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annotate src/trace.c @ 59:7c6dc25c2b05
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| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 23 Jul 2018 20:17:12 +0900 |
| parents | 2088fd998865 |
| children | 41f14f365b34 |
| 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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boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
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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 | |
| 71 int getarg(char *buf, char** next) { | |
| 35 | 72 int value = strtol(buf,next,0); |
| 73 for(;next;) { | |
| 74 if ( **next == '+' ) { | |
| 75 value += strtol(*next+1,next,0); | |
| 76 } else if ( **next == '*' ) { | |
| 77 value *= strtol(*next+1,next,0); | |
| 78 } else if ( **next == '/' ) { | |
| 79 value /= strtol(*next+1,next,0); | |
| 80 } else if ( **next == '-' ) { | |
| 81 value -= strtol(*next+1,next,0); | |
| 82 } else if ( **next == '&' ) { | |
| 83 value &= strtol(*next+1,next,0); | |
| 84 } else if ( **next == '|' ) { | |
| 85 value |= strtol(*next+1,next,0); | |
| 86 } else break; | |
| 87 } | |
| 88 return value; | |
| 0 | 89 } |
| 90 | |
| 91 void printhelp(void) | |
| 92 { | |
| 93 printf( | |
| 94 " s [count] one step trace\n" | |
| 95 " n step over\n" | |
| 96 " f finish this call (until stack pop)\n" | |
| 28 | 97 " b [adr] set break point (on current physical addreaa)\n" |
| 33 | 98 " B break point list\n" |
| 0 | 99 " d [n] delte break point list\n" |
| 100 " c [count] continue;\n" | |
| 33 | 101 " x [adr] [count] dump\n" |
| 9 | 102 #ifdef USE_MMU |
| 28 | 103 " xp page [adr] dump physical memory\n" |
| 9 | 104 #endif |
| 33 | 105 " xi [adr] [count] disassemble\n" |
| 1 | 106 " 0 file disk drive 0 image\n" |
| 107 " 1 file disk drive 1 image\n" | |
| 0 | 108 " L file start log to file\n" |
| 109 " S file set input file\n" | |
| 110 " X exit\n" | |
| 111 " q exit\n" | |
| 112 " U file upload from srecord file \n" | |
| 113 " D file download to srecord file \n" | |
| 114 " R do reset\n" | |
| 115 " h,? print this\n" | |
| 116 ); | |
| 117 } | |
| 118 | |
| 21 | 119 |
| 120 void setbreak(int adr,int count) ; | |
| 22 | 121 int nexti(void); |
| 21 | 122 |
| 0 | 123 void do_escape(void) { |
| 124 char s[80]; | |
| 28 | 125 int adr,page; |
| 38 | 126 int ppc = paddr(pcreg,mmu); |
| 0 | 127 if (bpskip) { // skip unbreak instruction |
| 128 bpskip--; | |
| 21 | 129 BPTR *prev = &breakpoint; |
| 22 | 130 for(BPTR b = breakpoint; b ; prev=&b->next, b=b->next ) { |
| 35 | 131 #ifdef USE_MMU |
| 132 int watch = phymem[b->address]; | |
| 133 #else | |
| 134 int watch = mem[b->address]; | |
| 135 #endif | |
| 136 if (ppc==b->address || b->watch != watch ) { | |
| 137 b->watch = watch; | |
| 21 | 138 if (b->count==-1) { // temporaly break point |
| 139 BPTR next = b->next; | |
| 140 free(b); | |
| 22 | 141 *prev = next; |
| 21 | 142 goto restart0; |
| 143 } | |
| 0 | 144 if (b->count) b->count--; |
| 145 if (b->count==0) { | |
| 146 goto restart0; | |
| 147 } | |
| 148 } | |
| 149 } | |
| 150 return; | |
| 151 } | |
| 152 if (stkskip) { // skip until return | |
| 38 | 153 #ifdef USE_MMU |
| 154 if (phymem[ppc]==0x3b||(phymem[ppc]==0x10&&phymem[ppc+1]==0x3f)) | |
| 155 goto restart0; | |
| 156 #else | |
| 157 if (mem[ppc]==0x3b||(mem[ppc]==0x10&&mem[ppc+1]==0x3f)) | |
| 158 goto restart0; | |
| 159 #endif | |
| 0 | 160 if (sreg < stkskip ) return; |
| 161 } | |
| 162 restart0: | |
| 163 stkskip = 0; | |
| 164 restore_term(); | |
| 9 | 165 #ifdef USE_MMU |
| 38 | 166 Byte *phyadr = phymem + ppc; |
| 9 | 167 prog = (char*)phyadr - pcreg; |
| 168 #endif | |
| 0 | 169 do_trace(stdout); |
| 170 if (trskip>1) { // show trace and step | |
| 171 trskip--; | |
| 35 | 172 int watch; // watch point |
| 0 | 173 set_term(escchar); |
| 174 return; | |
| 175 } | |
| 176 restart: | |
| 177 printf("v09>"); | |
| 28 | 178 fgets(s, sizeof(s)-1, stdin); |
| 179 s[strlen(s)-1] = 0; // chop | |
| 0 | 180 switch (s[0]) { |
| 21 | 181 case 'n': // step over |
| 182 if (nexti()) { | |
| 183 bpskip = -1; | |
| 184 break; | |
| 185 } | |
| 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; | |
| 59 | 243 /* |
| 244 * we should have disassembler for a mmu page | |
| 245 */ | |
| 28 | 246 case 'x': // dump |
| 247 { char *next = s+1; | |
| 248 if (s[1]=='i') next=s+2; | |
| 249 else if (s[1]=='p') { | |
| 250 next = s+2; | |
| 251 if (next[0]) { | |
| 252 page = getarg(next,&next); | |
| 253 } | |
| 254 } | |
| 255 if (next[0]) { | |
| 256 int adr = getarg(next,&next); | |
| 0 | 257 int len = 32; |
| 258 if (next[0]) { | |
| 259 len = getarg(next,&next); | |
| 260 } | |
| 28 | 261 if (s[1]=='i') { |
|
12
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
262 Word end = adr + len; |
|
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
263 while(adr < end) { |
| 9 | 264 #ifdef USE_MMU |
|
12
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
265 Byte *phyadr = mem0(phymem,adr,mmu); |
|
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
266 prog = (char*)phyadr - adr ; |
|
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
267 if (phyadr > phymem+memsize) goto restart; |
| 9 | 268 #endif |
|
12
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
269 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
|
270 adr = disasm(adr,adr+len); |
| 9 | 271 } |
| 0 | 272 } else { |
| 9 | 273 #ifdef USE_MMU |
| 274 for(int i=0; len > 0 ; i+=16, len-=16) { | |
| 28 | 275 if (s[1]=='p') { |
| 276 int phy = page * 0x2000 + adr + i; | |
| 277 if (phy > rommemsize) goto restart; | |
| 278 hexadump(phymem+phy,len>16?16:len,adr+i,16); | |
| 9 | 279 } else { |
| 11 | 280 Byte *phyadr = mem0(phymem,adr+i,mmu); |
| 28 | 281 if (phyadr > phymem+rommemsize) goto restart; |
| 9 | 282 hexadump(phyadr,len>16?16:len,adr+i,16); |
| 283 } | |
| 284 } | |
| 285 #else | |
| 0 | 286 for(int i=0; len > 0 ; i+=16, len-=16) { |
| 287 hexadump(mem+adr+i,len>16?16:len,adr+i,16); | |
| 288 } | |
| 9 | 289 #endif |
| 0 | 290 } |
| 291 } else | |
| 292 disasm(pcreg,pcreg+32); | |
| 293 goto restart; | |
| 28 | 294 } |
| 0 | 295 case 'L': |
| 296 if (logfile) | |
| 297 fclose(logfile); | |
| 298 logfile = 0; | |
| 299 if (s[1]) { | |
| 1 | 300 int i=1; while(s[i]==' ') i++; |
| 301 logfile = fopen(s + i, "w"); | |
| 0 | 302 } |
| 303 break; | |
| 304 case 'S': | |
| 305 if (infile) | |
| 306 fclose(infile); | |
| 307 infile = 0; | |
| 308 if (s[1]) { | |
| 1 | 309 int i=1; while(s[i]==' ') i++; |
| 310 infile = fopen(s + i, "r"); | |
| 0 | 311 } |
| 312 break; | |
| 313 case 'h': | |
| 314 case '?': | |
| 315 printhelp(); | |
| 316 goto restart; | |
| 317 case 'X': | |
| 318 case 'q': | |
| 319 if (!xmstat) | |
| 320 do_exit(); | |
| 321 else { | |
| 322 xmstat = 0; | |
| 323 fclose(xfile); | |
| 324 xfile = 0; | |
| 325 } | |
| 326 break; | |
| 1 | 327 case '0': |
| 328 case '1': | |
| 329 { FILE **drv = &disk[ s[0]-'0'] ; | |
| 330 if (*drv) | |
| 331 fclose(*drv); | |
| 332 *drv = 0; | |
| 333 if (s[1]) { | |
| 334 int i=1; while(s[i]==' ') i++; | |
| 335 *drv = fopen(s + i, "r+b"); | |
| 336 if ( *drv == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 337 } | |
| 338 } | |
| 339 break; | |
| 0 | 340 case 'U': |
| 341 if (xfile) | |
| 342 fclose(xfile); | |
| 343 xfile = 0; | |
| 344 if (s[1]) { | |
| 1 | 345 int i=1; while(s[i]==' ') i++; |
| 346 xfile = fopen(s + i, "rb"); | |
| 347 if ( xfile == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 0 | 348 } |
| 349 if (xfile) | |
| 350 xmstat = 1; | |
| 351 else | |
| 352 xmstat = 0; | |
| 353 xidx = 0; | |
| 354 acknak = 21; | |
| 355 rcvdnak = EOF; | |
| 356 blocknum = 1; | |
| 357 break; | |
| 358 case 'D': | |
| 359 if (xfile) | |
| 360 fclose(xfile); | |
| 361 xfile = 0; | |
| 362 if (s[1]) { | |
| 1 | 363 int i=1; while(s[i]==' ') i++; |
| 364 xfile = fopen(s + i, "wb"); | |
| 365 if ( xfile == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 0 | 366 } |
| 367 if (xfile) | |
| 368 xmstat = 2; | |
| 369 else | |
| 370 xmstat = 0; | |
| 371 xidx = 0; | |
| 372 acknak = 21; | |
| 373 blocknum = 1; | |
| 374 break; | |
| 375 case 'R': | |
| 376 pcreg = (mem[0xfffe] << 8) + mem[0xffff]; | |
| 13 | 377 bpskip = 0; |
| 24 | 378 #ifdef USE_MMU |
| 379 mmu = &mem[0xffa0]; | |
| 28 | 380 mem[0xffa7]=0x3f; |
| 24 | 381 #endif |
| 13 | 382 attention = escape = 1; |
| 59 | 383 // we have to reload romfile |
| 384 // readimage(); | |
| 0 | 385 break; |
|
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51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
386 default: // one step trace |
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51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
387 trskip = 1; |
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51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
388 bpskip = 0; |
|
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
389 attention = escape = 1; |
| 0 | 390 } |
| 391 if (tracing||breakpoint||trskip||bpskip||stkskip) { attention = escape = 1; } | |
| 392 else attention = 0; | |
| 393 set_term(escchar); | |
| 394 } | |
| 395 | |
| 59 | 396 /* |
| 397 * keep break point / watch point in a list | |
| 398 */ | |
| 21 | 399 void setbreak(int adr, int count) { |
| 400 BPTR bp = calloc(1,sizeof(BP)); | |
| 401 bp->count = count; | |
| 22 | 402 bp->laddr = adr; |
| 403 bp->address = paddr(adr,mmu); | |
| 35 | 404 #ifdef USE_MMU |
|
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51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
405 if (bp->address >= memsize) { free(bp); return; } |
| 35 | 406 bp->watch = *mem0(phymem,adr,mmu); |
| 407 #else | |
| 408 bp->watch = mem[adr]; | |
| 409 #endif | |
|
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51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
410 bp->next = breakpoint; |
|
51b437557f42
boot without disk image
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
38
diff
changeset
|
411 breakpoint = bp; |
| 21 | 412 } |
| 413 | |
| 59 | 414 /* |
| 415 * length call instruction | |
| 416 * | |
| 417 * if call instruction, put temporary break on next instruction | |
| 418 * (ignoring page boundary, sorry) | |
| 419 */ | |
| 21 | 420 int nexti(void) { |
| 22 | 421 #ifdef USE_MMU |
| 422 int op1 = *mem0(phymem,pcreg,mmu); | |
| 423 int op2 = *mem0(phymem,pcreg+1,mmu); | |
| 424 #else | |
| 425 int op1 = mem[pcreg]; | |
| 426 int op2 = mem[pcreg+1]; | |
| 427 #endif | |
| 21 | 428 int ofs = 0; |
| 429 switch(op1) { | |
| 430 case 0x17: // LBSR | |
| 431 case 0xbd: // JSR extended | |
| 22 | 432 ofs=3; break; |
| 21 | 433 case 0x10: // page2 |
| 434 { | |
| 435 if (op2==0x3f) { // os9 system call | |
| 22 | 436 ofs=3; break; |
| 21 | 437 } |
| 438 } | |
|
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3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
28
diff
changeset
|
439 break; |
| 21 | 440 case 0x11: // page3 |
| 441 { | |
| 442 if (op2==0x3f) { // SWI3 | |
| 22 | 443 ofs=2; break; |
| 21 | 444 } |
| 445 } | |
|
29
3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
28
diff
changeset
|
446 break; |
| 21 | 447 case 0x3f: // SWI |
| 22 | 448 ofs=1; break; |
| 21 | 449 case 0x3c: // CWAI |
| 450 case 0x8d: // BSR | |
| 451 case 0x9d: // JSR direct | |
| 22 | 452 ofs=2; break; |
| 21 | 453 case 0xad: // JSR index |
| 454 { | |
| 455 if (op2<0x80) ofs = 2; // 5bit ofs | |
| 456 else switch (op2&0xf) { | |
| 457 case 8: case 0xc: | |
| 458 ofs = 3; break; | |
| 459 case 9: case 0xd: case 0xf: | |
| 460 ofs = 4; break; | |
| 461 default: | |
| 462 ofs = 2; break; | |
| 463 } | |
| 464 } | |
| 465 break; | |
| 466 } | |
| 22 | 467 if (ofs) setbreak(pcreg+ofs,-1); |
| 468 return ofs; | |
| 21 | 469 } |
| 470 | |
| 59 | 471 /* end */ |