Mercurial > hg > Members > kono > os9 > sbc09
annotate os9/mc09/mclibos9.c @ 108:014002970940
getc worked
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Sun, 30 Dec 2018 08:27:58 +0900 |
| parents | 6566b9f47f4a |
| children | 613615c9b946 |
| rev | line source |
|---|---|
| 101 | 1 /* |
| 2 * os9 driver | |
| 3 */ | |
| 4 | |
| 5 | |
| 6 typedef struct { | |
| 7 int fd; /* 0 */ | |
|
103
844305752064
no compile errors on mc09
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
102
diff
changeset
|
8 int fmode; /* 2 */ |
| 101 | 9 int len; /* 4 */ |
|
103
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no compile errors on mc09
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
102
diff
changeset
|
10 char *fname; /* 6 */ |
| 102 | 11 char *ptr; /* 8 */ |
| 12 char buff[256]; /* 10 */ | |
| 101 | 13 } FILE ; |
| 14 | |
| 15 #define FCBSIZE (sizeof(FILE)) | |
| 16 | |
| 99 | 17 #define NFILES 8 |
| 18 | |
| 19 #define NULL 0 | |
| 20 #define EOF (-1) | |
| 21 | |
| 22 #define stdin _fcbtbl[0] | |
| 23 #define stdout _fcbtbl[1] | |
| 24 #define stderr _fcbtbl[2] | |
| 25 | |
| 26 FILE *_fcbtbl[NFILES]; | |
| 27 | |
| 101 | 28 FILE _s0[3]; |
| 29 | |
| 30 #define STDIN (&_s0[0]) | |
| 31 #define STDOUT (&_s0[1]) | |
| 32 #define STDERR (&_s0[2]) | |
| 33 | |
| 105 | 34 _main(prog,args) |
| 35 char *prog; | |
| 101 | 36 char *args; |
| 99 | 37 {int i; |
| 104 | 38 char **argv,*p,*q; |
| 101 | 39 int argc,n,quote,c; |
| 40 stdin = STDIN; stdin->fd = 0; | |
| 41 stdout = STDOUT; stdout->fd = 1; | |
| 42 stderr = STDERR; stderr->fd = 2; | |
| 99 | 43 initheap(); |
| 44 for ( i = 3; i < NFILES; i++ ) _fcbtbl[i] = NULL; | |
| 101 | 45 /* create argv here */ |
| 46 argc = 0; | |
| 47 argv = 0; | |
| 48 for( i = 0; i < 2 ; i++ ) { | |
| 104 | 49 if (i==1) { |
| 50 argv = (char**)malloc(sizeof(char*)*(argc+1)); | |
| 51 argv[0] = prog; | |
| 52 } | |
| 53 n = 1; | |
| 54 quote = 0; | |
| 55 q = p = args; | |
| 56 if (i==1) argv[n] = args; | |
| 105 | 57 while((c = *p) && c!='\r') { |
| 101 | 58 if (c=='\'') { |
| 59 if (!quote) { | |
| 105 | 60 p++; |
| 101 | 61 quote = 1; |
| 62 } else { | |
| 105 | 63 p++; |
| 104 | 64 if (i==1) *q=0; |
| 101 | 65 quote = 0; |
| 66 } | |
| 67 } else if (c=='\\') { | |
| 68 p++; | |
| 69 } else if (c==' ') { | |
| 104 | 70 if (!quote) { |
| 71 if (i==1) { | |
| 105 | 72 *q = 0; argv[++n] = q+1; |
| 104 | 73 } |
| 74 } | |
| 101 | 75 } |
| 104 | 76 if (i==1) *q = *p; |
| 77 q++; p++; | |
| 101 | 78 } |
| 108 | 79 if (i==1&&p!=args) { *q = 0; argv[++n] = q+1; } |
| 104 | 80 argc = n; |
| 101 | 81 } |
| 104 | 82 argv[n]=0; |
| 99 | 83 main(argc,argv); |
| 84 } | |
| 85 | |
| 86 FILE *fopen(name,mode) | |
| 87 char *name,*mode; | |
| 88 {FILE *fcbp; | |
| 89 char *p; | |
| 90 int rd,wt,cm; | |
| 91 rd = wt = cm = 0; | |
| 92 for ( p = mode; *p; p++ ) { | |
| 93 switch ( *p ) { | |
| 94 case 'r': | |
| 95 rd = 1; break; | |
| 96 case 'w': | |
| 97 wt = 1; break; | |
| 98 case 'c': | |
| 99 cm = 1; break; | |
| 100 default: | |
| 101 return NULL; | |
| 102 } | |
| 103 } | |
| 104 if ( !(rd ^ wt) ) return NULL; | |
| 105 if ( rd ) return _open(name,cm); | |
| 106 else return _create(name,cm); | |
| 107 } | |
| 108 | |
| 109 FILE *_open(name,cm) | |
| 110 char *name; | |
| 111 int cm; | |
| 112 {FILE *fcbp; | |
| 113 int i; | |
| 114 for ( i = 0; i < NFILES; i++) | |
| 115 if ( _fcbtbl[i] == NULL ) break; | |
| 116 if ( i >= NFILES) return NULL; | |
| 117 if ( (fcbp = malloc(FCBSIZE)) == NULL ) return NULL; | |
| 118 if ( _setname(name,fcbp) == 0 ) return NULL; | |
| 101 | 119 #asm |
| 120 pshs x,y,u | |
| 121 ldx -4,u | |
| 122 lda 2,x mode | |
| 123 ldb 3,x src attribute | |
| 124 leax 6,x name | |
| 125 os9 I$Open | |
| 126 bcc _LC0001 | |
| 127 ldx -4,u | |
| 106 | 128 tfr a,b |
| 129 clra | |
| 101 | 130 std ,x |
| 131 bra _LC0002 | |
| 132 _LC0001 | |
| 133 ldx -4,u | |
| 134 clra | |
| 106 | 135 std 2,x err code |
| 101 | 136 ldd #-1 |
| 137 std ,x | |
| 138 _LC0002 | |
| 139 puls x,y,u | |
| 140 #endasm | |
| 102 | 141 if (fcbp->fd < 0 ) return NULL; |
| 142 fcbp->ptr = fcbp->buff; | |
| 101 | 143 fcbp->len = 0; |
| 99 | 144 return (_fcbtbl[i] = fcbp); |
| 145 } | |
| 146 | |
| 147 FILE *_create(name,cm) | |
| 148 char *name; | |
| 149 int cm; | |
| 150 {FILE *fcbp; | |
| 151 int i; | |
| 152 for ( i = 0; i < NFILES; i++) | |
| 153 if ( _fcbtbl[i] == NULL ) break; | |
| 154 if ( i >= NFILES) return NULL; | |
| 155 if ( (fcbp = malloc(FCBSIZE)) == NULL ) return NULL; | |
| 156 if ( _setname(name,fcbp) == 0 ) return NULL; | |
| 101 | 157 #asm |
| 158 pshs x,y,u | |
| 159 ldx -4,u | |
| 160 lda 2,x mode | |
| 161 ldb 3,x src attribute | |
| 162 leax 6,x name | |
|
103
844305752064
no compile errors on mc09
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
102
diff
changeset
|
163 os9 I$Create |
|
844305752064
no compile errors on mc09
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
102
diff
changeset
|
164 bcc _LC0003 |
| 101 | 165 ldx -4,u |
| 106 | 166 tfr a,b |
| 167 clra | |
| 101 | 168 std ,x |
|
103
844305752064
no compile errors on mc09
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
102
diff
changeset
|
169 bra _LC0004 |
|
844305752064
no compile errors on mc09
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
102
diff
changeset
|
170 _LC0003 |
| 101 | 171 ldx -4,u |
| 172 clra | |
| 173 stD 2,x err code | |
| 174 ldd #-1 | |
| 175 std ,x | |
|
103
844305752064
no compile errors on mc09
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
102
diff
changeset
|
176 _LC0004 |
| 101 | 177 puls x,y,u |
| 178 #endasm | |
| 102 | 179 if (fcbp->fd < 0 ) return NULL; |
| 180 fcbp->ptr = fcbp->buff; | |
| 101 | 181 fcbp->len = 0; |
| 99 | 182 return (_fcbtbl[i] = fcbp); |
| 183 } | |
| 184 | |
| 185 fclose(fcbp) | |
| 186 FILE *fcbp; | |
| 187 {int i; | |
| 188 for ( i = 0; i < NFILES; i++ ) | |
| 189 if ( fcbp == _fcbtbl[i] ) break; | |
| 190 if ( i >= NFILES ) return EOF; | |
| 191 _fcbtbl[i] = NULL; | |
| 192 if ( (fcbp == STDIN) || (fcbp == STDOUT) || (fcbp == STDERR) ) return 0; | |
| 101 | 193 #asm |
| 194 pshs x,y,u | |
| 195 ldx -4,u | |
| 106 | 196 lda 1,x |
| 101 | 197 os9 I$Close |
| 198 puls x,y,u | |
| 199 #endasm | |
| 99 | 200 mfree(fcbp); |
| 201 return 0; | |
| 202 } | |
| 203 | |
| 204 _setname(name,fcbp) | |
| 205 char *name,*fcbp; | |
| 206 {int i; | |
| 207 while(isspace(*name)) ++name; | |
| 208 if (isdigit(*name)) | |
| 209 { fcbp[3] = *name++ - '0'; | |
| 210 if (*name++ != '.') return 0; | |
| 211 } | |
| 212 else fcbp[3] = 0xff; | |
| 213 for (i = 4; i < 15; ++i) fcbp[i] = 0; | |
| 214 if (!isalpha(*name)) return -1; | |
| 215 for (i = 4; i < 12; ++i) | |
| 216 { if (!*name || (*name == '.')) break; | |
| 217 fcbp[i] = *name++; | |
| 218 } | |
| 219 while (*name && (*name != '.')) ++name; | |
| 220 if (*name == '.') | |
| 221 { ++name; | |
| 222 for (i = 12; i < 15; ++i) | |
| 223 { if (!*name) break; | |
| 224 fcbp[i] = *name++; | |
| 225 } | |
| 226 } | |
| 227 return 1; | |
| 228 } | |
| 229 | |
| 230 | |
| 231 getc(fcbp) | |
| 232 char *fcbp; | |
| 233 { | |
| 101 | 234 int c; |
| 235 #asm | |
| 108 | 236 pshs y |
| 237 ldx 4,u | |
| 101 | 238 lda 1,x file descriptor |
| 108 | 239 leax -1,u |
| 240 clr -2,u | |
| 101 | 241 ldy #1 |
| 242 os9 I$Read | |
|
103
844305752064
no compile errors on mc09
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
102
diff
changeset
|
243 bcc _LC0005 |
| 101 | 244 ldd #-1 |
| 108 | 245 std -2,u |
|
103
844305752064
no compile errors on mc09
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
102
diff
changeset
|
246 _LC0005 |
| 108 | 247 puls y |
| 101 | 248 #endasm |
| 99 | 249 } |
| 250 | |
| 251 putc(c,fcbp) | |
| 252 char c,*fcbp; | |
| 101 | 253 { |
| 254 int ret; | |
| 255 #asm | |
| 108 | 256 pshs y |
| 257 ldx 6,u | |
| 101 | 258 lda 1,x file descriptor |
| 108 | 259 leax 5,u |
| 101 | 260 ldy #1 |
| 261 os9 I$Write | |
| 108 | 262 puls y |
| 101 | 263 #endasm |
| 264 return c; | |
| 99 | 265 } |
| 266 | |
| 267 getchar() | |
| 268 { return getc(stdin); | |
| 269 } | |
| 270 | |
| 271 putchar(c) | |
| 272 char c; | |
| 273 { return putc(c,stdout); | |
| 274 } | |
| 275 | |
| 276 printf(s) | |
| 277 char *s; | |
| 278 { _fprintf(stdout,s,(int *)&s+1); | |
| 279 } | |
| 280 | |
| 281 fprintf(f,s) | |
| 282 char *f,*s; | |
| 283 { _fprintf(f,s,(int *)&s+1); | |
| 284 } | |
| 285 | |
| 286 _fprintf(f,s,p) | |
| 287 char *f,*s; | |
| 288 int *p; | |
| 289 {int l,m,n; | |
| 290 char c,buf[8]; | |
| 291 while(c = *s++) | |
| 292 if (c != '%') putc(c,f); | |
| 293 else | |
| 294 { if (l=(*s == '-')) ++s; | |
| 295 if (isdigit(*s)) s += _getint(&m,s); | |
| 296 else m = 0; | |
| 297 if (*s == '.') ++s; | |
| 298 if (isdigit(*s)) s += _getint(&n,s); | |
| 299 else n = 32767; | |
| 300 switch(*s++) | |
| 301 {case 'd': | |
| 302 itoa(*p++,buf); | |
| 303 break; | |
| 304 case 'o': | |
| 305 itooa(*p++,buf); | |
| 306 break; | |
| 307 case 'x': | |
| 308 itoxa(*p++,buf); | |
| 309 break; | |
| 310 case 'u': | |
| 311 itoua(*p++,buf); | |
| 312 break; | |
| 313 case 'c': | |
| 314 ctos(*p++,buf); | |
| 315 break; | |
| 316 case 's': | |
| 317 _putstr(f,*p++,l,m,n); | |
| 318 continue; | |
| 319 case '\0': | |
| 320 return; | |
| 321 default: | |
| 322 ctos(c,buf); | |
| 323 break; | |
| 324 } | |
| 325 _putstr(f,buf,l,m,n); | |
| 326 } | |
| 327 } | |
| 328 | |
| 329 _getint(p,s) | |
| 330 int *p; | |
| 331 char *s; | |
| 332 {int i; | |
| 333 for(*p=i=0; isdigit(*s); ++i) *p = *p * 10 + *s++ - '0'; | |
| 334 return i; | |
| 335 } | |
| 336 | |
| 337 _putstr(f,s,l,m,n) | |
| 338 char *f,*s; | |
| 339 int l,m,n; | |
| 340 {int k; | |
| 341 k = (strlen(s) < n ? strlen(s) : n); | |
| 342 m = (k < m ? m-k : 0); | |
| 343 if (l) | |
| 344 { _putsn(f,s,n); | |
| 345 _putspc(f,m); | |
| 346 } | |
| 347 else | |
| 348 { _putspc(f,m); | |
| 349 _putsn(f,s,n); | |
| 350 } | |
| 351 } | |
| 352 | |
| 353 _putsn(f,s,n) | |
| 354 char *f,*s; | |
| 355 int n; | |
| 356 { while(*s) | |
| 357 if (--n >= 0) putc(*s++,f); | |
| 358 else break; | |
| 359 } | |
| 360 | |
| 361 _putspc(f,n) | |
| 362 char *f; | |
| 363 int n; | |
| 364 { while(--n >= 0) putc(' ',f); | |
| 365 } | |
| 366 | |
| 367 puts(s) | |
| 368 char *s; | |
| 369 { while(*s) putchar(*s++); | |
| 370 } | |
| 371 | |
| 372 itoa(n,s) | |
| 373 int n; | |
| 374 char *s; | |
| 375 { if (n < 0) | |
| 376 { *s++ = '-'; | |
| 377 return (itoua(-n,s)+1); | |
| 378 } | |
| 379 return itoua(n,s); | |
| 380 } | |
| 381 | |
| 382 itoua(n,s) | |
| 383 int n; | |
| 384 char *s; | |
| 385 { return _itoda(n,s,10); | |
| 386 } | |
| 387 | |
| 388 itooa(n,s) | |
| 389 int n; | |
| 390 char *s; | |
| 391 { return _itoda(n,s,8); | |
| 392 } | |
| 393 | |
| 394 itoxa(n,s) | |
| 395 int n; | |
| 396 char *s; | |
| 397 { return _itoda(n,s,16); | |
| 398 } | |
| 399 | |
| 400 _itoac(n) | |
| 401 int n; | |
| 402 { return (n + ((n < 10) ? '0' : ('A'-10))); | |
| 403 } | |
| 404 | |
| 405 _itoda(n,s,r) | |
| 406 unsigned n; | |
| 407 int r; | |
| 408 char *s; | |
| 409 {int i; | |
| 410 char t[8],*u; | |
| 411 u = t; | |
| 412 *u++ = '\0'; | |
| 413 do *u++ = _itoac(n % r); while(n /= r); | |
| 414 for (i=0; *s++ = *--u; ++i); | |
| 415 return i; | |
| 416 } | |
| 417 | |
| 418 char *ctos(c,s) | |
| 419 char c,*s; | |
| 420 { s[0] = c; | |
| 421 s[1] = '\0'; | |
| 422 return s; | |
| 423 } | |
| 424 | |
| 425 strlen(s) | |
| 426 char *s; | |
| 427 {int i; | |
| 428 for(i = 0; *s++; ++i); | |
| 429 return i; | |
| 430 } | |
| 431 | |
| 432 isdigit(c) | |
| 433 char c; | |
| 434 { return '0' <= c && c <= '9'; | |
| 435 } | |
| 436 | |
| 437 isspace(c) | |
| 438 char c; | |
| 439 { return (c == ' ' || c == '\t' || c == '\n'); | |
| 440 } | |
| 441 | |
| 442 isalpha(c) | |
| 443 char c; | |
| 444 { return (isupper(c) || islower(c) || c == '_'); | |
| 445 } | |
| 446 | |
| 447 isupper(c) | |
| 448 char c; | |
| 449 { return ('A' <= c && c <= 'Z'); | |
| 450 } | |
| 451 | |
| 452 islower(c) | |
| 453 char c; | |
| 454 { return ('a' <= c && c <= 'z'); | |
| 455 } | |
| 456 | |
| 457 toupper(c) | |
| 458 char c; | |
| 459 { return (islower(c) ? c + ('A'-'a') : c); | |
| 460 } | |
| 461 | |
| 462 tolower(c) | |
| 463 char c; | |
| 464 { return (isupper(c) ? c + ('a'-'A') : c); | |
| 465 } | |
| 466 | |
| 467 atoi(s) | |
| 468 char *s; | |
| 469 {int i; | |
| 470 while (isspace(*s)) ++s; | |
| 471 for (i = 0; isdigit(*s);) i = i * 10 + *s++ - '0'; | |
| 472 return i; | |
| 473 } | |
| 474 | |
| 475 typedef struct header | |
| 476 { struct header *bptr; | |
| 477 unsigned bsize; | |
| 478 } HEADER; | |
| 479 | |
| 480 HEADER base,*allocp,*heapp; | |
| 481 | |
| 482 char *malloc(s) | |
| 483 unsigned s; | |
| 484 {HEADER *p,*q; | |
| 485 int nunits; | |
| 486 nunits = 1 + (s + sizeof(HEADER) - 1) / sizeof(HEADER); | |
| 487 if ((q = allocp) == NULL) | |
| 488 { base.bptr = allocp = q = &base; | |
| 489 base.bsize = 0; | |
| 490 } | |
| 491 for (p = q->bptr; ; q = p,p = p->bptr) | |
| 492 { if (p->bsize >= nunits) | |
| 493 { if (p->bsize == nunits) | |
| 494 q->bptr = p->bptr; | |
| 495 else | |
| 496 { p->bsize -= nunits; | |
| 497 p += p->bsize; | |
| 498 p->bsize = nunits; | |
| 499 } | |
| 500 allocp = q; | |
| 501 clearblock(p); | |
| 502 return ((char *)(p + 1)); | |
| 503 } | |
| 504 if (p == allocp) | |
| 505 if ((p = morecore(nunits)) == NULL) | |
| 506 return(NULL); | |
| 507 } | |
| 508 } | |
| 509 | |
| 510 clearblock(p) | |
| 511 HEADER *p; | |
| 512 {char *s,*t; | |
| 513 s = (char *)(p + 1); | |
| 514 t = (char *)(p + p->bsize); | |
| 515 while (s < t) *s++ = 0; | |
| 516 } | |
| 517 | |
| 518 #define NALLOC 128 | |
| 519 | |
| 520 HEADER *morecore(nu) | |
| 521 unsigned nu; | |
| 522 {char *cp; | |
| 523 HEADER *up; | |
| 524 int rnu; | |
| 525 rnu = NALLOC * ((nu + NALLOC - 1) / NALLOC); | |
| 526 cp = sbrk(rnu * sizeof(HEADER)); | |
| 527 if ((int)cp == -1) return NULL; | |
| 528 up = (HEADER *) cp; | |
| 529 up->bsize = rnu; | |
| 530 mfree((char *)(up+1)); | |
| 531 return allocp; | |
| 532 } | |
| 533 | |
| 534 #asm | |
| 535 sbrk PSHS U | |
| 536 LEAU ,S | |
| 105 | 537 PSHS D |
| 99 | 538 TFR S,D |
| 539 SUBD ,S++ | |
| 540 CMPD 4,U | |
| 541 BCC _mc1 | |
| 542 LDD #-1 | |
| 543 LEAS ,U | |
| 544 PULS U,PC | |
| 545 | |
| 546 _mc1 LDD 4,U | |
| 547 LDX heapp,Y | |
| 548 LEAX D,X | |
| 549 LDD heapp,Y | |
| 550 STX heapp,Y | |
| 551 LEAS ,U | |
| 552 PULS U,PC | |
| 553 | |
| 554 #endasm | |
| 555 | |
| 556 mfree(ap) | |
| 557 char *ap; | |
| 558 {HEADER *p,*q; | |
| 559 p = (HEADER *)ap - 1; | |
| 560 for (q = allocp; !(p > q && p < q->bptr); q = q->bptr) | |
| 561 if (q >= q->bptr && (p > q || p < q->bptr)) break; | |
| 562 if (p + p->bsize == q->bptr) | |
| 563 { p->bsize += q->bptr->bsize; | |
| 564 p->bptr = q->bptr->bptr; | |
| 565 } | |
| 566 else p->bptr = q->bptr; | |
| 567 if (q + q->bsize == p) | |
| 568 { q->bsize += p->bsize; | |
| 569 q->bptr = p->bptr; | |
| 570 } | |
| 571 else q->bptr = p; | |
| 572 allocp = q; | |
| 573 } | |
| 574 | |
| 575 unsigned freesize() | |
| 576 {int i; | |
| 577 if (!heapp) initheap(); | |
| 578 return ((char *)&i - (char *)heapp); | |
| 579 } |