1 /*-------------------------------------------------------------------------
3 device.c - Accomodates subtle variations in PIC16 devices
5 Written By - Scott Dattalo scott@dattalo.com
6 Ported to PIC16 By - Martin Dubuc m.dubuc@rogers.com
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
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.
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 -------------------------------------------------------------------------*/
25 VR - Began writing code to make PIC16 C source files independent from
26 the header file (created by the inc2h.pl)
28 - adding maximum RAM memory into PIC_Device structure
34 #include "common.h" // Include everything in the SDCC src directory
44 static PIC16_device Pics16[] = {
45 /* Device descriptions are now generated by scripts.
46 * For simplicities sake we just include them here.
47 * Manual overrides may be inserted on top of devices.inc
48 * or right here BEFORE inclusion of devices.inc. */
49 #include "devices.inc"
52 static int num_of_supported_PICS = sizeof(Pics16)/sizeof(PIC16_device);
54 stats_t statistics = { 0, 0, 0, 0 };
56 #define DEFAULT_PIC "452"
58 PIC16_device *pic16=NULL;
59 unsigned int stackPos = 0;
60 unsigned int stackLen = 0;
62 extern regs* newReg(short type, short pc_type, int rIdx, char *name, int size, int alias, operand *refop);
64 void pic16_setMaxRAM(int size)
66 pic16->maxRAMaddress = size;
67 stackPos = pic16->RAMsize-1;
69 if (pic16->maxRAMaddress < 0) {
70 fprintf(stderr, "invalid \"#pragma maxram 0x%x\" setting\n",
71 pic16->maxRAMaddress);
76 extern char *iComments2;
78 void pic16_dump_equates(FILE *of, set *equs)
82 r = setFirstItem(equs);
85 fprintf(of, "%s", iComments2);
86 fprintf(of, ";\tEquates to used internal registers\n");
87 fprintf(of, "%s", iComments2);
89 for(; r; r = setNextItem(equs)) {
90 fprintf(of, "%s\tequ\t0x%02x\n", r->name, r->address);
95 void pic16_dump_access(FILE *of, set *section)
99 r = setFirstItem(section);
102 fprintf(of, "%s", iComments2);
103 fprintf(of, ";\tAccess bank symbols\n");
104 fprintf(of, "%s", iComments2);
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;
114 int regCompare(const void *a, const void *b)
116 const regs *const *i = a;
117 const regs *const *j = b;
119 /* sort primarily by the address */
120 if( (*i)->address > (*j)->address)return 1;
121 if( (*i)->address < (*j)->address)return -1;
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;
128 /* finally if in same address and same size sort by name */
129 return (strcmp( (*i)->name, (*j)->name));
134 int symCompare(const void *a, const void *b)
136 const symbol *const *i = a;
137 const symbol *const *j = b;
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;
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;
148 /* finally if in same address and same size sort by name */
149 return (strcmp( (*i)->rname, (*j)->rname));
154 void pic16_dump_usection(FILE *of, set *section, int fix)
156 static int abs_usection_no=0;
157 static unsigned int usection_no=0;
159 unsigned int init_addr, i;
163 /* put all symbols in an array */
164 if (!elementsInSet(section)) return;
165 rlist = Safe_calloc(elementsInSet(section), sizeof(regs *));
167 for(rprev = setFirstItem(section); rprev; rprev = setNextItem(section)) {
168 rlist[i] = rprev; i++;
172 if(rlist)Safe_free(rlist);
176 /* sort symbols according to their address */
177 qsort(rlist, i /*elementsInSet(section)*/, sizeof(regs *), regCompare);
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;
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;
201 init_addr = rlist[j]->address;
202 deb_addr = init_addr;
203 fprintf(of, "\n\nustat_%s_%02d\tudata\t0X%04X\n", moduleName, abs_usection_no++, init_addr);
207 if(j < i-1)r1 = rlist[j+1]; else r1 = NULL;
209 init_addr = r->address;
210 deb_addr = init_addr;
212 if((rprev && (init_addr > (rprev->address + rprev->size)))) {
213 fprintf(of, "\n\nustat_%s_%02d\tudata\t0X%04X\n", moduleName, abs_usection_no++, init_addr);
216 if(r1 && (init_addr == r1->address)) {
217 fprintf(of, "\n%s\tres\t0\n", r->name);
219 fprintf(of, "%s\tres\t%d\n", r->name, r->size);
221 statistics.udsize += r->size;
230 void pic16_dump_gsection(FILE *of, set *sections)
235 for(sname = setFirstItem(sections); sname; sname = setNextItem(sections)) {
236 if(!strcmp(sname->name, "access"))continue;
237 fprintf(of, "\n\n%s\tudata\n", sname->name);
239 for(r=setFirstItem(sname->regsSet); r; r=setNextItem(sname->regsSet)) {
241 fprintf(stderr, "%s:%d emitting variable %s for section %s (%p)\n", __FILE__, __LINE__,
242 r->name, sname->name, sname);
244 fprintf(of, "%s\tres\t%d\n", r->name, r->size);
245 statistics.udsize += r->size;
251 /* forward declaration */
252 void pic16_printIval(symbol * sym, sym_link * type, initList * ilist, char ptype, void *p);
253 extern void pic16_pCodeConstString(char *name, char *value);
255 void pic16_dump_isection(FILE *of, set *section, int fix)
257 static int abs_isection_no=0;
259 unsigned int init_addr, i;
262 /* put all symbols in an array */
263 if (!elementsInSet(section)) return;
264 slist = Safe_calloc(elementsInSet(section), sizeof(symbol *));
266 for(sprev = setFirstItem(section); sprev; sprev = setNextItem(section)) {
267 slist[i] = sprev; i++;
271 if(slist)Safe_free(slist);
275 /* sort symbols according to their address */
276 qsort(slist, i, sizeof(symbol *), symCompare);
281 fprintf(of, "\n\n\tidata\n");
282 for(s = setFirstItem(section); s; s = setNextItem(section)) {
285 fprintf(of, "%s", s->rname);
286 pic16_printIval(s, s->type, s->ival, 'f', (void *)of);
287 pic16_flushDB('f', (void *)of);
289 if (IS_ARRAY (s->type) && IS_CHAR (s->type->next)
290 && SPEC_CVAL (s->etype).v_char) {
292 // fprintf(stderr, "%s:%d printing code string from %s\n", __FILE__, __LINE__, s->rname);
293 pic16_pCodeConstString(s->rname , SPEC_CVAL (s->etype).v_char);
305 init_addr = SPEC_ADDR(slist[j]->etype);
306 fprintf(of, "\n\nistat_%s_%02d\tidata\t0X%04X\n", moduleName, abs_isection_no++, init_addr);
310 if(j < i-1)s1 = slist[j+1]; else s1 = NULL;
312 init_addr = SPEC_ADDR(s->etype);
314 if(sprev && (init_addr > (SPEC_ADDR(sprev->etype) + getSize(sprev->etype)))) {
315 fprintf(of, "\nistat_%s_%02d\tidata\t0X%04X\n", moduleName, abs_isection_no++, init_addr);
319 fprintf(of, "%s", s->rname);
320 pic16_printIval(s, s->type, s->ival, 'f', (void *)of);
321 pic16_flushDB('f', (void *)of);
323 if (IS_ARRAY (s->type) && IS_CHAR (s->type->next)
324 && SPEC_CVAL (s->etype).v_char) {
326 // fprintf(stderr, "%s:%d printing code string from %s\n", __FILE__, __LINE__, s->rname);
327 pic16_pCodeConstString(s->rname , SPEC_CVAL (s->etype).v_char);
341 void pic16_dump_int_registers(FILE *of, set *section)
347 /* put all symbols in an array */
348 if (!elementsInSet(section)) return;
349 rlist = Safe_calloc(elementsInSet(section), sizeof(regs *));
351 for(rprev = setFirstItem(section); rprev; rprev = setNextItem(section)) {
352 rlist[i] = rprev; i++;
355 /* sort symbols according to their address */
356 qsort(rlist, elementsInSet(section), sizeof(regs *), regCompare);
359 if(rlist)Safe_free(rlist);
363 fprintf(of, "\n\n; Internal registers\n");
365 fprintf(of, "%s\tudata_ovr\t0x0000\n", ".registers");
366 for(r = setFirstItem(section); r; r = setNextItem(section)) {
367 fprintf(of, "%s\tres\t%d\n", r->name, r->size);
368 statistics.intsize += r->size;
375 #ifdef WORDS_BIGENDIAN
376 #define _ENDIAN(x) (3-x)
378 #define _ENDIAN(x) (x)
381 #define BYTE_IN_LONG(x,b) ((x>>(8*_ENDIAN(b)))&0xff)
384 /*-----------------------------------------------------------------*
385 * void pic16_list_valid_pics(int ncols, int list_alias)
387 * Print out a formatted list of valid PIC devices
389 * ncols - number of columns in the list.
391 * list_alias - if non-zero, print all of the supported aliases
392 * for a device (e.g. F84, 16F84, etc...)
393 *-----------------------------------------------------------------*/
394 void pic16_list_valid_pics(int ncols, int list_alias)
400 list_alias = sizeof(Pics16[0].name) / sizeof(Pics16[0].name[0]);
402 /* decrement the column number if it's greater than zero */
403 ncols = (ncols > 1) ? ncols-1 : 4;
405 /* Find the device with the longest name */
406 for(i=0,longest=0; i<num_of_supported_PICS; i++) {
407 for(j=0; j<=list_alias; j++) {
408 k = strlen(Pics16[i].name[j]);
416 for(i=0; i < num_of_supported_PICS; i++) {
420 fprintf(stderr,"%s", Pics16[i].name[j]);
422 l = longest + 2 - strlen(Pics16[i].name[j]);
433 } while(++j<list_alias);
441 /*-----------------------------------------------------------------*
443 *-----------------------------------------------------------------*/
444 PIC16_device *pic16_find_device(char *name)
452 for(i = 0; i<num_of_supported_PICS; i++) {
454 for(j=0; j<PROCESSOR_NAMES; j++)
455 if(!STRCASECMP(Pics16[i].name[j], name) )
463 /*-----------------------------------------------------------------*
465 *-----------------------------------------------------------------*/
466 void pic16_init_pic(char *pic_type)
468 pic16 = pic16_find_device(pic_type);
472 fprintf(stderr, "'%s' was not found.\n", pic_type);
474 fprintf(stderr, "No processor has been specified (use -pPROCESSOR_NAME)\n");
476 fprintf(stderr,"Valid devices are:\n");
478 pic16_list_valid_pics(4,0);
482 // printf("PIC processor found and initialized: %s\n", pic_type);
483 pic16_setMaxRAM( 0xfff );
486 /*-----------------------------------------------------------------*
488 *-----------------------------------------------------------------*/
489 int pic16_picIsInitialized(void)
491 if(pic16 && pic16->maxRAMaddress > 0)
498 /*-----------------------------------------------------------------*
499 * char *pic16_processor_base_name(void) - Include file is derived from this.
500 *-----------------------------------------------------------------*/
501 char *pic16_processor_base_name(void)
507 return pic16->name[0];
510 #define DEBUG_CHECK 0
513 * return 1 if register wasn't found and added, 0 otherwise
515 int checkAddReg(set **set, regs *reg)
522 fprintf(stderr, "%s: about to insert REGister: %s ... ", __FUNCTION__, reg->name);
525 for(tmp = setFirstItem(*set); tmp; tmp = setNextItem(*set)) {
526 if(!strcmp(tmp->name, reg->name))break;
532 fprintf(stderr, "added\n");
538 fprintf(stderr, "already added\n");
543 int checkAddSym(set **set, symbol *sym)
549 fprintf(stderr, "%s: about to add SYMbol: %s ... ", __FUNCTION__, sym->name);
552 for(tmp = setFirstItem( *set ); tmp; tmp = setNextItem(*set)) {
553 if(!strcmp(tmp->name, sym->name))break;
559 fprintf(stderr, "added\n");
565 fprintf(stderr, "already added\n");
571 int checkSym(set *set, symbol *sym)
578 fprintf(stderr, "%s: about to search for SYMbol: %s ... ", __FUNCTION__, sym->name);
581 for(tmp = setFirstItem( set ); tmp; tmp = setNextItem( set )) {
582 if(!strcmp(tmp->name, sym->name))break;
587 fprintf(stderr, "not found\n");
593 fprintf(stderr, "found\n");
599 /*-----------------------------------------------------------------*
600 * void pic16_groupRegistersInSection - add each register to its *
601 * corresponding section *
602 *-----------------------------------------------------------------*/
603 void pic16_groupRegistersInSection(set *regset)
609 for(reg=setFirstItem(regset); reg; reg = setNextItem(regset)) {
612 fprintf(stderr, "%s:%d group registers in section, reg: %s (used: %d, %p)\n",
613 __FILE__, __LINE__, reg->name, reg->wasUsed, reg);
616 && !(reg->regop && SPEC_EXTR(OP_SYM_ETYPE(reg->regop))))
619 /* avoid grouping registers that have an initial value,
620 * they will be added later in idataSymSet */
621 if(reg->regop && (OP_SYMBOL(reg->regop)->ival && !OP_SYMBOL(reg->regop)->level))
625 fprintf(stderr, "%s:%d register %s alias:%d fix:%d ival=%i level=%i code=%i\n",
626 __FILE__, __LINE__, reg->name, reg->alias, reg->isFixed,
627 (reg->regop?(OP_SYMBOL(reg->regop)->ival?1:0):-1),
628 (reg->regop?(OP_SYMBOL(reg->regop)->level):-1),
629 (reg->regop?(IS_CODE(OP_SYM_ETYPE(reg->regop))):-1) );
633 for(ssym=setFirstItem(sectSyms);ssym;ssym=setNextItem(sectSyms)) {
634 if(!strcmp(ssym->name, reg->name)) {
635 // fprintf(stderr, "%s:%d section found %s (%p) with var %s\n",
636 // __FILE__, __LINE__, ssym->section->name, ssym->section, ssym->name);
637 if(strcmp(ssym->section->name, "access")) {
638 addSet(&ssym->section->regsSet, reg);
649 if(docontinue)continue;
651 // fprintf(stderr, "%s:%d reg: %s\n", __FILE__, __LINE__, reg->name);
653 if(reg->alias == 0x80) {
654 checkAddReg(&pic16_equ_data, reg);
657 checkAddReg(&pic16_fix_udata, reg);
660 if(reg->pc_type == PO_GPR_TEMP)
661 checkAddReg(&pic16_int_regs, reg);
663 if(reg->accessBank) {
664 if(reg->alias != 0x40)
665 checkAddReg(&pic16_acs_udata, reg);
667 checkAddReg(&pic16_rel_udata, reg);
678 /*-----------------------------------------------------------------*
679 * void pic16_assignConfigWordValue(int address, int value)
681 * All high performance RISC CPU PICs have seven config word starting
682 * at address 0x300000.
683 * This routine will assign a value to that address.
685 *-----------------------------------------------------------------*/
686 void pic16_assignConfigWordValue(int address, unsigned int value)
690 for(i=0;i<pic16->cwInfo.confAddrEnd-pic16->cwInfo.confAddrStart+1;i++) {
691 if((address == pic16->cwInfo.confAddrStart+i)
692 && (pic16->cwInfo.crInfo[i].mask != -1)) {
695 fprintf(stderr, "setting location 0x%X to value 0x%x\tmask: 0x%x\ttest: 0x%x\n",
696 /*address*/ pic16->cwInfo.confAddrStart+i, (~value)&0xff,
697 pic16->cwInfo.crInfo[i].mask,
698 (pic16->cwInfo.crInfo[i].mask) & (~value));
702 if((((pic16->cwInfo.crInfo[i].mask) & (~value))&0xff) != ((~value)&0xff)) {
703 fprintf(stderr, "%s:%d a wrong value has been given for configuration register 0x%x\n",
704 __FILE__, __LINE__, address);
709 pic16->cwInfo.crInfo[i].value = value;
710 pic16->cwInfo.crInfo[i].emit = 1;
716 void pic16_assignIdByteValue(int address, char value)
720 for(i=0;i<pic16->idInfo.idAddrEnd-pic16->idInfo.idAddrStart+1;i++) {
721 if(address == pic16->idInfo.idAddrStart+i) {
722 pic16->idInfo.irInfo[i].value = value;
723 pic16->idInfo.irInfo[i].emit = 1;