Mercurial > hg > Members > kono > os9 > sbc09
annotate trace.c @ 38:52f7ad4c2ebb
a09 out range bug
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 17 Jul 2018 06:41:02 +0900 |
| parents | 01519215ec70 |
| children | 51b437557f42 |
| rev | line source |
|---|---|
| 9 | 1 /* 6808 Simulator V092 |
| 20 | 2 * |
| 3 * tracer | |
| 0 | 4 |
| 5 */ | |
| 6 | |
| 7 #include<stdio.h> | |
| 8 #include<stdlib.h> | |
| 9 #include<ctype.h> | |
| 10 #include<signal.h> | |
| 11 #include<sys/time.h> | |
| 12 | |
| 13 #include <unistd.h> | |
| 14 #include <fcntl.h> | |
| 15 #include <string.h> | |
| 1 | 16 #include <time.h> |
| 0 | 17 |
| 18 #ifdef USE_TERMIOS | |
| 19 #include <termios.h> | |
| 20 #endif | |
| 21 | |
| 22 #define engine extern | |
| 23 #include "v09.h" | |
| 24 | |
| 25 struct termios termsetting; | |
| 26 | |
| 27 int xmstat; /* 0= no XMODEM transfer, 1=send, 2=receiver */ | |
| 28 unsigned char xmbuf[132]; | |
| 29 int xidx; | |
| 30 int acknak; | |
| 31 int rcvdnak; | |
| 32 int blocknum; | |
| 33 | |
| 20 | 34 extern FILE *logfile; |
| 35 extern FILE *infile; | |
| 36 extern FILE *xfile; | |
| 37 extern FILE *disk[]; | |
| 0 | 38 |
| 39 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:
11
diff
changeset
|
40 extern int disasm(int,int); |
| 20 | 41 extern void restore_term(void) ; |
| 42 | |
| 9 | 43 #ifdef USE_MMU |
| 44 extern char *prog ; // for disass | |
| 11 | 45 extern Byte * mem0(Byte *iphymem, Word adr, Byte *immu) ; |
| 21 | 46 extern int paddr(Word adr, Byte *immu) ; |
| 47 #else | |
| 48 #define paddr(a,m) (a) | |
| 9 | 49 #endif |
| 50 | |
| 0 | 51 void do_exit(void) { |
| 52 restore_term(); | |
| 53 exit(0); | |
| 54 } | |
| 55 | |
| 4 | 56 |
| 0 | 57 typedef struct bp { |
| 21 | 58 int address; // physical address |
| 59 int laddr; | |
| 0 | 60 int count; |
| 35 | 61 int watch; // watch point |
| 0 | 62 struct bp *next; |
| 63 } BP, *BPTR; | |
| 64 | |
| 65 BPTR breakpoint = 0; | |
| 66 int bpskip = 0; | |
| 67 int trskip = 0; | |
| 68 int stkskip = 0; | |
| 69 | |
| 70 int getarg(char *buf, char** next) { | |
| 35 | 71 int value = strtol(buf,next,0); |
| 72 for(;next;) { | |
| 73 if ( **next == '+' ) { | |
| 74 value += strtol(*next+1,next,0); | |
| 75 } else if ( **next == '*' ) { | |
| 76 value *= strtol(*next+1,next,0); | |
| 77 } else if ( **next == '/' ) { | |
| 78 value /= strtol(*next+1,next,0); | |
| 79 } else if ( **next == '-' ) { | |
| 80 value -= strtol(*next+1,next,0); | |
| 81 } else if ( **next == '&' ) { | |
| 82 value &= strtol(*next+1,next,0); | |
| 83 } else if ( **next == '|' ) { | |
| 84 value |= strtol(*next+1,next,0); | |
| 85 } else break; | |
| 86 } | |
| 87 return value; | |
| 0 | 88 } |
| 89 | |
| 90 void printhelp(void) | |
| 91 { | |
| 92 printf( | |
| 93 " s [count] one step trace\n" | |
| 94 " n step over\n" | |
| 95 " f finish this call (until stack pop)\n" | |
| 28 | 96 " b [adr] set break point (on current physical addreaa)\n" |
| 33 | 97 " B break point list\n" |
| 0 | 98 " d [n] delte break point list\n" |
| 99 " c [count] continue;\n" | |
| 33 | 100 " x [adr] [count] dump\n" |
| 9 | 101 #ifdef USE_MMU |
| 28 | 102 " xp page [adr] dump physical memory\n" |
| 9 | 103 #endif |
| 33 | 104 " xi [adr] [count] disassemble\n" |
| 1 | 105 " 0 file disk drive 0 image\n" |
| 106 " 1 file disk drive 1 image\n" | |
| 0 | 107 " L file start log to file\n" |
| 108 " S file set input file\n" | |
| 109 " X exit\n" | |
| 110 " q exit\n" | |
| 111 " U file upload from srecord file \n" | |
| 112 " D file download to srecord file \n" | |
| 113 " R do reset\n" | |
| 114 " h,? print this\n" | |
| 115 ); | |
| 116 } | |
| 117 | |
| 21 | 118 |
| 119 void setbreak(int adr,int count) ; | |
| 22 | 120 int nexti(void); |
| 21 | 121 |
| 0 | 122 void do_escape(void) { |
| 123 char s[80]; | |
| 28 | 124 int adr,page; |
| 38 | 125 int ppc = paddr(pcreg,mmu); |
| 0 | 126 if (bpskip) { // skip unbreak instruction |
| 127 bpskip--; | |
| 21 | 128 BPTR *prev = &breakpoint; |
| 22 | 129 for(BPTR b = breakpoint; b ; prev=&b->next, b=b->next ) { |
| 35 | 130 #ifdef USE_MMU |
| 131 int watch = phymem[b->address]; | |
| 132 #else | |
| 133 int watch = mem[b->address]; | |
| 134 #endif | |
| 135 if (ppc==b->address || b->watch != watch ) { | |
| 136 b->watch = watch; | |
| 21 | 137 if (b->count==-1) { // temporaly break point |
| 138 BPTR next = b->next; | |
| 139 free(b); | |
| 22 | 140 *prev = next; |
| 21 | 141 goto restart0; |
| 142 } | |
| 0 | 143 if (b->count) b->count--; |
| 144 if (b->count==0) { | |
| 145 goto restart0; | |
| 146 } | |
| 147 } | |
| 148 } | |
| 149 return; | |
| 150 } | |
| 151 if (stkskip) { // skip until return | |
| 38 | 152 #ifdef USE_MMU |
| 153 if (phymem[ppc]==0x3b||(phymem[ppc]==0x10&&phymem[ppc+1]==0x3f)) | |
| 154 goto restart0; | |
| 155 #else | |
| 156 if (mem[ppc]==0x3b||(mem[ppc]==0x10&&mem[ppc+1]==0x3f)) | |
| 157 goto restart0; | |
| 158 #endif | |
| 0 | 159 if (sreg < stkskip ) return; |
| 160 } | |
| 161 restart0: | |
| 162 stkskip = 0; | |
| 163 restore_term(); | |
| 9 | 164 #ifdef USE_MMU |
| 38 | 165 Byte *phyadr = phymem + ppc; |
| 9 | 166 prog = (char*)phyadr - pcreg; |
| 167 #endif | |
| 0 | 168 do_trace(stdout); |
| 169 if (trskip>1) { // show trace and step | |
| 170 trskip--; | |
| 35 | 171 int watch; // watch point |
| 0 | 172 set_term(escchar); |
| 173 return; | |
| 174 } | |
| 175 restart: | |
| 176 printf("v09>"); | |
| 28 | 177 fgets(s, sizeof(s)-1, stdin); |
| 178 s[strlen(s)-1] = 0; // chop | |
| 0 | 179 switch (s[0]) { |
| 21 | 180 case 'n': // step over |
| 181 if (nexti()) { | |
| 182 bpskip = -1; | |
| 183 break; | |
| 184 } | |
|
29
3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
28
diff
changeset
|
185 default: |
| 0 | 186 case 's': // one step trace |
| 187 trskip = 1; | |
| 188 if (s[1]) { | |
| 189 trskip = getarg(s+1,0); | |
| 190 } | |
| 191 bpskip = 0; | |
| 192 attention = escape = 1; | |
| 193 break; | |
| 194 case 'f': // finish this call (until stack pop) | |
| 195 stkskip = sreg + 2; | |
| 196 attention = escape = 1; | |
| 197 break; | |
| 198 case 'b': // set break point | |
| 21 | 199 if (s[1]) { |
| 200 char *next; | |
| 201 int count = 0; | |
| 23 | 202 int adr = getarg(s+1,&next); |
| 21 | 203 if (next[0]) { |
| 204 count = getarg(next,&next); | |
| 205 } | |
| 206 setbreak(adr,count); | |
| 207 } else { | |
| 208 setbreak(pcreg,0); | |
| 0 | 209 } |
| 210 bpskip = -1; | |
| 211 goto restart; | |
| 28 | 212 case 'B': // break point list |
| 0 | 213 for(BPTR bp = breakpoint; bp ; bp = bp->next) { |
| 21 | 214 #ifdef USE_MMU |
| 35 | 215 printf("0x%x p=0x%x c=%d w=0x%x\n", bp->laddr, bp->address, bp->count, bp->watch); |
| 21 | 216 #else |
| 35 | 217 printf("0x%x c=%d w=0x%x\n", bp->address, bp->count,bp->watch); |
| 21 | 218 #endif |
| 0 | 219 } |
| 220 goto restart; | |
| 221 case 'd': // delte break point list | |
| 222 if (s[1]) { | |
| 223 int trskip = getarg(s+1,0); | |
| 224 BPTR *prev = &breakpoint; | |
| 22 | 225 for(BPTR bp = breakpoint; bp ; prev=&bp->next, bp = bp->next) { |
| 0 | 226 if (trskip-- == 0) { |
| 22 | 227 BPTR next = bp->next; |
| 21 | 228 free(bp); |
| 22 | 229 *prev = next; |
| 0 | 230 break; |
| 231 } | |
| 232 prev = &bp->next; | |
| 233 } | |
| 234 } | |
| 235 goto restart; | |
| 236 case 'c': // continue; | |
| 237 bpskip = -1; | |
| 238 attention = escape = 1; | |
| 239 if (s[1]) { | |
| 240 bpskip = getarg(s+1,0); | |
| 241 } | |
| 242 break; | |
| 28 | 243 case 'x': // dump |
| 244 { char *next = s+1; | |
| 245 if (s[1]=='i') next=s+2; | |
| 246 else if (s[1]=='p') { | |
| 247 next = s+2; | |
| 248 if (next[0]) { | |
| 249 page = getarg(next,&next); | |
| 250 } | |
| 251 } | |
| 252 if (next[0]) { | |
| 253 int adr = getarg(next,&next); | |
| 0 | 254 int len = 32; |
| 255 if (next[0]) { | |
| 256 len = getarg(next,&next); | |
| 257 } | |
| 28 | 258 if (s[1]=='i') { |
|
12
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
259 Word end = adr + len; |
|
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
260 while(adr < end) { |
| 9 | 261 #ifdef USE_MMU |
|
12
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
262 Byte *phyadr = mem0(phymem,adr,mmu); |
|
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
263 prog = (char*)phyadr - adr ; |
|
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
264 if (phyadr > phymem+memsize) goto restart; |
| 9 | 265 #endif |
|
12
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
266 int len = adr+16<end? 16 : end-adr -1 ; |
|
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
267 adr = disasm(adr,adr+len); |
| 9 | 268 } |
| 0 | 269 } else { |
| 9 | 270 #ifdef USE_MMU |
| 271 for(int i=0; len > 0 ; i+=16, len-=16) { | |
| 28 | 272 if (s[1]=='p') { |
| 273 int phy = page * 0x2000 + adr + i; | |
| 274 if (phy > rommemsize) goto restart; | |
| 275 hexadump(phymem+phy,len>16?16:len,adr+i,16); | |
| 9 | 276 } else { |
| 11 | 277 Byte *phyadr = mem0(phymem,adr+i,mmu); |
| 28 | 278 if (phyadr > phymem+rommemsize) goto restart; |
| 9 | 279 hexadump(phyadr,len>16?16:len,adr+i,16); |
| 280 } | |
| 281 } | |
| 282 #else | |
| 0 | 283 for(int i=0; len > 0 ; i+=16, len-=16) { |
| 284 hexadump(mem+adr+i,len>16?16:len,adr+i,16); | |
| 285 } | |
| 9 | 286 #endif |
| 0 | 287 } |
| 288 } else | |
| 289 disasm(pcreg,pcreg+32); | |
| 290 goto restart; | |
| 28 | 291 } |
| 0 | 292 case 'L': |
| 293 if (logfile) | |
| 294 fclose(logfile); | |
| 295 logfile = 0; | |
| 296 if (s[1]) { | |
| 1 | 297 int i=1; while(s[i]==' ') i++; |
| 298 logfile = fopen(s + i, "w"); | |
| 0 | 299 } |
| 300 break; | |
| 301 case 'S': | |
| 302 if (infile) | |
| 303 fclose(infile); | |
| 304 infile = 0; | |
| 305 if (s[1]) { | |
| 1 | 306 int i=1; while(s[i]==' ') i++; |
| 307 infile = fopen(s + i, "r"); | |
| 0 | 308 } |
| 309 break; | |
| 310 case 'h': | |
| 311 case '?': | |
| 312 printhelp(); | |
| 313 goto restart; | |
| 314 case 'X': | |
| 315 case 'q': | |
| 316 if (!xmstat) | |
| 317 do_exit(); | |
| 318 else { | |
| 319 xmstat = 0; | |
| 320 fclose(xfile); | |
| 321 xfile = 0; | |
| 322 } | |
| 323 break; | |
| 1 | 324 case '0': |
| 325 case '1': | |
| 326 { FILE **drv = &disk[ s[0]-'0'] ; | |
| 327 if (*drv) | |
| 328 fclose(*drv); | |
| 329 *drv = 0; | |
| 330 if (s[1]) { | |
| 331 int i=1; while(s[i]==' ') i++; | |
| 332 *drv = fopen(s + i, "r+b"); | |
| 333 if ( *drv == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 334 } | |
| 335 } | |
| 336 break; | |
| 0 | 337 case 'U': |
| 338 if (xfile) | |
| 339 fclose(xfile); | |
| 340 xfile = 0; | |
| 341 if (s[1]) { | |
| 1 | 342 int i=1; while(s[i]==' ') i++; |
| 343 xfile = fopen(s + i, "rb"); | |
| 344 if ( xfile == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 0 | 345 } |
| 346 if (xfile) | |
| 347 xmstat = 1; | |
| 348 else | |
| 349 xmstat = 0; | |
| 350 xidx = 0; | |
| 351 acknak = 21; | |
| 352 rcvdnak = EOF; | |
| 353 blocknum = 1; | |
| 354 break; | |
| 355 case 'D': | |
| 356 if (xfile) | |
| 357 fclose(xfile); | |
| 358 xfile = 0; | |
| 359 if (s[1]) { | |
| 1 | 360 int i=1; while(s[i]==' ') i++; |
| 361 xfile = fopen(s + i, "wb"); | |
| 362 if ( xfile == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 0 | 363 } |
| 364 if (xfile) | |
| 365 xmstat = 2; | |
| 366 else | |
| 367 xmstat = 0; | |
| 368 xidx = 0; | |
| 369 acknak = 21; | |
| 370 blocknum = 1; | |
| 371 break; | |
| 372 case 'R': | |
| 373 pcreg = (mem[0xfffe] << 8) + mem[0xffff]; | |
| 13 | 374 bpskip = 0; |
| 24 | 375 #ifdef USE_MMU |
| 376 mmu = &mem[0xffa0]; | |
| 28 | 377 mem[0xffa7]=0x3f; |
| 24 | 378 #endif |
| 13 | 379 attention = escape = 1; |
| 0 | 380 break; |
| 381 } | |
| 382 if (tracing||breakpoint||trskip||bpskip||stkskip) { attention = escape = 1; } | |
| 383 else attention = 0; | |
| 384 set_term(escchar); | |
| 385 } | |
| 386 | |
| 21 | 387 void setbreak(int adr, int count) { |
| 388 BPTR bp = calloc(1,sizeof(BP)); | |
| 389 bp->next = breakpoint; | |
| 390 breakpoint = bp; | |
| 391 bp->count = count; | |
| 22 | 392 bp->laddr = adr; |
| 393 bp->address = paddr(adr,mmu); | |
| 35 | 394 #ifdef USE_MMU |
| 395 bp->watch = *mem0(phymem,adr,mmu); | |
| 396 #else | |
| 397 bp->watch = mem[adr]; | |
| 398 #endif | |
| 21 | 399 } |
| 400 | |
| 401 int nexti(void) { | |
| 22 | 402 #ifdef USE_MMU |
| 403 int op1 = *mem0(phymem,pcreg,mmu); | |
| 404 int op2 = *mem0(phymem,pcreg+1,mmu); | |
| 405 #else | |
| 406 int op1 = mem[pcreg]; | |
| 407 int op2 = mem[pcreg+1]; | |
| 408 #endif | |
| 21 | 409 int ofs = 0; |
| 410 switch(op1) { | |
| 411 case 0x17: // LBSR | |
| 412 case 0xbd: // JSR extended | |
| 22 | 413 ofs=3; break; |
| 21 | 414 case 0x10: // page2 |
| 415 { | |
| 416 if (op2==0x3f) { // os9 system call | |
| 22 | 417 ofs=3; break; |
| 21 | 418 } |
| 419 } | |
|
29
3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
28
diff
changeset
|
420 break; |
| 21 | 421 case 0x11: // page3 |
| 422 { | |
| 423 if (op2==0x3f) { // SWI3 | |
| 22 | 424 ofs=2; break; |
| 21 | 425 } |
| 426 } | |
|
29
3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
28
diff
changeset
|
427 break; |
| 21 | 428 case 0x3f: // SWI |
| 22 | 429 ofs=1; break; |
| 21 | 430 case 0x3c: // CWAI |
| 431 case 0x8d: // BSR | |
| 432 case 0x9d: // JSR direct | |
| 22 | 433 ofs=2; break; |
| 21 | 434 case 0xad: // JSR index |
| 435 { | |
| 436 if (op2<0x80) ofs = 2; // 5bit ofs | |
| 437 else switch (op2&0xf) { | |
| 438 case 8: case 0xc: | |
| 439 ofs = 3; break; | |
| 440 case 9: case 0xd: case 0xf: | |
| 441 ofs = 4; break; | |
| 442 default: | |
| 443 ofs = 2; break; | |
| 444 } | |
| 445 } | |
| 446 break; | |
| 447 } | |
| 22 | 448 if (ofs) setbreak(pcreg+ofs,-1); |
| 449 return ofs; | |
| 21 | 450 } |
| 451 | |
| 452 | |
| 453 | |
| 454 | |
| 455 | |
| 456 | |
| 457 | |
| 458 |