2 * func.c, misc simulator functions. This file is part of SIS.
4 * SIS, SPARC instruction simulator V1.8 Copyright (C) 1995 Jiri Gaisler,
5 * European Space Agency
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)
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
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/>.
30 #include "sim-config.h"
33 #define VAL(x) strtoul(x,(char **)NULL,0)
35 struct disassemble_info dinfo
;
37 extern struct estate ebase
;
40 char *sis_version
= "2.7.5";
47 int sparclite
= 0; /* emulating SPARClite instructions? */
48 int sparclite_board
= 0; /* emulating SPARClite board RAM? */
49 char uart_dev1
[128] = "";
50 char uart_dev2
[128] = "";
52 uint32 last_load_addr
= 0;
62 /* Forward declarations */
64 static int batch (struct pstate
*sregs
, char *fname
);
65 static void set_rega (struct pstate
*sregs
, char *reg
, uint32 rval
);
66 static void disp_reg (struct pstate
*sregs
, char *reg
);
67 static uint32
limcalc (float32 freq
);
68 static void int_handler (int32 sig
);
69 static void init_event (void);
70 static int disp_fpu (struct pstate
*sregs
);
71 static void disp_regs (struct pstate
*sregs
, int cwp
);
72 static void disp_ctrl (struct pstate
*sregs
);
73 static void disp_mem (uint32 addr
, uint32 len
);
85 if ((fp
= fopen(fname
, "r")) == NULL
) {
86 fprintf(stderr
, "couldn't open batch file %s\n", fname
);
89 while (getline(&lbuf
, &len
, fp
) > -1) {
91 if (slen
&& (lbuf
[slen
- 1] == '\n')) {
93 printf("sis> %s\n", lbuf
);
94 exec_cmd(sregs
, lbuf
);
103 set_regi(sregs
, reg
, rval
)
104 struct pstate
*sregs
;
110 cwp
= ((sregs
->psr
& 0x7) << 4);
111 if ((reg
> 0) && (reg
< 8)) {
112 sregs
->g
[reg
] = rval
;
113 } else if ((reg
>= 8) && (reg
< 32)) {
114 sregs
->r
[(cwp
+ reg
) & 0x7f] = rval
;
115 } else if ((reg
>= 32) && (reg
< 64)) {
116 sregs
->fsi
[reg
- 32] = rval
;
147 get_regi(struct pstate
* sregs
, int32 reg
, char *buf
)
152 cwp
= ((sregs
->psr
& 0x7) << 4);
153 if ((reg
>= 0) && (reg
< 8)) {
154 rval
= sregs
->g
[reg
];
155 } else if ((reg
>= 8) && (reg
< 32)) {
156 rval
= sregs
->r
[(cwp
+ reg
) & 0x7f];
157 } else if ((reg
>= 32) && (reg
< 64)) {
158 rval
= sregs
->fsi
[reg
- 32];
185 buf
[0] = (rval
>> 24) & 0x0ff;
186 buf
[1] = (rval
>> 16) & 0x0ff;
187 buf
[2] = (rval
>> 8) & 0x0ff;
188 buf
[3] = rval
& 0x0ff;
193 set_rega(sregs
, reg
, rval
)
194 struct pstate
*sregs
;
201 cwp
= ((sregs
->psr
& 0x7) << 4);
202 if (strcmp(reg
, "psr") == 0)
203 sregs
->psr
= (rval
= (rval
& 0x00f03fff));
204 else if (strcmp(reg
, "tbr") == 0)
205 sregs
->tbr
= (rval
= (rval
& 0xfffffff0));
206 else if (strcmp(reg
, "wim") == 0)
207 sregs
->wim
= (rval
= (rval
& 0x0ff));
208 else if (strcmp(reg
, "y") == 0)
210 else if (strcmp(reg
, "pc") == 0)
212 else if (strcmp(reg
, "npc") == 0)
214 else if (strcmp(reg
, "fsr") == 0) {
217 } else if (strcmp(reg
, "g0") == 0)
219 else if (strcmp(reg
, "g1") == 0)
221 else if (strcmp(reg
, "g2") == 0)
223 else if (strcmp(reg
, "g3") == 0)
225 else if (strcmp(reg
, "g4") == 0)
227 else if (strcmp(reg
, "g5") == 0)
229 else if (strcmp(reg
, "g6") == 0)
231 else if (strcmp(reg
, "g7") == 0)
233 else if (strcmp(reg
, "o0") == 0)
234 sregs
->r
[(cwp
+ 8) & 0x7f] = rval
;
235 else if (strcmp(reg
, "o1") == 0)
236 sregs
->r
[(cwp
+ 9) & 0x7f] = rval
;
237 else if (strcmp(reg
, "o2") == 0)
238 sregs
->r
[(cwp
+ 10) & 0x7f] = rval
;
239 else if (strcmp(reg
, "o3") == 0)
240 sregs
->r
[(cwp
+ 11) & 0x7f] = rval
;
241 else if (strcmp(reg
, "o4") == 0)
242 sregs
->r
[(cwp
+ 12) & 0x7f] = rval
;
243 else if (strcmp(reg
, "o5") == 0)
244 sregs
->r
[(cwp
+ 13) & 0x7f] = rval
;
245 else if (strcmp(reg
, "o6") == 0)
246 sregs
->r
[(cwp
+ 14) & 0x7f] = rval
;
247 else if (strcmp(reg
, "o7") == 0)
248 sregs
->r
[(cwp
+ 15) & 0x7f] = rval
;
249 else if (strcmp(reg
, "l0") == 0)
250 sregs
->r
[(cwp
+ 16) & 0x7f] = rval
;
251 else if (strcmp(reg
, "l1") == 0)
252 sregs
->r
[(cwp
+ 17) & 0x7f] = rval
;
253 else if (strcmp(reg
, "l2") == 0)
254 sregs
->r
[(cwp
+ 18) & 0x7f] = rval
;
255 else if (strcmp(reg
, "l3") == 0)
256 sregs
->r
[(cwp
+ 19) & 0x7f] = rval
;
257 else if (strcmp(reg
, "l4") == 0)
258 sregs
->r
[(cwp
+ 20) & 0x7f] = rval
;
259 else if (strcmp(reg
, "l5") == 0)
260 sregs
->r
[(cwp
+ 21) & 0x7f] = rval
;
261 else if (strcmp(reg
, "l6") == 0)
262 sregs
->r
[(cwp
+ 22) & 0x7f] = rval
;
263 else if (strcmp(reg
, "l7") == 0)
264 sregs
->r
[(cwp
+ 23) & 0x7f] = rval
;
265 else if (strcmp(reg
, "i0") == 0)
266 sregs
->r
[(cwp
+ 24) & 0x7f] = rval
;
267 else if (strcmp(reg
, "i1") == 0)
268 sregs
->r
[(cwp
+ 25) & 0x7f] = rval
;
269 else if (strcmp(reg
, "i2") == 0)
270 sregs
->r
[(cwp
+ 26) & 0x7f] = rval
;
271 else if (strcmp(reg
, "i3") == 0)
272 sregs
->r
[(cwp
+ 27) & 0x7f] = rval
;
273 else if (strcmp(reg
, "i4") == 0)
274 sregs
->r
[(cwp
+ 28) & 0x7f] = rval
;
275 else if (strcmp(reg
, "i5") == 0)
276 sregs
->r
[(cwp
+ 29) & 0x7f] = rval
;
277 else if (strcmp(reg
, "i6") == 0)
278 sregs
->r
[(cwp
+ 30) & 0x7f] = rval
;
279 else if (strcmp(reg
, "i7") == 0)
280 sregs
->r
[(cwp
+ 31) & 0x7f] = rval
;
285 printf("%s = %d (0x%08x)\n", reg
, rval
, rval
);
288 printf("no such regiser: %s\n", reg
);
291 printf("cannot set g0\n");
301 struct pstate
*sregs
;
304 if (strncmp(reg
, "w",1) == 0)
305 disp_regs(sregs
, VAL(®
[1]));
315 switch (err
= (random() % 12)) {
316 case 0: errtt
= 0x61; break;
317 case 1: errtt
= 0x62; break;
318 case 2: errtt
= 0x63; break;
319 case 3: errtt
= 0x64; break;
320 case 4: errtt
= 0x65; break;
323 case 7: errftt
= err
;
325 case 8: errmec
= 1; break;
326 case 9: errmec
= 2; break;
327 case 10: errmec
= 5; break;
328 case 11: errmec
= 6; break;
331 if (errper
) event(errinj
, 0, (random()%errper
));
337 if (errper
) event(errinj
, 0, (random()%errper
));
352 if ((cmd1
= strtok(NULL
, " \t\n\r")) != NULL
) {
354 if ((cmd2
= strtok(NULL
, " \t\n\r")) != NULL
) {
355 if (strcmp(cmd2
,"us")==0) unit
= 1;
356 if (strcmp(cmd2
,"ms")==0) unit
= 1000;
357 if (strcmp(cmd2
,"s")==0) unit
= 1000000;
359 flim
= (double) lim
* (double) unit
* (double) freq
+
360 (double) ebase
.simtime
;
361 if ((flim
> ebase
.simtime
) && (flim
< 4294967296.0)) {
364 printf("error in expression\n");
372 exec_cmd(struct pstate
*sregs
, const char *cmd
)
376 uint32 len
, i
, clen
, j
;
377 static uint32 daddr
= 0;
378 char *cmdsave
, *cmdsave2
= NULL
;
381 cmdsave
= strdup(cmd
);
382 cmdsave2
= strdup (cmd
);
383 if ((cmd1
= strtok (cmdsave2
, " \t")) != NULL
) {
385 if (strncmp(cmd1
, "bp", clen
) == 0) {
386 for (i
= 0; i
< sregs
->bptnum
; i
++) {
387 printf(" %d : 0x%08x\n", i
+ 1, sregs
->bpts
[i
]);
389 } else if (strncmp(cmd1
, "+bp", clen
) == 0) {
390 if ((cmd1
= strtok(NULL
, " \t\n\r")) != NULL
) {
391 sregs
->bpts
[sregs
->bptnum
] = VAL(cmd1
) & ~0x3;
392 printf("added breakpoint %d at 0x%08x\n",
393 sregs
->bptnum
+ 1, sregs
->bpts
[sregs
->bptnum
]);
396 } else if (strncmp(cmd1
, "-bp", clen
) == 0) {
397 if ((cmd1
= strtok(NULL
, " \t\n\r")) != NULL
) {
399 if ((i
>= 0) && (i
< sregs
->bptnum
)) {
400 printf("deleted breakpoint %d at 0x%08x\n", i
+ 1,
402 for (; i
< sregs
->bptnum
- 1; i
++) {
403 sregs
->bpts
[i
] = sregs
->bpts
[i
+ 1];
408 } else if (strncmp(cmd1
, "batch", clen
) == 0) {
409 if ((cmd1
= strtok(NULL
, " \t\n\r")) == NULL
) {
410 printf("no file specified\n");
414 } else if (strncmp(cmd1
, "cont", clen
) == 0) {
415 if ((cmd1
= strtok(NULL
, " \t\n\r")) == NULL
) {
416 stat
= run_sim(sregs
, UINT64_MAX
, 0);
418 stat
= run_sim(sregs
, VAL(cmd1
), 0);
422 } else if (strncmp(cmd1
, "debug", clen
) == 0) {
423 if ((cmd1
= strtok(NULL
, " \t\n\r")) != NULL
) {
424 sis_verbose
= VAL(cmd1
);
426 printf("Debug level = %d\n",sis_verbose
);
427 } else if (strncmp(cmd1
, "dis", clen
) == 0) {
428 if ((cmd1
= strtok(NULL
, " \t\n\r")) != NULL
) {
431 if ((cmd2
= strtok(NULL
, " \t\n\r")) != NULL
) {
436 dis_mem(daddr
, len
, &dinfo
);
439 } else if (strncmp(cmd1
, "echo", clen
) == 0) {
440 if ((cmd1
= strtok(NULL
, " \t\n\r")) != NULL
) {
441 printf("%s\n", (&cmdsave
[clen
+1]));
444 } else if (strncmp(cmd1
, "error", clen
) == 0) {
445 if ((cmd1
= strtok(NULL
, " \t\n\r")) != NULL
) {
448 event(errinj
, 0, (len
= (random()%errper
)));
449 printf("Error injection started with period %d\n",len
);
451 } else printf("Injected errors: %d\n",errcnt
);
453 } else if (strncmp(cmd1
, "float", clen
) == 0) {
454 stat
= disp_fpu(sregs
);
455 } else if (strncmp(cmd1
, "go", clen
) == 0) {
456 if ((cmd1
= strtok(NULL
, " \t\n\r")) == NULL
) {
457 len
= last_load_addr
;
461 sregs
->pc
= len
& ~3;
462 sregs
->npc
= sregs
->pc
+ 4;
463 if ((sregs
->pc
!= 0) && (ebase
.simtime
== 0))
465 printf("resuming at 0x%08x\n",sregs
->pc
);
466 if ((cmd2
= strtok(NULL
, " \t\n\r")) != NULL
) {
467 stat
= run_sim(sregs
, VAL(cmd2
), 0);
469 stat
= run_sim(sregs
, UINT64_MAX
, 0);
473 } else if (strncmp(cmd1
, "help", clen
) == 0) {
475 } else if (strncmp(cmd1
, "history", clen
) == 0) {
476 if ((cmd1
= strtok(NULL
, " \t\n\r")) != NULL
) {
477 sregs
->histlen
= VAL(cmd1
);
478 if (sregs
->histbuf
!= NULL
)
479 free(sregs
->histbuf
);
480 sregs
->histbuf
= (struct histype
*) calloc(sregs
->histlen
, sizeof(struct histype
));
481 printf("trace history length = %d\n\r", sregs
->histlen
);
486 for (i
= 0; i
< sregs
->histlen
; i
++) {
487 if (j
>= sregs
->histlen
)
489 printf(" %8d ", sregs
->histbuf
[j
].time
);
490 dis_mem(sregs
->histbuf
[j
].addr
, 1, &dinfo
);
495 } else if (strncmp(cmd1
, "load", clen
) == 0) {
496 if ((cmd1
= strtok(NULL
, " \t\n\r")) != NULL
) {
497 last_load_addr
= bfd_load(cmd1
);
498 while ((cmd1
= strtok(NULL
, " \t\n\r")) != NULL
)
499 last_load_addr
= bfd_load(cmd1
);
501 printf("load: no file specified\n");
503 } else if (strncmp(cmd1
, "mem", clen
) == 0) {
504 if ((cmd1
= strtok(NULL
, " \t\n\r")) != NULL
)
506 if ((cmd2
= strtok(NULL
, " \t\n\r")) != NULL
)
510 disp_mem(daddr
, len
);
512 } else if (strncmp(cmd1
, "perf", clen
) == 0) {
513 cmd1
= strtok(NULL
, " \t\n\r");
514 if ((cmd1
!= NULL
) &&
515 (strncmp(cmd1
, "reset", strlen(cmd1
)) == 0)) {
519 } else if (strncmp(cmd1
, "quit", clen
) == 0) {
521 } else if (strncmp(cmd1
, "reg", clen
) == 0) {
522 cmd1
= strtok(NULL
, " \t\n\r");
523 cmd2
= strtok(NULL
, " \t\n\r");
525 set_rega(sregs
, cmd1
, VAL(cmd2
));
526 else if (cmd1
!= NULL
)
527 disp_reg(sregs
, cmd1
);
529 disp_regs(sregs
,sregs
->psr
);
532 } else if (strncmp(cmd1
, "reset", clen
) == 0) {
536 } else if (strncmp(cmd1
, "run", clen
) == 0) {
540 if ((cmd1
= strtok(NULL
, " \t\n\r")) == NULL
) {
541 stat
= run_sim(sregs
, UINT64_MAX
, 0);
543 stat
= run_sim(sregs
, VAL(cmd1
), 0);
547 } else if (strncmp(cmd1
, "shell", clen
) == 0) {
548 if ((cmd1
= strtok(NULL
, " \t\n\r")) != NULL
) {
549 if (system(&cmdsave
[clen
])) {
550 /* Silence unused return value warning. */
553 } else if (strncmp(cmd1
, "step", clen
) == 0) {
554 stat
= run_sim(sregs
, 1, 1);
557 } else if (strncmp(cmd1
, "tcont", clen
) == 0) {
558 sregs
->tlimit
= limcalc(sregs
->freq
);
559 stat
= run_sim(sregs
, UINT64_MAX
, 0);
562 } else if (strncmp(cmd1
, "tgo", clen
) == 0) {
563 if ((cmd1
= strtok(NULL
, " \t\n\r")) == NULL
) {
564 len
= last_load_addr
;
567 sregs
->tlimit
= limcalc(sregs
->freq
);
569 sregs
->pc
= len
& ~3;
570 sregs
->npc
= sregs
->pc
+ 4;
571 printf("resuming at 0x%08x\n",sregs
->pc
);
572 stat
= run_sim(sregs
, UINT64_MAX
, 0);
575 } else if (strncmp(cmd1
, "tlimit", clen
) == 0) {
576 sregs
->tlimit
= limcalc(sregs
->freq
);
577 if (sregs
->tlimit
!= (uint32
) -1)
578 printf("simulation limit = %u (%.3f ms)\n",(uint32
) sregs
->tlimit
,
579 sregs
->tlimit
/ sregs
->freq
/ 1000);
580 } else if (strncmp(cmd1
, "tra", clen
) == 0) {
581 if ((cmd1
= strtok(NULL
, " \t\n\r")) == NULL
) {
582 stat
= run_sim(sregs
, UINT64_MAX
, 1);
584 stat
= run_sim(sregs
, VAL(cmd1
), 1);
589 } else if (strncmp(cmd1
, "trun", clen
) == 0) {
593 sregs
->tlimit
= limcalc(sregs
->freq
);
594 stat
= run_sim(sregs
, UINT64_MAX
, 0);
598 printf("syntax error\n");
600 if (cmdsave2
!= NULL
)
610 struct pstate
*sregs
;
612 sregs
->tottime
= 0.0;
622 sregs
->simstart
= ebase
.simtime
;
628 struct pstate
*sregs
;
633 if (sregs
->tottime
== 0.0)
634 sregs
->tottime
+= 1E-6;
635 stime
= ebase
.simtime
- sregs
->simstart
; /* Total simulated time */
638 iinst
= sregs
->ninst
- sregs
->finst
- sregs
->nload
- sregs
->nstore
-
642 printf("\n Cycles : %9" PRIu64
"\n\r", ebase
.simtime
- sregs
->simstart
);
643 printf(" Instructions : %9" PRIu64
"\n", sregs
->ninst
);
646 printf(" integer : %9.2f %%\n", 100.0 * (float) iinst
/ (float) sregs
->ninst
);
647 printf(" load : %9.2f %%\n",
648 100.0 * (float) sregs
->nload
/ (float) sregs
->ninst
);
649 printf(" store : %9.2f %%\n",
650 100.0 * (float) sregs
->nstore
/ (float) sregs
->ninst
);
651 printf(" branch : %9.2f %%\n",
652 100.0 * (float) sregs
->nbranch
/ (float) sregs
->ninst
);
653 printf(" float : %9.2f %%\n",
654 100.0 * (float) sregs
->finst
/ (float) sregs
->ninst
);
655 printf(" Integer CPI : %9.2f\n",
656 ((float) (stime
- sregs
->pwdtime
- sregs
->fholdt
- sregs
->finst
))
658 (float) (sregs
->ninst
- sregs
->finst
));
659 printf(" Float CPI : %9.2f\n",
660 ((float) sregs
->fholdt
/ (float) sregs
->finst
) + 1.0);
662 printf(" Overall CPI : %9.2f\n",
663 (float) (stime
- sregs
->pwdtime
) / (float) sregs
->ninst
);
664 printf("\n ERC32 performance (%4.1f MHz): %5.2f MOPS (%5.2f MIPS, %5.2f MFLOPS)\n",
665 sregs
->freq
, sregs
->freq
* (float) sregs
->ninst
/ (float) (stime
- sregs
->pwdtime
),
666 sregs
->freq
* (float) (sregs
->ninst
- sregs
->finst
) /
667 (float) (stime
- sregs
->pwdtime
),
668 sregs
->freq
* (float) sregs
->finst
/ (float) (stime
- sregs
->pwdtime
));
669 printf(" Simulated ERC32 time : %.2f s\n",
670 (float) (ebase
.simtime
- sregs
->simstart
) / 1000000.0 / sregs
->freq
);
671 printf(" Processor utilisation : %.2f %%\n",
672 100.0 * (1.0 - ((float) sregs
->pwdtime
/ (float) stime
)));
673 printf(" Real-time performance : %.2f %%\n",
674 100.0 / (sregs
->tottime
/ ((double) (stime
) / (sregs
->freq
* 1.0E6
))));
675 printf(" Simulator performance : %.2f MIPS\n",
676 (double)(sregs
->ninst
) / sregs
->tottime
/ 1E6
);
677 printf(" Used time (sys + user) : %.2f s\n\n", sregs
->tottime
);
684 struct pstate
*sregs
;
689 sregs
->histbuf
= NULL
;
698 printf("\n\n Signal handler error (%d)\n\n", sig
);
705 typedef void (*PFI
) ();
706 static PFI int_tab
[2];
708 int_tab
[0] = signal(SIGTERM
, int_handler
);
709 int_tab
[1] = signal(SIGINT
, int_handler
);
713 extern struct disassemble_info dinfo
;
716 struct evcell evbuf
[EVENT_MAX
];
717 struct irqcell irqarr
[16];
721 struct pstate
*sregs
;
727 printf("\n fsr: %08X\n\n", sregs
->fsr
);
729 #ifdef HOST_LITTLE_ENDIAN
730 for (i
= 0; i
< 32; i
++)
731 sregs
->fdp
[i
^ 1] = sregs
->fs
[i
];
734 for (i
= 0; i
< 32; i
++) {
736 printf(" f%02d %08x %14e ", i
, sregs
->fsi
[i
], sregs
->fs
[i
]);
738 printf("%14e\n", sregs
->fd
[i
>> 1]);
748 struct pstate
*sregs
;
754 cwp
= ((cwp
& 0x7) << 4);
755 printf("\n\t INS LOCALS OUTS GLOBALS\n");
756 for (i
= 0; i
< 8; i
++) {
757 printf(" %d: %08X %08X %08X %08X\n", i
,
758 sregs
->r
[(cwp
+ i
+ 24) & 0x7f],
759 sregs
->r
[(cwp
+ i
+ 16) & 0x7f], sregs
->r
[(cwp
+ i
+ 8) & 0x7f],
764 static void print_insn_sparc_sis(uint32 addr
, struct disassemble_info
*info
)
768 sis_memory_read(addr
, i
, 4);
769 dinfo
.buffer_vma
= addr
;
770 dinfo
.buffer_length
= 4;
772 print_insn_sparc(addr
, info
);
777 struct pstate
*sregs
;
782 printf("\n psr: %08X wim: %08X tbr: %08X y: %08X\n",
783 sregs
->psr
, sregs
->wim
, sregs
->tbr
, sregs
->y
);
784 sis_memory_read (sregs
->pc
, (char *) &i
, 4);
785 printf ("\n pc: %08X = %08X ", sregs
->pc
, i
);
786 print_insn_sparc_sis(sregs
->pc
, &dinfo
);
787 sis_memory_read (sregs
->npc
, (char *) &i
, 4);
788 printf ("\n npc: %08X = %08X ", sregs
->npc
, i
);
789 print_insn_sparc_sis(sregs
->npc
, &dinfo
);
791 printf("\n IU in error mode");
809 for (i
= addr
& ~3; i
< ((addr
+ len
) & ~3); i
+= 16) {
810 printf("\n %8X ", i
);
811 for (j
= 0; j
< 4; j
++) {
812 sis_memory_read ((i
+ (j
* 4)), data
.u8
, 4);
813 printf ("%08x ", data
.u32
);
818 for (j
= 0; j
< 16; j
++) {
819 if (isprint (p
[j
^ EBT
]))
820 putchar (p
[j
^ EBT
]);
829 dis_mem(addr
, len
, info
)
832 struct disassemble_info
*info
;
840 for (i
= addr
& -3; i
< ((addr
& -3) + (len
<< 2)); i
+= 4) {
841 sis_memory_read (i
, data
.u8
, 4);
842 printf (" %08x %08x ", i
, data
.u32
);
843 print_insn_sparc_sis(i
, info
);
844 if (i
>= 0xfffffffc) break;
849 /* Add event to event queue */
852 event(cfunc
, arg
, delta
)
857 struct evcell
*ev1
, *evins
;
859 if (ebase
.freeq
== NULL
) {
860 printf("Error, too many events in event queue\n");
864 delta
+= ebase
.simtime
;
865 while ((ev1
->nxt
!= NULL
) && (ev1
->nxt
->time
<= delta
)) {
868 if (ev1
->nxt
== NULL
) {
869 ev1
->nxt
= ebase
.freeq
;
870 ebase
.freeq
= ebase
.freeq
->nxt
;
871 ev1
->nxt
->nxt
= NULL
;
874 ebase
.freeq
= ebase
.freeq
->nxt
;
875 evins
->nxt
= ev1
->nxt
;
878 ev1
->nxt
->time
= delta
;
879 ev1
->nxt
->cfunc
= cfunc
;
883 #if 0 /* apparently not used */
897 for (i
= 0; i
< EVENT_MAX
; i
++) {
898 evbuf
[i
].nxt
= &evbuf
[i
+ 1];
900 evbuf
[EVENT_MAX
- 1].nxt
= NULL
;
904 set_int(level
, callback
, arg
)
909 irqarr
[level
& 0x0f].callback
= callback
;
910 irqarr
[level
& 0x0f].arg
= arg
;
913 /* Advance simulator time */
917 struct pstate
*sregs
;
920 struct evcell
*evrem
;
926 sregs
->fholdt
+= sregs
->fhold
;
927 sregs
->holdt
+= sregs
->hold
;
928 sregs
->icntt
+= sregs
->icnt
;
931 endtime
= ebase
.simtime
+ sregs
->icnt
+ sregs
->hold
+ sregs
->fhold
;
933 while ((ebase
.eq
.nxt
->time
<= (endtime
)) && (ebase
.eq
.nxt
!= NULL
)) {
934 ebase
.simtime
= ebase
.eq
.nxt
->time
;
935 cfunc
= ebase
.eq
.nxt
->cfunc
;
936 arg
= ebase
.eq
.nxt
->arg
;
937 evrem
= ebase
.eq
.nxt
;
938 ebase
.eq
.nxt
= ebase
.eq
.nxt
->nxt
;
939 evrem
->nxt
= ebase
.freeq
;
943 ebase
.simtime
= endtime
;
950 return ebase
.simtime
;
954 /* Advance time until an external interrupt is seen */
959 struct evcell
*evrem
;
964 if (ebase
.eq
.nxt
== NULL
)
965 printf("Warning: event queue empty - power-down mode not entered\n");
966 endtime
= ebase
.simtime
;
967 while (!ext_irl
&& (ebase
.eq
.nxt
!= NULL
)) {
968 ebase
.simtime
= ebase
.eq
.nxt
->time
;
969 cfunc
= ebase
.eq
.nxt
->cfunc
;
970 arg
= ebase
.eq
.nxt
->arg
;
971 evrem
= ebase
.eq
.nxt
;
972 ebase
.eq
.nxt
= ebase
.eq
.nxt
->nxt
;
973 evrem
->nxt
= ebase
.freeq
;
977 printf("\bwarning: power-down mode interrupted\n");
981 sregs
.pwdtime
+= ebase
.simtime
- endtime
;
982 return ebase
.simtime
- endtime
;
987 struct pstate
*sregs
;
991 if ((sregs
->bphit
) || (sregs
->annul
))
993 for (i
= 0; i
< (int32
) sregs
->bptnum
; i
++) {
994 if (sregs
->pc
== sregs
->bpts
[i
])
1003 init_event(); /* Clear event queue */
1015 sregs
.trap
= 256; /* Force fake reset trap */
1021 sregs
.trap
= 257; /* Force fake halt trap */
1024 #include "ansidecl.h"
1028 #include "libiberty.h"
1031 #define min(A, B) (((A) < (B)) ? (A) : (B))
1032 #define LOAD_ADDRESS 0
1035 bfd_load (const char *fname
)
1039 const bfd_arch_info_type
*arch
;
1042 pbfd
= bfd_openr(fname
, 0);
1045 printf("open of %s failed\n", fname
);
1048 if (!bfd_check_format(pbfd
, bfd_object
)) {
1049 printf("file %s doesn't seem to be an object file\n", fname
);
1053 arch
= bfd_get_arch_info (pbfd
);
1055 printf("loading %s:", fname
);
1056 for (section
= pbfd
->sections
; section
; section
= section
->next
) {
1057 if (bfd_get_section_flags(pbfd
, section
) & SEC_ALLOC
) {
1058 bfd_vma section_address
;
1059 unsigned long section_size
;
1060 const char *section_name
;
1062 section_name
= bfd_get_section_name(pbfd
, section
);
1064 section_address
= bfd_get_section_vma(pbfd
, section
);
1066 * Adjust sections from a.out files, since they don't carry their
1069 if (bfd_get_flavour(pbfd
) == bfd_target_aout_flavour
) {
1070 if (strcmp (section_name
, ".text") == 0)
1071 section_address
= bfd_get_start_address (pbfd
);
1072 else if (strcmp (section_name
, ".data") == 0) {
1073 /* Read the first 8 bytes of the data section.
1074 There should be the string 'DaTa' followed by
1075 a word containing the actual section address. */
1078 char signature
[4]; /* 'DaTa' */
1079 unsigned char sdata
[4]; /* &sdata */
1081 bfd_get_section_contents (pbfd
, section
, &marker
, 0,
1083 if (strncmp (marker
.signature
, "DaTa", 4) == 0)
1085 section_address
= bfd_getb32 (marker
.sdata
);
1090 section_size
= bfd_section_size(pbfd
, section
);
1093 printf("\nsection %s at 0x%08lx (0x%lx bytes)",
1094 section_name
, section_address
, section_size
);
1096 /* Text, data or lit */
1097 if (bfd_get_section_flags(pbfd
, section
) & SEC_LOAD
) {
1102 while (section_size
> 0) {
1106 count
= min(section_size
, 1024);
1108 bfd_get_section_contents(pbfd
, section
, buffer
, fptr
, count
);
1110 for (i
= 0; i
< count
; i
++)
1111 sis_memory_write ((section_address
+ i
) ^ EBT
, &buffer
[i
], 1);
1113 section_address
+= count
;
1115 section_size
-= count
;
1119 printf("(not loaded)");
1125 return bfd_get_start_address (pbfd
);
1128 double get_time (void)
1134 gettimeofday (&tm
, NULL
);
1135 usec
= ((double) tm
.tv_sec
) * 1E6
+ ((double) tm
.tv_usec
);
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