Mercurial > hg > Members > kono > os9 > sbc09
annotate src/trace.c @ 175:c83545730d6c
openm
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Sun, 14 Apr 2019 17:17:34 +0900 |
| parents | 6f7276831219 |
| children | f524c0c95559 |
| 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); | |
|
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111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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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; | |
| 71 | 90 *next = buf; |
| 64 | 91 value=getterm(*next,next); |
| 92 for(;**next;) { | |
| 35 | 93 if ( **next == '+' ) { |
| 64 | 94 value += getterm(*next+1,next); |
| 35 | 95 } else if ( **next == '*' ) { |
| 64 | 96 value *= getterm(*next+1,next); |
| 35 | 97 } else if ( **next == '/' ) { |
| 64 | 98 value /= getterm(*next+1,next); |
| 35 | 99 } else if ( **next == '-' ) { |
| 64 | 100 value -= getterm(*next+1,next); |
| 35 | 101 } else if ( **next == '&' ) { |
| 64 | 102 value &= getterm(*next+1,next); |
| 35 | 103 } else if ( **next == '|' ) { |
| 64 | 104 value |= getterm(*next+1,next); |
| 105 } else if ( **next == '(' ) { | |
| 106 value = getarg(*next+1,next); | |
| 107 if(**next==')') *next=*next+1; | |
| 35 | 108 } else break; |
| 109 } | |
| 110 return value; | |
| 0 | 111 } |
| 112 | |
| 113 void printhelp(void) | |
| 114 { | |
| 115 printf( | |
| 64 | 116 "use 0x for hex inputs\n" |
| 0 | 117 " s [count] one step trace\n" |
| 118 " n step over\n" | |
| 119 " f finish this call (until stack pop)\n" | |
| 28 | 120 " b [adr] set break point (on current physical addreaa)\n" |
| 33 | 121 " B break point list\n" |
| 0 | 122 " d [n] delte break point list\n" |
| 123 " c [count] continue;\n" | |
| 64 | 124 " p data print\n" |
| 33 | 125 " x [adr] [count] dump\n" |
| 64 | 126 " xi [adr] [count] disassemble\n" |
| 9 | 127 #ifdef USE_MMU |
| 64 | 128 " x [p page] [offset] [count] dump physical memory\n" |
| 129 " xi [p page] [offset] [count] disassemble\n" | |
| 9 | 130 #endif |
| 1 | 131 " 0 file disk drive 0 image\n" |
| 132 " 1 file disk drive 1 image\n" | |
| 0 | 133 " L file start log to file\n" |
| 134 " S file set input file\n" | |
| 135 " X exit\n" | |
| 136 " q exit\n" | |
| 137 " U file upload from srecord file \n" | |
| 138 " D file download to srecord file \n" | |
| 139 " R do reset\n" | |
| 140 " h,? print this\n" | |
| 141 ); | |
| 142 } | |
| 143 | |
| 21 | 144 |
| 84 | 145 void setbreak(int adr,int count, int page) ; |
| 22 | 146 int nexti(void); |
| 21 | 147 |
| 0 | 148 void do_escape(void) { |
| 149 char s[80]; | |
| 28 | 150 int adr,page; |
| 38 | 151 int ppc = paddr(pcreg,mmu); |
| 0 | 152 if (bpskip) { // skip unbreak instruction |
| 153 bpskip--; | |
| 21 | 154 BPTR *prev = &breakpoint; |
| 22 | 155 for(BPTR b = breakpoint; b ; prev=&b->next, b=b->next ) { |
| 35 | 156 #ifdef USE_MMU |
| 157 int watch = phymem[b->address]; | |
| 158 #else | |
| 159 int watch = mem[b->address]; | |
| 160 #endif | |
| 161 if (ppc==b->address || b->watch != watch ) { | |
|
138
6f7276831219
TL/1 use x and y register
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
84
diff
changeset
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162 if (b->watch != watch) |
|
6f7276831219
TL/1 use x and y register
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
84
diff
changeset
|
163 printf("%04x : %02x -> %02x ",b->address, b->watch ,watch); |
| 35 | 164 b->watch = watch; |
| 21 | 165 if (b->count==-1) { // temporaly break point |
| 166 BPTR next = b->next; | |
| 167 free(b); | |
| 22 | 168 *prev = next; |
| 21 | 169 goto restart0; |
| 170 } | |
| 0 | 171 if (b->count) b->count--; |
| 172 if (b->count==0) { | |
| 173 goto restart0; | |
| 174 } | |
| 175 } | |
| 176 } | |
| 177 return; | |
| 178 } | |
| 179 if (stkskip) { // skip until return | |
| 38 | 180 #ifdef USE_MMU |
| 181 if (phymem[ppc]==0x3b||(phymem[ppc]==0x10&&phymem[ppc+1]==0x3f)) | |
| 182 goto restart0; | |
| 183 #else | |
| 184 if (mem[ppc]==0x3b||(mem[ppc]==0x10&&mem[ppc+1]==0x3f)) | |
| 185 goto restart0; | |
| 186 #endif | |
| 0 | 187 if (sreg < stkskip ) return; |
| 188 } | |
| 189 restart0: | |
| 190 stkskip = 0; | |
| 191 restore_term(); | |
| 9 | 192 #ifdef USE_MMU |
| 38 | 193 Byte *phyadr = phymem + ppc; |
| 9 | 194 prog = (char*)phyadr - pcreg; |
| 195 #endif | |
| 0 | 196 do_trace(stdout); |
| 197 if (trskip>1) { // show trace and step | |
| 198 trskip--; | |
| 35 | 199 int watch; // watch point |
| 0 | 200 set_term(escchar); |
| 201 return; | |
| 202 } | |
| 203 restart: | |
| 204 printf("v09>"); | |
| 28 | 205 fgets(s, sizeof(s)-1, stdin); |
| 206 s[strlen(s)-1] = 0; // chop | |
| 0 | 207 switch (s[0]) { |
| 64 | 208 case 'p': { |
| 209 int d = getarg(s+1,0); | |
| 210 printf("0x%x %d '%c'\n",d,d,(d<' '||d>0x7f)?' ':d); | |
| 211 goto restart; | |
| 212 } | |
| 21 | 213 case 'n': // step over |
| 214 if (nexti()) { | |
| 215 bpskip = -1; | |
| 216 break; | |
| 217 } | |
| 0 | 218 case 's': // one step trace |
| 219 trskip = 1; | |
| 220 if (s[1]) { | |
| 221 trskip = getarg(s+1,0); | |
| 222 } | |
| 223 bpskip = 0; | |
| 224 attention = escape = 1; | |
| 225 break; | |
| 226 case 'f': // finish this call (until stack pop) | |
| 227 stkskip = sreg + 2; | |
| 228 attention = escape = 1; | |
| 229 break; | |
| 84 | 230 case 'b': { // set break point |
| 231 char *next = s; | |
| 232 int page = -1; | |
| 233 if (next[1]=='p') { | |
| 234 next++; | |
| 235 if (next[1]) | |
| 236 page = getarg(next+1,&next); | |
| 237 } | |
| 238 if (next[1]) { | |
| 21 | 239 int count = 0; |
| 84 | 240 int adr = getarg(next+1,&next); |
| 21 | 241 if (next[0]) { |
| 242 count = getarg(next,&next); | |
| 243 } | |
| 84 | 244 setbreak(adr,count,page); |
| 21 | 245 } else { |
| 84 | 246 setbreak(pcreg,0,page); |
| 0 | 247 } |
| 248 bpskip = -1; | |
| 249 goto restart; | |
| 84 | 250 } |
| 28 | 251 case 'B': // break point list |
| 0 | 252 for(BPTR bp = breakpoint; bp ; bp = bp->next) { |
| 21 | 253 #ifdef USE_MMU |
| 35 | 254 printf("0x%x p=0x%x c=%d w=0x%x\n", bp->laddr, bp->address, bp->count, bp->watch); |
| 21 | 255 #else |
| 35 | 256 printf("0x%x c=%d w=0x%x\n", bp->address, bp->count,bp->watch); |
| 21 | 257 #endif |
| 0 | 258 } |
| 259 goto restart; | |
| 260 case 'd': // delte break point list | |
| 261 if (s[1]) { | |
| 262 int trskip = getarg(s+1,0); | |
| 263 BPTR *prev = &breakpoint; | |
| 22 | 264 for(BPTR bp = breakpoint; bp ; prev=&bp->next, bp = bp->next) { |
| 0 | 265 if (trskip-- == 0) { |
| 22 | 266 BPTR next = bp->next; |
| 21 | 267 free(bp); |
| 22 | 268 *prev = next; |
| 0 | 269 break; |
| 270 } | |
| 271 prev = &bp->next; | |
| 272 } | |
| 273 } | |
| 274 goto restart; | |
| 275 case 'c': // continue; | |
| 276 bpskip = -1; | |
| 277 attention = escape = 1; | |
| 278 if (s[1]) { | |
| 279 bpskip = getarg(s+1,0); | |
| 280 } | |
| 281 break; | |
| 59 | 282 /* |
| 283 * we should have disassembler for a mmu page | |
| 284 */ | |
| 28 | 285 case 'x': // dump |
| 64 | 286 { char d = 0; |
| 287 char p = 0; | |
| 288 char *next = s+1; | |
| 289 int len = 32; | |
| 290 int adr = pcreg; | |
| 291 if (*next=='i') { next++; d='i'; | |
| 292 } | |
| 293 if (*next=='p') { | |
| 294 p = 'p'; | |
| 295 next++; | |
| 28 | 296 if (next[0]) { |
| 297 page = getarg(next,&next); | |
| 298 } | |
| 299 } | |
| 300 if (next[0]) { | |
| 64 | 301 adr = getarg(next,&next); |
| 9 | 302 #ifdef USE_MMU |
| 84 | 303 if (d!='i') // disassembler may fail on page boundary |
| 304 adr -= adr &0xf; | |
| 9 | 305 #endif |
| 64 | 306 if (next[0]) { |
| 307 len = getarg(next,&next); | |
| 308 } | |
| 309 } | |
| 310 for(; len > 0 ; len-=16,adr+=16) { | |
| 311 Byte *phyadr = 0; | |
| 9 | 312 #ifdef USE_MMU |
| 64 | 313 if (p=='p') { |
| 314 phyadr = phymem + (page * 0x2000 + adr); | |
| 315 prog = (char*)phyadr - adr ; | |
| 316 } else { | |
| 317 phyadr = mem0(phymem,adr,mmu); | |
| 318 prog = (char*)phyadr - adr ; | |
| 319 } | |
| 320 if (phyadr > phymem+memsize) goto restart; | |
| 9 | 321 #else |
| 64 | 322 phyadr = mem+adr; |
| 323 if (phyadr > mem+0xffff) goto restart; | |
| 9 | 324 #endif |
| 64 | 325 if (d=='i') { |
| 79 | 326 adr = disasm(adr,adr+(len>16?16:len))-16; |
| 64 | 327 } else { |
| 328 hexadump(phyadr,len>16?16:len,adr,16); | |
| 329 } | |
| 330 } | |
| 0 | 331 goto restart; |
| 28 | 332 } |
| 0 | 333 case 'L': |
| 334 if (logfile) | |
| 335 fclose(logfile); | |
| 336 logfile = 0; | |
| 337 if (s[1]) { | |
| 1 | 338 int i=1; while(s[i]==' ') i++; |
| 339 logfile = fopen(s + i, "w"); | |
| 0 | 340 } |
| 64 | 341 goto restart; |
| 0 | 342 break; |
| 343 case 'S': | |
| 344 if (infile) | |
| 345 fclose(infile); | |
| 346 infile = 0; | |
| 347 if (s[1]) { | |
| 1 | 348 int i=1; while(s[i]==' ') i++; |
| 349 infile = fopen(s + i, "r"); | |
| 0 | 350 } |
| 64 | 351 goto restart; |
| 0 | 352 break; |
| 353 case 'h': | |
| 354 case '?': | |
| 355 printhelp(); | |
| 356 goto restart; | |
| 357 case 'X': | |
| 358 case 'q': | |
| 359 if (!xmstat) | |
| 360 do_exit(); | |
| 361 else { | |
| 362 xmstat = 0; | |
| 363 fclose(xfile); | |
| 364 xfile = 0; | |
| 365 } | |
| 64 | 366 goto restart; |
| 0 | 367 break; |
| 1 | 368 case '0': |
| 369 case '1': | |
| 370 { FILE **drv = &disk[ s[0]-'0'] ; | |
| 371 if (*drv) | |
| 372 fclose(*drv); | |
| 373 *drv = 0; | |
| 374 if (s[1]) { | |
| 375 int i=1; while(s[i]==' ') i++; | |
| 376 *drv = fopen(s + i, "r+b"); | |
| 377 if ( *drv == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 378 } | |
| 379 } | |
| 64 | 380 goto restart; |
| 1 | 381 break; |
| 0 | 382 case 'U': |
| 383 if (xfile) | |
| 384 fclose(xfile); | |
| 385 xfile = 0; | |
| 386 if (s[1]) { | |
| 1 | 387 int i=1; while(s[i]==' ') i++; |
| 388 xfile = fopen(s + i, "rb"); | |
| 389 if ( xfile == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 0 | 390 } |
| 391 if (xfile) | |
| 392 xmstat = 1; | |
| 393 else | |
| 394 xmstat = 0; | |
| 395 xidx = 0; | |
| 396 acknak = 21; | |
| 397 rcvdnak = EOF; | |
| 398 blocknum = 1; | |
| 64 | 399 goto restart; |
| 0 | 400 break; |
| 401 case 'D': | |
| 402 if (xfile) | |
| 403 fclose(xfile); | |
| 404 xfile = 0; | |
| 405 if (s[1]) { | |
| 1 | 406 int i=1; while(s[i]==' ') i++; |
| 407 xfile = fopen(s + i, "wb"); | |
| 408 if ( xfile == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 0 | 409 } |
| 410 if (xfile) | |
| 411 xmstat = 2; | |
| 412 else | |
| 413 xmstat = 0; | |
| 414 xidx = 0; | |
| 415 acknak = 21; | |
| 416 blocknum = 1; | |
| 64 | 417 goto restart; |
| 0 | 418 break; |
| 419 case 'R': | |
| 420 pcreg = (mem[0xfffe] << 8) + mem[0xffff]; | |
| 13 | 421 bpskip = 0; |
| 24 | 422 #ifdef USE_MMU |
| 423 mmu = &mem[0xffa0]; | |
| 28 | 424 mem[0xffa7]=0x3f; |
| 24 | 425 #endif |
| 13 | 426 attention = escape = 1; |
| 59 | 427 // we have to reload romfile |
| 428 // readimage(); | |
| 64 | 429 goto restart; |
| 0 | 430 break; |
|
52
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
431 default: // one step trace |
|
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
432 trskip = 1; |
|
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
433 bpskip = 0; |
|
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
434 attention = escape = 1; |
| 0 | 435 } |
| 436 if (tracing||breakpoint||trskip||bpskip||stkskip) { attention = escape = 1; } | |
| 437 else attention = 0; | |
| 438 set_term(escchar); | |
| 439 } | |
| 440 | |
| 59 | 441 /* |
| 442 * keep break point / watch point in a list | |
| 443 */ | |
| 84 | 444 void setbreak(int adr, int count, int page) { |
| 21 | 445 BPTR bp = calloc(1,sizeof(BP)); |
| 446 bp->count = count; | |
| 22 | 447 bp->laddr = adr; |
| 448 bp->address = paddr(adr,mmu); | |
| 35 | 449 #ifdef USE_MMU |
| 84 | 450 if (page!=-1) { |
| 451 bp->address = page*0x2000 + adr; | |
| 452 } | |
|
52
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
453 if (bp->address >= memsize) { free(bp); return; } |
| 84 | 454 bp->watch = phymem[bp->address]; |
| 35 | 455 #else |
| 456 bp->watch = mem[adr]; | |
| 457 #endif | |
|
52
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
458 bp->next = breakpoint; |
|
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
459 breakpoint = bp; |
| 21 | 460 } |
| 461 | |
| 59 | 462 /* |
| 64 | 463 * length of call instruction |
| 59 | 464 * |
| 64 | 465 * if next instruction is call or swi, put temporary break after the call instruction |
| 59 | 466 * (ignoring page boundary, sorry) |
| 467 */ | |
| 21 | 468 int nexti(void) { |
| 22 | 469 #ifdef USE_MMU |
| 470 int op1 = *mem0(phymem,pcreg,mmu); | |
| 471 int op2 = *mem0(phymem,pcreg+1,mmu); | |
| 472 #else | |
| 473 int op1 = mem[pcreg]; | |
| 474 int op2 = mem[pcreg+1]; | |
| 475 #endif | |
| 21 | 476 int ofs = 0; |
| 477 switch(op1) { | |
| 478 case 0x17: // LBSR | |
| 479 case 0xbd: // JSR extended | |
| 22 | 480 ofs=3; break; |
| 21 | 481 case 0x10: // page2 |
| 482 { | |
| 483 if (op2==0x3f) { // os9 system call | |
| 22 | 484 ofs=3; break; |
| 21 | 485 } |
| 486 } | |
|
29
3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
28
diff
changeset
|
487 break; |
| 21 | 488 case 0x11: // page3 |
| 489 { | |
| 490 if (op2==0x3f) { // SWI3 | |
| 22 | 491 ofs=2; break; |
| 21 | 492 } |
| 493 } | |
|
29
3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
28
diff
changeset
|
494 break; |
| 21 | 495 case 0x3f: // SWI |
| 22 | 496 ofs=1; break; |
| 21 | 497 case 0x3c: // CWAI |
| 498 case 0x8d: // BSR | |
| 499 case 0x9d: // JSR direct | |
| 22 | 500 ofs=2; break; |
| 21 | 501 case 0xad: // JSR index |
| 502 { | |
| 503 if (op2<0x80) ofs = 2; // 5bit ofs | |
| 504 else switch (op2&0xf) { | |
| 505 case 8: case 0xc: | |
| 506 ofs = 3; break; | |
| 507 case 9: case 0xd: case 0xf: | |
| 508 ofs = 4; break; | |
| 509 default: | |
| 510 ofs = 2; break; | |
| 511 } | |
| 512 } | |
| 513 break; | |
| 514 } | |
| 84 | 515 if (ofs) setbreak(pcreg+ofs,-1,-1); |
| 22 | 516 return ofs; |
| 21 | 517 } |
| 518 | |
| 59 | 519 /* end */ |