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sim: erc32: strip paren from return statements
[deliverable/binutils-gdb.git] / sim / erc32 / func.c
1 /*
2 * func.c, misc simulator functions. This file is part of SIS.
3 *
4 * SIS, SPARC instruction simulator V1.8 Copyright (C) 1995 Jiri Gaisler,
5 * European Space Agency
6 *
7 * This program is free software; you can redistribute it and/or modify it under
8 * the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 3 of the License, or (at your option)
10 * any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * more details.
16 *
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, see <http://www.gnu.org/licenses/>.
19 *
20 */
21
22 #include "config.h"
23 #include <signal.h>
24 #include <string.h>
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <ctype.h>
28 #include "sis.h"
29 #include <dis-asm.h>
30 #include "sim-config.h"
31 #include <inttypes.h>
32
33
34 #define VAL(x) strtoul(x,(char **)NULL,0)
35
36 extern int current_target_byte_order;
37 struct disassemble_info dinfo;
38 struct pstate sregs;
39 extern struct estate ebase;
40 int ctrl_c = 0;
41 int sis_verbose = 0;
42 char *sis_version = "2.7.5";
43 int nfp = 0;
44 int ift = 0;
45 int wrp = 0;
46 int rom8 = 0;
47 int uben = 0;
48 int termsave;
49 int sparclite = 0; /* emulating SPARClite instructions? */
50 int sparclite_board = 0; /* emulating SPARClite board RAM? */
51 char uart_dev1[128] = "";
52 char uart_dev2[128] = "";
53 extern int ext_irl;
54 uint32 last_load_addr = 0;
55
56 #ifdef ERRINJ
57 uint32 errcnt = 0;
58 uint32 errper = 0;
59 uint32 errtt = 0;
60 uint32 errftt = 0;
61 uint32 errmec = 0;
62 #endif
63
64 /* Forward declarations */
65
66 static int batch (struct pstate *sregs, char *fname);
67 static void set_rega (struct pstate *sregs, char *reg, uint32 rval);
68 static void disp_reg (struct pstate *sregs, char *reg);
69 static uint32 limcalc (float32 freq);
70 static void int_handler (int32 sig);
71 static void init_event (void);
72 static int disp_fpu (struct pstate *sregs);
73 static void disp_regs (struct pstate *sregs, int cwp);
74 static void disp_ctrl (struct pstate *sregs);
75 static void disp_mem (uint32 addr, uint32 len);
76
77 static int
78 batch(sregs, fname)
79 struct pstate *sregs;
80 char *fname;
81 {
82 FILE *fp;
83 char *lbuf = NULL;
84 size_t len = 0;
85 size_t slen;
86
87 if ((fp = fopen(fname, "r")) == NULL) {
88 fprintf(stderr, "couldn't open batch file %s\n", fname);
89 return 0;
90 }
91 while (getline(&lbuf, &len, fp) > -1) {
92 slen = strlen(lbuf);
93 if (slen && (lbuf[slen - 1] == '\n')) {
94 lbuf[slen - 1] = 0;
95 printf("sis> %s\n", lbuf);
96 exec_cmd(sregs, lbuf);
97 }
98 }
99 free(lbuf);
100 fclose(fp);
101 return 1;
102 }
103
104 void
105 set_regi(sregs, reg, rval)
106 struct pstate *sregs;
107 int32 reg;
108 uint32 rval;
109 {
110 uint32 cwp;
111
112 cwp = ((sregs->psr & 0x7) << 4);
113 if ((reg > 0) && (reg < 8)) {
114 sregs->g[reg] = rval;
115 } else if ((reg >= 8) && (reg < 32)) {
116 sregs->r[(cwp + reg) & 0x7f] = rval;
117 } else if ((reg >= 32) && (reg < 64)) {
118 sregs->fsi[reg - 32] = rval;
119 } else {
120 switch (reg) {
121 case 64:
122 sregs->y = rval;
123 break;
124 case 65:
125 sregs->psr = rval;
126 break;
127 case 66:
128 sregs->wim = rval;
129 break;
130 case 67:
131 sregs->tbr = rval;
132 break;
133 case 68:
134 sregs->pc = rval;
135 break;
136 case 69:
137 sregs->npc = rval;
138 break;
139 case 70:
140 sregs->fsr = rval;
141 set_fsr(rval);
142 break;
143 default:break;
144 }
145 }
146 }
147
148 void
149 get_regi(struct pstate * sregs, int32 reg, char *buf)
150 {
151 uint32 cwp;
152 uint32 rval = 0;
153
154 cwp = ((sregs->psr & 0x7) << 4);
155 if ((reg >= 0) && (reg < 8)) {
156 rval = sregs->g[reg];
157 } else if ((reg >= 8) && (reg < 32)) {
158 rval = sregs->r[(cwp + reg) & 0x7f];
159 } else if ((reg >= 32) && (reg < 64)) {
160 rval = sregs->fsi[reg - 32];
161 } else {
162 switch (reg) {
163 case 64:
164 rval = sregs->y;
165 break;
166 case 65:
167 rval = sregs->psr;
168 break;
169 case 66:
170 rval = sregs->wim;
171 break;
172 case 67:
173 rval = sregs->tbr;
174 break;
175 case 68:
176 rval = sregs->pc;
177 break;
178 case 69:
179 rval = sregs->npc;
180 break;
181 case 70:
182 rval = sregs->fsr;
183 break;
184 default:break;
185 }
186 }
187 if (current_target_byte_order == BIG_ENDIAN) {
188 buf[0] = (rval >> 24) & 0x0ff;
189 buf[1] = (rval >> 16) & 0x0ff;
190 buf[2] = (rval >> 8) & 0x0ff;
191 buf[3] = rval & 0x0ff;
192 }
193 else {
194 buf[3] = (rval >> 24) & 0x0ff;
195 buf[2] = (rval >> 16) & 0x0ff;
196 buf[1] = (rval >> 8) & 0x0ff;
197 buf[0] = rval & 0x0ff;
198 }
199 }
200
201
202 static void
203 set_rega(sregs, reg, rval)
204 struct pstate *sregs;
205 char *reg;
206 uint32 rval;
207 {
208 uint32 cwp;
209 int32 err = 0;
210
211 cwp = ((sregs->psr & 0x7) << 4);
212 if (strcmp(reg, "psr") == 0)
213 sregs->psr = (rval = (rval & 0x00f03fff));
214 else if (strcmp(reg, "tbr") == 0)
215 sregs->tbr = (rval = (rval & 0xfffffff0));
216 else if (strcmp(reg, "wim") == 0)
217 sregs->wim = (rval = (rval & 0x0ff));
218 else if (strcmp(reg, "y") == 0)
219 sregs->y = rval;
220 else if (strcmp(reg, "pc") == 0)
221 sregs->pc = rval;
222 else if (strcmp(reg, "npc") == 0)
223 sregs->npc = rval;
224 else if (strcmp(reg, "fsr") == 0) {
225 sregs->fsr = rval;
226 set_fsr(rval);
227 } else if (strcmp(reg, "g0") == 0)
228 err = 2;
229 else if (strcmp(reg, "g1") == 0)
230 sregs->g[1] = rval;
231 else if (strcmp(reg, "g2") == 0)
232 sregs->g[2] = rval;
233 else if (strcmp(reg, "g3") == 0)
234 sregs->g[3] = rval;
235 else if (strcmp(reg, "g4") == 0)
236 sregs->g[4] = rval;
237 else if (strcmp(reg, "g5") == 0)
238 sregs->g[5] = rval;
239 else if (strcmp(reg, "g6") == 0)
240 sregs->g[6] = rval;
241 else if (strcmp(reg, "g7") == 0)
242 sregs->g[7] = rval;
243 else if (strcmp(reg, "o0") == 0)
244 sregs->r[(cwp + 8) & 0x7f] = rval;
245 else if (strcmp(reg, "o1") == 0)
246 sregs->r[(cwp + 9) & 0x7f] = rval;
247 else if (strcmp(reg, "o2") == 0)
248 sregs->r[(cwp + 10) & 0x7f] = rval;
249 else if (strcmp(reg, "o3") == 0)
250 sregs->r[(cwp + 11) & 0x7f] = rval;
251 else if (strcmp(reg, "o4") == 0)
252 sregs->r[(cwp + 12) & 0x7f] = rval;
253 else if (strcmp(reg, "o5") == 0)
254 sregs->r[(cwp + 13) & 0x7f] = rval;
255 else if (strcmp(reg, "o6") == 0)
256 sregs->r[(cwp + 14) & 0x7f] = rval;
257 else if (strcmp(reg, "o7") == 0)
258 sregs->r[(cwp + 15) & 0x7f] = rval;
259 else if (strcmp(reg, "l0") == 0)
260 sregs->r[(cwp + 16) & 0x7f] = rval;
261 else if (strcmp(reg, "l1") == 0)
262 sregs->r[(cwp + 17) & 0x7f] = rval;
263 else if (strcmp(reg, "l2") == 0)
264 sregs->r[(cwp + 18) & 0x7f] = rval;
265 else if (strcmp(reg, "l3") == 0)
266 sregs->r[(cwp + 19) & 0x7f] = rval;
267 else if (strcmp(reg, "l4") == 0)
268 sregs->r[(cwp + 20) & 0x7f] = rval;
269 else if (strcmp(reg, "l5") == 0)
270 sregs->r[(cwp + 21) & 0x7f] = rval;
271 else if (strcmp(reg, "l6") == 0)
272 sregs->r[(cwp + 22) & 0x7f] = rval;
273 else if (strcmp(reg, "l7") == 0)
274 sregs->r[(cwp + 23) & 0x7f] = rval;
275 else if (strcmp(reg, "i0") == 0)
276 sregs->r[(cwp + 24) & 0x7f] = rval;
277 else if (strcmp(reg, "i1") == 0)
278 sregs->r[(cwp + 25) & 0x7f] = rval;
279 else if (strcmp(reg, "i2") == 0)
280 sregs->r[(cwp + 26) & 0x7f] = rval;
281 else if (strcmp(reg, "i3") == 0)
282 sregs->r[(cwp + 27) & 0x7f] = rval;
283 else if (strcmp(reg, "i4") == 0)
284 sregs->r[(cwp + 28) & 0x7f] = rval;
285 else if (strcmp(reg, "i5") == 0)
286 sregs->r[(cwp + 29) & 0x7f] = rval;
287 else if (strcmp(reg, "i6") == 0)
288 sregs->r[(cwp + 30) & 0x7f] = rval;
289 else if (strcmp(reg, "i7") == 0)
290 sregs->r[(cwp + 31) & 0x7f] = rval;
291 else
292 err = 1;
293 switch (err) {
294 case 0:
295 printf("%s = %d (0x%08x)\n", reg, rval, rval);
296 break;
297 case 1:
298 printf("no such regiser: %s\n", reg);
299 break;
300 case 2:
301 printf("cannot set g0\n");
302 break;
303 default:
304 break;
305 }
306
307 }
308
309 static void
310 disp_reg(sregs, reg)
311 struct pstate *sregs;
312 char *reg;
313 {
314 if (strncmp(reg, "w",1) == 0)
315 disp_regs(sregs, VAL(&reg[1]));
316 }
317
318 #ifdef ERRINJ
319
320 void
321 errinj()
322 {
323 int err;
324
325 switch (err = (random() % 12)) {
326 case 0: errtt = 0x61; break;
327 case 1: errtt = 0x62; break;
328 case 2: errtt = 0x63; break;
329 case 3: errtt = 0x64; break;
330 case 4: errtt = 0x65; break;
331 case 5:
332 case 6:
333 case 7: errftt = err;
334 break;
335 case 8: errmec = 1; break;
336 case 9: errmec = 2; break;
337 case 10: errmec = 5; break;
338 case 11: errmec = 6; break;
339 }
340 errcnt++;
341 if (errper) event(errinj, 0, (random()%errper));
342 }
343
344 void
345 errinjstart()
346 {
347 if (errper) event(errinj, 0, (random()%errper));
348 }
349
350 #endif
351
352 static uint32
353 limcalc (freq)
354 float32 freq;
355 {
356 uint32 unit, lim;
357 double flim;
358 char *cmd1, *cmd2;
359
360 unit = 1;
361 lim = -1;
362 if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
363 lim = VAL(cmd1);
364 if ((cmd2 = strtok(NULL, " \t\n\r")) != NULL) {
365 if (strcmp(cmd2,"us")==0) unit = 1;
366 if (strcmp(cmd2,"ms")==0) unit = 1000;
367 if (strcmp(cmd2,"s")==0) unit = 1000000;
368 }
369 flim = (double) lim * (double) unit * (double) freq +
370 (double) ebase.simtime;
371 if ((flim > ebase.simtime) && (flim < 4294967296.0)) {
372 lim = (uint32) flim;
373 } else {
374 printf("error in expression\n");
375 lim = -1;
376 }
377 }
378 return lim;
379 }
380
381 int
382 exec_cmd(sregs, cmd)
383 char *cmd;
384 struct pstate *sregs;
385 {
386 char *cmd1, *cmd2;
387 int32 stat;
388 uint32 len, i, clen, j;
389 static uint32 daddr = 0;
390 char *cmdsave;
391
392 stat = OK;
393 cmdsave = strdup(cmd);
394 if ((cmd1 = strtok(cmd, " \t")) != NULL) {
395 clen = strlen(cmd1);
396 if (strncmp(cmd1, "bp", clen) == 0) {
397 for (i = 0; i < sregs->bptnum; i++) {
398 printf(" %d : 0x%08x\n", i + 1, sregs->bpts[i]);
399 }
400 } else if (strncmp(cmd1, "+bp", clen) == 0) {
401 if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
402 sregs->bpts[sregs->bptnum] = VAL(cmd1) & ~0x3;
403 printf("added breakpoint %d at 0x%08x\n",
404 sregs->bptnum + 1, sregs->bpts[sregs->bptnum]);
405 sregs->bptnum += 1;
406 }
407 } else if (strncmp(cmd1, "-bp", clen) == 0) {
408 if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
409 i = VAL(cmd1) - 1;
410 if ((i >= 0) && (i < sregs->bptnum)) {
411 printf("deleted breakpoint %d at 0x%08x\n", i + 1,
412 sregs->bpts[i]);
413 for (; i < sregs->bptnum - 1; i++) {
414 sregs->bpts[i] = sregs->bpts[i + 1];
415 }
416 sregs->bptnum -= 1;
417 }
418 }
419 } else if (strncmp(cmd1, "batch", clen) == 0) {
420 if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) {
421 printf("no file specified\n");
422 } else {
423 batch(sregs, cmd1);
424 }
425 } else if (strncmp(cmd1, "cont", clen) == 0) {
426 if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) {
427 stat = run_sim(sregs, UINT64_MAX, 0);
428 } else {
429 stat = run_sim(sregs, VAL(cmd1), 0);
430 }
431 daddr = sregs->pc;
432 sim_halt();
433 } else if (strncmp(cmd1, "debug", clen) == 0) {
434 if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
435 sis_verbose = VAL(cmd1);
436 }
437 printf("Debug level = %d\n",sis_verbose);
438 } else if (strncmp(cmd1, "dis", clen) == 0) {
439 if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
440 daddr = VAL(cmd1);
441 }
442 if ((cmd2 = strtok(NULL, " \t\n\r")) != NULL) {
443 len = VAL(cmd2);
444 } else
445 len = 16;
446 printf("\n");
447 dis_mem(daddr, len, &dinfo);
448 printf("\n");
449 daddr += len * 4;
450 } else if (strncmp(cmd1, "echo", clen) == 0) {
451 if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
452 printf("%s\n", (&cmdsave[clen+1]));
453 }
454 #ifdef ERRINJ
455 } else if (strncmp(cmd1, "error", clen) == 0) {
456 if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
457 errper = VAL(cmd1);
458 if (errper) {
459 event(errinj, 0, (len = (random()%errper)));
460 printf("Error injection started with period %d\n",len);
461 }
462 } else printf("Injected errors: %d\n",errcnt);
463 #endif
464 } else if (strncmp(cmd1, "float", clen) == 0) {
465 stat = disp_fpu(sregs);
466 } else if (strncmp(cmd1, "go", clen) == 0) {
467 if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) {
468 len = last_load_addr;
469 } else {
470 len = VAL(cmd1);
471 }
472 sregs->pc = len & ~3;
473 sregs->npc = sregs->pc + 4;
474 if ((sregs->pc != 0) && (ebase.simtime == 0))
475 boot_init();
476 printf("resuming at 0x%08x\n",sregs->pc);
477 if ((cmd2 = strtok(NULL, " \t\n\r")) != NULL) {
478 stat = run_sim(sregs, VAL(cmd2), 0);
479 } else {
480 stat = run_sim(sregs, UINT64_MAX, 0);
481 }
482 daddr = sregs->pc;
483 sim_halt();
484 } else if (strncmp(cmd1, "help", clen) == 0) {
485 gen_help();
486 } else if (strncmp(cmd1, "history", clen) == 0) {
487 if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
488 sregs->histlen = VAL(cmd1);
489 if (sregs->histbuf != NULL)
490 free(sregs->histbuf);
491 sregs->histbuf = (struct histype *) calloc(sregs->histlen, sizeof(struct histype));
492 printf("trace history length = %d\n\r", sregs->histlen);
493 sregs->histind = 0;
494
495 } else {
496 j = sregs->histind;
497 for (i = 0; i < sregs->histlen; i++) {
498 if (j >= sregs->histlen)
499 j = 0;
500 printf(" %8d ", sregs->histbuf[j].time);
501 dis_mem(sregs->histbuf[j].addr, 1, &dinfo);
502 j++;
503 }
504 }
505
506 } else if (strncmp(cmd1, "load", clen) == 0) {
507 if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
508 last_load_addr = bfd_load(cmd1);
509 while ((cmd1 = strtok(NULL, " \t\n\r")) != NULL)
510 last_load_addr = bfd_load(cmd1);
511 } else {
512 printf("load: no file specified\n");
513 }
514 } else if (strncmp(cmd1, "mem", clen) == 0) {
515 if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL)
516 daddr = VAL(cmd1);
517 if ((cmd2 = strtok(NULL, " \t\n\r")) != NULL)
518 len = VAL(cmd2);
519 else
520 len = 64;
521 disp_mem(daddr, len);
522 daddr += len;
523 } else if (strncmp(cmd1, "perf", clen) == 0) {
524 cmd1 = strtok(NULL, " \t\n\r");
525 if ((cmd1 != NULL) &&
526 (strncmp(cmd1, "reset", strlen(cmd1)) == 0)) {
527 reset_stat(sregs);
528 } else
529 show_stat(sregs);
530 } else if (strncmp(cmd1, "quit", clen) == 0) {
531 exit(0);
532 } else if (strncmp(cmd1, "reg", clen) == 0) {
533 cmd1 = strtok(NULL, " \t\n\r");
534 cmd2 = strtok(NULL, " \t\n\r");
535 if (cmd2 != NULL)
536 set_rega(sregs, cmd1, VAL(cmd2));
537 else if (cmd1 != NULL)
538 disp_reg(sregs, cmd1);
539 else {
540 disp_regs(sregs,sregs->psr);
541 disp_ctrl(sregs);
542 }
543 } else if (strncmp(cmd1, "reset", clen) == 0) {
544 ebase.simtime = 0;
545 reset_all();
546 reset_stat(sregs);
547 } else if (strncmp(cmd1, "run", clen) == 0) {
548 ebase.simtime = 0;
549 reset_all();
550 reset_stat(sregs);
551 if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) {
552 stat = run_sim(sregs, UINT64_MAX, 0);
553 } else {
554 stat = run_sim(sregs, VAL(cmd1), 0);
555 }
556 daddr = sregs->pc;
557 sim_halt();
558 } else if (strncmp(cmd1, "shell", clen) == 0) {
559 if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) {
560 if (system(&cmdsave[clen])) {
561 /* Silence unused return value warning. */
562 }
563 }
564 } else if (strncmp(cmd1, "step", clen) == 0) {
565 stat = run_sim(sregs, 1, 1);
566 daddr = sregs->pc;
567 sim_halt();
568 } else if (strncmp(cmd1, "tcont", clen) == 0) {
569 sregs->tlimit = limcalc(sregs->freq);
570 stat = run_sim(sregs, UINT64_MAX, 0);
571 daddr = sregs->pc;
572 sim_halt();
573 } else if (strncmp(cmd1, "tgo", clen) == 0) {
574 if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) {
575 len = last_load_addr;
576 } else {
577 len = VAL(cmd1);
578 sregs->tlimit = limcalc(sregs->freq);
579 }
580 sregs->pc = len & ~3;
581 sregs->npc = sregs->pc + 4;
582 printf("resuming at 0x%08x\n",sregs->pc);
583 stat = run_sim(sregs, UINT64_MAX, 0);
584 daddr = sregs->pc;
585 sim_halt();
586 } else if (strncmp(cmd1, "tlimit", clen) == 0) {
587 sregs->tlimit = limcalc(sregs->freq);
588 if (sregs->tlimit != (uint32) -1)
589 printf("simulation limit = %u (%.3f ms)\n",(uint32) sregs->tlimit,
590 sregs->tlimit / sregs->freq / 1000);
591 } else if (strncmp(cmd1, "tra", clen) == 0) {
592 if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) {
593 stat = run_sim(sregs, UINT64_MAX, 1);
594 } else {
595 stat = run_sim(sregs, VAL(cmd1), 1);
596 }
597 printf("\n");
598 daddr = sregs->pc;
599 sim_halt();
600 } else if (strncmp(cmd1, "trun", clen) == 0) {
601 ebase.simtime = 0;
602 reset_all();
603 reset_stat(sregs);
604 sregs->tlimit = limcalc(sregs->freq);
605 stat = run_sim(sregs, UINT64_MAX, 0);
606 daddr = sregs->pc;
607 sim_halt();
608 } else
609 printf("syntax error\n");
610 }
611 if (cmdsave != NULL)
612 free(cmdsave);
613 return stat;
614 }
615
616
617 void
618 reset_stat(sregs)
619 struct pstate *sregs;
620 {
621 sregs->tottime = 0.0;
622 sregs->pwdtime = 0;
623 sregs->ninst = 0;
624 sregs->fholdt = 0;
625 sregs->holdt = 0;
626 sregs->icntt = 0;
627 sregs->finst = 0;
628 sregs->nstore = 0;
629 sregs->nload = 0;
630 sregs->nbranch = 0;
631 sregs->simstart = ebase.simtime;
632
633 }
634
635 void
636 show_stat(sregs)
637 struct pstate *sregs;
638 {
639 uint32 iinst;
640 uint32 stime;
641
642 if (sregs->tottime == 0.0)
643 sregs->tottime += 1E-6;
644 stime = ebase.simtime - sregs->simstart; /* Total simulated time */
645 #ifdef STAT
646
647 iinst = sregs->ninst - sregs->finst - sregs->nload - sregs->nstore -
648 sregs->nbranch;
649 #endif
650
651 printf("\n Cycles : %9" PRIu64 "\n\r", ebase.simtime - sregs->simstart);
652 printf(" Instructions : %9" PRIu64 "\n", sregs->ninst);
653
654 #ifdef STAT
655 printf(" integer : %9.2f %%\n", 100.0 * (float) iinst / (float) sregs->ninst);
656 printf(" load : %9.2f %%\n",
657 100.0 * (float) sregs->nload / (float) sregs->ninst);
658 printf(" store : %9.2f %%\n",
659 100.0 * (float) sregs->nstore / (float) sregs->ninst);
660 printf(" branch : %9.2f %%\n",
661 100.0 * (float) sregs->nbranch / (float) sregs->ninst);
662 printf(" float : %9.2f %%\n",
663 100.0 * (float) sregs->finst / (float) sregs->ninst);
664 printf(" Integer CPI : %9.2f\n",
665 ((float) (stime - sregs->pwdtime - sregs->fholdt - sregs->finst))
666 /
667 (float) (sregs->ninst - sregs->finst));
668 printf(" Float CPI : %9.2f\n",
669 ((float) sregs->fholdt / (float) sregs->finst) + 1.0);
670 #endif
671 printf(" Overall CPI : %9.2f\n",
672 (float) (stime - sregs->pwdtime) / (float) sregs->ninst);
673 printf("\n ERC32 performance (%4.1f MHz): %5.2f MOPS (%5.2f MIPS, %5.2f MFLOPS)\n",
674 sregs->freq, sregs->freq * (float) sregs->ninst / (float) (stime - sregs->pwdtime),
675 sregs->freq * (float) (sregs->ninst - sregs->finst) /
676 (float) (stime - sregs->pwdtime),
677 sregs->freq * (float) sregs->finst / (float) (stime - sregs->pwdtime));
678 printf(" Simulated ERC32 time : %.2f s\n",
679 (float) (ebase.simtime - sregs->simstart) / 1000000.0 / sregs->freq);
680 printf(" Processor utilisation : %.2f %%\n",
681 100.0 * (1.0 - ((float) sregs->pwdtime / (float) stime)));
682 printf(" Real-time performance : %.2f %%\n",
683 100.0 / (sregs->tottime / ((double) (stime) / (sregs->freq * 1.0E6))));
684 printf(" Simulator performance : %.2f MIPS\n",
685 (double)(sregs->ninst) / sregs->tottime / 1E6);
686 printf(" Used time (sys + user) : %.2f s\n\n", sregs->tottime);
687 }
688
689
690
691 void
692 init_bpt(sregs)
693 struct pstate *sregs;
694 {
695 sregs->bptnum = 0;
696 sregs->histlen = 0;
697 sregs->histind = 0;
698 sregs->histbuf = NULL;
699 sregs->tlimit = -1;
700 }
701
702 static void
703 int_handler(sig)
704 int32 sig;
705 {
706 if (sig != 2)
707 printf("\n\n Signal handler error (%d)\n\n", sig);
708 ctrl_c = 1;
709 }
710
711 void
712 init_signals()
713 {
714 typedef void (*PFI) ();
715 static PFI int_tab[2];
716
717 int_tab[0] = signal(SIGTERM, int_handler);
718 int_tab[1] = signal(SIGINT, int_handler);
719 }
720
721
722 extern struct disassemble_info dinfo;
723
724 struct estate ebase;
725 struct evcell evbuf[EVENT_MAX];
726 struct irqcell irqarr[16];
727
728 static int
729 disp_fpu(sregs)
730 struct pstate *sregs;
731 {
732
733 int i;
734 float t;
735
736 printf("\n fsr: %08X\n\n", sregs->fsr);
737
738 #ifdef HOST_LITTLE_ENDIAN
739 for (i = 0; i < 32; i++)
740 sregs->fdp[i ^ 1] = sregs->fs[i];
741 #endif
742
743 for (i = 0; i < 32; i++) {
744 t = sregs->fs[i];
745 printf(" f%02d %08x %14e ", i, sregs->fsi[i], sregs->fs[i]);
746 if (!(i & 1))
747 printf("%14e\n", sregs->fd[i >> 1]);
748 else
749 printf("\n");
750 }
751 printf("\n");
752 return OK;
753 }
754
755 static void
756 disp_regs(sregs,cwp)
757 struct pstate *sregs;
758 int cwp;
759 {
760
761 int i;
762
763 cwp = ((cwp & 0x7) << 4);
764 printf("\n\t INS LOCALS OUTS GLOBALS\n");
765 for (i = 0; i < 8; i++) {
766 printf(" %d: %08X %08X %08X %08X\n", i,
767 sregs->r[(cwp + i + 24) & 0x7f],
768 sregs->r[(cwp + i + 16) & 0x7f], sregs->r[(cwp + i + 8) & 0x7f],
769 sregs->g[i]);
770 }
771 }
772
773 static void print_insn_sparc_sis(uint32 addr, struct disassemble_info *info)
774 {
775 unsigned char i[4];
776
777 sis_memory_read(addr, i, 4);
778 dinfo.buffer_vma = addr;
779 dinfo.buffer_length = 4;
780 dinfo.buffer = i;
781 print_insn_sparc(addr, info);
782 }
783
784 static void
785 disp_ctrl(sregs)
786 struct pstate *sregs;
787 {
788
789 unsigned char i[4];
790
791 printf("\n psr: %08X wim: %08X tbr: %08X y: %08X\n",
792 sregs->psr, sregs->wim, sregs->tbr, sregs->y);
793 sis_memory_read(sregs->pc, i, 4);
794 printf("\n pc: %08X = %02X%02X%02X%02X ", sregs->pc,i[0],i[1],i[2],i[3]);
795 print_insn_sparc_sis(sregs->pc, &dinfo);
796 sis_memory_read(sregs->npc, i, 4);
797 printf("\n npc: %08X = %02X%02X%02X%02X ",sregs->npc,i[0],i[1],i[2],i[3]);
798 print_insn_sparc_sis(sregs->npc, &dinfo);
799 if (sregs->err_mode)
800 printf("\n IU in error mode");
801 printf("\n\n");
802 }
803
804 static void
805 disp_mem(addr, len)
806 uint32 addr;
807 uint32 len;
808 {
809
810 uint32 i;
811 unsigned char data[4];
812 uint32 mem[4], j;
813 char *p;
814
815 for (i = addr & ~3; i < ((addr + len) & ~3); i += 16) {
816 printf("\n %8X ", i);
817 for (j = 0; j < 4; j++) {
818 sis_memory_read((i + (j * 4)), data, 4);
819 printf("%02x%02x%02x%02x ", data[0],data[1],data[2],data[3]);
820 mem[j] = *((int *) &data);
821 }
822 printf(" ");
823 p = (char *) mem;
824 for (j = 0; j < 16; j++) {
825 if (isprint(p[j]))
826 putchar(p[j]);
827 else
828 putchar('.');
829 }
830 }
831 printf("\n\n");
832 }
833
834 void
835 dis_mem(addr, len, info)
836 uint32 addr;
837 uint32 len;
838 struct disassemble_info *info;
839 {
840 uint32 i;
841 unsigned char data[4];
842
843 for (i = addr & -3; i < ((addr & -3) + (len << 2)); i += 4) {
844 sis_memory_read(i, data, 4);
845 printf(" %08x %02x%02x%02x%02x ", i, data[0],data[1],data[2],data[3]);
846 print_insn_sparc_sis(i, info);
847 if (i >= 0xfffffffc) break;
848 printf("\n");
849 }
850 }
851
852 /* Add event to event queue */
853
854 void
855 event(cfunc, arg, delta)
856 void (*cfunc) ();
857 int32 arg;
858 uint64 delta;
859 {
860 struct evcell *ev1, *evins;
861
862 if (ebase.freeq == NULL) {
863 printf("Error, too many events in event queue\n");
864 return;
865 }
866 ev1 = &ebase.eq;
867 delta += ebase.simtime;
868 while ((ev1->nxt != NULL) && (ev1->nxt->time <= delta)) {
869 ev1 = ev1->nxt;
870 }
871 if (ev1->nxt == NULL) {
872 ev1->nxt = ebase.freeq;
873 ebase.freeq = ebase.freeq->nxt;
874 ev1->nxt->nxt = NULL;
875 } else {
876 evins = ebase.freeq;
877 ebase.freeq = ebase.freeq->nxt;
878 evins->nxt = ev1->nxt;
879 ev1->nxt = evins;
880 }
881 ev1->nxt->time = delta;
882 ev1->nxt->cfunc = cfunc;
883 ev1->nxt->arg = arg;
884 }
885
886 #if 0 /* apparently not used */
887 void
888 stop_event()
889 {
890 }
891 #endif
892
893 void
894 init_event()
895 {
896 int32 i;
897
898 ebase.eq.nxt = NULL;
899 ebase.freeq = evbuf;
900 for (i = 0; i < EVENT_MAX; i++) {
901 evbuf[i].nxt = &evbuf[i + 1];
902 }
903 evbuf[EVENT_MAX - 1].nxt = NULL;
904 }
905
906 void
907 set_int(level, callback, arg)
908 int32 level;
909 void (*callback) ();
910 int32 arg;
911 {
912 irqarr[level & 0x0f].callback = callback;
913 irqarr[level & 0x0f].arg = arg;
914 }
915
916 /* Advance simulator time */
917
918 void
919 advance_time(sregs)
920 struct pstate *sregs;
921 {
922
923 struct evcell *evrem;
924 void (*cfunc) ();
925 uint32 arg;
926 uint64 endtime;
927
928 #ifdef STAT
929 sregs->fholdt += sregs->fhold;
930 sregs->holdt += sregs->hold;
931 sregs->icntt += sregs->icnt;
932 #endif
933
934 endtime = ebase.simtime + sregs->icnt + sregs->hold + sregs->fhold;
935
936 while ((ebase.eq.nxt->time <= (endtime)) && (ebase.eq.nxt != NULL)) {
937 ebase.simtime = ebase.eq.nxt->time;
938 cfunc = ebase.eq.nxt->cfunc;
939 arg = ebase.eq.nxt->arg;
940 evrem = ebase.eq.nxt;
941 ebase.eq.nxt = ebase.eq.nxt->nxt;
942 evrem->nxt = ebase.freeq;
943 ebase.freeq = evrem;
944 cfunc(arg);
945 }
946 ebase.simtime = endtime;
947
948 }
949
950 uint32
951 now()
952 {
953 return ebase.simtime;
954 }
955
956
957 /* Advance time until an external interrupt is seen */
958
959 int
960 wait_for_irq()
961 {
962 struct evcell *evrem;
963 void (*cfunc) ();
964 int32 arg;
965 uint64 endtime;
966
967 if (ebase.eq.nxt == NULL)
968 printf("Warning: event queue empty - power-down mode not entered\n");
969 endtime = ebase.simtime;
970 while (!ext_irl && (ebase.eq.nxt != NULL)) {
971 ebase.simtime = ebase.eq.nxt->time;
972 cfunc = ebase.eq.nxt->cfunc;
973 arg = ebase.eq.nxt->arg;
974 evrem = ebase.eq.nxt;
975 ebase.eq.nxt = ebase.eq.nxt->nxt;
976 evrem->nxt = ebase.freeq;
977 ebase.freeq = evrem;
978 cfunc(arg);
979 if (ctrl_c) {
980 printf("\bwarning: power-down mode interrupted\n");
981 break;
982 }
983 }
984 sregs.pwdtime += ebase.simtime - endtime;
985 return ebase.simtime - endtime;
986 }
987
988 int
989 check_bpt(sregs)
990 struct pstate *sregs;
991 {
992 int32 i;
993
994 if ((sregs->bphit) || (sregs->annul))
995 return 0;
996 for (i = 0; i < (int32) sregs->bptnum; i++) {
997 if (sregs->pc == sregs->bpts[i])
998 return BPT_HIT;
999 }
1000 return 0;
1001 }
1002
1003 void
1004 reset_all()
1005 {
1006 init_event(); /* Clear event queue */
1007 init_regs(&sregs);
1008 reset();
1009 #ifdef ERRINJ
1010 errinjstart();
1011 #endif
1012 }
1013
1014 void
1015 sys_reset()
1016 {
1017 reset_all();
1018 sregs.trap = 256; /* Force fake reset trap */
1019 }
1020
1021 void
1022 sys_halt()
1023 {
1024 sregs.trap = 257; /* Force fake halt trap */
1025 }
1026
1027 #include "ansidecl.h"
1028
1029 #include <stdarg.h>
1030
1031 #include "libiberty.h"
1032 #include "bfd.h"
1033
1034 #define min(A, B) (((A) < (B)) ? (A) : (B))
1035 #define LOAD_ADDRESS 0
1036
1037 int
1038 bfd_load(fname)
1039 char *fname;
1040 {
1041 asection *section;
1042 bfd *pbfd;
1043 const bfd_arch_info_type *arch;
1044
1045 pbfd = bfd_openr(fname, 0);
1046
1047 if (pbfd == NULL) {
1048 printf("open of %s failed\n", fname);
1049 return -1;
1050 }
1051 if (!bfd_check_format(pbfd, bfd_object)) {
1052 printf("file %s doesn't seem to be an object file\n", fname);
1053 return -1;
1054 }
1055
1056 arch = bfd_get_arch_info (pbfd);
1057 if (bfd_little_endian (pbfd) || arch->mach == bfd_mach_sparc_sparclite_le)
1058 current_target_byte_order = LITTLE_ENDIAN;
1059 else
1060 current_target_byte_order = BIG_ENDIAN;
1061 if (sis_verbose)
1062 printf("file %s is %s-endian.\n", fname,
1063 current_target_byte_order == BIG_ENDIAN ? "big" : "little");
1064
1065 if (sis_verbose)
1066 printf("loading %s:", fname);
1067 for (section = pbfd->sections; section; section = section->next) {
1068 if (bfd_get_section_flags(pbfd, section) & SEC_ALLOC) {
1069 bfd_vma section_address;
1070 unsigned long section_size;
1071 const char *section_name;
1072
1073 section_name = bfd_get_section_name(pbfd, section);
1074
1075 section_address = bfd_get_section_vma(pbfd, section);
1076 /*
1077 * Adjust sections from a.out files, since they don't carry their
1078 * addresses with.
1079 */
1080 if (bfd_get_flavour(pbfd) == bfd_target_aout_flavour) {
1081 if (strcmp (section_name, ".text") == 0)
1082 section_address = bfd_get_start_address (pbfd);
1083 else if (strcmp (section_name, ".data") == 0) {
1084 /* Read the first 8 bytes of the data section.
1085 There should be the string 'DaTa' followed by
1086 a word containing the actual section address. */
1087 struct data_marker
1088 {
1089 char signature[4]; /* 'DaTa' */
1090 unsigned char sdata[4]; /* &sdata */
1091 } marker;
1092 bfd_get_section_contents (pbfd, section, &marker, 0,
1093 sizeof (marker));
1094 if (strncmp (marker.signature, "DaTa", 4) == 0)
1095 {
1096 if (current_target_byte_order == BIG_ENDIAN)
1097 section_address = bfd_getb32 (marker.sdata);
1098 else
1099 section_address = bfd_getl32 (marker.sdata);
1100 }
1101 }
1102 }
1103
1104 section_size = bfd_section_size(pbfd, section);
1105
1106 if (sis_verbose)
1107 printf("\nsection %s at 0x%08lx (0x%lx bytes)",
1108 section_name, section_address, section_size);
1109
1110 /* Text, data or lit */
1111 if (bfd_get_section_flags(pbfd, section) & SEC_LOAD) {
1112 file_ptr fptr;
1113
1114 fptr = 0;
1115
1116 while (section_size > 0) {
1117 char buffer[1024];
1118 int count;
1119
1120 count = min(section_size, 1024);
1121
1122 bfd_get_section_contents(pbfd, section, buffer, fptr, count);
1123
1124 sis_memory_write(section_address, buffer, count);
1125
1126 section_address += count;
1127 fptr += count;
1128 section_size -= count;
1129 }
1130 } else /* BSS */
1131 if (sis_verbose)
1132 printf("(not loaded)");
1133 }
1134 }
1135 if (sis_verbose)
1136 printf("\n");
1137
1138 return bfd_get_start_address (pbfd);
1139 }
1140
1141 double get_time (void)
1142 {
1143 double usec;
1144
1145 struct timeval tm;
1146
1147 gettimeofday (&tm, NULL);
1148 usec = ((double) tm.tv_sec) * 1E6 + ((double) tm.tv_usec);
1149 return usec / 1E6;
1150 }
GDB Binutils - Deliverables
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