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   1 /*-------------------------------------------------------------------------
   2
   3   device.c - Accomodates subtle variations in PIC16 devices
   4
   5    Written By -  Scott Dattalo scott@dattalo.com
   6    Ported to PIC16 By -  Martin Dubuc m.dubuc@rogers.com
   7
   8    This program is free software; you can redistribute it and/or modify it
   9    under the terms of the GNU General Public License as published by the
  10    Free Software Foundation; either version 2, or (at your option) any
  11    later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  21 -------------------------------------------------------------------------*/
  22
  23
  24 /*
  25         VR - Began writing code to make PIC16 C source files independent from
  26         the header file (created by the inc2h.pl)
  27
  28         - adding maximum RAM memory into PIC_Device structure
  29
  30 */
  31
  32 #include <stdio.h>
  33
  34 #include "common.h"   // Include everything in the SDCC src directory
  35 #include "newalloc.h"
  36 #include "dbuf_string.h"
  37
  38
  39 #include "main.h"
  40 #include "pcode.h"
  41 #include "ralloc.h"
  42 #include "device.h"
  43
  44 stats_t statistics = { 0, 0, 0, 0 };
  45
  46 #define DEVICE_FILE_NAME    "pic16devices.txt"
  47
  48 static PIC16_device default_device = {
  49     { "p18f452", "18f452", "pic18f452", "f452" },
  50     0x600,
  51     0x80,
  52     { /* configuration words */
  53       0x300001, 0x30000d,
  54       { { 0x27, 0, 0xff } /* 1 */ , { 0x0f, 0, 0xff } /* 2 */ ,
  55         { 0x0f, 0, 0xff } /* 3 */ , {  -1 , 0, 0xff } /* 4 */ ,
  56         { 0x01, 0, 0xff } /* 5 */ , { 0x85, 0, 0xff } /* 6 */ ,
  57         {  -1 , 0, 0xff } /* 7 */ , { 0x0f, 0, 0xff } /* 8 */ ,
  58         { 0xc0, 0, 0xff } /* 9 */ , { 0x0f, 0, 0xff } /* a */ ,
  59         { 0xe0, 0, 0xff } /* b */ , { 0x0f, 0, 0xff } /* c */ ,
  60         { 0x40, 0, 0xff } /* d */ }
  61     },
  62     { /* ID locations */
  63       0x200000, 0x200007,
  64       { { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
  65         { 0, 0 }, { 0, 0 }, { 0, 0 } }
  66     },
  67     NULL
  68 };
  69
  70 PIC16_device *pic16 = &default_device;
  71 static PIC16_device *devices = NULL;
  72
  73 extern set *includeDirsSet;
  74 extern set *userIncDirsSet;
  75
  76 extern char *iComments2;
  77
  78 void pic16_dump_equates(FILE *of, set *equs)
  79 {
  80   regs *r;
  81
  82         r = setFirstItem(equs);
  83         if(!r)return;
  84
  85         fprintf(of, "%s", iComments2);
  86         fprintf(of, ";\tEquates to used internal registers\n");
  87         fprintf(of, "%s", iComments2);
  88
  89         for(; r; r = setNextItem(equs)) {
  90                 fprintf(of, "%s\tequ\t0x%02x\n", r->name, r->address);
  91         }
  92 }
  93
  94
  95 void pic16_dump_access(FILE *of, set *section)
  96 {
  97   regs *r;
  98
  99         r = setFirstItem(section);
 100         if(!r)return;
 101
 102         fprintf(of, "%s", iComments2);
 103         fprintf(of, ";\tAccess bank symbols\n");
 104         fprintf(of, "%s", iComments2);
 105
 106         fprintf(of, "\tudata_acs\n");
 107         for(; r; r = setNextItem(section)) {
 108                 fprintf(of, "%s\tres\t%d\n", r->name, r->size);
 109                 statistics.adsize += r->size;
 110         }
 111 }
 112
 113
 114 int regCompare(const void *a, const void *b)
 115 {
 116   const regs *const *i = a;
 117   const regs *const *j = b;
 118
 119         /* sort primarily by the address */
 120         if( (*i)->address > (*j)->address)return 1;
 121         if( (*i)->address < (*j)->address)return -1;
 122
 123         /* and secondarily by size */
 124         /* register size sorting may have strange results use with care */
 125         if( (*i)->size > (*j)->size)return 1;
 126         if( (*i)->size < (*j)->size)return -1;
 127
 128         /* finally if in same address and same size sort by name */
 129         return (strcmp( (*i)->name, (*j)->name));
 130
 131   return 0;
 132 }
 133
 134 int symCompare(const void *a, const void *b)
 135 {
 136   const symbol *const *i = a;
 137   const symbol *const *j = b;
 138
 139         /* sort primarily by the address */
 140         if( SPEC_ADDR((*i)->etype) > SPEC_ADDR((*j)->etype))return 1;
 141         if( SPEC_ADDR((*i)->etype) < SPEC_ADDR((*j)->etype))return -1;
 142
 143         /* and secondarily by size */
 144         /* register size sorting may have strange results use with care */
 145         if( getSize((*i)->etype) > getSize((*j)->etype))return 1;
 146         if( getSize((*i)->etype) < getSize((*j)->etype))return -1;
 147
 148         /* finally if in same address and same size sort by name */
 149         return (strcmp( (*i)->rname, (*j)->rname));
 150
 151   return 0;
 152 }
 153
 154 void pic16_dump_usection(FILE *of, set *section, int fix)
 155 {
 156   static int abs_usection_no=0;
 157   static unsigned int usection_no=0;
 158   regs *r, *rprev;
 159   unsigned int init_addr, i;
 160   regs **rlist;
 161   regs *r1;
 162
 163         /* put all symbols in an array */
 164         if (!elementsInSet(section)) return;
 165         rlist = Safe_calloc(elementsInSet(section), sizeof(regs *));
 166         r = rlist[0]; i = 0;
 167         for(rprev = setFirstItem(section); rprev; rprev = setNextItem(section)) {
 168                 rlist[i] = rprev; i++;
 169         }
 170
 171         if(!i) {
 172                 if(rlist)Safe_free(rlist);
 173           return;
 174         }
 175
 176         /* sort symbols according to their address */
 177         qsort(rlist, i  /*elementsInSet(section)*/, sizeof(regs *), regCompare);
 178
 179         if(!fix) {
 180
 181 #define EMIT_SINGLE_UDATA_SECTION       0
 182 #if EMIT_SINGLE_UDATA_SECTION
 183                 fprintf(of, "\n\n\tudata\n");
 184                 for(r = setFirstItem(section); r; r = setNextItem(section)) {
 185                         fprintf(of, "%s\tres\t%d\n", r->name, r->size);
 186                         statistics.udsize += r->size;
 187                 }
 188 #else
 189                 for(r = setFirstItem(section); r; r = setNextItem(section)) {
 190                         //fprintf(of, "\nudata_%s_%s\tudata\n", moduleName, r->name);
 191                         fprintf(of, "\nudata_%s_%u\tudata\n", moduleName, usection_no++);
 192                         fprintf(of, "%s\tres\t%d\n", r->name, r->size);
 193                         statistics.udsize += r->size;
 194                 }
 195 #endif
 196         } else {
 197           unsigned int j=0;
 198
 199                 rprev = NULL;
 200                 init_addr = (rlist[j]->address & 0x0FFF); // warning(s) emitted below
 201                 fprintf(of, "\n\nustat_%s_%02d\tudata\t0X%04X\n", moduleName, abs_usection_no++, (init_addr & 0x0FFF));
 202
 203                 for(j=0;j<i;j++) {
 204                         r = rlist[j];
 205                         if(j < i-1)r1 = rlist[j+1]; else r1 = NULL;
 206
 207                         init_addr = (r->address & 0x0FFF);
 208                         if (init_addr != r->address) {
 209                             fprintf (stderr, "%s: WARNING: Changed address of pinned variable %s from 0x%x to 0x%x\n",
 210                                     moduleName, r->name, r->address, init_addr);
 211                         } // if
 212
 213                         if((rprev && (init_addr != ((rprev->address & 0x0FFF) + rprev->size)))) {
 214                                 fprintf(of, "\n\nustat_%s_%02d\tudata\t0X%04X\n", moduleName, abs_usection_no++, init_addr);
 215                         }
 216
 217                         /* XXX: Does not handle partial overlap correctly. */
 218                         if(r1 && (init_addr == (r1->address & 0x0FFF))) {
 219                                 fprintf(of, "\n%s\tres\t0\n", r->name);
 220                         } else {
 221                                 fprintf(of, "%s\tres\t%d\n", r->name, r->size);
 222                                 statistics.udsize += r->size;
 223                         }
 224
 225                         rprev = r;
 226                 }
 227         }
 228         Safe_free(rlist);
 229 }
 230
 231 void pic16_dump_gsection(FILE *of, set *sections)
 232 {
 233   regs *r;
 234   sectName *sname;
 235
 236         for(sname = setFirstItem(sections); sname; sname = setNextItem(sections)) {
 237                 if(!strcmp(sname->name, "access"))continue;
 238                 fprintf(of, "\n\n%s\tudata\n", sname->name);
 239
 240                 for(r=setFirstItem(sname->regsSet); r; r=setNextItem(sname->regsSet)) {
 241 #if 0
 242                         fprintf(stderr, "%s:%d emitting variable %s for section %s (%p)\n", __FILE__, __LINE__,
 243                                 r->name, sname->name, sname);
 244 #endif
 245                         fprintf(of, "%s\tres\t%d\n", r->name, r->size);
 246                         statistics.udsize += r->size;
 247                 }
 248         }
 249 }
 250
 251
 252 /* forward declaration */
 253 void pic16_printIval(symbol * sym, sym_link * type, initList * ilist, char ptype, void *p);
 254 extern void pic16_pCodeConstString(char *name, char *value, unsigned length);
 255
 256 void pic16_dump_isection(FILE *of, set *section, int fix)
 257 {
 258   static int abs_isection_no=0;
 259   symbol *s, *sprev;
 260   unsigned int init_addr, i;
 261   symbol **slist;
 262
 263         /* put all symbols in an array */
 264         if (!elementsInSet(section)) return;
 265         slist = Safe_calloc(elementsInSet(section), sizeof(symbol *));
 266         s = slist[0]; i = 0;
 267         for(sprev = setFirstItem(section); sprev; sprev = setNextItem(section)) {
 268                 slist[i] = sprev; i++;
 269         }
 270
 271         if(!i) {
 272                 if(slist)Safe_free(slist);
 273           return;
 274         }
 275
 276         /* sort symbols according to their address */
 277         qsort(slist, i, sizeof(symbol *), symCompare);
 278
 279         pic16_initDB();
 280
 281         if(!fix) {
 282                 fprintf(of, "\n\n\tidata\n");
 283                 for(s = setFirstItem(section); s; s = setNextItem(section)) {
 284
 285                         if(s->ival) {
 286                                 fprintf(of, "%s", s->rname);
 287                                 pic16_printIval(s, s->type, s->ival, 'f', (void *)of);
 288                                 pic16_flushDB('f', (void *)of);
 289                         } else {
 290                                 if (IS_ARRAY (s->type) && IS_CHAR (s->type->next)
 291                                         && SPEC_CVAL (s->etype).v_char) {
 292
 293 //                                      fprintf(stderr, "%s:%d printing code string from %s\n", __FILE__, __LINE__, s->rname);
 294                                         pic16_pCodeConstString(s->rname , SPEC_CVAL (s->etype).v_char, getSize(s->type));
 295                                 } else {
 296                                         assert(0);
 297                                 }
 298                         }
 299
 300                 }
 301         } else {
 302           unsigned int j=0;
 303           symbol *s1;
 304
 305                 sprev = NULL;
 306                 init_addr = SPEC_ADDR(slist[j]->etype);
 307                 fprintf(of, "\n\nistat_%s_%02d\tidata\t0X%04X\n", moduleName, abs_isection_no++, init_addr);
 308
 309                 for(j=0;j<i;j++) {
 310                         s = slist[j];
 311                         if(j < i-1)s1 = slist[j+1]; else s1 = NULL;
 312
 313                         init_addr = SPEC_ADDR(s->etype);
 314
 315                         if(sprev && (init_addr > (SPEC_ADDR(sprev->etype) + getSize(sprev->etype)))) {
 316                                 fprintf(of, "\nistat_%s_%02d\tidata\t0X%04X\n", moduleName, abs_isection_no++, init_addr);
 317                         }
 318
 319                         if(s->ival) {
 320                                 fprintf(of, "%s", s->rname);
 321                                 pic16_printIval(s, s->type, s->ival, 'f', (void *)of);
 322                                 pic16_flushDB('f', (void *)of);
 323                         } else {
 324                                 if (IS_ARRAY (s->type) && IS_CHAR (s->type->next)
 325                                         && SPEC_CVAL (s->etype).v_char) {
 326
 327 //                                      fprintf(stderr, "%s:%d printing code string from %s\n", __FILE__, __LINE__, s->rname);
 328                                         pic16_pCodeConstString(s->rname , SPEC_CVAL (s->etype).v_char, getSize(s->type));
 329                                 } else {
 330                                         assert(0);
 331                                 }
 332                         }
 333
 334
 335                         sprev = s;
 336                 }
 337         }
 338         Safe_free(slist);
 339 }
 340
 341
 342 void pic16_dump_int_registers(FILE *of, set *section)
 343 {
 344   regs *r, *rprev;
 345   int i;
 346   regs **rlist;
 347
 348         /* put all symbols in an array */
 349         if (!elementsInSet(section)) return;
 350         rlist = Safe_calloc(elementsInSet(section), sizeof(regs *));
 351         r = rlist[0]; i = 0;
 352         for(rprev = setFirstItem(section); rprev; rprev = setNextItem(section)) {
 353                 rlist[i] = rprev; i++;
 354         }
 355
 356         /* sort symbols according to their address */
 357         qsort(rlist, elementsInSet(section), sizeof(regs *), regCompare);
 358
 359         if(!i) {
 360                 if(rlist)Safe_free(rlist);
 361           return;
 362         }
 363
 364         fprintf(of, "\n\n; Internal registers\n");
 365
 366         fprintf(of, "%s\tudata_ovr\t0x0000\n", ".registers");
 367         for(r = setFirstItem(section); r; r = setNextItem(section)) {
 368                 fprintf(of, "%s\tres\t%d\n", r->name, r->size);
 369                 statistics.intsize += r->size;
 370         }
 371
 372         Safe_free(rlist);
 373 }
 374
 375 /**
 376  * Find the device structure for the named device.
 377  * Consider usind pic16_find_device() instead!
 378  *
 379  * @param   name
 380  *      a name for the desired device
 381  * @param   head
 382  *      a pointer to the head of the list of devices
 383  * @return
 384  *      a pointer to the structure for the desired
 385  *      device, or NULL
 386  */
 387 static PIC16_device *
 388 find_in_list(const char *name, PIC16_device *head)
 389 {
 390     int i;
 391
 392     while (head) {
 393         for (i = 0; i < 4; i++) {
 394             if (0 == strcmp(head->name[i], name)) {
 395                 return (head);
 396             } // if
 397         } // for
 398
 399         head = head->next;
 400     } // while
 401
 402     return (NULL);
 403 }
 404
 405 /**
 406  * Print a list of supported devices.
 407  * If --verbose was given, also emit key characteristics (memory size,
 408  * access bank split point, address range of SFRs and config words).
 409  *
 410  * @param   head
 411  *      a pointer to the head of the list of devices
 412  */
 413 static void
 414 pic16_list_devices(PIC16_device *head)
 415 {
 416     int i = 0;
 417
 418     if (options.verbose) {
 419         printf("device        RAM  split       config words\n");
 420     } // if
 421     while (head) {
 422         printf("%-10s  ", head->name[0]);
 423         if (options.verbose) {
 424             printf("%5d   0x%02x    0x%06x..0x%06x\n",
 425                     head->RAMsize,
 426                     head->acsSplitOfs,
 427                     head->cwInfo.confAddrStart,
 428                     head->cwInfo.confAddrEnd);
 429         } else {
 430             i++;
 431             if (0 == (i % 6)) {
 432                 printf("\n");
 433             } // if
 434         } // if
 435         head = head->next;
 436     } // while
 437     printf("\n");
 438 }
 439
 440 /**
 441  * Read a single line from the given file.
 442  *
 443  * @param   file
 444  *      a pointer to the open file to read
 445  * @return
 446  *      a pointer to a malloc'ed copy of the (next) line, or NULL
 447  */
 448 static char *
 449 get_line (FILE *file)
 450 {
 451   static struct dbuf_s dbuf;
 452   static int initialized = 0;
 453
 454   if (!initialized)
 455     {
 456       dbuf_init (&dbuf, 129);
 457       initialized = 1;
 458     }
 459   else
 460     dbuf_set_length (&dbuf, 0);
 461
 462
 463   if (dbuf_getline (&dbuf, file) != 0)
 464     {
 465       dbuf_chomp (&dbuf);
 466       /* (char *) type cast is an ugly hack since pic16_find_device() modifies the buffer */
 467       return (char *)dbuf_get_buf (&dbuf);
 468     }
 469   else
 470     {
 471       dbuf_destroy(&dbuf);
 472       initialized = 0;
 473       return NULL;
 474     }
 475 }
 476
 477 /**
 478  * Truncate the given string in place (!) at the first '#' character (if any).
 479  *
 480  * @param   line
 481  *      a pointer to the string to truncate
 482  * @return
 483  *      a pointer to the truncated string (i.e., line)
 484  */
 485 static char *
 486 strip_comment (char *line)
 487 {
 488     char *l = line;
 489     char c;
 490
 491     if (!line) {
 492         return (line);
 493     } // if
 494
 495     while (0 != (c = *l)) {
 496         if ('#' == c) {
 497             *l = 0;
 498             return (line);
 499         } // if
 500         l++;
 501     } // while
 502
 503     return (line);
 504 }
 505
 506 /**
 507  * Report errors in the device specification.
 508  *
 509  * @param   msg
 510  *      a pointer to the detailed message
 511  */
 512 #define SYNTAX(msg) do {                                \
 513     fprintf(stderr, "%s:%d: Syntax error: %s\n",        \
 514             DEVICE_FILE_NAME, lineno, msg);             \
 515 } while (0)
 516
 517 /**
 518  * Locate and read in the device specification (if required) and
 519  * return the device structure for the named device.
 520  *
 521  * @param   name
 522  *      a pointer to the name of the desired device
 523  * @return
 524  *      a pointer to the device structure, or NULL
 525  */
 526 static PIC16_device *
 527 pic16_find_device(const char *name)
 528 {
 529     const char *path;
 530     char buffer[PATH_MAX];
 531     char *line, *key;
 532     const char *sep = " \t\n\r";
 533     FILE *f = NULL;
 534     PIC16_device *d = NULL, *template;
 535     PIC16_device *head = NULL, *tail = NULL;
 536     set *_sets[] = { userIncDirsSet, includeDirsSet };
 537     set **sets = &_sets[0];
 538     int lineno = 0;
 539     int res, i;
 540     int val[3];
 541
 542     if (!devices) {
 543         //printf("%s: searching %s\n", __func__, DEVICE_FILE_NAME);
 544
 545         // locate the specification file in the include search paths
 546         for (i = 0; (NULL == f) && (i < 2); i++) {
 547             for (path = setFirstItem(sets[i]);
 548                     (NULL == f) && path;
 549                     path = setNextItem(sets[i]))
 550             {
 551                 SNPRINTF(&buffer[0], PATH_MAX, "%s%s%s",
 552                         path, DIR_SEPARATOR_STRING, DEVICE_FILE_NAME);
 553                 //printf("%s: checking %s\n", __func__, &buffer[0]);
 554                 f = fopen(&buffer[0], "r");
 555             } // for
 556         } // while
 557     } // if
 558
 559     if (devices) {
 560         // list already set up, nothing to do
 561     } else if (NULL == f) {
 562         fprintf(stderr, "ERROR: device list %s not found, specify its path via -I<path>\n", DEVICE_FILE_NAME);
 563         d = &default_device;
 564     } else {
 565         // parse the specification file and construct a linked list of
 566         // supported devices
 567         d = NULL;
 568         while (NULL != (line = get_line(f))) {
 569             strip_comment(line);
 570             //printf("%s: read %s\n", __func__, line);
 571             lineno++;
 572             key = strtok(line, sep);
 573             if (!key) {
 574                 // empty line---ignore
 575             } else if (0 == strcmp(key, "name")) {
 576                 // name %<name>s
 577                 if (d) {
 578                     if (tail) {
 579                         tail->next = d;
 580                     } else {
 581                         head = d;
 582                     } // if
 583                     tail = d;
 584                     d = NULL;
 585                 } // if
 586
 587                 res = sscanf(&line[1+strlen(key)], " %16s", &buffer[3]);
 588                 if ((1 < res) || (3 > strlen(&buffer[3]))) {
 589                     SYNTAX("<name> (e.g., 18f452) expected.");
 590                 } else {
 591                     d = Safe_calloc(1, sizeof(PIC16_device));
 592
 593                     // { "p18f452", "18f452", "pic18f452", "f452" }
 594                     buffer[0] = 'p';
 595                     buffer[1] = 'i';
 596                     buffer[2] = 'c';
 597                     d->name[3] = Safe_strdup(&buffer[5]);
 598                     d->name[2] = Safe_strdup(&buffer[0]);
 599                     d->name[1] = Safe_strdup(&buffer[3]);
 600                     buffer[2] = 'p';
 601                     d->name[0] = Safe_strdup(&buffer[2]);
 602                 } // if
 603             } else if (0 == strcmp(key, "using")) {
 604                 // using %<name>s
 605                 res = sscanf(&line[1+strlen(key)], " %16s", &buffer[0]);
 606                 if ((1 < res) || (3 > strlen(&buffer[3]))) {
 607                     SYNTAX("<name> (e.g., 18f452) expected.");
 608                 } else {
 609                     template = find_in_list(&buffer[0], head);
 610                     if (!template) {
 611                         SYNTAX("<name> (e.g., 18f452) expected.");
 612                     } else {
 613                         memcpy(&d->RAMsize, &template->RAMsize,
 614                                 ((char *)&d->next) - ((char *)&d->RAMsize));
 615                     } // if
 616                 } // if
 617             } else if (0 == strcmp(key, "ramsize")) {
 618                 // ramsize %<bytes>i
 619                 res = sscanf(&line[1+strlen(key)], " %i", &val[0]);
 620                 if (res < 1) {
 621                     SYNTAX("<bytes> (e.g., 256) expected.");
 622                 } else {
 623                     d->RAMsize = val[0];
 624                 } // if
 625             } else if (0 == strcmp(key, "split")) {
 626                 // split %<offset>i
 627                 res = sscanf(&line[1+strlen(key)], " %i", &val[0]);
 628                 if (res < 1) {
 629                     SYNTAX("<offset> (e.g., 0x80) expected.");
 630                 } else {
 631                     d->acsSplitOfs = val[0];
 632                 } // if
 633             } else if (0 == strcmp(key, "configrange")) {
 634                 // configrange %<first>i %<last>i
 635                 res = sscanf(&line[1+strlen(key)], " %i %i",
 636                         &val[0], &val[1]);
 637                 if (res < 2) {
 638                     SYNTAX("<first> <last> (e.g., 0xf60 0xfff) expected.");
 639                 } else {
 640                     d->cwInfo.confAddrStart = val[0];
 641                     d->cwInfo.confAddrEnd = val[1];
 642                 } // if
 643             } else if (0 == strcmp(key, "configword")) {
 644                 // configword %<address>i %<mask>i %<value>i
 645                 res = sscanf(&line[1+strlen(key)], " %i %i %i",
 646                         &val[0], &val[1], &val[2]);
 647                 if (res < 3) {
 648                     SYNTAX("<address> <mask> <value> (e.g., 0x200001 0x0f 0x07) expected.");
 649                 } else {
 650                     val[0] -= d->cwInfo.confAddrStart;
 651                     if ((val[0] < 0)
 652                             || (val[0] > (d->cwInfo.confAddrEnd - d->cwInfo.confAddrStart))
 653                             || (val[0] >= CONFIGURATION_WORDS))
 654                     {
 655                         SYNTAX("address out of bounds.");
 656                     } else {
 657                         d->cwInfo.crInfo[val[0]].mask = val[1];
 658                         d->cwInfo.crInfo[val[0]].value = val[2];
 659                     } // if
 660                 } // if
 661             } else if (0 == strcmp(key, "idlocrange")) {
 662                 // idlocrange %<first>i %<last>i
 663                 res = sscanf(&line[1+strlen(key)], " %i %i",
 664                         &val[0], &val[1]);
 665                 if (res < 2) {
 666                     SYNTAX("<first> <last> (e.g., 0xf60 0xfff) expected.");
 667                 } else {
 668                     d->idInfo.idAddrStart = val[0];
 669                     d->idInfo.idAddrEnd = val[1];
 670                 } // if
 671             } else if (0 == strcmp(key, "idword")) {
 672                 // idword %<address>i %<value>i
 673                 res = sscanf(&line[1+strlen(key)], " %i %i",
 674                         &val[0], &val[1]);
 675                 if (res < 2) {
 676                     SYNTAX("<address> <value> (e.g., 0x3fffff 0x00) expected.");
 677                 } else {
 678                     val[0] -= d->idInfo.idAddrStart;
 679                     if ((val[0] < 0)
 680                             || (val[0] > (d->idInfo.idAddrEnd - d->idInfo.idAddrStart))
 681                             || (val[0] >= IDLOCATION_BYTES))
 682                     {
 683                         SYNTAX("address out of bounds.");
 684                     } else {
 685                         d->idInfo.irInfo[val[0]].value = val[1];
 686                     } // if
 687                 } // if
 688             } else {
 689                 printf("%s: Invalid keyword in %s ignored: %s\n",
 690                   __func__, DEVICE_FILE_NAME, key);
 691             } // if
 692         } // while
 693
 694         if (d) {
 695             if (tail) {
 696                 tail->next = d;
 697             } else {
 698                 head = d;
 699             } // if
 700             tail = d;
 701             d = NULL;
 702         } // if
 703
 704         devices = head;
 705
 706         fclose(f);
 707     } // if
 708
 709     d = find_in_list(name, devices);
 710     if (!d) {
 711         d = &default_device;
 712     } // if
 713
 714     return (d);
 715 }
 716
 717 /*-----------------------------------------------------------------*
 718  *
 719  *-----------------------------------------------------------------*/
 720 void pic16_init_pic(const char *pic_type)
 721 {
 722     pic16 = pic16_find_device(pic_type);
 723
 724     if (&default_device == pic16) {
 725         if (pic_type) {
 726             fprintf(stderr, "'%s' was not found.\n", pic_type);
 727         } else {
 728             fprintf(stderr, "No processor has been specified (use -pPROCESSOR_NAME)\n");
 729         } // if
 730
 731         if (devices) {
 732             fprintf(stderr,"Valid devices are (use --verbose for more details):\n");
 733             pic16_list_devices(devices);
 734         } // if
 735         exit(EXIT_FAILURE);
 736     } // if
 737 }
 738
 739 /*-----------------------------------------------------------------*
 740  *  char *pic16_processor_base_name(void) - Include file is derived from this.
 741  *-----------------------------------------------------------------*/
 742 char *pic16_processor_base_name(void)
 743 {
 744
 745   if(!pic16)
 746     return NULL;
 747
 748   return pic16->name[0];
 749 }
 750
 751 #define DEBUG_CHECK     0
 752
 753 /*
 754  * return 1 if register wasn't found and added, 0 otherwise
 755  */
 756 int checkAddReg(set **set, regs *reg)
 757 {
 758   regs *tmp;
 759
 760
 761         if(!reg)return 0;
 762 #if DEBUG_CHECK
 763         fprintf(stderr, "%s: about to insert REGister: %s ... ", __FUNCTION__, reg->name);
 764 #endif
 765
 766         for(tmp = setFirstItem(*set); tmp; tmp = setNextItem(*set)) {
 767                 if(!strcmp(tmp->name, reg->name))break;
 768         }
 769
 770         if(!tmp) {
 771                 addSet(set, reg);
 772 #if DEBUG_CHECK
 773                 fprintf(stderr, "added\n");
 774 #endif
 775                 return 1;
 776         }
 777
 778 #if DEBUG_CHECK
 779         fprintf(stderr, "already added\n");
 780 #endif
 781   return 0;
 782 }
 783
 784 int checkAddSym(set **set, symbol *sym)
 785 {
 786   symbol *tmp;
 787
 788         if(!sym)return 0;
 789 #if DEBUG_CHECK
 790         fprintf(stderr, "%s: about to add SYMbol: %s ... ", __FUNCTION__, sym->name);
 791 #endif
 792
 793         for(tmp = setFirstItem( *set ); tmp; tmp = setNextItem(*set)) {
 794                 if(!strcmp(tmp->name, sym->name))break;
 795         }
 796
 797         if(!tmp) {
 798                 addSet(set, sym);
 799 #if DEBUG_CHECK
 800                 fprintf(stderr, "added\n");
 801 #endif
 802                 return 1;
 803         }
 804
 805 #if DEBUG_CHECK
 806         fprintf(stderr, "already added\n");
 807 #endif
 808
 809   return 0;
 810 }
 811
 812 int checkSym(set *set, symbol *sym)
 813 {
 814   symbol *tmp;
 815
 816         if(!sym)return 0;
 817
 818 #if DEUG_CHECK
 819         fprintf(stderr, "%s: about to search for SYMbol: %s ... ", __FUNCTION__, sym->name);
 820 #endif
 821
 822         for(tmp = setFirstItem( set ); tmp; tmp = setNextItem( set )) {
 823                 if(!strcmp(tmp->name, sym->name))break;
 824         }
 825
 826         if(!tmp) {
 827 #if DEBUG_CHECK
 828                 fprintf(stderr, "not found\n");
 829 #endif
 830                 return 0;
 831         }
 832
 833 #if DEBUG_CHECK
 834         fprintf(stderr, "found\n");
 835 #endif
 836
 837   return 1;
 838 }
 839
 840 /*-----------------------------------------------------------------*
 841  * void pic16_groupRegistersInSection - add each register to its   *
 842  *      corresponding section                                      *
 843  *-----------------------------------------------------------------*/
 844 void pic16_groupRegistersInSection(set *regset)
 845 {
 846   regs *reg;
 847   sectSym *ssym;
 848   int docontinue=0;
 849
 850         for(reg=setFirstItem(regset); reg; reg = setNextItem(regset)) {
 851
 852 #if 0
 853                 fprintf(stderr, "%s:%d group registers in section, reg: %s (used: %d, %p)\n",
 854                         __FILE__, __LINE__, reg->name, reg->wasUsed, reg);
 855 #endif
 856                 if((reg->wasUsed
 857                         && !(reg->regop && SPEC_EXTR(OP_SYM_ETYPE(reg->regop))))
 858                   ) {
 859
 860                         /* avoid grouping registers that have an initial value,
 861                          * they will be added later in idataSymSet */
 862                         if(reg->regop && (OP_SYMBOL(reg->regop)->ival && !OP_SYMBOL(reg->regop)->level))
 863                                 continue;
 864
 865 #if 0
 866                         fprintf(stderr, "%s:%d register %s alias:%d fix:%d ival=%i level=%i code=%i\n",
 867                                 __FILE__, __LINE__, reg->name, reg->alias, reg->isFixed,
 868                                         (reg->regop?(OP_SYMBOL(reg->regop)->ival?1:0):-1),
 869                                         (reg->regop?(OP_SYMBOL(reg->regop)->level):-1),
 870                                         (reg->regop?(IS_CODE(OP_SYM_ETYPE(reg->regop))):-1) );
 871 #endif
 872
 873                         docontinue=0;
 874                         for(ssym=setFirstItem(sectSyms);ssym;ssym=setNextItem(sectSyms)) {
 875                                 if(!strcmp(ssym->name, reg->name)) {
 876 //                                      fprintf(stderr, "%s:%d section found %s (%p) with var %s\n",
 877 //                                                      __FILE__, __LINE__, ssym->section->name, ssym->section, ssym->name);
 878                                         if(strcmp(ssym->section->name, "access")) {
 879                                                 addSet(&ssym->section->regsSet, reg);
 880                                                 docontinue=1;
 881                                                 break;
 882                                         } else {
 883                                                 docontinue=0;
 884                                                 reg->accessBank = 1;
 885                                                 break;
 886                                         }
 887                                 }
 888                         }
 889
 890                         if(docontinue)continue;
 891
 892 //                      fprintf(stderr, "%s:%d reg: %s\n", __FILE__, __LINE__, reg->name);
 893
 894                         if(reg->alias == 0x80) {
 895                                 checkAddReg(&pic16_equ_data, reg);
 896                         } else
 897                         if(reg->isFixed) {
 898                                 checkAddReg(&pic16_fix_udata, reg);
 899                         } else
 900                         if(!reg->isFixed) {
 901                                 if(reg->pc_type == PO_GPR_TEMP)
 902                                         checkAddReg(&pic16_int_regs, reg);
 903                                 else {
 904                                         if(reg->accessBank) {
 905                                                 if(reg->alias != 0x40)
 906                                                         checkAddReg(&pic16_acs_udata, reg);
 907                                         } else
 908                                                 checkAddReg(&pic16_rel_udata, reg);
 909                                 }
 910                         }
 911                 }
 912         }
 913 }
 914
 915
 916
 917
 918
 919 /*-----------------------------------------------------------------*
 920  *  void pic16_assignConfigWordValue(int address, int value)
 921  *
 922  * All high performance RISC CPU PICs have seven config word starting
 923  * at address 0x300000.
 924  * This routine will assign a value to that address.
 925  *
 926  *-----------------------------------------------------------------*/
 927 void pic16_assignConfigWordValue(int address, unsigned int value)
 928 {
 929   int i;
 930
 931         for(i=0;i<pic16->cwInfo.confAddrEnd-pic16->cwInfo.confAddrStart+1;i++) {
 932                 if((address == pic16->cwInfo.confAddrStart+i)
 933                   && (pic16->cwInfo.crInfo[i].mask != -1)
 934                   && (pic16->cwInfo.crInfo[i].mask != 0)) {
 935
 936 #if 0
 937                         fprintf(stderr, "setting location 0x%X to value 0x%x\tmask: 0x%x\ttest: 0x%x\n",
 938                                 /*address*/ pic16->cwInfo.confAddrStart+i, (~value)&0xff,
 939                                         pic16->cwInfo.crInfo[i].mask,
 940                                         (pic16->cwInfo.crInfo[i].mask) & (~value));
 941 #endif
 942
 943 #if 0
 944                         if((((pic16->cwInfo.crInfo[i].mask) & (~value))&0xff) != ((~value)&0xff)) {
 945                                 fprintf(stderr, "%s:%d a wrong value has been given for configuration register 0x%x\n",
 946                                         __FILE__, __LINE__, address);
 947                                         return;
 948                         }
 949 #endif
 950
 951                         pic16->cwInfo.crInfo[i].value = value;
 952                         pic16->cwInfo.crInfo[i].emit = 1;
 953                         return;
 954                 }
 955         }
 956 }
 957
 958 void pic16_assignIdByteValue(int address, char value)
 959 {
 960   int i;
 961
 962         for(i=0;i<pic16->idInfo.idAddrEnd-pic16->idInfo.idAddrStart+1;i++) {
 963                 if(address == pic16->idInfo.idAddrStart+i) {
 964                         pic16->idInfo.irInfo[i].value = value;
 965                         pic16->idInfo.irInfo[i].emit = 1;
 966                 }
 967         }
 968 }