Mercurial > hg > Members > kono > os9 > sbc09
annotate src/trace.c @ 191:d0f5894e9b3a default tip
some how load: confilicts in gmake
| author | kono |
|---|---|
| date | Thu, 07 Dec 2023 09:37:15 +0900 |
| parents | b93996f54090 |
| children |
| 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 | |
| 190 | 28 extern int xmstat; /* 0= no XMODEM transfer, 1=send, 2=receiver */ |
| 29 extern unsigned char xmbuf[132]; | |
| 30 extern int xidx; | |
| 31 extern int acknak; | |
| 32 extern int rcvdnak; | |
| 33 extern int blocknum; | |
|
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34 extern int timer; |
| 0 | 35 |
| 20 | 36 extern FILE *logfile; |
| 37 extern FILE *infile; | |
| 38 extern FILE *xfile; | |
| 39 extern FILE *disk[]; | |
| 0 | 40 |
| 41 extern void hexadump( unsigned char *b, int l, int loc, int w); | |
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42 extern int disasm(int,int); |
| 20 | 43 extern void restore_term(void) ; |
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44 extern void start_timer(void) ; |
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45 extern void stop_timer(void) ; |
| 20 | 46 |
| 9 | 47 #ifdef USE_MMU |
| 48 extern char *prog ; // for disass | |
| 11 | 49 extern Byte * mem0(Byte *iphymem, Word adr, Byte *immu) ; |
| 21 | 50 extern int paddr(Word adr, Byte *immu) ; |
| 51 #else | |
| 52 #define paddr(a,m) (a) | |
| 9 | 53 #endif |
| 54 | |
| 0 | 55 void do_exit(void) { |
| 56 restore_term(); | |
| 57 exit(0); | |
| 58 } | |
| 59 | |
| 4 | 60 |
| 0 | 61 typedef struct bp { |
| 21 | 62 int address; // physical address |
| 63 int laddr; | |
| 0 | 64 int count; |
| 35 | 65 int watch; // watch point |
| 0 | 66 struct bp *next; |
| 67 } BP, *BPTR; | |
| 68 | |
| 69 BPTR breakpoint = 0; | |
| 70 int bpskip = 0; | |
| 71 int trskip = 0; | |
| 72 int stkskip = 0; | |
| 73 | |
| 64 | 74 int getterm(char *buf, char** next) { |
| 75 int value = 0; | |
| 76 while (*buf==' ') buf++; | |
| 77 if (*buf=='x') { value = xreg; buf++; *next = buf ; | |
| 78 } else if (*buf=='y') { value = yreg; buf++; *next = buf; | |
| 79 } else if (*buf=='u') { value = ureg; buf++; *next = buf; | |
| 80 } else if (*buf=='s') { value = sreg; buf++; *next = buf; | |
| 81 } else if (*buf=='p') { value = pcreg; buf++; *next = buf; | |
| 82 } else if (*buf=='d') { value = (*areg<<8)+*breg; buf++; *next = buf; | |
| 83 } else if (*buf=='a') { value = *areg; buf++; *next = buf; | |
| 84 } else if (*buf=='b') { value = *breg; buf++; *next = buf; | |
| 85 } else value = strtol(buf,next,0); | |
| 86 return value; | |
| 87 } | |
| 88 | |
| 0 | 89 int getarg(char *buf, char** next) { |
| 64 | 90 int value = 0; |
| 91 char *b = buf; | |
| 92 if (next==0) next = &b; | |
| 71 | 93 *next = buf; |
| 64 | 94 value=getterm(*next,next); |
| 95 for(;**next;) { | |
| 35 | 96 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); |
| 35 | 104 } else if ( **next == '&' ) { |
| 64 | 105 value &= getterm(*next+1,next); |
| 35 | 106 } else if ( **next == '|' ) { |
| 64 | 107 value |= getterm(*next+1,next); |
| 108 } else if ( **next == '(' ) { | |
| 109 value = getarg(*next+1,next); | |
| 110 if(**next==')') *next=*next+1; | |
| 35 | 111 } else break; |
| 112 } | |
| 113 return value; | |
| 0 | 114 } |
| 115 | |
| 116 void printhelp(void) | |
| 117 { | |
| 118 printf( | |
| 64 | 119 "use 0x for hex inputs\n" |
| 0 | 120 " s [count] one step trace\n" |
| 121 " n step over\n" | |
| 122 " f finish this call (until stack pop)\n" | |
| 28 | 123 " b [adr] set break point (on current physical addreaa)\n" |
| 33 | 124 " B break point list\n" |
| 0 | 125 " d [n] delte break point list\n" |
| 126 " c [count] continue;\n" | |
| 64 | 127 " p data print\n" |
| 33 | 128 " x [adr] [count] dump\n" |
| 64 | 129 " xi [adr] [count] disassemble\n" |
| 9 | 130 #ifdef USE_MMU |
| 64 | 131 " x [p page] [offset] [count] dump physical memory\n" |
| 132 " xi [p page] [offset] [count] disassemble\n" | |
| 9 | 133 #endif |
| 1 | 134 " 0 file disk drive 0 image\n" |
| 135 " 1 file disk drive 1 image\n" | |
| 0 | 136 " L file start log to file\n" |
| 137 " S file set input file\n" | |
| 138 " X exit\n" | |
| 139 " q exit\n" | |
| 140 " U file upload from srecord file \n" | |
| 141 " D file download to srecord file \n" | |
|
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142 " T stop/start timer \n" |
| 0 | 143 " R do reset\n" |
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144 " put 0x41 instruction for break \n" |
| 0 | 145 " h,? print this\n" |
| 146 ); | |
| 147 } | |
| 148 | |
| 21 | 149 |
| 84 | 150 void setbreak(int adr,int count, int page) ; |
| 22 | 151 int nexti(void); |
| 21 | 152 |
| 0 | 153 void do_escape(void) { |
| 154 char s[80]; | |
| 28 | 155 int adr,page; |
| 38 | 156 int ppc = paddr(pcreg,mmu); |
| 0 | 157 if (bpskip) { // skip unbreak instruction |
| 158 bpskip--; | |
| 21 | 159 BPTR *prev = &breakpoint; |
| 22 | 160 for(BPTR b = breakpoint; b ; prev=&b->next, b=b->next ) { |
| 35 | 161 #ifdef USE_MMU |
| 162 int watch = phymem[b->address]; | |
| 163 #else | |
| 164 int watch = mem[b->address]; | |
| 165 #endif | |
| 166 if (ppc==b->address || b->watch != watch ) { | |
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167 if (b->watch != watch) |
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168 printf("%04x : %02x -> %02x ",b->address, b->watch ,watch); |
| 35 | 169 b->watch = watch; |
| 21 | 170 if (b->count==-1) { // temporaly break point |
| 171 BPTR next = b->next; | |
| 172 free(b); | |
| 22 | 173 *prev = next; |
| 21 | 174 goto restart0; |
| 175 } | |
| 0 | 176 if (b->count) b->count--; |
| 177 if (b->count==0) { | |
| 178 goto restart0; | |
| 179 } | |
| 180 } | |
| 181 } | |
| 182 return; | |
| 183 } | |
| 184 if (stkskip) { // skip until return | |
| 38 | 185 #ifdef USE_MMU |
| 186 if (phymem[ppc]==0x3b||(phymem[ppc]==0x10&&phymem[ppc+1]==0x3f)) | |
| 187 goto restart0; | |
| 188 #else | |
| 189 if (mem[ppc]==0x3b||(mem[ppc]==0x10&&mem[ppc+1]==0x3f)) | |
| 190 goto restart0; | |
| 191 #endif | |
| 0 | 192 if (sreg < stkskip ) return; |
| 193 } | |
| 194 restart0: | |
| 195 stkskip = 0; | |
| 196 restore_term(); | |
| 9 | 197 #ifdef USE_MMU |
| 38 | 198 Byte *phyadr = phymem + ppc; |
| 9 | 199 prog = (char*)phyadr - pcreg; |
| 200 #endif | |
| 0 | 201 do_trace(stdout); |
| 202 if (trskip>1) { // show trace and step | |
| 203 trskip--; | |
| 35 | 204 int watch; // watch point |
| 0 | 205 set_term(escchar); |
| 206 return; | |
| 207 } | |
| 208 restart: | |
| 209 printf("v09>"); | |
| 28 | 210 fgets(s, sizeof(s)-1, stdin); |
| 211 s[strlen(s)-1] = 0; // chop | |
| 0 | 212 switch (s[0]) { |
| 64 | 213 case 'p': { |
| 214 int d = getarg(s+1,0); | |
| 215 printf("0x%x %d '%c'\n",d,d,(d<' '||d>0x7f)?' ':d); | |
| 216 goto restart; | |
| 217 } | |
| 21 | 218 case 'n': // step over |
| 219 if (nexti()) { | |
| 220 bpskip = -1; | |
| 221 break; | |
| 222 } | |
| 0 | 223 case 's': // one step trace |
| 224 trskip = 1; | |
| 225 if (s[1]) { | |
| 226 trskip = getarg(s+1,0); | |
| 227 } | |
| 228 bpskip = 0; | |
| 229 attention = escape = 1; | |
| 230 break; | |
| 231 case 'f': // finish this call (until stack pop) | |
| 232 stkskip = sreg + 2; | |
| 233 attention = escape = 1; | |
| 234 break; | |
| 84 | 235 case 'b': { // set break point |
| 236 char *next = s; | |
| 237 int page = -1; | |
| 238 if (next[1]=='p') { | |
| 239 next++; | |
| 240 if (next[1]) | |
| 241 page = getarg(next+1,&next); | |
| 242 } | |
| 243 if (next[1]) { | |
| 21 | 244 int count = 0; |
| 84 | 245 int adr = getarg(next+1,&next); |
| 21 | 246 if (next[0]) { |
| 247 count = getarg(next,&next); | |
| 248 } | |
| 84 | 249 setbreak(adr,count,page); |
| 21 | 250 } else { |
| 84 | 251 setbreak(pcreg,0,page); |
| 0 | 252 } |
| 253 bpskip = -1; | |
| 254 goto restart; | |
| 84 | 255 } |
| 28 | 256 case 'B': // break point list |
| 0 | 257 for(BPTR bp = breakpoint; bp ; bp = bp->next) { |
| 21 | 258 #ifdef USE_MMU |
| 35 | 259 printf("0x%x p=0x%x c=%d w=0x%x\n", bp->laddr, bp->address, bp->count, bp->watch); |
| 21 | 260 #else |
| 35 | 261 printf("0x%x c=%d w=0x%x\n", bp->address, bp->count,bp->watch); |
| 21 | 262 #endif |
| 0 | 263 } |
| 264 goto restart; | |
| 265 case 'd': // delte break point list | |
| 266 if (s[1]) { | |
| 267 int trskip = getarg(s+1,0); | |
| 268 BPTR *prev = &breakpoint; | |
| 22 | 269 for(BPTR bp = breakpoint; bp ; prev=&bp->next, bp = bp->next) { |
| 0 | 270 if (trskip-- == 0) { |
| 22 | 271 BPTR next = bp->next; |
| 21 | 272 free(bp); |
| 22 | 273 *prev = next; |
| 0 | 274 break; |
| 275 } | |
| 276 prev = &bp->next; | |
| 277 } | |
| 278 } | |
| 279 goto restart; | |
| 280 case 'c': // continue; | |
| 281 bpskip = -1; | |
| 282 attention = escape = 1; | |
| 283 if (s[1]) { | |
| 284 bpskip = getarg(s+1,0); | |
| 285 } | |
| 286 break; | |
| 59 | 287 /* |
| 288 * we should have disassembler for a mmu page | |
| 289 */ | |
| 28 | 290 case 'x': // dump |
| 64 | 291 { char d = 0; |
| 292 char p = 0; | |
| 293 char *next = s+1; | |
| 294 int len = 32; | |
| 295 int adr = pcreg; | |
| 296 if (*next=='i') { next++; d='i'; | |
| 297 } | |
| 298 if (*next=='p') { | |
| 299 p = 'p'; | |
| 300 next++; | |
| 28 | 301 if (next[0]) { |
| 302 page = getarg(next,&next); | |
| 303 } | |
| 304 } | |
| 305 if (next[0]) { | |
| 64 | 306 adr = getarg(next,&next); |
| 9 | 307 #ifdef USE_MMU |
| 84 | 308 if (d!='i') // disassembler may fail on page boundary |
| 309 adr -= adr &0xf; | |
| 9 | 310 #endif |
| 64 | 311 if (next[0]) { |
| 312 len = getarg(next,&next); | |
| 313 } | |
| 314 } | |
| 315 for(; len > 0 ; len-=16,adr+=16) { | |
| 316 Byte *phyadr = 0; | |
| 9 | 317 #ifdef USE_MMU |
| 64 | 318 if (p=='p') { |
| 319 phyadr = phymem + (page * 0x2000 + adr); | |
| 320 prog = (char*)phyadr - adr ; | |
| 321 } else { | |
| 322 phyadr = mem0(phymem,adr,mmu); | |
| 323 prog = (char*)phyadr - adr ; | |
| 324 } | |
| 325 if (phyadr > phymem+memsize) goto restart; | |
| 9 | 326 #else |
| 64 | 327 phyadr = mem+adr; |
| 328 if (phyadr > mem+0xffff) goto restart; | |
| 9 | 329 #endif |
| 64 | 330 if (d=='i') { |
| 79 | 331 adr = disasm(adr,adr+(len>16?16:len))-16; |
| 64 | 332 } else { |
| 333 hexadump(phyadr,len>16?16:len,adr,16); | |
| 334 } | |
| 335 } | |
| 0 | 336 goto restart; |
| 28 | 337 } |
| 0 | 338 case 'L': |
| 339 if (logfile) | |
| 340 fclose(logfile); | |
| 341 logfile = 0; | |
| 342 if (s[1]) { | |
| 1 | 343 int i=1; while(s[i]==' ') i++; |
| 344 logfile = fopen(s + i, "w"); | |
| 0 | 345 } |
| 64 | 346 goto restart; |
| 0 | 347 break; |
| 348 case 'S': | |
| 349 if (infile) | |
| 350 fclose(infile); | |
| 351 infile = 0; | |
| 352 if (s[1]) { | |
| 1 | 353 int i=1; while(s[i]==' ') i++; |
| 354 infile = fopen(s + i, "r"); | |
| 0 | 355 } |
| 64 | 356 goto restart; |
| 0 | 357 break; |
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358 case 'T': |
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359 if (timer) { |
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360 stop_timer(); timer = 0; |
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361 printf("timer off\n"); |
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362 } else { |
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363 start_timer(); timer = 3; |
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364 printf("timer on\n"); |
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365 } |
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366 goto restart; |
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367 break; |
| 0 | 368 case 'h': |
| 369 case '?': | |
| 370 printhelp(); | |
| 371 goto restart; | |
| 372 case 'X': | |
| 373 case 'q': | |
| 374 if (!xmstat) | |
| 375 do_exit(); | |
| 376 else { | |
| 377 xmstat = 0; | |
| 378 fclose(xfile); | |
| 379 xfile = 0; | |
| 380 } | |
| 64 | 381 goto restart; |
| 0 | 382 break; |
| 1 | 383 case '0': |
| 384 case '1': | |
| 385 { FILE **drv = &disk[ s[0]-'0'] ; | |
| 386 if (*drv) | |
| 387 fclose(*drv); | |
| 388 *drv = 0; | |
| 389 if (s[1]) { | |
| 390 int i=1; while(s[i]==' ') i++; | |
| 391 *drv = fopen(s + i, "r+b"); | |
| 392 if ( *drv == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 393 } | |
| 394 } | |
| 64 | 395 goto restart; |
| 1 | 396 break; |
| 0 | 397 case 'U': |
| 398 if (xfile) | |
| 399 fclose(xfile); | |
| 400 xfile = 0; | |
| 401 if (s[1]) { | |
| 1 | 402 int i=1; while(s[i]==' ') i++; |
| 403 xfile = fopen(s + i, "rb"); | |
| 404 if ( xfile == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 0 | 405 } |
| 406 if (xfile) | |
| 407 xmstat = 1; | |
| 408 else | |
| 409 xmstat = 0; | |
| 410 xidx = 0; | |
| 411 acknak = 21; | |
| 412 rcvdnak = EOF; | |
| 413 blocknum = 1; | |
| 64 | 414 goto restart; |
| 0 | 415 break; |
| 416 case 'D': | |
| 417 if (xfile) | |
| 418 fclose(xfile); | |
| 419 xfile = 0; | |
| 420 if (s[1]) { | |
| 1 | 421 int i=1; while(s[i]==' ') i++; |
| 422 xfile = fopen(s + i, "wb"); | |
| 423 if ( xfile == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 0 | 424 } |
| 425 if (xfile) | |
| 426 xmstat = 2; | |
| 427 else | |
| 428 xmstat = 0; | |
| 429 xidx = 0; | |
| 430 acknak = 21; | |
| 431 blocknum = 1; | |
| 64 | 432 goto restart; |
| 0 | 433 break; |
| 434 case 'R': | |
| 435 pcreg = (mem[0xfffe] << 8) + mem[0xffff]; | |
| 13 | 436 bpskip = 0; |
| 24 | 437 #ifdef USE_MMU |
| 438 mmu = &mem[0xffa0]; | |
| 28 | 439 mem[0xffa7]=0x3f; |
| 24 | 440 #endif |
| 13 | 441 attention = escape = 1; |
| 59 | 442 // we have to reload romfile |
| 443 // readimage(); | |
| 64 | 444 goto restart; |
| 0 | 445 break; |
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446 default: // one step trace |
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447 trskip = 1; |
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448 bpskip = 0; |
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449 attention = escape = 1; |
| 0 | 450 } |
| 451 if (tracing||breakpoint||trskip||bpskip||stkskip) { attention = escape = 1; } | |
| 452 else attention = 0; | |
| 453 set_term(escchar); | |
| 454 } | |
| 455 | |
| 59 | 456 /* |
| 457 * keep break point / watch point in a list | |
| 458 */ | |
| 84 | 459 void setbreak(int adr, int count, int page) { |
| 21 | 460 BPTR bp = calloc(1,sizeof(BP)); |
| 461 bp->count = count; | |
| 22 | 462 bp->laddr = adr; |
| 463 bp->address = paddr(adr,mmu); | |
| 35 | 464 #ifdef USE_MMU |
| 84 | 465 if (page!=-1) { |
| 466 bp->address = page*0x2000 + adr; | |
| 467 } | |
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468 if (bp->address >= memsize) { free(bp); return; } |
| 84 | 469 bp->watch = phymem[bp->address]; |
| 35 | 470 #else |
| 471 bp->watch = mem[adr]; | |
| 472 #endif | |
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473 bp->next = breakpoint; |
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474 breakpoint = bp; |
| 21 | 475 } |
| 476 | |
| 59 | 477 /* |
| 64 | 478 * length of call instruction |
| 59 | 479 * |
| 64 | 480 * if next instruction is call or swi, put temporary break after the call instruction |
| 59 | 481 * (ignoring page boundary, sorry) |
| 482 */ | |
| 21 | 483 int nexti(void) { |
| 22 | 484 #ifdef USE_MMU |
| 485 int op1 = *mem0(phymem,pcreg,mmu); | |
| 486 int op2 = *mem0(phymem,pcreg+1,mmu); | |
| 487 #else | |
| 488 int op1 = mem[pcreg]; | |
| 489 int op2 = mem[pcreg+1]; | |
| 490 #endif | |
| 21 | 491 int ofs = 0; |
| 492 switch(op1) { | |
| 493 case 0x17: // LBSR | |
| 494 case 0xbd: // JSR extended | |
| 22 | 495 ofs=3; break; |
| 21 | 496 case 0x10: // page2 |
| 497 { | |
| 498 if (op2==0x3f) { // os9 system call | |
| 22 | 499 ofs=3; break; |
| 21 | 500 } |
| 501 } | |
|
29
3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
28
diff
changeset
|
502 break; |
| 21 | 503 case 0x11: // page3 |
| 504 { | |
| 505 if (op2==0x3f) { // SWI3 | |
| 22 | 506 ofs=2; break; |
| 21 | 507 } |
| 508 } | |
|
29
3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
28
diff
changeset
|
509 break; |
| 21 | 510 case 0x3f: // SWI |
| 22 | 511 ofs=1; break; |
| 21 | 512 case 0x3c: // CWAI |
| 513 case 0x8d: // BSR | |
| 514 case 0x9d: // JSR direct | |
| 22 | 515 ofs=2; break; |
| 21 | 516 case 0xad: // JSR index |
| 517 { | |
| 518 if (op2<0x80) ofs = 2; // 5bit ofs | |
| 519 else switch (op2&0xf) { | |
| 520 case 8: case 0xc: | |
| 521 ofs = 3; break; | |
| 522 case 9: case 0xd: case 0xf: | |
| 523 ofs = 4; break; | |
| 524 default: | |
| 525 ofs = 2; break; | |
| 526 } | |
| 527 } | |
| 528 break; | |
| 529 } | |
| 84 | 530 if (ofs) setbreak(pcreg+ofs,-1,-1); |
| 22 | 531 return ofs; |
| 21 | 532 } |
| 533 | |
| 59 | 534 /* end */ |