Mercurial > hg > Members > kono > os9 > sbc09
annotate src/trace.c @ 66:1ff0a1fdd5d7
fix xp command
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 31 Jul 2018 22:48:08 +0900 |
| parents | 41f14f365b34 |
| children | eb9be32c701c |
| rev | line source |
|---|---|
| 9 | 1 /* 6808 Simulator V092 |
| 20 | 2 * |
| 59 | 3 * 2018 Shinji KONO |
| 20 | 4 * tracer |
| 59 | 5 * |
| 0 | 6 */ |
| 7 | |
| 8 #include<stdio.h> | |
| 9 #include<stdlib.h> | |
| 10 #include<ctype.h> | |
| 11 #include<signal.h> | |
| 12 #include<sys/time.h> | |
| 13 | |
| 14 #include <unistd.h> | |
| 15 #include <fcntl.h> | |
| 16 #include <string.h> | |
| 1 | 17 #include <time.h> |
| 0 | 18 |
| 19 #ifdef USE_TERMIOS | |
| 20 #include <termios.h> | |
| 21 #endif | |
| 22 | |
| 23 #define engine extern | |
| 24 #include "v09.h" | |
| 25 | |
| 26 struct termios termsetting; | |
| 27 | |
| 28 int xmstat; /* 0= no XMODEM transfer, 1=send, 2=receiver */ | |
| 29 unsigned char xmbuf[132]; | |
| 30 int xidx; | |
| 31 int acknak; | |
| 32 int rcvdnak; | |
| 33 int blocknum; | |
| 34 | |
| 20 | 35 extern FILE *logfile; |
| 36 extern FILE *infile; | |
| 37 extern FILE *xfile; | |
| 38 extern FILE *disk[]; | |
| 0 | 39 |
| 40 extern void hexadump( unsigned char *b, int l, int loc, int w); | |
|
12
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
41 extern int disasm(int,int); |
| 20 | 42 extern void restore_term(void) ; |
| 43 | |
| 9 | 44 #ifdef USE_MMU |
| 45 extern char *prog ; // for disass | |
| 11 | 46 extern Byte * mem0(Byte *iphymem, Word adr, Byte *immu) ; |
| 21 | 47 extern int paddr(Word adr, Byte *immu) ; |
| 48 #else | |
| 49 #define paddr(a,m) (a) | |
| 9 | 50 #endif |
| 51 | |
| 0 | 52 void do_exit(void) { |
| 53 restore_term(); | |
| 54 exit(0); | |
| 55 } | |
| 56 | |
| 4 | 57 |
| 0 | 58 typedef struct bp { |
| 21 | 59 int address; // physical address |
| 60 int laddr; | |
| 0 | 61 int count; |
| 35 | 62 int watch; // watch point |
| 0 | 63 struct bp *next; |
| 64 } BP, *BPTR; | |
| 65 | |
| 66 BPTR breakpoint = 0; | |
| 67 int bpskip = 0; | |
| 68 int trskip = 0; | |
| 69 int stkskip = 0; | |
| 70 | |
| 64 | 71 int getterm(char *buf, char** next) { |
| 72 int value = 0; | |
| 73 while (*buf==' ') buf++; | |
| 74 if (*buf=='x') { value = xreg; buf++; *next = buf ; | |
| 75 } else if (*buf=='y') { value = yreg; buf++; *next = buf; | |
| 76 } else if (*buf=='u') { value = ureg; buf++; *next = buf; | |
| 77 } else if (*buf=='s') { value = sreg; buf++; *next = buf; | |
| 78 } else if (*buf=='p') { value = pcreg; buf++; *next = buf; | |
| 79 } else if (*buf=='d') { value = (*areg<<8)+*breg; buf++; *next = buf; | |
| 80 } else if (*buf=='a') { value = *areg; buf++; *next = buf; | |
| 81 } else if (*buf=='b') { value = *breg; buf++; *next = buf; | |
| 82 } else value = strtol(buf,next,0); | |
| 83 return value; | |
| 84 } | |
| 85 | |
| 0 | 86 int getarg(char *buf, char** next) { |
| 64 | 87 int value = 0; |
| 88 char *b = buf; | |
| 89 if (next==0) next = &b; | |
| 90 value=getterm(*next,next); | |
| 91 for(;**next;) { | |
| 35 | 92 if ( **next == '+' ) { |
| 64 | 93 value += getterm(*next+1,next); |
| 35 | 94 } else if ( **next == '*' ) { |
| 64 | 95 value *= getterm(*next+1,next); |
| 35 | 96 } else if ( **next == '/' ) { |
| 64 | 97 value /= getterm(*next+1,next); |
| 35 | 98 } else if ( **next == '-' ) { |
| 64 | 99 value -= getterm(*next+1,next); |
| 35 | 100 } else if ( **next == '&' ) { |
| 64 | 101 value &= getterm(*next+1,next); |
| 35 | 102 } else if ( **next == '|' ) { |
| 64 | 103 value |= getterm(*next+1,next); |
| 104 } else if ( **next == '(' ) { | |
| 105 value = getarg(*next+1,next); | |
| 106 if(**next==')') *next=*next+1; | |
| 35 | 107 } else break; |
| 108 } | |
| 109 return value; | |
| 0 | 110 } |
| 111 | |
| 112 void printhelp(void) | |
| 113 { | |
| 114 printf( | |
| 64 | 115 "use 0x for hex inputs\n" |
| 0 | 116 " s [count] one step trace\n" |
| 117 " n step over\n" | |
| 118 " f finish this call (until stack pop)\n" | |
| 28 | 119 " b [adr] set break point (on current physical addreaa)\n" |
| 33 | 120 " B break point list\n" |
| 0 | 121 " d [n] delte break point list\n" |
| 122 " c [count] continue;\n" | |
| 64 | 123 " p data print\n" |
| 33 | 124 " x [adr] [count] dump\n" |
| 64 | 125 " xi [adr] [count] disassemble\n" |
| 9 | 126 #ifdef USE_MMU |
| 64 | 127 " x [p page] [offset] [count] dump physical memory\n" |
| 128 " xi [p page] [offset] [count] disassemble\n" | |
| 9 | 129 #endif |
| 1 | 130 " 0 file disk drive 0 image\n" |
| 131 " 1 file disk drive 1 image\n" | |
| 0 | 132 " L file start log to file\n" |
| 133 " S file set input file\n" | |
| 134 " X exit\n" | |
| 135 " q exit\n" | |
| 136 " U file upload from srecord file \n" | |
| 137 " D file download to srecord file \n" | |
| 138 " R do reset\n" | |
| 139 " h,? print this\n" | |
| 140 ); | |
| 141 } | |
| 142 | |
| 21 | 143 |
| 144 void setbreak(int adr,int count) ; | |
| 22 | 145 int nexti(void); |
| 21 | 146 |
| 0 | 147 void do_escape(void) { |
| 148 char s[80]; | |
| 28 | 149 int adr,page; |
| 38 | 150 int ppc = paddr(pcreg,mmu); |
| 0 | 151 if (bpskip) { // skip unbreak instruction |
| 152 bpskip--; | |
| 21 | 153 BPTR *prev = &breakpoint; |
| 22 | 154 for(BPTR b = breakpoint; b ; prev=&b->next, b=b->next ) { |
| 35 | 155 #ifdef USE_MMU |
| 156 int watch = phymem[b->address]; | |
| 157 #else | |
| 158 int watch = mem[b->address]; | |
| 159 #endif | |
| 160 if (ppc==b->address || b->watch != watch ) { | |
| 161 b->watch = watch; | |
| 21 | 162 if (b->count==-1) { // temporaly break point |
| 163 BPTR next = b->next; | |
| 164 free(b); | |
| 22 | 165 *prev = next; |
| 21 | 166 goto restart0; |
| 167 } | |
| 0 | 168 if (b->count) b->count--; |
| 169 if (b->count==0) { | |
| 170 goto restart0; | |
| 171 } | |
| 172 } | |
| 173 } | |
| 174 return; | |
| 175 } | |
| 176 if (stkskip) { // skip until return | |
| 38 | 177 #ifdef USE_MMU |
| 178 if (phymem[ppc]==0x3b||(phymem[ppc]==0x10&&phymem[ppc+1]==0x3f)) | |
| 179 goto restart0; | |
| 180 #else | |
| 181 if (mem[ppc]==0x3b||(mem[ppc]==0x10&&mem[ppc+1]==0x3f)) | |
| 182 goto restart0; | |
| 183 #endif | |
| 0 | 184 if (sreg < stkskip ) return; |
| 185 } | |
| 186 restart0: | |
| 187 stkskip = 0; | |
| 188 restore_term(); | |
| 9 | 189 #ifdef USE_MMU |
| 38 | 190 Byte *phyadr = phymem + ppc; |
| 9 | 191 prog = (char*)phyadr - pcreg; |
| 192 #endif | |
| 0 | 193 do_trace(stdout); |
| 194 if (trskip>1) { // show trace and step | |
| 195 trskip--; | |
| 35 | 196 int watch; // watch point |
| 0 | 197 set_term(escchar); |
| 198 return; | |
| 199 } | |
| 200 restart: | |
| 201 printf("v09>"); | |
| 28 | 202 fgets(s, sizeof(s)-1, stdin); |
| 203 s[strlen(s)-1] = 0; // chop | |
| 0 | 204 switch (s[0]) { |
| 64 | 205 case 'p': { |
| 206 int d = getarg(s+1,0); | |
| 207 printf("0x%x %d '%c'\n",d,d,(d<' '||d>0x7f)?' ':d); | |
| 208 goto restart; | |
| 209 } | |
| 21 | 210 case 'n': // step over |
| 211 if (nexti()) { | |
| 212 bpskip = -1; | |
| 213 break; | |
| 214 } | |
| 0 | 215 case 's': // one step trace |
| 216 trskip = 1; | |
| 217 if (s[1]) { | |
| 218 trskip = getarg(s+1,0); | |
| 219 } | |
| 220 bpskip = 0; | |
| 221 attention = escape = 1; | |
| 222 break; | |
| 223 case 'f': // finish this call (until stack pop) | |
| 224 stkskip = sreg + 2; | |
| 225 attention = escape = 1; | |
| 226 break; | |
| 227 case 'b': // set break point | |
| 21 | 228 if (s[1]) { |
| 229 char *next; | |
| 230 int count = 0; | |
| 23 | 231 int adr = getarg(s+1,&next); |
| 21 | 232 if (next[0]) { |
| 233 count = getarg(next,&next); | |
| 234 } | |
| 235 setbreak(adr,count); | |
| 236 } else { | |
| 237 setbreak(pcreg,0); | |
| 0 | 238 } |
| 239 bpskip = -1; | |
| 240 goto restart; | |
| 28 | 241 case 'B': // break point list |
| 0 | 242 for(BPTR bp = breakpoint; bp ; bp = bp->next) { |
| 21 | 243 #ifdef USE_MMU |
| 35 | 244 printf("0x%x p=0x%x c=%d w=0x%x\n", bp->laddr, bp->address, bp->count, bp->watch); |
| 21 | 245 #else |
| 35 | 246 printf("0x%x c=%d w=0x%x\n", bp->address, bp->count,bp->watch); |
| 21 | 247 #endif |
| 0 | 248 } |
| 249 goto restart; | |
| 250 case 'd': // delte break point list | |
| 251 if (s[1]) { | |
| 252 int trskip = getarg(s+1,0); | |
| 253 BPTR *prev = &breakpoint; | |
| 22 | 254 for(BPTR bp = breakpoint; bp ; prev=&bp->next, bp = bp->next) { |
| 0 | 255 if (trskip-- == 0) { |
| 22 | 256 BPTR next = bp->next; |
| 21 | 257 free(bp); |
| 22 | 258 *prev = next; |
| 0 | 259 break; |
| 260 } | |
| 261 prev = &bp->next; | |
| 262 } | |
| 263 } | |
| 264 goto restart; | |
| 265 case 'c': // continue; | |
| 266 bpskip = -1; | |
| 267 attention = escape = 1; | |
| 268 if (s[1]) { | |
| 269 bpskip = getarg(s+1,0); | |
| 270 } | |
| 271 break; | |
| 59 | 272 /* |
| 273 * we should have disassembler for a mmu page | |
| 274 */ | |
| 28 | 275 case 'x': // dump |
| 64 | 276 { char d = 0; |
| 277 char p = 0; | |
| 278 char *next = s+1; | |
| 279 int len = 32; | |
| 280 int adr = pcreg; | |
| 281 if (*next=='i') { next++; d='i'; | |
| 282 } | |
| 283 if (*next=='p') { | |
| 284 p = 'p'; | |
| 285 next++; | |
| 28 | 286 if (next[0]) { |
| 287 page = getarg(next,&next); | |
| 288 } | |
| 289 } | |
| 290 if (next[0]) { | |
| 64 | 291 adr = getarg(next,&next); |
| 9 | 292 #ifdef USE_MMU |
| 64 | 293 adr -= adr &0xf; |
| 66 | 294 // if (p=='p') adr -= adr&0x1fff; |
| 9 | 295 #endif |
| 64 | 296 if (next[0]) { |
| 297 len = getarg(next,&next); | |
| 298 } | |
| 299 } | |
| 300 for(; len > 0 ; len-=16,adr+=16) { | |
| 301 Byte *phyadr = 0; | |
| 9 | 302 #ifdef USE_MMU |
| 64 | 303 if (p=='p') { |
| 304 phyadr = phymem + (page * 0x2000 + adr); | |
| 305 prog = (char*)phyadr - adr ; | |
| 306 } else { | |
| 307 phyadr = mem0(phymem,adr,mmu); | |
| 308 prog = (char*)phyadr - adr ; | |
| 309 } | |
| 310 if (phyadr > phymem+memsize) goto restart; | |
| 9 | 311 #else |
| 64 | 312 phyadr = mem+adr; |
| 313 if (phyadr > mem+0xffff) goto restart; | |
| 9 | 314 #endif |
| 64 | 315 if (d=='i') { |
| 316 adr = disasm(adr,adr+(len>16?16:len)); | |
| 317 } else { | |
| 318 hexadump(phyadr,len>16?16:len,adr,16); | |
| 319 } | |
| 320 } | |
| 0 | 321 goto restart; |
| 28 | 322 } |
| 0 | 323 case 'L': |
| 324 if (logfile) | |
| 325 fclose(logfile); | |
| 326 logfile = 0; | |
| 327 if (s[1]) { | |
| 1 | 328 int i=1; while(s[i]==' ') i++; |
| 329 logfile = fopen(s + i, "w"); | |
| 0 | 330 } |
| 64 | 331 goto restart; |
| 0 | 332 break; |
| 333 case 'S': | |
| 334 if (infile) | |
| 335 fclose(infile); | |
| 336 infile = 0; | |
| 337 if (s[1]) { | |
| 1 | 338 int i=1; while(s[i]==' ') i++; |
| 339 infile = fopen(s + i, "r"); | |
| 0 | 340 } |
| 64 | 341 goto restart; |
| 0 | 342 break; |
| 343 case 'h': | |
| 344 case '?': | |
| 345 printhelp(); | |
| 346 goto restart; | |
| 347 case 'X': | |
| 348 case 'q': | |
| 349 if (!xmstat) | |
| 350 do_exit(); | |
| 351 else { | |
| 352 xmstat = 0; | |
| 353 fclose(xfile); | |
| 354 xfile = 0; | |
| 355 } | |
| 64 | 356 goto restart; |
| 0 | 357 break; |
| 1 | 358 case '0': |
| 359 case '1': | |
| 360 { FILE **drv = &disk[ s[0]-'0'] ; | |
| 361 if (*drv) | |
| 362 fclose(*drv); | |
| 363 *drv = 0; | |
| 364 if (s[1]) { | |
| 365 int i=1; while(s[i]==' ') i++; | |
| 366 *drv = fopen(s + i, "r+b"); | |
| 367 if ( *drv == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 368 } | |
| 369 } | |
| 64 | 370 goto restart; |
| 1 | 371 break; |
| 0 | 372 case 'U': |
| 373 if (xfile) | |
| 374 fclose(xfile); | |
| 375 xfile = 0; | |
| 376 if (s[1]) { | |
| 1 | 377 int i=1; while(s[i]==' ') i++; |
| 378 xfile = fopen(s + i, "rb"); | |
| 379 if ( xfile == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 0 | 380 } |
| 381 if (xfile) | |
| 382 xmstat = 1; | |
| 383 else | |
| 384 xmstat = 0; | |
| 385 xidx = 0; | |
| 386 acknak = 21; | |
| 387 rcvdnak = EOF; | |
| 388 blocknum = 1; | |
| 64 | 389 goto restart; |
| 0 | 390 break; |
| 391 case 'D': | |
| 392 if (xfile) | |
| 393 fclose(xfile); | |
| 394 xfile = 0; | |
| 395 if (s[1]) { | |
| 1 | 396 int i=1; while(s[i]==' ') i++; |
| 397 xfile = fopen(s + i, "wb"); | |
| 398 if ( xfile == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 0 | 399 } |
| 400 if (xfile) | |
| 401 xmstat = 2; | |
| 402 else | |
| 403 xmstat = 0; | |
| 404 xidx = 0; | |
| 405 acknak = 21; | |
| 406 blocknum = 1; | |
| 64 | 407 goto restart; |
| 0 | 408 break; |
| 409 case 'R': | |
| 410 pcreg = (mem[0xfffe] << 8) + mem[0xffff]; | |
| 13 | 411 bpskip = 0; |
| 24 | 412 #ifdef USE_MMU |
| 413 mmu = &mem[0xffa0]; | |
| 28 | 414 mem[0xffa7]=0x3f; |
| 24 | 415 #endif |
| 13 | 416 attention = escape = 1; |
| 59 | 417 // we have to reload romfile |
| 418 // readimage(); | |
| 64 | 419 goto restart; |
| 0 | 420 break; |
|
52
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
421 default: // one step trace |
|
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
422 trskip = 1; |
|
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
423 bpskip = 0; |
|
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
424 attention = escape = 1; |
| 0 | 425 } |
| 426 if (tracing||breakpoint||trskip||bpskip||stkskip) { attention = escape = 1; } | |
| 427 else attention = 0; | |
| 428 set_term(escchar); | |
| 429 } | |
| 430 | |
| 59 | 431 /* |
| 432 * keep break point / watch point in a list | |
| 433 */ | |
| 21 | 434 void setbreak(int adr, int count) { |
| 435 BPTR bp = calloc(1,sizeof(BP)); | |
| 436 bp->count = count; | |
| 22 | 437 bp->laddr = adr; |
| 438 bp->address = paddr(adr,mmu); | |
| 35 | 439 #ifdef USE_MMU |
|
52
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
440 if (bp->address >= memsize) { free(bp); return; } |
| 35 | 441 bp->watch = *mem0(phymem,adr,mmu); |
| 442 #else | |
| 443 bp->watch = mem[adr]; | |
| 444 #endif | |
|
52
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
445 bp->next = breakpoint; |
|
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
446 breakpoint = bp; |
| 21 | 447 } |
| 448 | |
| 59 | 449 /* |
| 64 | 450 * length of call instruction |
| 59 | 451 * |
| 64 | 452 * if next instruction is call or swi, put temporary break after the call instruction |
| 59 | 453 * (ignoring page boundary, sorry) |
| 454 */ | |
| 21 | 455 int nexti(void) { |
| 22 | 456 #ifdef USE_MMU |
| 457 int op1 = *mem0(phymem,pcreg,mmu); | |
| 458 int op2 = *mem0(phymem,pcreg+1,mmu); | |
| 459 #else | |
| 460 int op1 = mem[pcreg]; | |
| 461 int op2 = mem[pcreg+1]; | |
| 462 #endif | |
| 21 | 463 int ofs = 0; |
| 464 switch(op1) { | |
| 465 case 0x17: // LBSR | |
| 466 case 0xbd: // JSR extended | |
| 22 | 467 ofs=3; break; |
| 21 | 468 case 0x10: // page2 |
| 469 { | |
| 470 if (op2==0x3f) { // os9 system call | |
| 22 | 471 ofs=3; break; |
| 21 | 472 } |
| 473 } | |
|
29
3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
28
diff
changeset
|
474 break; |
| 21 | 475 case 0x11: // page3 |
| 476 { | |
| 477 if (op2==0x3f) { // SWI3 | |
| 22 | 478 ofs=2; break; |
| 21 | 479 } |
| 480 } | |
|
29
3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
28
diff
changeset
|
481 break; |
| 21 | 482 case 0x3f: // SWI |
| 22 | 483 ofs=1; break; |
| 21 | 484 case 0x3c: // CWAI |
| 485 case 0x8d: // BSR | |
| 486 case 0x9d: // JSR direct | |
| 22 | 487 ofs=2; break; |
| 21 | 488 case 0xad: // JSR index |
| 489 { | |
| 490 if (op2<0x80) ofs = 2; // 5bit ofs | |
| 491 else switch (op2&0xf) { | |
| 492 case 8: case 0xc: | |
| 493 ofs = 3; break; | |
| 494 case 9: case 0xd: case 0xf: | |
| 495 ofs = 4; break; | |
| 496 default: | |
| 497 ofs = 2; break; | |
| 498 } | |
| 499 } | |
| 500 break; | |
| 501 } | |
| 22 | 502 if (ofs) setbreak(pcreg+ofs,-1); |
| 503 return ofs; | |
| 21 | 504 } |
| 505 | |
| 59 | 506 /* end */ |