#include "newalloc.h"
#include "gen.h"
#include "main.h"
+#include "device.h"
#ifdef WORDS_BIGENDIAN
extern char *iComments1;
extern char *iComments2;
//extern void emitStaticSeg (memmap * map);
+set *pic14_localFunctions = NULL;
extern DEFSETFUNC (closeTmpFiles);
extern DEFSETFUNC (rmTmpFiles);
extern void printChar (FILE * ofile, char *s, int plen);
void pCodeInitRegisters(void);
int getConfigWord(int address);
+int getHasSecondConfigReg(void);
+int pic14_getSharebankSize(void);
+int pic14_getSharebankAddress(void);
char *udata_section_name=0; // FIXME Temporary fix to change udata section name -- VR
+int pic14_hasInterrupt = 0; // Indicates whether to emit interrupt handler or not
/*-----------------------------------------------------------------*/
/* aopLiteral - string from a literal value */
/*-----------------------------------------------------------------*/
-int pic14aopLiteral (value *val, int offset)
+unsigned int pic14aopLiteral (value *val, int offset)
{
union {
float f;
/* Check whether the given reg is shared amongst all .o files of a project.
* This is true for the pseudo stack and WSAVE, SSAVE and PSAVE. */
-int is_shared_address (int addr)
+static int
+is_shared_address (int addr)
{
return ((addr > Gstack_base_addr - 18)
&& (addr <= Gstack_base_addr));
}
int
-is_shared (regs *reg)
+pic14_is_shared (regs *reg)
{
if (!reg) return 0;
return is_shared_address (reg->address);
}
+static int
+is_valid_identifier( const char *name )
+{
+ char a;
+ if (!name) return 0;
+ a = *name;
+
+ /* only accept [a-zA-Z_][a-zA-Z0-9_] */
+ if (!((a >= 'a' && a <= 'z')
+ || (a >= 'A' && a <= 'z')
+ || (a == '_')))
+ return 0;
+
+ name++;
+ while ((a = *name++))
+ {
+ if (!((a >= 'a' && a <= 'z')
+ || (a >= 'A' && a <= 'Z')
+ || (a >= '0' && a <= '9')
+ || (a == '_')))
+ return 0;
+ } // while
+
+ /* valid identifier */
+ return 1;
+}
+
/* set of already emitted symbols; we store only pointers to the emitted
* symbol names so these MUST NO BE CHANGED afterwards... */
static set *symbolsEmitted = NULL;
{
const char *sym;
static unsigned int sec_idx = 0;
+
+ /* workaround: variables declared via `sbit' result in a numeric
+ * identifier (0xHH), EQU'ing them is invalid, so just ignore it.
+ * sbit is heavily used in the inc2h-generated header files!
+ */
+ if (!is_valid_identifier(name))
+ {
+ //fprintf( stderr, "%s:%s:%u: ignored symbol: %s\n", __FILE__, __FUNCTION__, __LINE__, name );
+ return;
+ }
/* check whether the symbol is already defined */
for (sym = (const char *) setFirstItem (symbolsEmitted);
if (!section_type) section_type = "udata";
if (addr != -1)
{
+ /* absolute symbols are handled in pic14_constructAbsMap */
+ /* do nothing */
+#if 0
/* workaround gpasm bug with symbols being EQUated and placed in absolute sections */
- if (is_shared_address (addr))
+ if (1 || !is_shared_address (addr))
{
if (globalize) fprintf (of, "\tglobal\t%s\n", name);
- fprintf (of, "udata_%s_%u\t%s\t0x%04x\n", moduleName, sec_idx++, section_type, addr);
+ fprintf (of, "udata_%s_%u\t%s\t0x%04x\n", moduleName,
+ sec_idx++, "udata_ovr", addr);
fprintf (of, "%s\tres\t%d\n", name, size);
}
else
/* EQUs cannot be exported... */
fprintf (of, "%s\tEQU\t0x%04x\n", name, addr);
}
+#endif
} else {
if (globalize) fprintf (of, "\tglobal\t%s\n", name);
- fprintf (of, "udata_%s_%u\t%s\n", moduleName, sec_idx++, section_type);
+ fprintf (of, "udata_%s_%u\t%s\n", moduleName,
+ sec_idx++, section_type);
fprintf (of, "%s\tres\t%d\n", name, size);
}
}
-
+
+ //if (options.verbose) fprintf (stderr, "%s: emitted %s\n", __FUNCTION__, name);
addSet (&symbolsEmitted, (void *) name);
}
+#define IS_DEFINED_HERE(sym) (!IS_EXTERN(sym->etype))
+extern int IS_CONFIG_ADDRESS( int addr );
+static void
+pic14_constructAbsMap (FILE *ofile)
+{
+ memmap *maps[] = { data, sfr, NULL };
+ int i;
+ hTab *ht = NULL;
+ symbol *sym;
+ set *aliases;
+ int addr, min=-1, max=-1;
+ int size;
+
+ for (i=0; maps[i] != NULL; i++)
+ {
+ for (sym = (symbol *)setFirstItem (maps[i]->syms);
+ sym; sym = setNextItem (maps[i]->syms))
+ {
+ if (IS_DEFINED_HERE(sym) && SPEC_ABSA(sym->etype))
+ {
+ addr = SPEC_ADDR(sym->etype);
+
+ /* handle CONFIG words here */
+ if (IS_CONFIG_ADDRESS( addr ))
+ {
+ //fprintf( stderr, "%s: assignment to CONFIG@0x%x found\n", __FUNCTION__, addr );
+ //fprintf( stderr, "ival: %p (0x%x)\n", sym->ival, (int)list2int( sym->ival ) );
+ if (sym->ival) {
+ pic14_assignConfigWordValue( addr, (int)list2int( sym->ival ) );
+ } else {
+ fprintf( stderr, "ERROR: Symbol %s, which is covering a __CONFIG word must be initialized!\n", sym->name );
+ }
+ continue;
+ }
+
+ if (max == -1 || addr > max) max = addr;
+ if (min == -1 || addr < min) min = addr;
+ //fprintf (stderr, "%s: sym %s @ 0x%x\n", __FUNCTION__, sym->name, addr);
+ aliases = hTabItemWithKey (ht, addr);
+ if (aliases) {
+ /* May not use addSetHead, as we cannot update the
+ * list's head in the hastable `ht'. */
+ addSet (&aliases, sym);
+#if 0
+ fprintf( stderr, "%s: now %d aliases for %s @ 0x%x\n",
+ __FUNCTION__, elementsInSet(aliases), sym->name, addr);
+#endif
+ } else {
+ addSet (&aliases, sym);
+ hTabAddItem (&ht, addr, aliases);
+ } // if
+ } // if
+ } // for sym
+ } // for i
+
+ /* now emit definitions for all absolute symbols */
+ fprintf (ofile, "%s", iComments2);
+ fprintf (ofile, "; absolute symbol definitions\n");
+ fprintf (ofile, "%s", iComments2);
+ for (addr=min; addr <= max; addr++)
+ {
+ size = 1;
+ aliases = hTabItemWithKey (ht, addr);
+ if (aliases && elementsInSet(aliases)) {
+ fprintf (ofile, "udata_abs_%s_%x\tudata_ovr\t0x%04x",
+ moduleName, addr, addr);
+ for (sym = setFirstItem (aliases); sym;
+ sym = setNextItem (aliases))
+ {
+ /* emit STATUS as well as _STATUS, required for SFRs only */
+ fprintf (ofile, "\n%s", sym->name);
+ fprintf (ofile, "\n%s", sym->rname);
+ if (getSize(sym->type) > size) {
+ size = getSize(sym->type);
+ }
+ } // for
+ fprintf (ofile, "\tres\t%d\n", size);
+ } // if
+ } // for i
+
+ /* also emit STK symbols
+ * XXX: This is ugly and fails as soon as devices start to get
+ * differently sized sharebanks, since STK12 will be
+ * required by larger devices but only up to STK03 might
+ * be defined using smaller devices. */
+ fprintf (ofile, "\n");
+ if (!pic14_options.isLibrarySource)
+ {
+ fprintf (ofile, "\tglobal PSAVE\n");
+ fprintf (ofile, "\tglobal SSAVE\n");
+ fprintf (ofile, "\tglobal WSAVE\n");
+ for (i=pic14_getSharebankSize()-4; i >= 0; i--) {
+ fprintf (ofile, "\tglobal STK%02d\n", i);
+ } // for i
+ fprintf (ofile, "sharebank udata_ovr 0x%04x\n",
+ pic14_getSharebankAddress() - pic14_getSharebankSize() + 1);
+ fprintf (ofile, "PSAVE\tres 1\n");
+ fprintf (ofile, "SSAVE\tres 1\n");
+ fprintf (ofile, "WSAVE\tres 1\n");
+ /* fill rest of sharebank with stack STKxx .. STK00 */
+ for (i=pic14_getSharebankSize()-4; i >= 0; i--) {
+ fprintf (ofile, "STK%02d\tres 1\n", i);
+ } // for i
+ } else {
+ /* declare STKxx as extern for all files
+ * except the one containing main() */
+ fprintf (ofile, "\textern PSAVE\n");
+ fprintf (ofile, "\textern SSAVE\n");
+ fprintf (ofile, "\textern WSAVE\n");
+ for (i=pic14_getSharebankSize()-4; i >= 0; i--) {
+ fprintf (ofile, "\textern STK%02d\n", i);
+ } // for i
+ }
+}
+
/*-----------------------------------------------------------------*/
/* emitRegularMap - emit code for maps with no special cases */
/*-----------------------------------------------------------------*/
sym = setNextItem (map->syms)) {
//printf("%s\n",sym->name);
+
+ /* ignore if config word */
+ if (SPEC_ABSA(sym->etype)
+ && IS_CONFIG_ADDRESS(SPEC_ADDR(sym->etype)))
+ continue;
/* if extern then add it into the extern list */
if (IS_EXTERN (sym->etype)) {
!sym->allocreq && sym->level)
continue;
- /* if global variable & not static or extern
+ /* if global variable & not static or extern
and addPublics allowed then add it to the public set */
if ((sym->level == 0 ||
(sym->_isparm && !IS_REGPARM (sym->etype))) &&
addPublics &&
!IS_STATIC (sym->etype))
+ {
+ //fprintf( stderr, "%s: made public %s\n", __FUNCTION__, sym->name );
addSetHead (&publics, sym);
+ }
// PIC code allocates its own registers - so ignore parameter variable generated by processFuncArgs()
if (sym->_isparm)
fprintf (map->oFile, "%s_%d_%d", sym->name, sym->level, sym->block);
}
#endif
+ /* absolute symbols are handled in pic14_constructAbsMap */
+ if (SPEC_ABSA(sym->etype) && IS_DEFINED_HERE(sym))
+ continue;
/* if it has an absolute address then generate
an equate for this no need to allocate space */
- if (SPEC_ABSA (sym->etype))
+ if (0 && SPEC_ABSA (sym->etype))
{
//if (options.debug || sym->level == 0)
//fprintf (map->oFile,"; == 0x%04x\n",SPEC_ADDR (sym->etype));
}
else
{
- emitSymbolToFile (map->oFile, sym->rname, NULL, getSize (sym->type) & 0xffff, -1, 0, 0);
+ emitSymbolToFile (map->oFile,
+ sym->rname,
+ NULL,
+ getSize (sym->type) & 0xffff,
+ SPEC_ABSA(sym->etype)
+ ? SPEC_ADDR(sym->etype)
+ : -1,
+ 0,
+ 0);
/*
{
int i, size;
it is a global variable */
if (sym->ival && sym->level == 0) {
ast *ival = NULL;
-
+
if (IS_AGGREGATE (sym->type))
ival = initAggregates (sym, sym->ival, NULL);
else
static void
pic14emitMaps ()
{
+ pic14_constructAbsMap (sfr->oFile);
/* no special considerations for the following
data, idata & bit & xdata */
pic14emitRegularMap (data, TRUE, TRUE);
pic14emitRegularMap (idata, TRUE, TRUE);
pic14emitRegularMap (bit, TRUE, FALSE);
pic14emitRegularMap (xdata, TRUE, TRUE);
- pic14emitRegularMap (sfr, FALSE, FALSE);
+ pic14emitRegularMap (sfr, TRUE, FALSE);
pic14emitRegularMap (sfrbit, FALSE, FALSE);
pic14emitRegularMap (code, TRUE, FALSE);
pic14emitStaticSeg (statsg);
+ pic14emitStaticSeg (c_abs);
}
/*-----------------------------------------------------------------*/
return;
}
- fprintf (vFile, "%s", iComments2);
- fprintf (vFile, "; config word \n");
- fprintf (vFile, "%s", iComments2);
- fprintf (vFile, "\t__config 0x%x\n", getConfigWord(0x2007));
-
fprintf (vFile, "%s", iComments2);
fprintf (vFile, "; reset vector \n");
fprintf (vFile, "%s", iComments2);
fprintf (vFile, "STARTUP\t%s\n", CODE_NAME); // Lkr file should place section STARTUP at address 0x0
fprintf (vFile, "\tnop\n"); /* first location for used by incircuit debugger */
+ fprintf( vFile, "\tpagesel __sdcc_gsinit_startup\n");
fprintf (vFile, "\tgoto\t__sdcc_gsinit_startup\n");
}
}
+int
+pic14_stringInSet(const char *str, set **world, int autoAdd)
+{
+ char *s;
+
+ if (!str) return 1;
+ assert(world);
+
+ for (s = setFirstItem(*world); s; s = setNextItem(*world))
+ {
+ /* found in set */
+ if (0 == strcmp(s, str)) return 1;
+ }
+
+ /* not found */
+ if (autoAdd) addSet(world, Safe_strdup(str));
+ return 0;
+}
+
+static int
+pic14_emitSymbolIfNew(FILE *file, const char *fmt, const char *sym, int checkLocals)
+{
+ static set *emitted = NULL;
+
+ if (!pic14_stringInSet(sym, &emitted, 1)) {
+ /* sym was not in emittedSymbols */
+ if (!checkLocals || !pic14_stringInSet(sym, &pic14_localFunctions, 0)) {
+ /* sym is not a locally defined function---avoid bug #1443651 */
+ fprintf( file, fmt, sym );
+ return 0;
+ }
+ }
+ return 1;
+}
+
/*-----------------------------------------------------------------*/
/* printExterns - generates extern for external variables */
/*-----------------------------------------------------------------*/
fprintf (afile, "; extern variables in this module\n");
fprintf (afile, "%s", iComments2);
- for (sym = setFirstItem (externs); sym;
- sym = setNextItem (externs))
- fprintf (afile, "\textern %s\n", sym->rname);
+ for (sym = setFirstItem (externs); sym; sym = setNextItem (externs))
+ pic14_emitSymbolIfNew(afile, "\textern %s\n", sym->rname, 1);
}
/*-----------------------------------------------------------------*/
static void
pic14printPublics (FILE * afile)
{
- symbol *sym;
-
- fprintf (afile, "%s", iComments2);
- fprintf (afile, "; publics variables in this module\n");
- fprintf (afile, "%s", iComments2);
-
- for (sym = setFirstItem (publics); sym;
- sym = setNextItem (publics)) {
-
- if(!IS_BITFIELD(sym->type) && ((IS_FUNC(sym->type) || sym->allocreq))) {
- if (!IS_BITVAR(sym->type))
- fprintf (afile, "\tglobal %s\n", sym->rname);
- } else {
- /* Absolute variables are defines in the asm file as equates and thus can not be made global. */
- if (!SPEC_ABSA (sym->etype))
- fprintf (afile, "\tglobal %s\n", sym->rname);
- }
- }
+ symbol *sym;
+
+ fprintf (afile, "%s", iComments2);
+ fprintf (afile, "; publics variables in this module\n");
+ fprintf (afile, "%s", iComments2);
+
+ for (sym = setFirstItem (publics); sym;
+ sym = setNextItem (publics)) {
+
+ if(!IS_BITFIELD(sym->type) && ((IS_FUNC(sym->type) || sym->allocreq))) {
+ if (!IS_BITVAR(sym->type))
+ pic14_emitSymbolIfNew(afile, "\tglobal %s\n", sym->rname, 0);
+ } else {
+ /* Absolute variables are defines in the asm file as equates and thus can not be made global. */
+ /* Not any longer! */
+ //if (!SPEC_ABSA (sym->etype))
+ pic14_emitSymbolIfNew(afile, "\tglobal %s\n", sym->rname, 0);
+ }
+ }
}
/*-----------------------------------------------------------------*/
}
+void
+pic14_emitInterruptHandler (FILE * asmFile)
+{
+ if (pic14_hasInterrupt)
+ {
+
+ fprintf (asmFile, "%s", iComments2);
+ fprintf (asmFile, "; interrupt and initialization code\n");
+ fprintf (asmFile, "%s", iComments2);
+ // Note - for mplink may have to enlarge section vectors in .lnk file
+ // Note: Do NOT name this code_interrupt to avoid nameclashes with
+ // source files's code segment (interrupt.c -> code_interrupt)
+ fprintf (asmFile, "c_interrupt\t%s\t0x4\n", CODE_NAME);
+
+ /* interrupt service routine */
+ fprintf (asmFile, "__sdcc_interrupt\n");
+ copypCode(asmFile, 'I');
+ }
+}
+
/*-----------------------------------------------------------------*/
/* glue - the final glue that hold the whole thing together */
/*-----------------------------------------------------------------*/
{
port->genAssemblerPreamble(asmFile);
}
-
- /* print the extern variables in this module */
- pic14printExterns (asmFile);
+
+ /* Emit the __config directive */
+ pic14_emitConfigWord (asmFile);
/* print the global variables in this module */
pic14printPublics (asmFile);
+ /* print the extern variables in this module */
+ pic14printExterns (asmFile);
+
/* copy the sfr segment */
fprintf (asmFile, "%s", iComments2);
fprintf (asmFile, "; special function registers\n");
/* copy the interrupt vector table */
if (mainf && IFFUNC_HASBODY(mainf->type)) {
copyFile (asmFile, vFile);
-
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; interrupt and initialization code\n");
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "code_interrupt\t%s\t0x4\n", CODE_NAME); // Note - for mplink may have to enlarge section vectors in .lnk file
-
- /* interrupt service routine */
- fprintf (asmFile, "__sdcc_interrupt\n");
- copypCode(asmFile, 'I');
-
+ }
+
+ /* create interupt ventor handler */
+ pic14_emitInterruptHandler (asmFile);
+
+ if (mainf && IFFUNC_HASBODY(mainf->type)) {
/* initialize data memory */
fprintf (asmFile, "code_init\t%s\n", CODE_NAME); // Note - for mplink may have to enlarge section vectors in .lnk file
fprintf (asmFile,"__sdcc_gsinit_startup\n");
projects / fw / sdcc / blobdiff