Mercurial > hg > Members > kono > os9 > sbc09
annotate trace.c @ 23:5217f23f2f9e
break point
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 09 Jul 2018 14:54:43 +0900 |
| parents | 10e33568b38a |
| children | 7104ad38bed3 |
| 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); | |
|
12
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; |
| 61 struct bp *next; | |
| 62 } BP, *BPTR; | |
| 63 | |
| 64 BPTR breakpoint = 0; | |
| 65 int bpskip = 0; | |
| 66 int trskip = 0; | |
| 67 int stkskip = 0; | |
| 68 | |
| 69 int getarg(char *buf, char** next) { | |
| 70 return strtol(buf,(char**)next,0); | |
| 71 } | |
| 72 | |
| 73 void printhelp(void) | |
| 74 { | |
| 75 printf( | |
| 76 " s [count] one step trace\n" | |
| 77 " n step over\n" | |
| 78 " f finish this call (until stack pop)\n" | |
| 79 " b [adr] set break point\n" | |
| 80 " l break point list\n" | |
| 81 " d [n] delte break point list\n" | |
| 82 " c [count] continue;\n" | |
| 83 " x [adr] dump\n" | |
| 9 | 84 #ifdef USE_MMU |
| 85 " xp [adr] dump physical memory\n" | |
| 86 #endif | |
| 0 | 87 " xi [adr] disassemble\n" |
| 1 | 88 " 0 file disk drive 0 image\n" |
| 89 " 1 file disk drive 1 image\n" | |
| 0 | 90 " L file start log to file\n" |
| 91 " S file set input file\n" | |
| 92 " X exit\n" | |
| 93 " q exit\n" | |
| 94 " U file upload from srecord file \n" | |
| 95 " D file download to srecord file \n" | |
| 96 " R do reset\n" | |
| 97 " h,? print this\n" | |
| 98 ); | |
| 99 } | |
| 100 | |
| 21 | 101 |
| 102 void setbreak(int adr,int count) ; | |
| 22 | 103 int nexti(void); |
| 21 | 104 |
| 0 | 105 void do_escape(void) { |
| 106 char s[80]; | |
| 107 int adr,skip; | |
| 108 if (bpskip) { // skip unbreak instruction | |
| 109 bpskip--; | |
| 21 | 110 int lpc = paddr(pcreg,mmu); |
| 111 BPTR *prev = &breakpoint; | |
| 22 | 112 for(BPTR b = breakpoint; b ; prev=&b->next, b=b->next ) { |
| 21 | 113 if (lpc==b->address) { |
| 114 if (b->count==-1) { // temporaly break point | |
| 115 BPTR next = b->next; | |
| 116 free(b); | |
| 22 | 117 *prev = next; |
| 21 | 118 goto restart0; |
| 119 } | |
| 0 | 120 if (b->count) b->count--; |
| 121 if (b->count==0) { | |
| 122 goto restart0; | |
| 123 } | |
| 124 } | |
| 125 } | |
| 126 return; | |
| 127 } | |
| 128 if (stkskip) { // skip until return | |
| 129 if (sreg < stkskip ) return; | |
| 130 } | |
| 131 restart0: | |
| 132 stkskip = 0; | |
| 133 restore_term(); | |
| 9 | 134 #ifdef USE_MMU |
| 11 | 135 Byte *phyadr = mem0(phymem,pcreg,mmu); |
| 9 | 136 prog = (char*)phyadr - pcreg; |
| 137 #endif | |
| 0 | 138 do_trace(stdout); |
| 139 if (trskip>1) { // show trace and step | |
| 140 trskip--; | |
| 141 set_term(escchar); | |
| 142 return; | |
| 143 } | |
| 144 restart: | |
| 145 printf("v09>"); | |
| 146 fgets(s, 80, stdin); | |
| 147 if (s[0]) | |
| 148 s[strlen(s) - 1] = 0; | |
| 149 switch (s[0]) { | |
| 21 | 150 case 'n': // step over |
| 151 if (nexti()) { | |
| 152 bpskip = -1; | |
| 153 break; | |
| 154 } | |
| 0 | 155 case 's': // one step trace |
| 156 trskip = 1; | |
| 157 if (s[1]) { | |
| 158 trskip = getarg(s+1,0); | |
| 159 } | |
| 160 bpskip = 0; | |
| 161 attention = escape = 1; | |
| 162 break; | |
| 163 case 'f': // finish this call (until stack pop) | |
| 164 stkskip = sreg + 2; | |
| 165 attention = escape = 1; | |
| 166 break; | |
| 167 case 'b': // set break point | |
| 21 | 168 if (s[1]) { |
| 169 char *next; | |
| 170 int count = 0; | |
| 23 | 171 int adr = getarg(s+1,&next); |
| 21 | 172 if (next[0]) { |
| 173 count = getarg(next,&next); | |
| 174 } | |
| 175 setbreak(adr,count); | |
| 176 } else { | |
| 177 setbreak(pcreg,0); | |
| 0 | 178 } |
| 179 bpskip = -1; | |
| 180 goto restart; | |
| 181 case 'l': // break point list | |
| 182 for(BPTR bp = breakpoint; bp ; bp = bp->next) { | |
| 21 | 183 #ifdef USE_MMU |
| 184 printf("%x %x %d\n", bp->laddr, bp->address, bp->count); | |
| 185 #else | |
| 186 printf("%x %d\n", bp->address, bp->count); | |
| 187 #endif | |
| 0 | 188 } |
| 189 goto restart; | |
| 190 case 'd': // delte break point list | |
| 191 if (s[1]) { | |
| 192 int trskip = getarg(s+1,0); | |
| 193 BPTR *prev = &breakpoint; | |
| 22 | 194 for(BPTR bp = breakpoint; bp ; prev=&bp->next, bp = bp->next) { |
| 0 | 195 if (trskip-- == 0) { |
| 22 | 196 BPTR next = bp->next; |
| 21 | 197 free(bp); |
| 22 | 198 *prev = next; |
| 0 | 199 break; |
| 200 } | |
| 201 prev = &bp->next; | |
| 202 } | |
| 203 } | |
| 204 goto restart; | |
| 205 case 'c': // continue; | |
| 206 bpskip = -1; | |
| 207 attention = escape = 1; | |
| 208 if (s[1]) { | |
| 209 bpskip = getarg(s+1,0); | |
| 210 } | |
| 211 break; | |
| 212 case 'x': // dump | |
| 213 skip = 1; | |
| 214 if (s[1]=='i') skip=2; | |
| 9 | 215 if (s[1]=='p') skip=2; |
| 0 | 216 if (s[skip]) { |
| 217 char *next; | |
| 218 int adr = getarg(s+skip,&next); | |
| 219 int len = 32; | |
| 220 if (next[0]) { | |
| 221 len = getarg(next,&next); | |
| 222 } | |
| 9 | 223 if (skip==2 && s[1]=='i') { |
|
12
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
224 Word end = adr + len; |
|
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
225 while(adr < end) { |
| 9 | 226 #ifdef USE_MMU |
|
12
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
227 Byte *phyadr = mem0(phymem,adr,mmu); |
|
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
228 prog = (char*)phyadr - adr ; |
|
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
229 if (phyadr > phymem+memsize) goto restart; |
| 9 | 230 #endif |
|
12
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
231 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
|
232 adr = disasm(adr,adr+len); |
| 9 | 233 } |
| 0 | 234 } else { |
| 9 | 235 #ifdef USE_MMU |
| 236 for(int i=0; len > 0 ; i+=16, len-=16) { | |
| 237 if (skip==2 && s[1]=='p') { | |
| 238 if (adr+i > memsize) goto restart; | |
| 239 hexadump(phymem+adr+i,len>16?16:len,adr+i,16); | |
| 240 } else { | |
| 11 | 241 Byte *phyadr = mem0(phymem,adr+i,mmu); |
| 9 | 242 if (phyadr > phymem+memsize) goto restart; |
| 243 hexadump(phyadr,len>16?16:len,adr+i,16); | |
| 244 } | |
| 245 } | |
| 246 #else | |
| 0 | 247 for(int i=0; len > 0 ; i+=16, len-=16) { |
| 248 hexadump(mem+adr+i,len>16?16:len,adr+i,16); | |
| 249 } | |
| 9 | 250 #endif |
| 0 | 251 } |
| 252 } else | |
| 253 disasm(pcreg,pcreg+32); | |
| 254 goto restart; | |
| 255 case 'L': | |
| 256 if (logfile) | |
| 257 fclose(logfile); | |
| 258 logfile = 0; | |
| 259 if (s[1]) { | |
| 1 | 260 int i=1; while(s[i]==' ') i++; |
| 261 logfile = fopen(s + i, "w"); | |
| 0 | 262 } |
| 263 break; | |
| 264 case 'S': | |
| 265 if (infile) | |
| 266 fclose(infile); | |
| 267 infile = 0; | |
| 268 if (s[1]) { | |
| 1 | 269 int i=1; while(s[i]==' ') i++; |
| 270 infile = fopen(s + i, "r"); | |
| 0 | 271 } |
| 272 break; | |
| 273 case 'h': | |
| 274 case '?': | |
| 275 printhelp(); | |
| 276 goto restart; | |
| 277 case 'X': | |
| 278 case 'q': | |
| 279 if (!xmstat) | |
| 280 do_exit(); | |
| 281 else { | |
| 282 xmstat = 0; | |
| 283 fclose(xfile); | |
| 284 xfile = 0; | |
| 285 } | |
| 286 break; | |
| 1 | 287 case '0': |
| 288 case '1': | |
| 289 { FILE **drv = &disk[ s[0]-'0'] ; | |
| 290 if (*drv) | |
| 291 fclose(*drv); | |
| 292 *drv = 0; | |
| 293 if (s[1]) { | |
| 294 int i=1; while(s[i]==' ') i++; | |
| 295 *drv = fopen(s + i, "r+b"); | |
| 296 if ( *drv == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 297 } | |
| 298 } | |
| 299 break; | |
| 0 | 300 case 'U': |
| 301 if (xfile) | |
| 302 fclose(xfile); | |
| 303 xfile = 0; | |
| 304 if (s[1]) { | |
| 1 | 305 int i=1; while(s[i]==' ') i++; |
| 306 xfile = fopen(s + i, "rb"); | |
| 307 if ( xfile == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 0 | 308 } |
| 309 if (xfile) | |
| 310 xmstat = 1; | |
| 311 else | |
| 312 xmstat = 0; | |
| 313 xidx = 0; | |
| 314 acknak = 21; | |
| 315 rcvdnak = EOF; | |
| 316 blocknum = 1; | |
| 317 break; | |
| 318 case 'D': | |
| 319 if (xfile) | |
| 320 fclose(xfile); | |
| 321 xfile = 0; | |
| 322 if (s[1]) { | |
| 1 | 323 int i=1; while(s[i]==' ') i++; |
| 324 xfile = fopen(s + i, "wb"); | |
| 325 if ( xfile == 0 ) { printf("can't open %s\n", &s[i]); } | |
| 0 | 326 } |
| 327 if (xfile) | |
| 328 xmstat = 2; | |
| 329 else | |
| 330 xmstat = 0; | |
| 331 xidx = 0; | |
| 332 acknak = 21; | |
| 333 blocknum = 1; | |
| 334 break; | |
| 335 case 'R': | |
| 336 pcreg = (mem[0xfffe] << 8) + mem[0xffff]; | |
| 13 | 337 bpskip = 0; |
| 338 attention = escape = 1; | |
| 0 | 339 break; |
| 340 } | |
| 341 if (tracing||breakpoint||trskip||bpskip||stkskip) { attention = escape = 1; } | |
| 342 else attention = 0; | |
| 343 set_term(escchar); | |
| 344 } | |
| 345 | |
| 21 | 346 void setbreak(int adr, int count) { |
| 347 BPTR bp = calloc(1,sizeof(BP)); | |
| 348 bp->next = breakpoint; | |
| 349 breakpoint = bp; | |
| 350 bp->count = count; | |
| 22 | 351 bp->laddr = adr; |
| 352 bp->address = paddr(adr,mmu); | |
| 21 | 353 } |
| 354 | |
| 355 int nexti(void) { | |
| 22 | 356 #ifdef USE_MMU |
| 357 int op1 = *mem0(phymem,pcreg,mmu); | |
| 358 int op2 = *mem0(phymem,pcreg+1,mmu); | |
| 359 #else | |
| 360 int op1 = mem[pcreg]; | |
| 361 int op2 = mem[pcreg+1]; | |
| 362 #endif | |
| 21 | 363 int ofs = 0; |
| 364 switch(op1) { | |
| 365 case 0x17: // LBSR | |
| 366 case 0xbd: // JSR extended | |
| 22 | 367 ofs=3; break; |
| 21 | 368 case 0x10: // page2 |
| 369 { | |
| 370 if (op2==0x3f) { // os9 system call | |
| 22 | 371 ofs=3; break; |
| 21 | 372 } |
| 373 } | |
| 374 case 0x11: // page3 | |
| 375 { | |
| 376 if (op2==0x3f) { // SWI3 | |
| 22 | 377 ofs=2; break; |
| 21 | 378 } |
| 379 } | |
| 380 case 0x3f: // SWI | |
| 22 | 381 ofs=1; break; |
| 21 | 382 case 0x3c: // CWAI |
| 383 case 0x8d: // BSR | |
| 384 case 0x9d: // JSR direct | |
| 22 | 385 ofs=2; break; |
| 21 | 386 case 0xad: // JSR index |
| 387 { | |
| 388 if (op2<0x80) ofs = 2; // 5bit ofs | |
| 389 else switch (op2&0xf) { | |
| 390 case 8: case 0xc: | |
| 391 ofs = 3; break; | |
| 392 case 9: case 0xd: case 0xf: | |
| 393 ofs = 4; break; | |
| 394 default: | |
| 395 ofs = 2; break; | |
| 396 } | |
| 397 } | |
| 398 break; | |
| 399 } | |
| 22 | 400 if (ofs) setbreak(pcreg+ofs,-1); |
| 401 return ofs; | |
| 21 | 402 } |
| 403 | |
| 404 | |
| 405 | |
| 406 | |
| 407 | |
| 408 | |
| 409 | |
| 410 |