Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-------------------------------------------------------------------------*/
-#include <stdio.h>
-
-#include "common.h" // Include everything in the SDCC src directory
-#include "newalloc.h"
-
-
-#include "pcode.h"
-#include "ralloc.h"
#include "device.h"
-#if defined(__BORLANDC__) || defined(_MSC_VER)
-#define STRCASECMP stricmp
-#else
-#define STRCASECMP strcasecmp
-#endif
-
-/* 16F627 */
-memRange p16f627_mem[] = {
- {0x20, 0x6f, 0x00, 0},
- {0xa0, 0xef, 0x00, 1},
- {0x120, 0x14f, 0x00, 2},
- {0x70, 0x7f, 0x180, 0},
- {-1, -1, -1, -1} /* end indicator */
-};
-memRange p16f627_sfr[] = {
- {0x00, 0x00, 0x180, 0},
- {0x01, 0x01, 0x100, 0},
- {0x02, 0x04, 0x180, 0},
- {0x05, 0x05, 0x000, 0},
- {0x06, 0x06, 0x100, 0},
- {0x81, 0x81, 0x100, 1},
- {0x85, 0x85, 0x000, 1},
- {0x86, 0x86, 0x100, 1},
- {0x0a, 0x0b, 0x180, 0},
- {0x0c, 0x0c, 0x000, 0},
- {0x0e, 0x12, 0x000, 0},
- {0x15, 0x1a, 0x000, 0},
- {0x1f, 0x1f, 0x000, 0},
- {0x8e, 0x8e, 0x000, 1},
- {0x92, 0x92, 0x000, 1},
- {0x98, 0x9d, 0x000, 1},
- {0x9f, 0x9f, 0x000, 1},
-
- {-1, -1, -1, -1} /* end indicator */
-};
-
-/* 16F84 */
-memRange p16f84_mem[] = {
- {0x0c, 0x4f, 0x80, 0},
- {-1, -1, -1, -1} /* end indicator */
-};
-memRange p16f84_sfr[] = {
- {0x01, 0x01, 0x00, 0},
- {0x02, 0x04, 0x80, 0},
- {0x05, 0x06, 0x00, 0},
- {0x81, 0x81, 0x00, 1},
- {0x85, 0x86, 0x00, 1},
- {0x08, 0x09, 0x00, 0},
- {0x88, 0x89, 0x00, 1},
- {0x0a, 0x0b, 0x80, 0},
- {-1, -1, -1, -1} /* end indicator */
-};
-
-/* 16F877 */
-memRange p16f877_mem[] = {
- {0x20, 0x6f, 0x00, 0},
- {0xa0, 0xef, 0x00, 1},
- {0x110, 0x16f, 0x00, 2},
- {0x190, 0x1ef, 0x00, 3},
- {0x70, 0x7f, 0x180, 0},
- {-1, -1, -1, -1} /* end indicator */
-};
-memRange p16f877_sfr[] = {
- {0x00, 0x00, 0x180, 0},
- {0x01, 0x01, 0x100, 0},
- {0x02, 0x04, 0x180, 0},
- {0x05, 0x05, 0x000, 0},
- {0x85, 0x85, 0x000, 1},
- {0x81, 0x81, 0x100, 1},
- {0x06, 0x06, 0x100, 0},
- {0x86, 0x86, 0x100, 1},
- {0x07, 0x09, 0x000, 0},
- {0x87, 0x89, 0x000, 1},
- {0x0a, 0x0b, 0x180, 0},
- {0x0c, 0x1f, 0x000, 0},
- {0x8c, 0x8e, 0x000, 1},
- {0x91, 0x94, 0x000, 1},
- {0x98, 0x99, 0x000, 1},
- {0x9e, 0x9f, 0x000, 1},
- {0x10c, 0x10f, 0x000, 2},
- {0x18c, 0x18f, 0x000, 3},
-
- {-1, -1, -1, -1} /* end indicator */
-};
-
-/* 16F873 */
-memRange p16f873_mem[] = {
- {0x20, 0x7f, 0x100, 0},
- {0xa0, 0xff, 0x100, 1},
- {-1, -1, -1, -1} /* end indicator */
-};
-memRange p16f873_sfr[] = {
- {0x00, 0x00, 0x180, 0},
- {0x01, 0x01, 0x100, 0},
- {0x02, 0x04, 0x180, 0},
- {0x05, 0x05, 0x000, 0},
- {0x85, 0x85, 0x000, 1},
- {0x81, 0x81, 0x100, 1},
- {0x06, 0x06, 0x100, 0},
- {0x86, 0x86, 0x100, 1},
- {0x07, 0x09, 0x000, 0},
- {0x87, 0x89, 0x000, 1},
- {0x0a, 0x0b, 0x180, 0},
- {0x0c, 0x1f, 0x000, 0},
- {0x8c, 0x8e, 0x000, 1},
- {0x91, 0x94, 0x000, 1},
- {0x98, 0x99, 0x000, 1},
- {0x9e, 0x9f, 0x000, 1},
- {0x10c, 0x10f, 0x000, 2},
- {0x18c, 0x18f, 0x000, 3},
-
- {-1, -1, -1, -1} /* end indicator */
-};
-
-static PIC_device Pics[] = {
- {
- {"p16f627", "16f627", "pic16f627", "f627"}, /* processor name */
- p16f627_mem, /* ram mem map */
- p16f627_sfr, /* sfr mem map */
- 0, /* max ram address (calculated) */
- 0x80, /* Bank Mask */
- },
-
- {
- {"p16f628", "16f628", "pic16f628", "f628"},
- p16f627_mem,
- p16f627_sfr,
- 0,
- 0x80,
- },
-
- {
- {"p16f84", "16f84", "pic16f84", "f84"},
- p16f84_mem,
- p16f84_sfr,
- 0,
- 0x80,
- },
-
- {
- {"p16f873", "16f873", "pic16f873", "f873"},
- p16f873_mem,
- p16f873_sfr,
- 0,
- 0x180,
- },
-
- {
- {"p16f877", "16f877", "pic16f877", "f877"},
- p16f877_mem,
- p16f877_sfr,
- 0,
- 0x180,
- },
-
-};
-
-static int num_of_supported_PICS = sizeof(Pics)/sizeof(PIC_device);
-
-#define DEFAULT_PIC "f877"
-
-static PIC_device *pic=NULL;
+/*
+ * Imports
+ */
+extern set *includeDirsSet;
+extern set *userIncDirsSet;
+extern set *libDirsSet;
+extern set *libPathsSet;
-AssignedMemory *finalMapping=NULL;
+#define MAX_PICLIST 200
+static PIC_device *Pics[MAX_PICLIST];
+static PIC_device *pic = NULL;
+static int num_of_supported_PICS = 0;
+static 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
+/* 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;
+static memRange *rangeRAM = NULL;
-/*-----------------------------------------------------------------*
- *
- * void addMem(memRange *ranges,int type)
- *
- *
- *-----------------------------------------------------------------*/
-static void addMem(memRange *ranges,int type)
+/* parse a value from the configuration file */
+static int
+parse_config_value (char *str)
{
- memRange *r = ranges;
- int i;
-
- do {
-
- int alias = r->alias;
-
- do {
-
- for(i=r->start_address; i<= r->end_address; i++) {
- if(i <= 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;
- }
- }
-
- /* Decrement alias */
- if(alias)
- alias -= ((alias & (alias - 1)) ^ alias);
- else
- alias--;
-
- } while(alias >= 0);
-
- r++;
-
- } while (r->start_address >= 0);
+ 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" */
}
-/*-----------------------------------------------------------------*
- *-----------------------------------------------------------------*/
-int isREGinBank(regs *reg, int bank)
+/* split a line into words */
+static int
+split_words (char **result_word, char *str)
{
-
- if(!reg || !pic)
- return 0;
-
- if(((reg->address | reg->alias) & pic->bankMask & bank) == bank)
- return 1;
-
- return 0;
+ 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;
}
-/*-----------------------------------------------------------------*
- *-----------------------------------------------------------------*/
-int REGallBanks(regs *reg)
+
+/* remove annoying prefixes from the processor name */
+static char *
+sanitise_processor_name (char *name)
{
+ char *proc_pos = name;
- if(!reg || !pic)
- return 0;
+ if (name == NULL)
+ return NULL;
+
+ if (STRNCASECMP (proc_pos, "pic", 3) == 0)
+ proc_pos += 3;
- return ((reg->address | reg->alias) & pic->bankMask);
+ else if (tolower (*proc_pos) == 'p')
+ proc_pos += 1;
+ return proc_pos;
}
-/*-----------------------------------------------------------------*
- *-----------------------------------------------------------------*/
-static void addMaps(PIC_device *pPic)
+/* 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)
{
- int i;
- memRange *r;
+ PIC_device *new_pic;
+ char *simple_pic_name = sanitise_processor_name (pic_name);
- if(!pPic)
- return;
+ new_pic = Safe_calloc (1, sizeof (PIC_device));
+ new_pic->name = Safe_strdup (simple_pic_name);
+ new_pic->defMaxRAMaddrs = maxram;
+ new_pic->bankMask = bankmsk;
+ new_pic->hasSecondConfigReg = confsiz > 1;
- /* First, find the maximum address */
+ new_pic->programMemSize = program;
+ new_pic->dataMemSize = data;
+ new_pic->eepromMemSize = eeprom;
+ new_pic->ioPins = io;
- r = pPic->ram;
- pPic->maxRAMaddress = 0;
+ new_pic->ram = rangeRAM;
- do {
+ Pics[num_of_supported_PICS] = new_pic;
+ num_of_supported_PICS++;
- if((r->end_address | r->alias) > pPic->maxRAMaddress)
- pPic->maxRAMaddress = r->end_address | r->alias;
-
- r++;
+ return new_pic;
+}
- } while (r->start_address >= 0);
+/* mark some registers as being duplicated across banks */
+static void
+register_map (int num_words, char **word)
+{
+ memRange *r;
+ int pcount;
+
+ if (num_words < 3)
+ {
+ fprintf (stderr, "WARNING: not enough values in %s regmap directive\n",
+ DEVICE_FILE_NAME);
+ return;
+ } // if
+
+ 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
+}
- finalMapping = Safe_calloc(1+pPic->maxRAMaddress, sizeof(AssignedMemory));
+/* define ram areas - may be duplicated across banks */
+static void
+ram_map (int num_words, char **word)
+{
+ memRange *r;
- /* Now initialize the finalMapping array */
+ if (num_words < 4)
+ {
+ fprintf (stderr, "WARNING: not enough values in %s memmap directive\n",
+ DEVICE_FILE_NAME);
+ return;
+ } // if
- for(i=0; i<=pPic->maxRAMaddress; i++) {
- finalMapping[i].reg = NULL;
- finalMapping[i].isValid = 0;
- }
+ r = Safe_calloc (1, sizeof (memRange));
+ //fprintf (stderr, "%s: %s %s %s\n", __FUNCTION__, word[1], word[2], word[3]);
- addMem(pPic->ram,0); /* add general purpose regs to the map */
- addMem(pPic->sfr,1); /* Add SFR's to the memmap */
+ 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;
}
-/*
- * dump_map -- debug stuff
- */
-
-void dump_map(void)
+static void
+setMaxRAM (int size)
{
- 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");
- }
- }
-
+ maxRAMaddress = size;
+
+ if (maxRAMaddress < 0)
+ {
+ fprintf (stderr, "invalid maxram 0x%x setting in %s\n",
+ maxRAMaddress, DEVICE_FILE_NAME);
+ return;
+ } // if
}
-void dump_cblock(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)
{
- int start=-1;
- int addr=0;
- int bank_base;
-
- //dump_map(); /* display the register map */
-
- 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 */
-
- fprintf(of," cblock 0X%04X\t; Bank %d\n",start,finalMapping[start].bank);
-
- for( ; start < addr; start++) {
- if((finalMapping[start].reg) && !finalMapping[start].reg->isEmitted ) {
- fprintf(of,"\t%s",finalMapping[start].reg->name);
-
- /* If this register is aliased in multiple banks, then
- * mangle the variable name with the alias address: */
- if(finalMapping[start].alias & start)
- fprintf(of,"_%x",bank_base);
-
- if(finalMapping[start].instance)
- fprintf(of,"_%d",finalMapping[start].instance);
-
-
- fputc('\n',of);
-
- //finalMapping[start].reg->isEmitted = 1;
- }
- }
-
- fprintf(of," endc\n");
-
- start = -1;
+ 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);
+
+ /* 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;
}
- }
-
- addr++;
-
- } while(addr <= pic->maxRAMaddress);
-
-
+ /* 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;
}
/*-----------------------------------------------------------------*
* 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)
+static 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);
- }
-
-
- addMaps(pic);
-
-
+ if(pic && maxRAMaddress > 0)
+ return 1;
+
+ return 0;
+
}
/*-----------------------------------------------------------------*
- * char *processor_base_name(void) - Include file is derived from this.
- *-----------------------------------------------------------------*/
+* char *processor_base_name(void) - Include file is derived from this.
+*-----------------------------------------------------------------*/
char *processor_base_name(void)
{
-
- if(!pic)
- return NULL;
-
- return pic->name[0];
+
+ if(!pic)
+ return NULL;
+
+ return pic->name;
}
-int isSFR(int address)
+int IS_CONFIG_ADDRESS(int address)
{
- if( (address > pic->maxRAMaddress) || !finalMapping[address].isSFR)
- return 0;
-
- return 1;
-
+ return ((address == CONFIG_WORD_ADDRESS)
+ || (address == CONFIG2_WORD_ADDRESS));
}
-int validAddress(int address, int reg_size)
-{
- int i;
+/*-----------------------------------------------------------------*
+ * 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.
+ * This routine will assign values to those addresses.
+ *
+ *-----------------------------------------------------------------*/
- if(address > pic->maxRAMaddress)
- return 0;
+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;
+}
- for (i=0; i<reg_size; i++)
- if(!finalMapping[address + i].isValid ||
- finalMapping[address+i].reg ||
- finalMapping[address+i].isSFR )
- return 0;
+/*-----------------------------------------------------------------*
+ * int pic14_getConfigWord(int address)
+ *
+ * Get the current value of a config word.
+ *
+ *-----------------------------------------------------------------*/
- return 1;
+static int pic14_getConfigWord(int address)
+{
+ switch (address)
+ {
+ case CONFIG_WORD_ADDRESS:
+ return config_word;
+
+ case CONFIG2_WORD_ADDRESS:
+ return config2_word;
+
+ default:
+ return 0;
+ }
}
-void mapRegister(regs *reg)
+/*-----------------------------------------------------------------*
+* int getHasSecondConfigReg(void) - check if the device has a
+* second config register, rather than just one.
+*-----------------------------------------------------------------*/
+static int pic14_getHasSecondConfigReg(void)
{
-
- int i;
- int alias;
-
- if(!reg || !reg->size) {
- fprintf(stderr,"WARNING: %s:%s:%d Bad register\n",__FILE__,__FUNCTION__,__LINE__);
- 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);
-
- reg->isMapped = 1;
-
+ if(!pic)
+ return 0;
+ else
+ return pic->hasSecondConfigReg;
}
-int assignRegister(regs *reg, int start_address)
+/*-----------------------------------------------------------------*
+ * int pic14_emitConfigWord (FILE * vFile)
+ *
+ * Emit the __config directives iff we found a previous assignment
+ * to the config word.
+ *-----------------------------------------------------------------*/
+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)) {
-
- 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\n");
-
+ return 1;
}
-
- return -1;
+ return 0;
}
-void assignFixedRegisters(set *regset)
+/*-----------------------------------------------------------------*
+ * 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.
+ *-----------------------------------------------------------------*/
+static int pic14_hasSharebank(int *low, int *high, int *size)
{
- regs *reg;
-
- for (reg = setFirstItem(regset) ; reg ;
- reg = setNextItem(regset)) {
-
- if(reg->isFixed)
- assignRegister(reg,0);
- }
-
+ 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;
}
-void assignRelocatableRegisters(set *regset, int used)
+/*
+ * True iff the memory region [low, high] is aliased in all banks.
+ */
+static int pic14_isShared(int low, int high)
{
+ memRange *r;
- regs *reg;
- int address = 0;
-
- for (reg = setFirstItem(regset) ; reg ;
- reg = setNextItem(regset)) {
+ assert(pic);
+ r = pic->ram;
- //fprintf(stdout,"assigning %s isFixed=%d, wasUsed=%d\n",reg->name,reg->isFixed,reg->wasUsed);
-
- 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