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
43 static PIC16_device Pics16[] = {
45 {"p18f242", "18f242", "pic18f242", "f242"}, // aliases
53 {"p18f252", "18f252", "pic18f252", "f252"}, // aliases
61 {"p18f442", "18f442", "pic18f442", "f442"}, // aliases
69 {"p18f452", "18f452", "pic18f452", "f452"}, // aliases
77 {"p18f248", "18f248", "pic18f248", "f248"}, // aliases
85 {"p18f258", "18f258", "pic18f258", "f258"}, // aliases
93 {"p18f448", "18f448", "pic18f448", "f448"}, // aliases
101 {"p18f458", "18f458", "pic18f458", "f458"}, // aliases
109 {"p18f6520", "18f6520", "pic18f6520", "f6520"}, // aliases
117 {"p18f6620", "18f6620", "pic18f6620", "f6620"}, // aliases
124 {"p18f6680", "18f6680", "pic18f6680", "f6680"}, // aliases
131 {"p18f6720", "18f6720", "pic18f6720", "f6720"}, // aliases
138 {"p18f8520", "18f8520", "pic18f8520", "f8520"}, // aliases
145 {"p18f8620", "18f8620", "pic18f8620", "f8620"}, // aliases
152 {"p18f8680", "18f8680", "pic18f8680", "f8680"}, // aliases
159 {"p18f8720", "18f8720", "pic18f8720", "f8720"}, // aliases
168 static int num_of_supported_PICS = sizeof(Pics16)/sizeof(PIC16_device);
170 #define DEFAULT_PIC "452"
172 PIC16_device *pic16=NULL;
174 #define DEFAULT_CONFIG_BYTE 0xff
176 #define CONFIG1H_WORD_ADDRESS 0x300001
177 #define DEFAULT_CONFIG1H_WORD DEFAULT_CONFIG_BYTE
179 #define CONFIG2L_WORD_ADDRESS 0x300002
180 #define DEFAULT_CONFIG2L_WORD DEFAULT_CONFIG_BYTE
182 #define CONFIG2H_WORD_ADDRESS 0x300003
183 #define DEFAULT_CONFIG2H_WORD DEFAULT_CONFIG_BYTE
185 #define CONFIG3H_WORD_ADDRESS 0x300005
186 #define DEFAULT_CONFIG3H_WORD DEFAULT_CONFIG_BYTE
188 #define CONFIG4L_WORD_ADDRESS 0x300006
189 #define DEFAULT_CONFIG4L_WORD DEFAULT_CONFIG_BYTE
191 #define CONFIG5L_WORD_ADDRESS 0x300008
192 #define DEFAULT_CONFIG5L_WORD DEFAULT_CONFIG_BYTE
194 #define CONFIG5H_WORD_ADDRESS 0x300009
195 #define DEFAULT_CONFIG5H_WORD DEFAULT_CONFIG_BYTE
197 #define CONFIG6L_WORD_ADDRESS 0x30000a
198 #define DEFAULT_CONFIG6L_WORD DEFAULT_CONFIG_BYTE
200 #define CONFIG6H_WORD_ADDRESS 0x30000b
201 #define DEFAULT_CONFIG6H_WORD DEFAULT_CONFIG_BYTE
203 #define CONFIG7L_WORD_ADDRESS 0x30000c
204 #define DEFAULT_CONFIG7L_WORD DEFAULT_CONFIG_BYTE
206 #define CONFIG7H_WORD_ADDRESS 0x30000d
207 #define DEFAULT_CONFIG7H_WORD DEFAULT_CONFIG_BYTE
209 static unsigned int config1h_word = DEFAULT_CONFIG1H_WORD;
210 static unsigned int config2l_word = DEFAULT_CONFIG2L_WORD;
211 static unsigned int config2h_word = DEFAULT_CONFIG2H_WORD;
212 static unsigned int config3h_word = DEFAULT_CONFIG3H_WORD;
213 static unsigned int config4l_word = DEFAULT_CONFIG4L_WORD;
214 static unsigned int config5l_word = DEFAULT_CONFIG5L_WORD;
215 static unsigned int config5h_word = DEFAULT_CONFIG5H_WORD;
216 static unsigned int config6l_word = DEFAULT_CONFIG6L_WORD;
217 static unsigned int config6h_word = DEFAULT_CONFIG6H_WORD;
218 static unsigned int config7l_word = DEFAULT_CONFIG7L_WORD;
219 static unsigned int config7h_word = DEFAULT_CONFIG7H_WORD;
221 unsigned int stackPos = 0;
223 extern regs* newReg(short type, short pc_type, int rIdx, char *name, int size, int alias, operand *refop);
225 void pic16_setMaxRAM(int size)
227 pic16->maxRAMaddress = size;
228 stackPos = pic16->RAMsize-1;
230 if (pic16->maxRAMaddress < 0) {
231 fprintf(stderr, "invalid \"#pragma maxram 0x%x\" setting\n",
232 pic16->maxRAMaddress);
237 extern char *iComments2;
239 void pic16_dump_equates(FILE *of, set *equs)
243 r = setFirstItem(equs);
246 fprintf(of, "%s", iComments2);
247 fprintf(of, ";\tEquates to used internal registers\n");
248 fprintf(of, "%s", iComments2);
250 for(; r; r = setNextItem(equs)) {
251 fprintf(of, "%s\tequ\t0x%02x\n", r->name, r->address);
256 int regCompare(const void *a, const void *b)
258 const regs *const *i = a;
259 const regs *const *j = b;
261 /* sort primarily by the address */
262 if( (*i)->address > (*j)->address)return 1;
263 if( (*i)->address < (*j)->address)return -1;
265 /* and secondarily by size */
266 if( (*i)->size > (*j)->size)return 1;
267 if( (*i)->size < (*j)->size)return -1;
273 void pic16_dump_section(FILE *of, set *section, int fix)
275 static int abs_section_no=0;
280 /* put all symbols in an array */
281 rlist = Safe_calloc(elementsInSet(section), sizeof(regs *));
283 for(rprev = setFirstItem(section); rprev; rprev = setNextItem(section)) {
284 rlist[i] = rprev; i++;
287 /* sort symbols according to their address */
288 qsort(rlist, elementsInSet(section), sizeof(regs *), regCompare);
291 if(rlist)free(rlist);
296 fprintf(of, "\n\n\tudata\n");
297 for(r = setFirstItem(section); r; r = setNextItem(section)) {
298 fprintf(of, "%s\tres\t%d\n", r->name, r->size);
304 init_addr = rlist[j]->address;
305 fprintf(of, "\n\nstatic_%s_%02d\tudata\t0X%04X\n", moduleName, abs_section_no++, init_addr);
309 init_addr = r->address;
310 if(rprev && (init_addr != (rprev->address + rprev->size))) {
311 fprintf(of, "\nstatic_%s_%02d\tudata\t0X%04X\n", moduleName, abs_section_no++, init_addr);
314 fprintf(of, "%s\tres\t%d\n", r->name, r->size);
321 void pic16_dump_int_registers(FILE *of, set *section)
327 /* put all symbols in an array */
328 rlist = Safe_calloc(elementsInSet(section), sizeof(regs *));
330 for(rprev = setFirstItem(section); rprev; rprev = setNextItem(section)) {
331 rlist[i] = rprev; i++;
334 /* sort symbols according to their address */
335 qsort(rlist, elementsInSet(section), sizeof(regs *), regCompare);
338 if(rlist)free(rlist);
342 fprintf(of, "\n\n; Internal registers\n");
344 fprintf(of, "%s\tudata_ovr\t0x0000\n", ".registers");
345 for(r = setFirstItem(section); r; r = setNextItem(section))
346 fprintf(of, "%s\tres\t%d\n", r->name, r->size);
353 /*-----------------------------------------------------------------*
354 * void pic16_list_valid_pics(int ncols, int list_alias)
356 * Print out a formatted list of valid PIC devices
358 * ncols - number of columns in the list.
360 * list_alias - if non-zero, print all of the supported aliases
361 * for a device (e.g. F84, 16F84, etc...)
362 *-----------------------------------------------------------------*/
363 void pic16_list_valid_pics(int ncols, int list_alias)
369 list_alias = sizeof(Pics16[0].name) / sizeof(Pics16[0].name[0]);
371 /* decrement the column number if it's greater than zero */
372 ncols = (ncols > 1) ? ncols-1 : 4;
374 /* Find the device with the longest name */
375 for(i=0,longest=0; i<num_of_supported_PICS; i++) {
376 for(j=0; j<=list_alias; j++) {
377 k = strlen(Pics16[i].name[j]);
385 for(i=0; i < num_of_supported_PICS; i++) {
389 fprintf(stderr,"%s", Pics16[i].name[j]);
391 l = longest + 2 - strlen(Pics16[i].name[j]);
402 } while(++j<list_alias);
410 /*-----------------------------------------------------------------*
412 *-----------------------------------------------------------------*/
413 PIC16_device *pic16_find_device(char *name)
421 for(i = 0; i<num_of_supported_PICS; i++) {
423 for(j=0; j<PROCESSOR_NAMES; j++)
424 if(!STRCASECMP(Pics16[i].name[j], name) )
432 /*-----------------------------------------------------------------*
434 *-----------------------------------------------------------------*/
435 void pic16_init_pic(char *pic_type)
437 pic16 = pic16_find_device(pic_type);
441 fprintf(stderr, "'%s' was not found.\n", pic_type);
443 fprintf(stderr, "No processor has been specified (use -pPROCESSOR_NAME)\n");
445 fprintf(stderr,"Valid devices are:\n");
447 pic16_list_valid_pics(4,0);
451 // printf("PIC processor found and initialized: %s\n", pic_type);
452 pic16_setMaxRAM( 0xfff );
455 /*-----------------------------------------------------------------*
457 *-----------------------------------------------------------------*/
458 int pic16_picIsInitialized(void)
460 if(pic16 && pic16->maxRAMaddress > 0)
467 /*-----------------------------------------------------------------*
468 * char *pic16_processor_base_name(void) - Include file is derived from this.
469 *-----------------------------------------------------------------*/
470 char *pic16_processor_base_name(void)
476 return pic16->name[0];
481 * return 1 if register wasn't found and added, 0 otherwise
483 int checkAddReg(set **set, regs *reg)
488 for(tmp = setFirstItem(*set); tmp; tmp = setNextItem(*set)) {
489 if(!strcmp(tmp->name, reg->name))break;
500 /*-----------------------------------------------------------------*
501 * void pic16_groupRegistersInSection - add each register to its *
502 * corresponding section *
503 *-----------------------------------------------------------------*/
504 void pic16_groupRegistersInSection(set *regset)
508 for(reg=setFirstItem(regset); reg; reg = setNextItem(regset)) {
510 && !(reg->regop && SPEC_EXTR(OP_SYM_ETYPE(reg->regop)))) {
512 // fprintf(stderr, "%s:%d register %s\n", __FILE__, __LINE__, reg->name);
515 checkAddReg(&pic16_equ_data, reg);
518 checkAddReg(&pic16_fix_udata, reg);
521 if(reg->pc_type == PO_GPR_TEMP)
522 checkAddReg(&pic16_int_regs, reg);
524 checkAddReg(&pic16_rel_udata, reg);
534 /*-----------------------------------------------------------------*
535 * void pic16_assignConfigWordValue(int address, int value)
537 * All high performance RISC CPU PICs have seven config word starting
538 * at address 0x300000.
539 * This routine will assign a value to that address.
541 *-----------------------------------------------------------------*/
543 void pic16_assignConfigWordValue(int address, int value)
546 case CONFIG1H_WORD_ADDRESS:
547 config1h_word = value;
549 case CONFIG2L_WORD_ADDRESS:
550 config2l_word = value;
552 case CONFIG2H_WORD_ADDRESS:
553 config2h_word = value;
555 case CONFIG3H_WORD_ADDRESS:
556 config3h_word = value;
558 case CONFIG4L_WORD_ADDRESS:
559 config4l_word = value;
561 case CONFIG5L_WORD_ADDRESS:
562 config5l_word = value;
564 case CONFIG5H_WORD_ADDRESS:
565 config5h_word = value;
567 case CONFIG6L_WORD_ADDRESS:
568 config6l_word = value;
570 case CONFIG6H_WORD_ADDRESS:
571 config6h_word = value;
573 case CONFIG7L_WORD_ADDRESS:
574 config7l_word = value;
576 case CONFIG7H_WORD_ADDRESS:
577 config7h_word = value;
581 fprintf(stderr,"setting config word to 0x%x\n",value);
584 /*-----------------------------------------------------------------*
585 * int pic16_getConfigWord(int address)
587 * Get the current value of the config word.
589 *-----------------------------------------------------------------*/
591 int pic16_getConfigWord(int address)
594 case CONFIG1H_WORD_ADDRESS:
595 return config1h_word;
596 case CONFIG2L_WORD_ADDRESS:
597 return config2l_word;
598 case CONFIG2H_WORD_ADDRESS:
599 return config2h_word;
600 case CONFIG3H_WORD_ADDRESS:
601 return config3h_word;
602 case CONFIG4L_WORD_ADDRESS:
603 return config4l_word;
604 case CONFIG5L_WORD_ADDRESS:
605 return config5l_word;
606 case CONFIG5H_WORD_ADDRESS:
607 return config5h_word;
608 case CONFIG6L_WORD_ADDRESS:
609 return config6l_word;
610 case CONFIG6H_WORD_ADDRESS:
611 return config6h_word;
612 case CONFIG7L_WORD_ADDRESS:
613 return config7l_word;
614 case CONFIG7H_WORD_ADDRESS:
615 return config7h_word;