X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fpic%2Fdevice.c;h=ffb95d014918e0dc7ff456c9dcb4066cbedddaeb;hb=f3a44fc094dc5ce393e2029d3c7c6587a4b1a835;hp=fa970737f15901620341b190fe271f187ecb23d3;hpb=2714a022b636517a7388d060577c68ca3016140f;p=fw%2Fsdcc diff --git a/src/pic/device.c b/src/pic/device.c index fa970737..ffb95d01 100644 --- a/src/pic/device.c +++ b/src/pic/device.c @@ -18,38 +18,21 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -------------------------------------------------------------------------*/ -#include -#include -#include - -#include "common.h" // Include everything in the SDCC src directory -#include "newalloc.h" - - -#include "main.h" -#include "pcode.h" -#include "ralloc.h" #include "device.h" -#if defined(__BORLANDC__) || defined(_MSC_VER) -#define STRCASECMP stricmp -#define STRNCASECMP strnicmp -#else -#define STRCASECMP strcasecmp -#define STRNCASECMP strncasecmp -#endif - -extern int Gstack_base_addr; -extern int Gstack_size; +/* + * Imports + */ +extern set *includeDirsSet; +extern set *userIncDirsSet; +extern set *libDirsSet; +extern set *libPathsSet; #define MAX_PICLIST 200 static PIC_device *Pics[MAX_PICLIST]; +static PIC_device *pic = NULL; static int num_of_supported_PICS = 0; - -static PIC_device *pic=NULL; - -int maxRAMaddress = 0; -AssignedMemory *finalMapping=NULL; +static int maxRAMaddress = 0; #define CONFIG_WORD_ADDRESS 0x2007 #define CONFIG2_WORD_ADDRESS 0x2008 @@ -60,587 +43,443 @@ AssignedMemory *finalMapping=NULL; #define PIC14_STRING_LEN 256 #define SPLIT_WORDS_MAX 16 +/* Keep track of whether we found an assignment to the __config words. */ +static int pic14_hasSetConfigWord = 0; static unsigned int config_word = DEFAULT_CONFIG_WORD; static unsigned int config2_word = DEFAULT_CONFIG2_WORD; - -extern int pic14_is_shared (regs *reg); -extern void emitSymbolToFile (FILE *of, const char *name, const char *section_type, int size, int addr, int useEQU, int globalize); +static memRange *rangeRAM = NULL; /* parse a value from the configuration file */ -static int parse_config_value(char *str) +static int +parse_config_value (char *str) { - if (str[strlen(str) - 1] == 'K') - return atoi(str) * 1024; /* like "1K" */ - - else if (STRNCASECMP(str, "0x", 2) == 0) - return strtol(str+2, NULL, 16); /* like "0x400" */ - - else - return atoi(str); /* like "1024" */ + if (str[strlen (str) - 1] == 'K') + return atoi (str) * 1024; /* like "1K" */ + + else if (STRNCASECMP (str, "0x", 2) == 0) + return strtol (str+2, NULL, 16); /* like "0x400" */ + + else + return atoi (str); /* like "1024" */ } /* split a line into words */ -static int split_words(char result_word[SPLIT_WORDS_MAX][PIC14_STRING_LEN], char *str) +static int +split_words (char **result_word, char *str) { - char *pos = str; - int num_words = 0; - int ccount; - - while (*pos != '\0' && num_words < SPLIT_WORDS_MAX) { - /* remove leading spaces */ - while (isspace(*pos) || *pos == ',') - pos++; - - /* copy everything up until the first space or comma */ - for (ccount = 0; *pos != '\0' && !isspace(*pos) && *pos != ',' && ccount < PIC14_STRING_LEN-1; ccount++, pos++) - result_word[num_words][ccount] = *pos; - result_word[num_words][ccount] = '\0'; - - num_words++; - } - - return num_words; + static const char delim[] = " \f\n\r\t\v,"; + char *token; + int num_words; + + /* release previously allocated words */ + for (num_words = 0; num_words < SPLIT_WORDS_MAX; num_words++) + { + if (result_word[num_words]) + { + free (result_word[num_words]); + result_word[num_words] = NULL; + } // if + } // for + + /* split line */ + token = strtok (str, delim); + num_words = 0; + while (token && (num_words < SPLIT_WORDS_MAX)) + { + result_word[num_words] = Safe_strdup (token); + num_words++; + token = strtok (NULL, delim); + } // while + + return num_words; } /* remove annoying prefixes from the processor name */ -static char *sanitise_processor_name(char *name) +static char * +sanitise_processor_name (char *name) { - char *proc_pos = name; + char *proc_pos = name; - if (name == NULL) - return NULL; - - if (STRNCASECMP(proc_pos, "pic", 3) == 0) - proc_pos += 3; + if (name == NULL) + return NULL; - else if (tolower(*proc_pos) == 'p') - proc_pos += 1; - - return proc_pos; + if (STRNCASECMP (proc_pos, "pic", 3) == 0) + proc_pos += 3; + + else if (tolower (*proc_pos) == 'p') + proc_pos += 1; + + return proc_pos; } /* create a structure for a pic processor */ -static PIC_device *create_pic(char *pic_name, int maxram, int bankmsk, int confsiz, int program, int data, int eeprom, int io) +static PIC_device * +create_pic (char *pic_name, int maxram, int bankmsk, int confsiz, + int program, int data, int eeprom, int io) { - PIC_device *new_pic; - char *simple_pic_name = sanitise_processor_name(pic_name); - - new_pic = Safe_calloc(1, sizeof(PIC_device)); - new_pic->name = Safe_calloc(strlen(simple_pic_name)+1, sizeof(char)); - strcpy(new_pic->name, simple_pic_name); - - new_pic->defMaxRAMaddrs = maxram; - new_pic->bankMask = bankmsk; - new_pic->hasSecondConfigReg = confsiz > 1; - - new_pic->programMemSize = program; - new_pic->dataMemSize = data; - new_pic->eepromMemSize = eeprom; - new_pic->ioPins = io; - - Pics[num_of_supported_PICS] = new_pic; - num_of_supported_PICS++; - - return new_pic; -} + PIC_device *new_pic; + char *simple_pic_name = sanitise_processor_name (pic_name); + new_pic = Safe_calloc (1, sizeof (PIC_device)); + new_pic->name = Safe_strdup (simple_pic_name); -/* mark some registers as being duplicated across banks */ -static void register_map(int num_words, char word[SPLIT_WORDS_MAX][PIC14_STRING_LEN]) -{ - memRange r; - int pcount; - - if (num_words < 3) { - fprintf(stderr, "WARNING: not enough values in %s regmap directive\n", DEVICE_FILE_NAME); - return; - } - - r.alias = parse_config_value(word[1]); + new_pic->defMaxRAMaddrs = maxram; + new_pic->bankMask = bankmsk; + new_pic->hasSecondConfigReg = confsiz > 1; - for (pcount = 2; pcount < num_words; pcount++) { - - r.start_address = parse_config_value(word[pcount]); - r.end_address = parse_config_value(word[pcount]); - r.bank = (r.start_address >> 7) & 3; - - addMemRange(&r, 1); - } -} + new_pic->programMemSize = program; + new_pic->dataMemSize = data; + new_pic->eepromMemSize = eeprom; + new_pic->ioPins = io; + new_pic->ram = rangeRAM; -/* define ram areas - may be duplicated across banks */ -static void ram_map(int num_words, char word[SPLIT_WORDS_MAX][PIC14_STRING_LEN]) -{ - memRange r; - - if (num_words < 4) { - fprintf(stderr, "WARNING: not enough values in %s memmap directive\n", DEVICE_FILE_NAME); - return; - } - - r.start_address = parse_config_value(word[1]); - r.end_address = parse_config_value(word[2]); - r.alias = parse_config_value(word[3]); - r.bank = (r.start_address >> 7) & 3; - - addMemRange(&r, 0); + Pics[num_of_supported_PICS] = new_pic; + num_of_supported_PICS++; + + return new_pic; } -extern set *includeDirsSet; -extern set *userIncDirsSet; -extern set *libDirsSet; -extern set *libPathsSet; -/* read the file with all the pic14 definitions and pick out the definition for a processor - * if specified. if pic_name is NULL reads everything */ -static PIC_device *find_device(char *pic_name) +/* mark some registers as being duplicated across banks */ +static void +register_map (int num_words, char **word) { - FILE *pic_file; - char pic_buf[PIC14_STRING_LEN]; - char *pic_buf_pos; - int found_processor = FALSE; - int done = FALSE; - char processor_name[SPLIT_WORDS_MAX][PIC14_STRING_LEN]; - int num_processor_names = 0; - int pic_maxram = 0; - int pic_bankmsk = 0; - int pic_confsiz = 0; - int pic_program = 0; - int pic_data = 0; - int pic_eeprom = 0; - int pic_io = 0; - char *simple_pic_name; - char *dir; - char filename[512]; - int len = 512; - - /* allow abbreviations of the form "f877" - convert to "16f877" */ - simple_pic_name = sanitise_processor_name(pic_name); - num_of_supported_PICS = 0; - - /* open the piclist file */ - /* first scan all include directories */ - pic_file = NULL; - //fprintf( stderr, "%s: searching %s\n", __FUNCTION__, DEVICE_FILE_NAME ); - for (dir = setFirstItem(includeDirsSet); - !pic_file && dir; - dir = setNextItem(includeDirsSet)) - { - //fprintf( stderr, "searching1 %s\n", dir ); - SNPRINTF(&filename[0], len, "%s%s%s", dir, DIR_SEPARATOR_STRING, DEVICE_FILE_NAME); - pic_file = fopen( filename, "rt" ); - if (pic_file) break; - } // for - for (dir = setFirstItem(userIncDirsSet); - !pic_file && dir; - dir = setNextItem(userIncDirsSet)) - { - //fprintf( stderr, "searching2 %s\n", dir ); - SNPRINTF(&filename[0], len, "%s%s%s", dir, DIR_SEPARATOR_STRING, DEVICE_FILE_NAME); - pic_file = fopen( filename, "rt" ); - if (pic_file) break; - } // for - for (dir = setFirstItem(libDirsSet); - !pic_file && dir; - dir = setNextItem(libDirsSet)) - { - //fprintf( stderr, "searching3 %s\n", dir ); - SNPRINTF(&filename[0], len, "%s%s%s", dir, DIR_SEPARATOR_STRING, DEVICE_FILE_NAME); - pic_file = fopen( filename, "rt" ); - if (pic_file) break; - } // for - for (dir = setFirstItem(libPathsSet); - !pic_file && dir; - dir = setNextItem(libPathsSet)) - { - //fprintf( stderr, "searching4 %s\n", dir ); - SNPRINTF(&filename[0], len, "%s%s%s", dir, DIR_SEPARATOR_STRING, DEVICE_FILE_NAME); - pic_file = fopen( filename, "rt" ); - if (pic_file) break; - } // for - if (!pic_file) { - pic_file = fopen(DATADIR LIB_DIR_SUFFIX DIR_SEPARATOR_STRING "pic" DIR_SEPARATOR_STRING DEVICE_FILE_NAME, "rt"); - } - if (pic_file == NULL) { - /* this second attempt is used when initially building the libraries */ - pic_file = fopen(".." DIR_SEPARATOR_STRING ".." DIR_SEPARATOR_STRING ".." DIR_SEPARATOR_STRING ".." - DIR_SEPARATOR_STRING "src" DIR_SEPARATOR_STRING "pic" DIR_SEPARATOR_STRING - DEVICE_FILE_NAME, "rt"); - if (pic_file == NULL) { - fprintf(stderr, "can't find %s\n", DATADIR LIB_DIR_SUFFIX DIR_SEPARATOR_STRING "pic" - DIR_SEPARATOR_STRING DEVICE_FILE_NAME); - return NULL; - } - } - - /* read line by line */ - pic_buf[sizeof(pic_buf)-1] = '\0'; - while (fgets(pic_buf, sizeof(pic_buf)-1, pic_file) != NULL && !done) { - - /* remove trailing spaces */ - while (isspace(pic_buf[strlen(pic_buf)-1])) - pic_buf[strlen(pic_buf)-1] = '\0'; - - /* remove leading spaces */ - for (pic_buf_pos = pic_buf; isspace(*pic_buf_pos); pic_buf_pos++) - {} - - /* ignore comment / empty lines */ - if (*pic_buf_pos != '\0' && *pic_buf_pos != '#') { - - /* split into fields */ - char pic_word[SPLIT_WORDS_MAX][PIC14_STRING_LEN]; - int num_pic_words; - int wcount; - - num_pic_words = split_words(pic_word, pic_buf_pos); - - if (STRCASECMP(pic_word[0], "processor") == 0) { - - if (pic_name == NULL) { - /* this is the mode where we read all the processors in - store the names for now */ - if (num_processor_names > 0) { - /* store away all the previous processor definitions */ - int dcount; - - for (dcount = 1; dcount < num_processor_names; dcount++) - create_pic(processor_name[dcount], pic_maxram, pic_bankmsk, - pic_confsiz, pic_program, pic_data, pic_eeprom, pic_io); - } - - num_processor_names = split_words(processor_name, pic_buf_pos); - } - else { - /* if we've just completed reading a processor definition stop now */ - if (found_processor) - done = TRUE; - else { - /* check if this processor name is a match */ - for (wcount = 1; wcount < num_pic_words; wcount++) { - - /* skip uninteresting prefixes */ - char *found_name = sanitise_processor_name(pic_word[wcount]); - - if (STRCASECMP(found_name, simple_pic_name) == 0) - found_processor = TRUE; - } - } - } - } - - else { - if (found_processor || pic_name == NULL) { - /* only parse a processor section if we've found the one we want */ - if (STRCASECMP(pic_word[0], "maxram") == 0 && num_pic_words > 1) { - pic_maxram = parse_config_value(pic_word[1]); - setMaxRAM(pic_maxram); - } - else if (STRCASECMP(pic_word[0], "bankmsk") == 0 && num_pic_words > 1) - pic_bankmsk = parse_config_value(pic_word[1]); - - else if (STRCASECMP(pic_word[0], "confsiz") == 0 && num_pic_words > 1) - pic_confsiz = parse_config_value(pic_word[1]); - - else if (STRCASECMP(pic_word[0], "program") == 0 && num_pic_words > 1) - pic_program = parse_config_value(pic_word[1]); - - else if (STRCASECMP(pic_word[0], "data") == 0 && num_pic_words > 1) - pic_data = parse_config_value(pic_word[1]); - - else if (STRCASECMP(pic_word[0], "eeprom") == 0 && num_pic_words > 1) - pic_eeprom = parse_config_value(pic_word[1]); - - else if (STRCASECMP(pic_word[0], "io") == 0 && num_pic_words > 1) - pic_io = parse_config_value(pic_word[1]); - - else if (STRCASECMP(pic_word[0], "regmap") == 0 && num_pic_words > 2) { - if (found_processor) - register_map(num_pic_words, pic_word); - } - else if (STRCASECMP(pic_word[0], "memmap") == 0 && num_pic_words > 2) { - if (found_processor) - ram_map(num_pic_words, pic_word); - } - else { - fprintf(stderr, "WARNING: %s: bad syntax `%s'\n", DEVICE_FILE_NAME, pic_word[0]); - } - } - } - } - } - - fclose(pic_file); - - /* if we're in read-the-lot mode then create the final processor definition */ - if (pic_name == NULL) { - - if (num_processor_names > 0) { - /* store away all the previous processor definitions */ - int dcount; - - for (dcount = 1; dcount < num_processor_names; dcount++) - create_pic(processor_name[dcount], pic_maxram, pic_bankmsk, - pic_confsiz, pic_program, pic_data, pic_eeprom, pic_io); - } - } - else { - /* in search mode */ - if (found_processor) { - /* create a new pic entry */ - return create_pic(pic_name, pic_maxram, pic_bankmsk, - pic_confsiz, pic_program, pic_data, pic_eeprom, pic_io); - } - } - - return NULL; -} + memRange *r; + int pcount; -void addMemRange(memRange *r, int type) -{ - int i; - int alias = r->alias; - - if (maxRAMaddress < 0) { - fprintf(stderr, "missing maxram setting in %s\n", DEVICE_FILE_NAME); - return; - } - - do { - for (i=r->start_address; i<= r->end_address; i++) { - if ((i|alias) <= maxRAMaddress) { - /* if we haven't seen this address before, enter it */ - if (!finalMapping[i | alias].isValid) { - finalMapping[i | alias].isValid = 1; - finalMapping[i | alias].alias = r->alias; - finalMapping[i | alias].bank = r->bank; - if(type) { - /* hack for now */ - finalMapping[i | alias].isSFR = 1; - } else { - finalMapping[i | alias].isSFR = 0; - } - } - } else { - if (getenv("SDCCPICDEBUG")) { - fprintf(stderr, "WARNING: %s:%s memory at 0x%x is beyond max ram = 0x%x\n", - __FILE__,__FUNCTION__,(i|alias), maxRAMaddress); - } - } - } - - /* Decrement alias */ - if (alias) { - alias -= ((alias & (alias - 1)) ^ alias); - } else { - alias--; - } - - } while (alias >= 0); -} + if (num_words < 3) + { + fprintf (stderr, "WARNING: not enough values in %s regmap directive\n", + DEVICE_FILE_NAME); + return; + } // if -void setMaxRAM(int size) -{ - int i; - maxRAMaddress = size; - - if (maxRAMaddress < 0) { - fprintf(stderr, "invalid maxram 0x%x setting in %s\n", - maxRAMaddress, DEVICE_FILE_NAME); - return; - } - - finalMapping = Safe_calloc(1+maxRAMaddress, - sizeof(AssignedMemory)); - - /* Now initialize the finalMapping array */ - - for(i=0; i<=maxRAMaddress; i++) { - finalMapping[i].reg = NULL; - finalMapping[i].isValid = 0; - finalMapping[i].bank = (i>>7); - } + for (pcount = 2; pcount < num_words; pcount++) + { + r = Safe_calloc (1, sizeof (memRange)); + + r->start_address = parse_config_value (word[pcount]); + r->end_address = parse_config_value (word[pcount]); + r->alias = parse_config_value (word[1]); + r->bank = (r->start_address >> 7) & 3; + // add memRange to device entry for future lookup (sharebanks) + r->next = rangeRAM; + rangeRAM = r; + } // for } -/*-----------------------------------------------------------------* -*-----------------------------------------------------------------*/ -int isREGinBank(regs *reg, int bank) +/* define ram areas - may be duplicated across banks */ +static void +ram_map (int num_words, char **word) { - - if(!reg || !pic) - return 0; - - if((int)((reg->address | reg->alias) & pic->bankMask & bank) == bank) - return 1; - - return 0; -} + memRange *r; -/*-----------------------------------------------------------------* -*-----------------------------------------------------------------*/ -int REGallBanks(regs *reg) -{ - - if(!reg || !pic) - return 0; - - return ((reg->address | reg->alias) & pic->bankMask); - + if (num_words < 4) + { + fprintf (stderr, "WARNING: not enough values in %s memmap directive\n", + DEVICE_FILE_NAME); + return; + } // if + + r = Safe_calloc (1, sizeof (memRange)); + //fprintf (stderr, "%s: %s %s %s\n", __FUNCTION__, word[1], word[2], word[3]); + + r->start_address = parse_config_value (word[1]); + r->end_address = parse_config_value (word[2]); + r->alias = parse_config_value (word[3]); + r->bank = (r->start_address >> 7) & 3; + + // add memRange to device entry for future lookup (sharebanks) + r->next = rangeRAM; + rangeRAM = r; } -/*-----------------------------------------------------------------* -*-----------------------------------------------------------------*/ - -int isSFR(int address) +static void +setMaxRAM (int size) { - - if( (address > maxRAMaddress) || !finalMapping[address].isSFR) - return 0; - - return 1; - -} + maxRAMaddress = size; -/* -* dump_map -- debug stuff -*/ - -void dump_map(void) -{ - int i; - - for(i=0; i<=maxRAMaddress; i++) { - //fprintf(stdout , "addr 0x%02x is %s\n", i, ((finalMapping[i].isValid) ? "valid":"invalid")); - - if(finalMapping[i].isValid) { - fprintf(stderr,"addr: 0x%02x",i); - if(finalMapping[i].isSFR) - fprintf(stderr," isSFR"); - if(finalMapping[i].reg) - fprintf( stderr, " reg %s", finalMapping[i].reg->name); - fprintf(stderr, "\n"); - } - } - + if (maxRAMaddress < 0) + { + fprintf (stderr, "invalid maxram 0x%x setting in %s\n", + maxRAMaddress, DEVICE_FILE_NAME); + return; + } // if } -void dump_sfr(FILE *of) +/* read the file with all the pic14 definitions and pick out the definition + * for a processor if specified. if pic_name is NULL reads everything */ +static PIC_device * +find_device (char *pic_name) { -#if 0 - int start=-1; - int bank_base; - static int udata_flag=0; -#endif - int addr=0; - - //dump_map(); /* display the register map */ - //fprintf(stdout,";dump_sfr \n"); - if (maxRAMaddress < 0) { - fprintf(stderr, "missing maxram setting in %s\n", DEVICE_FILE_NAME); - return; - } - - for (addr = 0; addr <= maxRAMaddress; addr++) - { - regs *reg = finalMapping[addr].reg; - - if (reg && !reg->isEmitted) - { - if (pic14_options.isLibrarySource && pic14_is_shared (reg)) - { - /* rely on external declarations for the non-fixed stack */ - /* Update: We always emit the STACK symbols into a - * udata_shr section, so no extern declaration is - * required. */ - //fprintf (of, "\textern\t%s\n", reg->name); - } else { - emitSymbolToFile (of, reg->name, "udata", reg->size, reg->isFixed ? reg->address : -1, 0, pic14_is_shared (reg)); - } - - reg->isEmitted = 1; - } - } // for - -#if 0 - do { - - if(finalMapping[addr].reg && !finalMapping[addr].reg->isEmitted) { - - if(start<0) - start = addr; - } else { - if(start>=0) { - - /* clear the lower 7-bits of the start address of the first - * variable declared in this bank. The upper bits for the mid - * range pics are the bank select bits. - */ - - bank_base = start & 0xfff8; - - /* The bank number printed in the cblock comment tacitly - * assumes that the first register in the contiguous group - * of registers represents the bank for the whole group */ - - if ( (start != addr) && (!udata_flag) ) { - udata_flag = 1; - //fprintf(of,"\tudata\n"); - } - - for( ; start < addr; start++) { - if((finalMapping[start].reg) && - (!finalMapping[start].reg->isEmitted) && - (!finalMapping[start].instance) && - (!finalMapping[start].isSFR)) { - - if (finalMapping[start].reg->isFixed) { - unsigned i; - for (i=0; isize; i++) { - fprintf(of,"%s\tEQU\t0x%04x\n", - finalMapping[start].reg->name, - finalMapping[start].reg->address+i); - } - } else { - emitSymbolToFile (of, finalMapping[start].reg->name, finalMapping[start].reg->size); -#if 0 - fprintf(of,"%s\tres\t%i\n", - finalMapping[start].reg->name, - finalMapping[start].reg->size); -#endif - } - finalMapping[start].reg->isEmitted = 1; - } - } - - start = -1; - } - - } - - addr++; - - } while(addr <= maxRAMaddress); + FILE *pic_file; + char pic_buf[PIC14_STRING_LEN]; + int found_processor = FALSE; + int done = FALSE; + char **processor_name; + int num_processor_names = 0; + int pic_maxram = 0; + int pic_bankmsk = 0; + int pic_confsiz = 0; + int pic_program = 0; + int pic_data = 0; + int pic_eeprom = 0; + int pic_io = 0; + char *simple_pic_name; + char *dir; + char filename[512]; + int len = 512; + char **pic_word; + int num_pic_words; + int wcount; + + pic_word = Safe_calloc (sizeof (char *), SPLIT_WORDS_MAX); + processor_name = Safe_calloc (sizeof (char *), SPLIT_WORDS_MAX); + + /* allow abbreviations of the form "f877" - convert to "16f877" */ + simple_pic_name = sanitise_processor_name (pic_name); + num_of_supported_PICS = 0; + + /* open the piclist file */ + /* first scan all include directories */ + pic_file = NULL; + //fprintf (stderr, "%s: searching %s\n", __FUNCTION__, DEVICE_FILE_NAME); + for (dir = setFirstItem (userIncDirsSet); + !pic_file && dir; + dir = setNextItem (userIncDirsSet)) + { + //fprintf (stderr, "searching1 %s\n", dir); + SNPRINTF (&filename[0], len, "%s%s", dir, + DIR_SEPARATOR_STRING DEVICE_FILE_NAME); + pic_file = fopen (filename, "rt"); + if (pic_file) break; + } // for + + for (dir = setFirstItem (includeDirsSet); + !pic_file && dir; + dir = setNextItem (includeDirsSet)) + { + //fprintf (stderr, "searching2 %s\n", dir); + SNPRINTF (&filename[0], len, "%s%s", dir, + DIR_SEPARATOR_STRING DEVICE_FILE_NAME); + pic_file = fopen (filename, "rt"); + if (pic_file) break; + } // for + + for (dir = setFirstItem (libDirsSet); + !pic_file && dir; + dir = setNextItem (libDirsSet)) + { + //fprintf (stderr, "searching3 %s\n", dir); + SNPRINTF (&filename[0], len, "%s%s", dir, + DIR_SEPARATOR_STRING DEVICE_FILE_NAME); + pic_file = fopen (filename, "rt"); + if (pic_file) break; + } // for + + for (dir = setFirstItem (libPathsSet); + !pic_file && dir; + dir = setNextItem (libPathsSet)) + { + //fprintf (stderr, "searching4 %s\n", dir); + SNPRINTF (&filename[0], len, "%s%s", dir, + DIR_SEPARATOR_STRING DEVICE_FILE_NAME); + pic_file = fopen (filename, "rt"); + if (pic_file) break; + } // for + + if (!pic_file) + { + SNPRINTF (&filename[0], len, "%s", + DATADIR LIB_DIR_SUFFIX + DIR_SEPARATOR_STRING "pic" + DIR_SEPARATOR_STRING DEVICE_FILE_NAME); + pic_file = fopen (filename, "rt"); + } // if + + if (pic_file == NULL) + { + fprintf (stderr, "can't find %s\n", DEVICE_FILE_NAME); + return NULL; + } // if + if (options.verbose) + printf ("Using devices from %s.\n", filename); -#endif + /* read line by line */ + pic_buf[sizeof (pic_buf)-1] = '\0'; + while (fgets (pic_buf, sizeof (pic_buf)-1, pic_file) != NULL && !done) + { + /* strip comments */ + { + char *comment = strchr (pic_buf, '#'); + if (comment) + *comment = 0; + } + + /* split into fields */ + num_pic_words = split_words (pic_word, pic_buf); + + /* ignore comment / empty lines */ + if (num_pic_words > 0) + { + + if (STRCASECMP (pic_word[0], "processor") == 0) + { + if (pic_name == NULL) + { + int dcount; + + /* this is the mode where we read all the processors in - store the names for now */ + if (num_processor_names > 0) + { + /* store away all the previous processor definitions */ + for (dcount = 1; dcount < num_processor_names; dcount++) + { + create_pic (processor_name[dcount], pic_maxram, + pic_bankmsk, pic_confsiz, pic_program, + pic_data, pic_eeprom, pic_io); + } // for + } // if + + /* copy processor names */ + num_processor_names = num_pic_words; + for (dcount = 1; dcount < num_processor_names; dcount++) + { + processor_name[dcount] = pic_word[dcount]; + pic_word[dcount] = NULL; + } // for + } // if + else + { + /* if we've just completed reading a processor definition stop now */ + if (found_processor) + done = TRUE; + else + { + /* check if this processor name is a match */ + for (wcount = 1; wcount < num_pic_words; wcount++) + { + /* skip uninteresting prefixes */ + char *found_name = sanitise_processor_name (pic_word[wcount]); + + if (STRCASECMP (found_name, simple_pic_name) == 0) + found_processor = TRUE; + } // for + } // if + } // if + } // if + else + { + if (found_processor || pic_name == NULL) + { + /* only parse a processor section if we've found the one we want */ + if (STRCASECMP (pic_word[0], "maxram") == 0 && num_pic_words > 1) + { + pic_maxram = parse_config_value (pic_word[1]); + setMaxRAM (pic_maxram); + } // if + + else if (STRCASECMP (pic_word[0], "bankmsk") == 0 && num_pic_words > 1) + pic_bankmsk = parse_config_value (pic_word[1]); + + else if (STRCASECMP (pic_word[0], "confsiz") == 0 && num_pic_words > 1) + pic_confsiz = parse_config_value (pic_word[1]); + + else if (STRCASECMP (pic_word[0], "program") == 0 && num_pic_words > 1) + pic_program = parse_config_value (pic_word[1]); + + else if (STRCASECMP (pic_word[0], "data") == 0 && num_pic_words > 1) + pic_data = parse_config_value (pic_word[1]); + + else if (STRCASECMP (pic_word[0], "eeprom") == 0 && num_pic_words > 1) + pic_eeprom = parse_config_value (pic_word[1]); + + else if (STRCASECMP (pic_word[0], "io") == 0 && num_pic_words > 1) + pic_io = parse_config_value (pic_word[1]); + + else if (STRCASECMP (pic_word[0], "regmap") == 0 && num_pic_words > 2) + { + if (found_processor) + register_map (num_pic_words, pic_word); + } // if + + else if (STRCASECMP (pic_word[0], "memmap") == 0 && num_pic_words > 2) + { + if (found_processor) + ram_map (num_pic_words, pic_word); + } // if + + else + { + fprintf (stderr, "WARNING: %s: bad syntax `%s'\n", + DEVICE_FILE_NAME, pic_word[0]); + } // if + } // if + } // if + } // if + } // while + + fclose (pic_file); + + split_words (pic_word, NULL); + free (pic_word); + + /* if we're in read-the-lot mode then create the final processor definition */ + if (pic_name == NULL) + { + if (num_processor_names > 0) + { + /* store away all the previous processor definitions */ + int dcount; + + for (dcount = 1; dcount < num_processor_names; dcount++) + { + create_pic (processor_name[dcount], pic_maxram, pic_bankmsk, + pic_confsiz, pic_program, pic_data, pic_eeprom, + pic_io); + } // for + } // if + } // if + else + { + /* in search mode */ + if (found_processor) + { + split_words (processor_name, NULL); + free (processor_name); + + /* create a new pic entry */ + return create_pic (pic_name, pic_maxram, pic_bankmsk, + pic_confsiz, pic_program, pic_data, + pic_eeprom, pic_io); + } // if + } // if + + split_words (processor_name, NULL); + free (processor_name); + + return NULL; } /*-----------------------------------------------------------------* -* void list_valid_pics(int ncols, int list_alias) -* -* Print out a formatted list of valid PIC devices -* -* ncols - number of columns in the list. -* -* list_alias - if non-zero, print all of the supported aliases -* for a device (e.g. F84, 16F84, etc...) -*-----------------------------------------------------------------*/ -void list_valid_pics(int ncols) + * void list_valid_pics(int ncols, int list_alias) + * + * Print out a formatted list of valid PIC devices + * + * ncols - number of columns in the list. + * + * list_alias - if non-zero, print all of the supported aliases + * for a device (e.g. F84, 16F84, etc...) + *-----------------------------------------------------------------*/ +static void +list_valid_pics(int ncols) { int col=0,longest; int i,k,l; @@ -710,7 +549,7 @@ void list_valid_pics(int ncols) /*-----------------------------------------------------------------* * *-----------------------------------------------------------------*/ -void init_pic(char *pic_type) +PIC_device *init_pic(char *pic_type) { char long_name[PIC14_STRING_LEN]; @@ -730,6 +569,7 @@ void init_pic(char *pic_type) exit(1); } } + return pic; } /*-----------------------------------------------------------------* @@ -756,179 +596,15 @@ char *processor_base_name(void) return pic->name; } -/*-----------------------------------------------------------------* -*-----------------------------------------------------------------*/ -int validAddress(int address, int reg_size) -{ - int i; - - if (maxRAMaddress < 0) { - fprintf(stderr, "missing maxram setting in %s\n", DEVICE_FILE_NAME); - return 0; - } - // fprintf(stderr, "validAddress: Checking 0x%04x\n",address); - assert (reg_size > 0); - if(address + (reg_size - 1) > maxRAMaddress) - return 0; - - for (i=0; isize) { - fprintf(stderr,"WARNING: %s:%s:%d Bad register\n",__FILE__,__FUNCTION__,__LINE__); - return; - } - - if (maxRAMaddress < 0) { - fprintf(stderr, "missing maxram setting in %s\n", DEVICE_FILE_NAME); - return; - } - - for(i=0; isize; i++) { - - alias = finalMapping[reg->address].alias; - reg->alias = alias; - - do { - - //fprintf(stdout,"mapping %s to address 0x%02x, reg size = %d\n",reg->name, (reg->address+alias+i),reg->size); - - finalMapping[reg->address + alias + i].reg = reg; - finalMapping[reg->address + alias + i].instance = i; - - /* Decrement alias */ - if(alias) - alias -= ((alias & (alias - 1)) ^ alias); - else - alias--; - - } while (alias>=0); - } - - //fprintf(stderr,"%s - %s addr = 0x%03x, size %d\n",__FUNCTION__,reg->name, reg->address,reg->size); - - reg->isMapped = 1; - -} - -/*-----------------------------------------------------------------* -*-----------------------------------------------------------------*/ -int assignRegister(regs *reg, int start_address) +int IS_CONFIG_ADDRESS(int address) { - int i; - - //fprintf(stderr,"%s - %s start_address = 0x%03x\n",__FUNCTION__,reg->name, start_address); - if(reg->isFixed) { - - if (validAddress(reg->address,reg->size)) { - //fprintf(stderr,"%s - %s address = 0x%03x\n",__FUNCTION__,reg->name, reg->address); - mapRegister(reg); - return reg->address; - } - - if( isSFR(reg->address)) { - mapRegister(reg); - return reg->address; - } - - if (getenv("SDCCPICDEBUG")) { - fprintf(stderr, "WARNING: Ignoring Out of Range register assignment at fixed address %d, %s\n", - reg->address, reg->name); - } - - } else { - - /* This register does not have a fixed address requirement - * so we'll search through all availble ram address and - * assign the first one */ - - for (i=start_address; i<=maxRAMaddress; i++) { - - if (validAddress(i,reg->size)) { - reg->address = i; - mapRegister(reg); - return i; - } - } - - fprintf(stderr, "WARNING: No more RAM available for %s\n",reg->name); - - } - - return -1; -} -/*-----------------------------------------------------------------* -*-----------------------------------------------------------------*/ -void assignFixedRegisters(set *regset) -{ - regs *reg; - - for (reg = setFirstItem(regset) ; reg ; - reg = setNextItem(regset)) { - - if(reg->isFixed) - assignRegister(reg,0); - } - + return ((address == CONFIG_WORD_ADDRESS) + || (address == CONFIG2_WORD_ADDRESS)); } /*-----------------------------------------------------------------* -*-----------------------------------------------------------------*/ -void assignRelocatableRegisters(set *regset, int used) -{ - - regs *reg; - int address = 0; - - for (reg = setFirstItem(regset) ; reg ; - reg = setNextItem(regset)) { - - //fprintf(stdout,"assigning %s (%d) isFixed=%d, wasUsed=%d\n",reg->name,reg->size,reg->isFixed,reg->wasUsed); - - if((!reg->isExtern) && (!reg->isFixed) && ( used || reg->wasUsed)) { - /* If register have been reused then shall not print it a second time. */ - set *s; - int done = 0; - for (s = regset; s; s = s->next) { - regs *r; - r = s->item; - if (r == reg) - break; - if((!r->isFixed) && ( used || r->wasUsed)) { - if (r->rIdx == reg->rIdx) { - reg->address = r->address; - done = 1; - break; - } - } - } - if (!done) - address = assignRegister(reg,address); - } - } - -} - -/* Keep track of whether we found an assignment to the __config words. */ -static int pic14_hasSetConfigWord = 0; - -/*-----------------------------------------------------------------* - * void assignConfigWordValue(int address, int value) + * void pic14_assignConfigWordValue(int address, int value) * * Most midrange PICs have one config word at address 0x2007. * Newer PIC14s have a second config word at address 0x2008. @@ -948,33 +624,6 @@ void pic14_assignConfigWordValue(int address, int value) pic14_hasSetConfigWord = 1; } -/*-----------------------------------------------------------------* - * int pic14_emitConfigWord (FILE * vFile) - * - * Emit the __config directives iff we found a previous assignment - * to the config word. - *-----------------------------------------------------------------*/ -extern char *iComments2; -int pic14_emitConfigWord (FILE * vFile) -{ - if (pic14_hasSetConfigWord) - { - fprintf (vFile, "%s", iComments2); - fprintf (vFile, "; config word \n"); - fprintf (vFile, "%s", iComments2); - if (pic14_getHasSecondConfigReg()) - { - fprintf (vFile, "\t__config _CONFIG1, 0x%x\n", pic14_getConfigWord(0x2007)); - fprintf (vFile, "\t__config _CONFIG2, 0x%x\n", pic14_getConfigWord(0x2008)); - } - else - fprintf (vFile, "\t__config 0x%x\n", pic14_getConfigWord(0x2007)); - - return 1; - } - return 0; -} - /*-----------------------------------------------------------------* * int pic14_getConfigWord(int address) * @@ -982,7 +631,7 @@ int pic14_emitConfigWord (FILE * vFile) * *-----------------------------------------------------------------*/ -int pic14_getConfigWord(int address) +static int pic14_getConfigWord(int address) { switch (address) { @@ -997,20 +646,11 @@ int pic14_getConfigWord(int address) } } -/*-----------------------------------------------------------------* -* -*-----------------------------------------------------------------*/ -unsigned pic14_getMaxRam(void) -{ - return pic->defMaxRAMaddrs; -} - - /*-----------------------------------------------------------------* * int getHasSecondConfigReg(void) - check if the device has a * second config register, rather than just one. *-----------------------------------------------------------------*/ -int pic14_getHasSecondConfigReg(void) +static int pic14_getHasSecondConfigReg(void) { if(!pic) return 0; @@ -1019,29 +659,144 @@ int pic14_getHasSecondConfigReg(void) } /*-----------------------------------------------------------------* - * Query the size of the sharebank of the selected device. - * FIXME: Currently always returns 16. + * int pic14_emitConfigWord (FILE * vFile) + * + * Emit the __config directives iff we found a previous assignment + * to the config word. *-----------------------------------------------------------------*/ -int pic14_getSharebankSize(void) +int pic14_emitConfigWord (FILE * vFile) { - return 16; + if (pic14_hasSetConfigWord) + { + fprintf (vFile, "%s", iComments2); + fprintf (vFile, "; config word \n"); + fprintf (vFile, "%s", iComments2); + if (pic14_getHasSecondConfigReg()) + { + fprintf (vFile, "\t__config _CONFIG1, 0x%x\n", pic14_getConfigWord(0x2007)); + fprintf (vFile, "\t__config _CONFIG2, 0x%x\n", pic14_getConfigWord(0x2008)); + } + else + fprintf (vFile, "\t__config 0x%x\n", pic14_getConfigWord(0x2007)); + + return 1; + } + return 0; } /*-----------------------------------------------------------------* - * Query the highest byte address occupied by the sharebank of the - * selected device. - * FIXME: Currently always returns 0x7f. - * THINK: Might not be needed, if we assign all shareable objects to - * a `udata_shr' section and let the linker do the rest... - * Tried it, but yields `no target memory available' for pic16f877... + * True iff the device has memory aliased in every bank. + * If true, low and high will be set to the low and high address + * occupied by the (last) sharebank found. *-----------------------------------------------------------------*/ -int pic14_getSharebankAddress(void) +static int pic14_hasSharebank(int *low, int *high, int *size) +{ + memRange *r; + + assert(pic); + r = pic->ram; + + while (r) { + //fprintf (stderr, "%s: region %x..%x, bank %x, alias %x, pic->bankmask %x, min_size %d\n", __FUNCTION__, r->start_address, r->end_address, r->bank, r->alias, pic->bankMask, size ? *size : 0); + // find sufficiently large shared region + if ((r->alias == pic->bankMask) + && (r->end_address != r->start_address) // ignore SFRs + && (!size || (*size <= (r->end_address - r->start_address + 1)))) + { + if (low) *low = r->start_address; + if (high) *high = r->end_address; + if (size) *size = r->end_address - r->start_address + 1; + return 1; + } // if + r = r->next; + } // while + + if (low) *low = 0x0; + if (high) *high = 0x0; + if (size) *size = 0x0; + //fprintf (stderr, "%s: no shared bank found\n", __FUNCTION__); + return 0; +} + +/* + * True iff the memory region [low, high] is aliased in all banks. + */ +static int pic14_isShared(int low, int high) +{ + memRange *r; + + assert(pic); + r = pic->ram; + + while (r) { + //fprintf (stderr, "%s: region %x..%x, bank %x, alias %x, pic->bankmask %x\n", __FUNCTION__, r->start_address, r->end_address, r->bank, r->alias, pic->bankMask); + if ((r->alias == pic->bankMask) && (r->start_address <= low) && (r->end_address >= high)) { + return 1; + } // if + r = r->next; + } // while + + return 0; +} + +/* + * True iff all RAM is aliased in all banks (no BANKSELs required except for + * SFRs). + */ +int pic14_allRAMShared(void) { - int sharebankAddress = 0x7f; - /* If total RAM is less than 0x7f as with 16f84 then reduce - * sharebankAddress to fit */ - if ((unsigned)sharebankAddress > pic14_getMaxRam()) - sharebankAddress = (int)pic14_getMaxRam(); - return sharebankAddress; + memRange *r; + + assert(pic); + r = pic->ram; + + while (r) { + if (r->alias != pic->bankMask) return 0; + r = r->next; + } // while + + return 1; } +/* + * True iff the pseudo stack is a sharebank --> let linker place it. + * [low, high] denotes a size byte long block of (shared or banked) + * memory to be used. + */ +int pic14_getSharedStack(int *low, int *high, int *size) +{ + int haveShared; + int l, h, s; + + s = options.stack_size ? options.stack_size : 0x10; + haveShared = pic14_hasSharebank(&l, &h, &s); + if ((options.stack_loc != 0) || !haveShared) + { + // sharebank not available or not to be used + s = options.stack_size ? options.stack_size : 0x10; + l = options.stack_loc ? options.stack_loc : 0x20; + h = l + s - 1; + if (low) *low = l; + if (high) *high = h; + if (size) *size = s; + // return 1 iff [low, high] is present in all banks + //fprintf(stderr, "%s: low %x, high %x, size %x, shared %d\n", __FUNCTION__, l, h, s, pic14_isShared(l, h)); + return (pic14_isShared(l, h)); + } else { + // sharebanks available for use by the stack + if (options.stack_size) s = options.stack_size; + else if (!s || s > 16) s = 16; // limit stack to 16 bytes in SHAREBANK + + // provide addresses for sharebank + if (low) *low = l; + if (high) *high = l + s - 1; + if (size) *size = s; + //fprintf(stderr, "%s: low %x, high %x, size %x, shared 1\n", __FUNCTION__, l, h, s); + return 1; + } +} + +PIC_device * pic14_getPIC(void) +{ + return pic; +}