 long v;
78
79 a = va_arg(fp->args, Adr*);
80 switch(a->type) {
81
82 default:
83 sprint(str, "GOK-type(%d)", a->type);
84 break;
85
86 case D_NONE:
87 str[0] = 0;
88 if(a->name != D_NONE || a->reg != NREG || a->sym != S)
89 sprint(str, "%N(R%d)(NONE)", a, a->reg);
90 break;
91
92 case D_CONST:
93 if(a->reg != NREG)
94 sprint(str, "$%N(R%d)", a, a->reg);
95 else
96 sprint(str, "$%N", a);
97 break;
98
99 case D_OREG:
100 if(a->reg != NREG)
101 sprint(str, "%N(R%d)", a, a->reg);
102 else
103 sprint(str, "%N", a);
104 break;
105
106 case D_REG:
107 sprint(str, "R%d", a->reg);
108 if(a->name != D_NONE || a->sym != S)
109 sprint(str, "%N(R%d)(REG)", a, a->reg);
110 break;
111
112 case D_FREG:
113 sprint(str, "F%d", a->reg);
114 if(a->name != D_NONE || a->sym != S)
115 sprint(str, "%N(F%d)(REG)", a, a->reg);
116 break;
117
118 case D_CREG:
119 if(a->reg == NREG)
120 strcpy(str, "CR");
121 else
122 sprint(str, "CR%d", a->reg);
123 if(a->name != D_NONE || a->sym != S)
124 sprint(str, "%N(C%d)(REG)", a, a->reg);
125 break;
126
127 case D_SPR:
128 if(a->name == D_NONE && a->sym == S) {
129 switch(a->offset) {
130 case D_XER: sprint(str, "XER"); break;
131 case D_LR: sprint(str, "LR"); break;
132 case D_CTR: sprint(str, "CTR"); break;
133 default: sprint(str, "SPR(%ld)", a->offset); break;
134 }
135 break;
136 }
137 sprint(str, "SPR-GOK(%d)", a->reg);
138 if(a->name != D_NONE || a->sym != S)
139 sprint(str, "%N(SPR-GOK%d)(REG)", a, a->reg);
140 break;
141
142 case D_DCR:
143 if(a->name == D_NONE && a->sym == S) {
144 if(a->reg == NREG)
145 sprint(str, "DCR(%ld)", a->offset);
146 else
147 sprint(str, "DCR(R%d)", a->reg);
148 break;
149 }
150 sprint(str, "DCR-GOK(%d)", a->reg);
151 if(a->name != D_NONE || a->sym != S)
152 sprint(str, "%N(DCR-GOK%d)(REG)", a, a->reg);
153 break;
154
155 case D_OPT:
156 sprint(str, "OPT(%d)", a->reg);
157 break;
158
159 case D_FPSCR:
160 if(a->reg == NREG)
161 strcpy(str, "FPSCR");
162 else
163 sprint(str, "FPSCR(%d)", a->reg);
164 break;
165
166 case D_MSR:
167 sprint(str, "MSR");
168 break;
169
170 case D_SREG:
171 sprint(str, "SREG(%d)", a->reg);
172 if(a->name != D_NONE || a->sym != S)
173 sprint(str, "%N(SREG%d)(REG)", a, a->reg);
174 break;
175
176 case D_BRANCH:
177 if(curp->cond != P) {
178 v = curp->cond->pc;
179 if(v >= INITTEXT)
180 v -= INITTEXT-HEADR;
181 if(a->sym != S)
182 sprint(str, "%s+%.5lux(BRANCH)", a->sym->name, v);
183 else
184 sprint(str, "%.5lux(BRANCH)", v);
185 } else
186 if(a->sym != S)
187 sprint(str, "%s+%ld(APC)", a->sym->name, a->offset);
188 else
189 sprint(str, "%ld(APC)", a->offset);
190 break;
191
192 case D_FCONST:
193 sprint(str, "$%lux-%lux", a->ieee.h, a->ieee.l);
194 break;
195
196 case D_SCONST:
197 sprint(str, "$\"%S\"", a->sval);
198 break;
199 }
200 return fmtstrcpy(fp, str);
201 }
202
203 int
Nconv(Fmt * fp)204 Nconv(Fmt *fp)
205 {
206 char str[STRINGSZ];
207 Adr *a;
208 Sym *s;
209
210 a = va_arg(fp->args, Adr*);
211 s = a->sym;
212 if(s == S) {
213 sprint(str, "%ld", a->offset);
214 goto out;
215 }
216 switch(a->name) {
217 default:
218 sprint(str, "GOK-name(%d)", a->name);
219 break;
220
221 case D_EXTERN:
222 sprint(str, "%s+%ld(SB)", s->name, a->offset);
223 break;
224
225 case D_STATIC:
226 sprint(str, "%s<>+%ld(SB)", s->name, a->offset);
227 break;
228
229 case D_AUTO:
230 sprint(str, "%s-%ld(SP)", s->name, -a->offset);
231 break;
232
233 case D_PARAM:
234 sprint(str, "%s+%ld(FP)", s->name, a->offset);
235 break;
236 }
237 out:
238 return fmtstrcpy(fp, str);
239 }
240
241 int
Rconv(Fmt * fp)242 Rconv(Fmt *fp)
243 {
244 char *s;
245 int a;
246
247 a = va_arg(fp->args, int);
248 s = "C_??";
249 if(a >= C_NONE && a <= C_NCLASS)
250 s = cnames[a];
251 return fmtstrcpy(fp, s);
252 }
253
254 int
Sconv(Fmt * fp)255 Sconv(Fmt *fp)
256 {
257 int i, c;
258 char str[STRINGSZ], *p, *a;
259
260 a = va_arg(fp->args, char*);
261 p = str;
262 for(i=0; i<sizeof(long); i++) {
263 c = a[i] & 0xff;
264 if(c >= 'a' && c <= 'z' ||
265 c >= 'A' && c <= 'Z' ||
266 c >= '0' && c <= '9' ||
267 c == ' ' || c == '%') {
268 *p++ = c;
269 continue;
270 }
271 *p++ = '\\';
272 switch(c) {
273 case 0:
274 *p++ = 'z';
275 continue;
276 case '\\':
277 case '"':
278 *p++ = c;
279 continue;
280 case '\n':
281 *p++ = 'n';
282 continue;
283 case '\t':
284 *p++ = 't';
285 continue;
286 }
287 *p++ = (c>>6) + '0';
288 *p++ = ((c>>3) & 7) + '0';
289 *p++ = (c & 7) + '0';
290 }
291 *p = 0;
292 return fmtstrcpy(fp, str);
293 }
294
295 void
diag(char * fmt,...)296 diag(char *fmt, ...)
297 {
298 char buf[STRINGSZ], *tn;
299 va_list arg;
300
301 tn = "??none??";
302 if(curtext != P && curtext->from.sym != S)
303 tn = curtext->from.sym->name;
304 va_start(arg, fmt);
305 vseprint(buf, buf+sizeof(buf), fmt, arg);
306 va_end(arg);
307 print("%s: %s\n", tn, buf);
308
309 nerrors++;
310 if(nerrors > 10) {
311 print("too many errors\n");
312 errorexit();
313 }
314 }
315