-------------------------------------------------------------------------*/
#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
#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
-#else
-#define STRCASECMP strcasecmp
-#endif
-
-static PIC_device Pics[] = {
- {
- {"p16f627", "16f627", "pic16f627", "f627"}, /* processor name */
- (memRange *)NULL,
- (memRange *)NULL,
- 0, /* max ram address (calculated) */
- 0x80, /* Bank Mask */
- },
-
- {
- {"p16f628", "16f628", "pic16f628", "f628"},
- (memRange *)NULL,
- (memRange *)NULL,
- 0,
- 0x80,
- },
-
- {
- {"p16f84", "16f84", "pic16f84", "f84"},
- (memRange *)NULL,
- (memRange *)NULL,
- 0,
- 0x80,
- },
-
- {
- {"p16f873", "16f873", "pic16f873", "f873"},
- (memRange *)NULL,
- (memRange *)NULL,
- 0,
- 0x180,
- },
-
- {
- {"p16f877", "16f877", "pic16f877", "f877"},
- (memRange *)NULL,
- (memRange *)NULL,
- 0,
- 0x180,
- },
-
- {
- {"p16f819", "16f819", "pic16f819", "f819"},
- (memRange *)NULL,
- (memRange *)NULL,
- 0,
- 0x80,
- },
-
-};
-
-static int num_of_supported_PICS = sizeof(Pics)/sizeof(PIC_device);
+extern int Gstack_base_addr;
+extern int Gstack_size;
-#define DEFAULT_PIC "f877"
+#define MAX_PICLIST 200
+static PIC_device *Pics[MAX_PICLIST];
+static int num_of_supported_PICS = 0;
static PIC_device *pic=NULL;
-AssignedMemory *finalMapping=NULL;
+int maxRAMaddress = 0;
#define CONFIG_WORD_ADDRESS 0x2007
+#define CONFIG2_WORD_ADDRESS 0x2008
#define DEFAULT_CONFIG_WORD 0x3fff
+#define DEFAULT_CONFIG2_WORD 0x3ffc
+
+#define DEVICE_FILE_NAME "pic14devices.txt"
+#define PIC14_STRING_LEN 256
+#define SPLIT_WORDS_MAX 16
static unsigned int config_word = DEFAULT_CONFIG_WORD;
+static unsigned int config2_word = DEFAULT_CONFIG2_WORD;
+static memRange *rangeRAM = NULL;
+
-void addMemRange(memRange *r, int type)
+/* parse a value from the configuration file */
+static int parse_config_value(char *str)
{
- int i;
- int alias = r->alias;
+ 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 (pic->maxRAMaddress < 0) {
- fprintf(stderr, "missing \"#pragma maxram\" setting\n");
- return;
- }
- do {
- for (i=r->start_address; i<= r->end_address; i++) {
- if ((i|alias) <= pic->maxRAMaddress) {
- 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;
+/* split a line into words */
+static int split_words(char result_word[SPLIT_WORDS_MAX][PIC14_STRING_LEN], 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++;
}
- } else {
- fprintf(stderr, "WARNING: %s:%s memory at 0x%x is beyond max ram = 0x%x\n",
- __FILE__,__FUNCTION__,(i|alias), pic->maxRAMaddress);
- }
- }
+
+ return num_words;
+}
- /* Decrement alias */
- if (alias) {
- alias -= ((alias & (alias - 1)) ^ alias);
- } else {
- alias--;
- }
- } while (alias >= 0);
+/* remove annoying prefixes from the processor name */
+static char *sanitise_processor_name(char *name)
+{
+ char *proc_pos = name;
+
+ if (name == NULL)
+ return NULL;
+
+ if (STRNCASECMP(proc_pos, "pic", 3) == 0)
+ proc_pos += 3;
+
+ else if (tolower(*proc_pos) == 'p')
+ proc_pos += 1;
+
+ return proc_pos;
}
-void setMaxRAM(int size)
-{
- int i;
- pic->maxRAMaddress = size;
- if (pic->maxRAMaddress < 0) {
- fprintf(stderr, "invalid \"#pragma maxram 0x%x\" setting\n",
- pic->maxRAMaddress);
- return;
- }
+/* 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)
+{
+ 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;
+
+ new_pic->ram = rangeRAM;
+
+ Pics[num_of_supported_PICS] = new_pic;
+ num_of_supported_PICS++;
+
+ return new_pic;
+}
- finalMapping = Safe_calloc(1+pic->maxRAMaddress,
- sizeof(AssignedMemory));
- /* Now initialize the finalMapping array */
+/* 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;
+ }
- for(i=0; i<=pic->maxRAMaddress; i++) {
- finalMapping[i].reg = NULL;
- finalMapping[i].isValid = 0;
- }
+ 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;
+ }
}
-/*-----------------------------------------------------------------*
- *-----------------------------------------------------------------*/
-int isREGinBank(regs *reg, int bank)
+/* 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;
+ }
- if(!reg || !pic)
- return 0;
+ 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;
+}
- if(((reg->address | reg->alias) & pic->bankMask & bank) == bank)
- return 1;
+extern set *includeDirsSet;
+extern set *userIncDirsSet;
+extern set *libDirsSet;
+extern set *libPathsSet;
- return 0;
+/* 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)
+{
+ 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;
}
-/*-----------------------------------------------------------------*
- *-----------------------------------------------------------------*/
-int REGallBanks(regs *reg)
+void setMaxRAM(int size)
{
-
- if(!reg || !pic)
- return 0;
-
- return ((reg->address | reg->alias) & pic->bankMask);
-
+ maxRAMaddress = size;
+
+ if (maxRAMaddress < 0) {
+ fprintf(stderr, "invalid maxram 0x%x setting in %s\n",
+ maxRAMaddress, DEVICE_FILE_NAME);
+ return;
+ }
}
/*-----------------------------------------------------------------*
- *-----------------------------------------------------------------*/
-
-/*
- * dump_map -- debug stuff
- */
+*-----------------------------------------------------------------*/
-void dump_map(void)
+int isREGinBank(regs *reg, int bank)
{
- int i;
-
- for(i=0; i<=pic->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(!reg || !pic)
+ return 0;
+
+ if((int)((reg->address | reg->alias) & pic->bankMask & bank) == bank)
+ return 1;
+
+ return 0;
}
-void dump_sfr(FILE *of)
+/*-----------------------------------------------------------------*
+*-----------------------------------------------------------------*/
+int REGallBanks(regs *reg)
{
-
- int start=-1;
- int addr=0;
- int bank_base;
- static int udata_flag=0;
-
- //dump_map(); /* display the register map */
- //fprintf(stdout,";dump_sfr \n");
- if (pic->maxRAMaddress < 0) {
- fprintf(stderr, "missing \"#pragma maxram\" setting\n");
- return;
- }
-
- 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)) {
-
- fprintf(of,"%s\tres\t%i\n",
- finalMapping[start].reg->name,
- finalMapping[start].reg->size);
-
- finalMapping[start].reg->isEmitted = 1;
- }
- }
-
- start = -1;
- }
-
- }
-
- addr++;
-
- } while(addr <= pic->maxRAMaddress);
-
-
+
+ if(!reg || !pic)
+ return 0;
+
+ return ((reg->address | reg->alias) & pic->bankMask);
+
}
/*-----------------------------------------------------------------*
* 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, int list_alias)
+void list_valid_pics(int ncols)
{
- int col,longest;
- int i,j,k,l;
-
- if(list_alias)
- list_alias = sizeof(Pics[0].name) / sizeof(Pics[0].name[0]);
-
- /* decrement the column number if it's greater than zero */
- ncols = (ncols > 1) ? ncols-1 : 4;
-
- /* Find the device with the longest name */
- for(i=0,longest=0; i<num_of_supported_PICS; i++) {
- for(j=0; j<=list_alias; j++) {
- k = strlen(Pics[i].name[j]);
- if(k>longest)
- longest = k;
- }
- }
-
- col = 0;
-
- for(i=0; i < num_of_supported_PICS; i++) {
- j = 0;
- do {
-
- fprintf(stderr,"%s", Pics[i].name[j]);
- if(col<ncols) {
- l = longest + 2 - strlen(Pics[i].name[j]);
- for(k=0; k<l; k++)
- fputc(' ',stderr);
-
- col++;
+ int col=0,longest;
+ int i,k,l;
+
+ if (num_of_supported_PICS == 0)
+ find_device(NULL); /* load all the definitions */
+
+ /* decrement the column number if it's greater than zero */
+ ncols = (ncols > 1) ? ncols-1 : 4;
+
+ /* Find the device with the longest name */
+ for(i=0,longest=0; i<num_of_supported_PICS; i++) {
+ k = strlen(Pics[i]->name);
+ if(k>longest)
+ longest = k;
+ }
+
+#if 1
+ /* heading */
+ fprintf(stderr, "\nPIC14 processors and their characteristics:\n\n");
+ fprintf(stderr, " processor");
+ for(k=0; k<longest-1; k++)
+ fputc(' ',stderr);
+ fprintf(stderr, "program RAM EEPROM I/O\n");
+ fprintf(stderr, "-----------------------------------------------------\n");
+
+ for(i=0; i < num_of_supported_PICS; i++) {
+ fprintf(stderr," %s", Pics[i]->name);
+ l = longest + 2 - strlen(Pics[i]->name);
+ for(k=0; k<l; k++)
+ fputc(' ',stderr);
+
+ fprintf(stderr, " ");
+ if (Pics[i]->programMemSize % 1024 == 0)
+ fprintf(stderr, "%4dK", Pics[i]->programMemSize / 1024);
+ else
+ fprintf(stderr, "%5d", Pics[i]->programMemSize);
+
+ fprintf(stderr, " %5d %5d %4d\n",
+ Pics[i]->dataMemSize, Pics[i]->eepromMemSize, Pics[i]->ioPins);
+ }
- } else {
- fputc('\n',stderr);
col = 0;
- }
-
- } while(++j<list_alias);
-
- }
- if(col != ncols)
- fputc('\n',stderr);
-
+
+ fprintf(stderr, "\nPIC14 processors supported:\n");
+ for(i=0; i < num_of_supported_PICS; i++) {
+
+ fprintf(stderr,"%s", Pics[i]->name);
+ if(col<ncols) {
+ l = longest + 2 - strlen(Pics[i]->name);
+ for(k=0; k<l; k++)
+ fputc(' ',stderr);
+
+ col++;
+
+ } else {
+ fputc('\n',stderr);
+ col = 0;
+ }
+
+ }
+#endif
+ if(col != 0)
+ fputc('\n',stderr);
}
/*-----------------------------------------------------------------*
- *
- *-----------------------------------------------------------------*/
-PIC_device *find_device(char *name)
+*
+*-----------------------------------------------------------------*/
+PIC_device *init_pic(char *pic_type)
{
-
- int i,j;
-
- if(!name)
- return NULL;
-
- for(i = 0; i<num_of_supported_PICS; i++) {
-
- for(j=0; j<PROCESSOR_NAMES; j++)
- if(!STRCASECMP(Pics[i].name[j], name) )
- return &Pics[i];
- }
-
- /* not found */
- return NULL;
+ char long_name[PIC14_STRING_LEN];
+
+ pic = find_device(pic_type);
+
+ if (pic == NULL) {
+ /* check for shortened "16xxx" form */
+ sprintf(long_name, "16%s", pic_type);
+ pic = find_device(long_name);
+ if (pic == NULL) {
+ if(pic_type != NULL && pic_type[0] != '\0')
+ fprintf(stderr, "'%s' was not found.\n", pic_type);
+ else
+ fprintf(stderr, "No processor has been specified (use -pPROCESSOR_NAME)\n");
+
+ list_valid_pics(7);
+ exit(1);
+ }
+ }
+ return pic;
}
/*-----------------------------------------------------------------*
- *
- *-----------------------------------------------------------------*/
-void init_pic(char *pic_type)
+*
+*-----------------------------------------------------------------*/
+int picIsInitialized(void)
{
- pic = find_device(pic_type);
-
- if(!pic) {
- if(pic_type)
- fprintf(stderr, "'%s' was not found.\n", pic_type);
- else
- fprintf(stderr, "No processor has been specified (use -pPROCESSOR_NAME)\n");
-
- fprintf(stderr,"Valid devices are:\n");
-
- list_valid_pics(4,0);
- exit(1);
- }
-
- pic->maxRAMaddress = -1;
+ if(pic && maxRAMaddress > 0)
+ return 1;
+
+ return 0;
+
}
/*-----------------------------------------------------------------*
- *
- *-----------------------------------------------------------------*/
-int picIsInitialized(void)
+* char *processor_base_name(void) - Include file is derived from this.
+*-----------------------------------------------------------------*/
+char *processor_base_name(void)
{
- if(pic && pic->maxRAMaddress > 0)
- return 1;
-
- return 0;
-
+
+ if(!pic)
+ return NULL;
+
+ return pic->name;
}
/*-----------------------------------------------------------------*
- * char *processor_base_name(void) - Include file is derived from this.
- *-----------------------------------------------------------------*/
-char *processor_base_name(void)
+*-----------------------------------------------------------------*/
+int validAddress(int address, int reg_size)
{
+ 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;
+
+ return 1;
+}
- if(!pic)
- return NULL;
+#if 0
+/* The following code should be (and is) implemented in the linker. */
- return pic->name[0];
+/*-----------------------------------------------------------------*
+*-----------------------------------------------------------------*/
+void mapRegister(regs *reg)
+{
+
+ unsigned i;
+ int alias;
+
+ if(!reg || !reg->size) {
+ 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; i<reg->size; i++) {
+
+ assert(reg->address >= 0 && reg->address < maxRAMaddress);
+
+ 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 isSFR(int address)
+/*-----------------------------------------------------------------*
+*-----------------------------------------------------------------*/
+int assignRegister(regs *reg, int start_address)
{
-
- if( (address > pic->maxRAMaddress) || !finalMapping[address].isSFR)
- return 0;
-
- return 1;
-
+ 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 (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;
}
/*-----------------------------------------------------------------*
- *-----------------------------------------------------------------*/
-int validAddress(int address, int reg_size)
+*-----------------------------------------------------------------*/
+void assignFixedRegisters(set *regset)
{
- int i;
-
- if (pic->maxRAMaddress < 0) {
- fprintf(stderr, "missing \"#pragma maxram\" setting\n");
- return 0;
- }
- // fprintf(stderr, "validAddress: Checking 0x%04x\n",address);
- if(address > pic->maxRAMaddress)
- return 0;
-
- for (i=0; i<reg_size; i++)
- if(!finalMapping[address + i].isValid ||
- finalMapping[address+i].reg ||
- finalMapping[address+i].isSFR )
- return 0;
-
- return 1;
+ regs *reg;
+
+ for (reg = setFirstItem(regset) ; reg ;
+ reg = setNextItem(regset)) {
+
+ if(reg->isFixed)
+ assignRegister(reg,0);
+ }
+
}
/*-----------------------------------------------------------------*
- *-----------------------------------------------------------------*/
-void mapRegister(regs *reg)
+*-----------------------------------------------------------------*/
+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);
+ }
+ }
+
+}
+#endif
- int i;
- int alias;
-
- if(!reg || !reg->size) {
- fprintf(stderr,"WARNING: %s:%s:%d Bad register\n",__FILE__,__FUNCTION__,__LINE__);
- return;
- }
-
- if (pic->maxRAMaddress < 0) {
- fprintf(stderr, "missing \"#pragma maxram\" setting\n");
- return;
- }
-
- for(i=0; i<reg->size; 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);
+/* Keep track of whether we found an assignment to the __config words. */
+static int pic14_hasSetConfigWord = 0;
- reg->isMapped = 1;
+/*-----------------------------------------------------------------*
+ * void 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.
+ * This routine will assign values to those addresses.
+ *
+ *-----------------------------------------------------------------*/
+void pic14_assignConfigWordValue(int address, int value)
+{
+ if (CONFIG_WORD_ADDRESS == address)
+ config_word = value;
+
+ else if (CONFIG2_WORD_ADDRESS == address)
+ config2_word = value;
+
+ //fprintf(stderr,"setting config word 0x%x to 0x%x\n", address, value);
+ pic14_hasSetConfigWord = 1;
}
/*-----------------------------------------------------------------*
+ * int pic14_emitConfigWord (FILE * vFile)
+ *
+ * Emit the __config directives iff we found a previous assignment
+ * to the config word.
*-----------------------------------------------------------------*/
-int assignRegister(regs *reg, int start_address)
+extern char *iComments2;
+int pic14_emitConfigWord (FILE * vFile)
{
- 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;
- }
-
- //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<=pic->maxRAMaddress; i++) {
-
- if (validAddress(i,reg->size)) {
- reg->address = i;
- mapRegister(reg);
- return i;
- }
+ 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));
- fprintf(stderr, "WARNING: No more RAM available for %s\n",reg->name);
-
+ return 1;
}
-
- return -1;
+ return 0;
}
/*-----------------------------------------------------------------*
+ * int pic14_getConfigWord(int address)
+ *
+ * Get the current value of a config word.
+ *
*-----------------------------------------------------------------*/
-void assignFixedRegisters(set *regset)
+
+int pic14_getConfigWord(int address)
{
- regs *reg;
+ switch (address)
+ {
+ case CONFIG_WORD_ADDRESS:
+ return config_word;
+
+ case CONFIG2_WORD_ADDRESS:
+ return config2_word;
+
+ default:
+ return 0;
+ }
+}
- for (reg = setFirstItem(regset) ; reg ;
- reg = setNextItem(regset)) {
+/*-----------------------------------------------------------------*
+*
+*-----------------------------------------------------------------*/
+unsigned pic14_getMaxRam(void)
+{
+ return pic->defMaxRAMaddrs;
+}
- if(reg->isFixed)
- assignRegister(reg,0);
- }
+/*-----------------------------------------------------------------*
+* int getHasSecondConfigReg(void) - check if the device has a
+* second config register, rather than just one.
+*-----------------------------------------------------------------*/
+int pic14_getHasSecondConfigReg(void)
+{
+ if(!pic)
+ return 0;
+ else
+ return pic->hasSecondConfigReg;
}
/*-----------------------------------------------------------------*
+ * 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.
*-----------------------------------------------------------------*/
-void assignRelocatableRegisters(set *regset, int used)
+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;
+}
- regs *reg;
- int address = 0;
-
- for (reg = setFirstItem(regset) ; reg ;
- reg = setNextItem(regset)) {
+/*
+ * True iff the memory region [low, high] is aliased in all banks.
+ */
+int pic14_isShared(int low, int high)
+{
+ memRange *r;
- //fprintf(stdout,"assigning %s isFixed=%d, wasUsed=%d\n",reg->name,reg->isFixed,reg->wasUsed);
+ assert(pic);
+ r = pic->ram;
- if((!reg->isFixed) && ( used || reg->wasUsed))
- address = assignRegister(reg,address);
-
- }
+ 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;
}
-
-/*-----------------------------------------------------------------*
- * void assignConfigWordValue(int address, int value)
- *
- * All midrange PICs have one config word at address 0x2007.
- * This routine will assign a value to that address.
- *
- *-----------------------------------------------------------------*/
-
-void assignConfigWordValue(int address, int value)
+/*
+ * True iff all RAM is aliased in all banks (no BANKSELs required except for
+ * SFRs).
+ */
+int pic14_allRAMShared(void)
{
- if(CONFIG_WORD_ADDRESS == address)
- config_word = value;
+ memRange *r;
- //fprintf(stderr,"setting config word to 0x%x\n",value);
+ assert(pic);
+ r = pic->ram;
+ while (r) {
+ if (r->alias != pic->bankMask) return 0;
+ r = r->next;
+ } // while
+
+ return 1;
}
-/*-----------------------------------------------------------------*
- * int getConfigWord(int address)
- *
- * Get the current value of the config word.
- *
- *-----------------------------------------------------------------*/
-int getConfigWord(int address)
+/*
+ * 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)
{
- if(CONFIG_WORD_ADDRESS == address)
- return config_word;
-
- else
- return 0;
+ 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;
}
projects / fw / sdcc / blobdiff