Mercurial > hg > Members > kono > os9 > sbc09
annotate os9/mc09/mclibos9.c @ 110:098b3feab38c
mc09 test program worked
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 31 Dec 2018 15:57:24 +0900 |
| parents | 613615c9b946 |
| children | c4e909f21b25 |
| rev | line source |
|---|---|
| 101 | 1 /* |
| 2 * os9 driver | |
| 3 */ | |
| 4 | |
| 5 | |
|
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6 int errno = 0; |
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7 |
| 101 | 8 typedef struct { |
| 9 int fd; /* 0 */ | |
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10 int fmode; /* 2 */ |
| 101 | 11 int len; /* 4 */ |
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12 char *fname; /* 6 */ |
| 109 | 13 /* |
| 14 char *ptr; /* 8 | |
| 15 char buff[256]; /* 10/ | |
| 16 */ | |
| 101 | 17 } FILE ; |
| 18 | |
| 19 #define FCBSIZE (sizeof(FILE)) | |
| 20 | |
| 99 | 21 #define NFILES 8 |
| 22 | |
| 23 #define NULL 0 | |
| 24 #define EOF (-1) | |
| 25 | |
| 26 #define stdin _fcbtbl[0] | |
| 27 #define stdout _fcbtbl[1] | |
| 28 #define stderr _fcbtbl[2] | |
| 29 | |
| 30 FILE *_fcbtbl[NFILES]; | |
| 31 | |
| 101 | 32 FILE _s0[3]; |
| 33 | |
| 34 #define STDIN (&_s0[0]) | |
| 35 #define STDOUT (&_s0[1]) | |
| 36 #define STDERR (&_s0[2]) | |
| 37 | |
| 105 | 38 _main(prog,args) |
| 39 char *prog; | |
| 101 | 40 char *args; |
| 99 | 41 {int i; |
| 104 | 42 char **argv,*p,*q; |
| 101 | 43 int argc,n,quote,c; |
| 44 stdin = STDIN; stdin->fd = 0; | |
| 45 stdout = STDOUT; stdout->fd = 1; | |
| 46 stderr = STDERR; stderr->fd = 2; | |
| 99 | 47 initheap(); |
| 48 for ( i = 3; i < NFILES; i++ ) _fcbtbl[i] = NULL; | |
| 101 | 49 /* create argv here */ |
| 50 argc = 0; | |
| 51 argv = 0; | |
| 52 for( i = 0; i < 2 ; i++ ) { | |
| 104 | 53 if (i==1) { |
| 54 argv = (char**)malloc(sizeof(char*)*(argc+1)); | |
| 55 argv[0] = prog; | |
| 56 } | |
| 57 n = 1; | |
| 58 quote = 0; | |
| 59 q = p = args; | |
| 60 if (i==1) argv[n] = args; | |
| 105 | 61 while((c = *p) && c!='\r') { |
| 101 | 62 if (c=='\'') { |
| 63 if (!quote) { | |
| 105 | 64 p++; |
| 101 | 65 quote = 1; |
| 66 } else { | |
| 105 | 67 p++; |
| 104 | 68 if (i==1) *q=0; |
| 101 | 69 quote = 0; |
| 70 } | |
| 71 } else if (c=='\\') { | |
| 72 p++; | |
| 73 } else if (c==' ') { | |
| 104 | 74 if (!quote) { |
| 75 if (i==1) { | |
| 105 | 76 *q = 0; argv[++n] = q+1; |
| 104 | 77 } |
| 78 } | |
| 101 | 79 } |
| 104 | 80 if (i==1) *q = *p; |
| 81 q++; p++; | |
| 101 | 82 } |
| 108 | 83 if (i==1&&p!=args) { *q = 0; argv[++n] = q+1; } |
| 104 | 84 argc = n; |
| 101 | 85 } |
| 104 | 86 argv[n]=0; |
| 99 | 87 main(argc,argv); |
| 88 } | |
| 89 | |
| 90 FILE *fopen(name,mode) | |
| 91 char *name,*mode; | |
| 92 {FILE *fcbp; | |
| 93 char *p; | |
| 94 int rd,wt,cm; | |
| 95 rd = wt = cm = 0; | |
| 96 for ( p = mode; *p; p++ ) { | |
| 97 switch ( *p ) { | |
| 98 case 'r': | |
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99 rd = 1; cm |= 1; break; |
| 99 | 100 case 'w': |
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101 wt = 1; cm |= 2; break; |
| 99 | 102 case 'c': |
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parents:
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103 cm = 2; break; |
| 99 | 104 default: |
| 105 return NULL; | |
| 106 } | |
| 107 } | |
| 108 if ( !(rd ^ wt) ) return NULL; | |
| 109 if ( rd ) return _open(name,cm); | |
| 110 else return _create(name,cm); | |
| 111 } | |
| 112 | |
| 113 FILE *_open(name,cm) | |
| 114 char *name; | |
| 115 int cm; | |
| 116 {FILE *fcbp; | |
| 117 int i; | |
| 118 for ( i = 0; i < NFILES; i++) | |
| 119 if ( _fcbtbl[i] == NULL ) break; | |
| 120 if ( i >= NFILES) return NULL; | |
| 121 if ( (fcbp = malloc(FCBSIZE)) == NULL ) return NULL; | |
| 122 if ( _setname(name,fcbp) == 0 ) return NULL; | |
| 101 | 123 #asm |
| 124 pshs x,y,u | |
| 109 | 125 ldx -2,u |
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126 lda 7,u mode |
| 109 | 127 ldx 6,x name |
| 101 | 128 os9 I$Open |
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129 bcs _LC0001 |
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130 ldx -2,u |
| 106 | 131 tfr a,b |
| 132 clra | |
| 101 | 133 std ,x |
| 134 bra _LC0002 | |
| 135 _LC0001 | |
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parents:
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136 ldx -2,u |
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098b3feab38c
mc09 test program worked
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parents:
109
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137 tfr a,b |
| 101 | 138 clra |
| 106 | 139 std 2,x err code |
| 101 | 140 ldd #-1 |
| 141 std ,x | |
| 142 _LC0002 | |
| 143 puls x,y,u | |
| 144 #endasm | |
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parents:
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145 if (fcbp->fd < 0 ) { errno = fcbp->fmode ; return NULL; } |
| 109 | 146 /* fcbp->ptr = fcbp->buff; |
| 147 fcbp->len = 0; */ | |
| 99 | 148 return (_fcbtbl[i] = fcbp); |
| 149 } | |
| 150 | |
| 151 FILE *_create(name,cm) | |
| 152 char *name; | |
| 153 int cm; | |
| 154 {FILE *fcbp; | |
| 155 int i; | |
| 156 for ( i = 0; i < NFILES; i++) | |
| 157 if ( _fcbtbl[i] == NULL ) break; | |
| 158 if ( i >= NFILES) return NULL; | |
| 159 if ( (fcbp = malloc(FCBSIZE)) == NULL ) return NULL; | |
| 160 if ( _setname(name,fcbp) == 0 ) return NULL; | |
| 101 | 161 #asm |
| 162 pshs x,y,u | |
| 109 | 163 ldx -2,u |
|
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mc09 test program worked
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
109
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164 lda 7,u mode |
| 109 | 165 ldx 6,x name |
|
103
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no compile errors on mc09
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
102
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166 os9 I$Create |
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110
098b3feab38c
mc09 test program worked
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
109
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167 bcs _LC0003 |
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098b3feab38c
mc09 test program worked
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
109
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168 ldx -2,u |
| 106 | 169 tfr a,b |
| 170 clra | |
| 101 | 171 std ,x |
|
103
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no compile errors on mc09
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
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172 bra _LC0004 |
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no compile errors on mc09
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
102
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173 _LC0003 |
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110
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mc09 test program worked
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
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174 ldx -2,u |
|
098b3feab38c
mc09 test program worked
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
109
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175 tfr a,b |
| 101 | 176 clra |
| 177 stD 2,x err code | |
| 178 ldd #-1 | |
| 179 std ,x | |
|
103
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no compile errors on mc09
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
102
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180 _LC0004 |
| 101 | 181 puls x,y,u |
| 182 #endasm | |
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parents:
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183 if (fcbp->fd < 0 ) { errno = fcbp->fmode ; return NULL; } |
| 109 | 184 /* fcbp->ptr = fcbp->buff; |
| 185 fcbp->len = 0; */ | |
| 99 | 186 return (_fcbtbl[i] = fcbp); |
| 187 } | |
| 188 | |
| 189 fclose(fcbp) | |
| 190 FILE *fcbp; | |
| 191 {int i; | |
| 192 for ( i = 0; i < NFILES; i++ ) | |
| 193 if ( fcbp == _fcbtbl[i] ) break; | |
| 194 if ( i >= NFILES ) return EOF; | |
| 195 _fcbtbl[i] = NULL; | |
| 196 if ( (fcbp == STDIN) || (fcbp == STDOUT) || (fcbp == STDERR) ) return 0; | |
| 101 | 197 #asm |
| 198 pshs x,y,u | |
| 109 | 199 ldx 4,u |
| 106 | 200 lda 1,x |
| 101 | 201 os9 I$Close |
| 202 puls x,y,u | |
| 203 #endasm | |
| 99 | 204 mfree(fcbp); |
| 205 return 0; | |
| 206 } | |
| 207 | |
| 208 _setname(name,fcbp) | |
| 109 | 209 char *name; FILE *fcbp; |
| 210 { | |
| 211 fcbp->fname = name; | |
| 99 | 212 return 1; |
| 213 } | |
| 214 | |
| 215 | |
| 216 getc(fcbp) | |
| 217 char *fcbp; | |
| 218 { | |
| 101 | 219 int c; |
| 220 #asm | |
| 108 | 221 pshs y |
| 222 ldx 4,u | |
| 101 | 223 lda 1,x file descriptor |
| 108 | 224 leax -1,u |
| 225 clr -2,u | |
| 101 | 226 ldy #1 |
| 227 os9 I$Read | |
|
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no compile errors on mc09
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parents:
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228 bcc _LC0005 |
| 101 | 229 ldd #-1 |
| 108 | 230 std -2,u |
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103
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no compile errors on mc09
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parents:
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231 _LC0005 |
| 108 | 232 puls y |
| 101 | 233 #endasm |
| 99 | 234 } |
| 235 | |
| 236 putc(c,fcbp) | |
| 237 char c,*fcbp; | |
| 101 | 238 { |
| 239 int ret; | |
| 240 #asm | |
| 108 | 241 pshs y |
| 242 ldx 6,u | |
| 101 | 243 lda 1,x file descriptor |
| 108 | 244 leax 5,u |
| 101 | 245 ldy #1 |
| 246 os9 I$Write | |
| 108 | 247 puls y |
| 101 | 248 #endasm |
| 249 return c; | |
| 99 | 250 } |
| 251 | |
| 252 getchar() | |
| 253 { return getc(stdin); | |
| 254 } | |
| 255 | |
| 256 putchar(c) | |
| 257 char c; | |
| 258 { return putc(c,stdout); | |
| 259 } | |
| 260 | |
| 261 printf(s) | |
| 262 char *s; | |
| 263 { _fprintf(stdout,s,(int *)&s+1); | |
| 264 } | |
| 265 | |
| 266 fprintf(f,s) | |
| 267 char *f,*s; | |
| 268 { _fprintf(f,s,(int *)&s+1); | |
| 269 } | |
| 270 | |
| 271 _fprintf(f,s,p) | |
| 272 char *f,*s; | |
| 273 int *p; | |
| 274 {int l,m,n; | |
| 275 char c,buf[8]; | |
| 276 while(c = *s++) | |
| 277 if (c != '%') putc(c,f); | |
| 278 else | |
| 279 { if (l=(*s == '-')) ++s; | |
| 280 if (isdigit(*s)) s += _getint(&m,s); | |
| 281 else m = 0; | |
| 282 if (*s == '.') ++s; | |
| 283 if (isdigit(*s)) s += _getint(&n,s); | |
| 284 else n = 32767; | |
| 285 switch(*s++) | |
| 286 {case 'd': | |
| 287 itoa(*p++,buf); | |
| 288 break; | |
| 289 case 'o': | |
| 290 itooa(*p++,buf); | |
| 291 break; | |
| 292 case 'x': | |
| 293 itoxa(*p++,buf); | |
| 294 break; | |
| 295 case 'u': | |
| 296 itoua(*p++,buf); | |
| 297 break; | |
| 298 case 'c': | |
| 299 ctos(*p++,buf); | |
| 300 break; | |
| 301 case 's': | |
| 302 _putstr(f,*p++,l,m,n); | |
| 303 continue; | |
| 304 case '\0': | |
| 305 return; | |
| 306 default: | |
| 307 ctos(c,buf); | |
| 308 break; | |
| 309 } | |
| 310 _putstr(f,buf,l,m,n); | |
| 311 } | |
| 312 } | |
| 313 | |
| 314 _getint(p,s) | |
| 315 int *p; | |
| 316 char *s; | |
| 317 {int i; | |
| 318 for(*p=i=0; isdigit(*s); ++i) *p = *p * 10 + *s++ - '0'; | |
| 319 return i; | |
| 320 } | |
| 321 | |
| 322 _putstr(f,s,l,m,n) | |
| 323 char *f,*s; | |
| 324 int l,m,n; | |
| 325 {int k; | |
| 326 k = (strlen(s) < n ? strlen(s) : n); | |
| 327 m = (k < m ? m-k : 0); | |
| 328 if (l) | |
| 329 { _putsn(f,s,n); | |
| 330 _putspc(f,m); | |
| 331 } | |
| 332 else | |
| 333 { _putspc(f,m); | |
| 334 _putsn(f,s,n); | |
| 335 } | |
| 336 } | |
| 337 | |
| 338 _putsn(f,s,n) | |
| 339 char *f,*s; | |
| 340 int n; | |
| 341 { while(*s) | |
| 342 if (--n >= 0) putc(*s++,f); | |
| 343 else break; | |
| 344 } | |
| 345 | |
| 346 _putspc(f,n) | |
| 347 char *f; | |
| 348 int n; | |
| 349 { while(--n >= 0) putc(' ',f); | |
| 350 } | |
| 351 | |
| 352 puts(s) | |
| 353 char *s; | |
| 354 { while(*s) putchar(*s++); | |
| 355 } | |
| 356 | |
| 357 itoa(n,s) | |
| 358 int n; | |
| 359 char *s; | |
| 360 { if (n < 0) | |
| 361 { *s++ = '-'; | |
| 362 return (itoua(-n,s)+1); | |
| 363 } | |
| 364 return itoua(n,s); | |
| 365 } | |
| 366 | |
| 367 itoua(n,s) | |
| 368 int n; | |
| 369 char *s; | |
| 370 { return _itoda(n,s,10); | |
| 371 } | |
| 372 | |
| 373 itooa(n,s) | |
| 374 int n; | |
| 375 char *s; | |
| 376 { return _itoda(n,s,8); | |
| 377 } | |
| 378 | |
| 379 itoxa(n,s) | |
| 380 int n; | |
| 381 char *s; | |
| 382 { return _itoda(n,s,16); | |
| 383 } | |
| 384 | |
| 385 _itoac(n) | |
| 386 int n; | |
| 387 { return (n + ((n < 10) ? '0' : ('A'-10))); | |
| 388 } | |
| 389 | |
| 390 _itoda(n,s,r) | |
| 391 unsigned n; | |
| 392 int r; | |
| 393 char *s; | |
| 394 {int i; | |
| 395 char t[8],*u; | |
| 396 u = t; | |
| 397 *u++ = '\0'; | |
| 398 do *u++ = _itoac(n % r); while(n /= r); | |
| 399 for (i=0; *s++ = *--u; ++i); | |
| 400 return i; | |
| 401 } | |
| 402 | |
| 403 char *ctos(c,s) | |
| 404 char c,*s; | |
| 405 { s[0] = c; | |
| 406 s[1] = '\0'; | |
| 407 return s; | |
| 408 } | |
| 409 | |
| 410 strlen(s) | |
| 411 char *s; | |
| 412 {int i; | |
| 413 for(i = 0; *s++; ++i); | |
| 414 return i; | |
| 415 } | |
| 416 | |
| 417 isdigit(c) | |
| 418 char c; | |
| 419 { return '0' <= c && c <= '9'; | |
| 420 } | |
| 421 | |
| 422 isspace(c) | |
| 423 char c; | |
| 424 { return (c == ' ' || c == '\t' || c == '\n'); | |
| 425 } | |
| 426 | |
| 427 isalpha(c) | |
| 428 char c; | |
| 429 { return (isupper(c) || islower(c) || c == '_'); | |
| 430 } | |
| 431 | |
| 432 isupper(c) | |
| 433 char c; | |
| 434 { return ('A' <= c && c <= 'Z'); | |
| 435 } | |
| 436 | |
| 437 islower(c) | |
| 438 char c; | |
| 439 { return ('a' <= c && c <= 'z'); | |
| 440 } | |
| 441 | |
| 442 toupper(c) | |
| 443 char c; | |
| 444 { return (islower(c) ? c + ('A'-'a') : c); | |
| 445 } | |
| 446 | |
| 447 tolower(c) | |
| 448 char c; | |
| 449 { return (isupper(c) ? c + ('a'-'A') : c); | |
| 450 } | |
| 451 | |
| 452 atoi(s) | |
| 453 char *s; | |
| 454 {int i; | |
| 455 while (isspace(*s)) ++s; | |
| 456 for (i = 0; isdigit(*s);) i = i * 10 + *s++ - '0'; | |
| 457 return i; | |
| 458 } | |
| 459 | |
| 460 typedef struct header | |
| 461 { struct header *bptr; | |
| 462 unsigned bsize; | |
| 463 } HEADER; | |
| 464 | |
| 465 HEADER base,*allocp,*heapp; | |
| 466 | |
| 467 char *malloc(s) | |
| 468 unsigned s; | |
| 469 {HEADER *p,*q; | |
| 470 int nunits; | |
| 471 nunits = 1 + (s + sizeof(HEADER) - 1) / sizeof(HEADER); | |
| 472 if ((q = allocp) == NULL) | |
| 473 { base.bptr = allocp = q = &base; | |
| 474 base.bsize = 0; | |
| 475 } | |
| 476 for (p = q->bptr; ; q = p,p = p->bptr) | |
| 477 { if (p->bsize >= nunits) | |
| 478 { if (p->bsize == nunits) | |
| 479 q->bptr = p->bptr; | |
| 480 else | |
| 481 { p->bsize -= nunits; | |
| 482 p += p->bsize; | |
| 483 p->bsize = nunits; | |
| 484 } | |
| 485 allocp = q; | |
| 486 clearblock(p); | |
| 487 return ((char *)(p + 1)); | |
| 488 } | |
| 489 if (p == allocp) | |
| 490 if ((p = morecore(nunits)) == NULL) | |
| 491 return(NULL); | |
| 492 } | |
| 493 } | |
| 494 | |
| 495 clearblock(p) | |
| 496 HEADER *p; | |
| 497 {char *s,*t; | |
| 498 s = (char *)(p + 1); | |
| 499 t = (char *)(p + p->bsize); | |
| 500 while (s < t) *s++ = 0; | |
| 501 } | |
| 502 | |
| 503 #define NALLOC 128 | |
| 504 | |
| 505 HEADER *morecore(nu) | |
| 506 unsigned nu; | |
| 507 {char *cp; | |
| 508 HEADER *up; | |
| 509 int rnu; | |
| 510 rnu = NALLOC * ((nu + NALLOC - 1) / NALLOC); | |
| 511 cp = sbrk(rnu * sizeof(HEADER)); | |
| 512 if ((int)cp == -1) return NULL; | |
| 513 up = (HEADER *) cp; | |
| 514 up->bsize = rnu; | |
| 515 mfree((char *)(up+1)); | |
| 516 return allocp; | |
| 517 } | |
| 518 | |
| 519 #asm | |
| 520 sbrk PSHS U | |
| 521 LEAU ,S | |
| 109 | 522 LDD heapp,Y |
| 105 | 523 PSHS D |
| 99 | 524 TFR S,D |
| 525 SUBD ,S++ | |
| 526 CMPD 4,U | |
| 527 BCC _mc1 | |
| 528 LDD #-1 | |
| 529 LEAS ,U | |
| 530 PULS U,PC | |
| 531 | |
| 532 _mc1 LDD 4,U | |
| 533 LDX heapp,Y | |
| 534 LEAX D,X | |
| 535 LDD heapp,Y | |
| 536 STX heapp,Y | |
| 537 LEAS ,U | |
| 538 PULS U,PC | |
| 539 | |
| 540 #endasm | |
| 541 | |
| 542 mfree(ap) | |
| 543 char *ap; | |
| 544 {HEADER *p,*q; | |
| 545 p = (HEADER *)ap - 1; | |
| 546 for (q = allocp; !(p > q && p < q->bptr); q = q->bptr) | |
| 547 if (q >= q->bptr && (p > q || p < q->bptr)) break; | |
| 548 if (p + p->bsize == q->bptr) | |
| 549 { p->bsize += q->bptr->bsize; | |
| 550 p->bptr = q->bptr->bptr; | |
| 551 } | |
| 552 else p->bptr = q->bptr; | |
| 553 if (q + q->bsize == p) | |
| 554 { q->bsize += p->bsize; | |
| 555 q->bptr = p->bptr; | |
| 556 } | |
| 557 else q->bptr = p; | |
| 558 allocp = q; | |
| 559 } | |
| 560 | |
| 561 unsigned freesize() | |
| 562 {int i; | |
| 563 if (!heapp) initheap(); | |
| 564 return ((char *)&i - (char *)heapp); | |
| 565 } |