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
+static set *emitted = NULL;
+int pic14_stringInSet(const char *str, set **world, int autoAdd);
+static void emitSymbolToFile (FILE *of, const char *name, const char *section_type, int size, int addr, int useEQU, int globalize);
+
/*-----------------------------------------------------------------*/
/* aopLiteral - string from a literal value */
/*-----------------------------------------------------------------*/
}
-/* 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. */
-static int
-is_shared_address (int addr)
-{
- return ((addr > Gstack_base_addr - 18)
- && (addr <= Gstack_base_addr));
-}
-
-int
-pic14_is_shared (regs *reg)
-{
- if (!reg) return 0;
- return is_shared_address (reg->address);
-}
-
static int
is_valid_identifier( const char *name )
{
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;
-
-/*-------------------------------------------------------------------*/
-/* emitSymbolToFile - write a symbol definition only if it is not */
-/* already present */
-/*-------------------------------------------------------------------*/
-void
-emitSymbolToFile (FILE *of, const char *name, const char *section_type, int size, int addr, int useEQU, int globalize)
-{
- 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);
- sym;
- sym = (const char *) setNextItem (symbolsEmitted))
- {
- if (!strcmp (sym, name))
- {
- //fprintf (stderr, "%s: already emitted: %s\n", __FUNCTION__, name);
- return;
- }
- } // for
-
- /* new symbol -- define it */
- //fprintf (stderr, "%s: emitting %s (%d)\n", __FUNCTION__, name, size);
- if (useEQU)
- fprintf (of, "%s\tEQU\t0x%04x\n", name, addr);
- else
- {
- /* we place each symbol into a section of its own to allow the linker
- * to distribute the data into all available memory banks */
- 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 (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++, "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, "%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
set *aliases;
int addr, min=-1, max=-1;
int size;
+ PIC_device *pic;
+ int low, high, shared;
for (i=0; maps[i] != NULL; i++)
{
if (getSize(sym->type) > size) {
size = getSize(sym->type);
}
+ if (sym->islocal) {
+ // global symbols must be emitted again as 'global sym->name'
+ pic14_stringInSet(sym->name, &emitted, 1);
+ pic14_stringInSet(sym->rname, &emitted, 1);
+ }
} // for
fprintf (ofile, "\tres\t%d\n", size);
} // if
* required by larger devices but only up to STK03 might
* be defined using smaller devices. */
fprintf (ofile, "\n");
+ shared = pic14_getSharedStack(&low, &high, &size);
if (!pic14_options.isLibrarySource)
{
+ pic = pic14_getPIC();
+
fprintf (ofile, "\tglobal PSAVE\n");
fprintf (ofile, "\tglobal SSAVE\n");
fprintf (ofile, "\tglobal WSAVE\n");
- for (i=pic14_getSharebankSize()-4; i >= 0; i--) {
+ for (i = size - 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);
+
+ // 16f84 has no SHAREBANK (in linkerscript) but memory aliased in two
+ // banks, sigh...
+ if (1 || !shared) {
+ // for single banked devices: use normal, "banked" RAM
+ fprintf (ofile, "sharebank udata_ovr 0x%04X\n", low);
+ } else {
+ // for devices with at least two banks, require a sharebank section
+ fprintf (ofile, "sharebank udata_shr\n");
+ }
fprintf (ofile, "PSAVE\tres 1\n");
fprintf (ofile, "SSAVE\tres 1\n");
- fprintf (ofile, "WSAVE\tres 1\n");
+ fprintf (ofile, "WSAVE\tres 1\n"); // WSAVE *must* be in sharebank (IRQ handlers)
/* fill rest of sharebank with stack STKxx .. STK00 */
- for (i=pic14_getSharebankSize()-4; i >= 0; i--) {
+ for (i = size - 4; i >= 0; i--) {
fprintf (ofile, "STK%02d\tres 1\n", i);
} // for i
} else {
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 = size - 4; i >= 0; i--) {
+ char buffer[128];
+ SNPRINTF(&buffer[0], 127, "STK%02d", i);
+ fprintf (ofile, "\textern %s\n", &buffer[0]);
+ pic14_stringInSet(&buffer[0], &emitted, 1);
} // for i
}
}
pic14emitRegularMap (sfrbit, FALSE, FALSE);
pic14emitRegularMap (code, TRUE, FALSE);
pic14emitStaticSeg (statsg);
+ pic14emitStaticSeg (c_abs);
}
/*-----------------------------------------------------------------*/
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");
}
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)) {
return 1;
}
+/*-------------------------------------------------------------------*/
+/* emitSymbolToFile - write a symbol definition only if it is not */
+/* already present */
+/*-------------------------------------------------------------------*/
+static void
+emitSymbolToFile (FILE *of, const char *name, const char *section_type, int size, int addr, int useEQU, int globalize)
+{
+ 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 */
+ if (pic14_stringInSet(name, &emitted, 1)) return;
+
+ /* new symbol -- define it */
+ //fprintf (stderr, "%s: emitting %s (%d)\n", __FUNCTION__, name, size);
+ if (useEQU) {
+ fprintf (of, "%s\tEQU\t0x%04x\n", name, addr);
+ } else {
+ /* we place each symbol into a section of its own to allow the linker
+ * to distribute the data into all available memory banks */
+ if (!section_type) section_type = "udata";
+ if (addr != -1)
+ {
+ /* absolute symbols are handled in pic14_constructAbsMap */
+ /* do nothing */
+ } 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, "%s\tres\t%d\n", name, size);
+ }
+ }
+}
+
/*-----------------------------------------------------------------*/
/* printExterns - generates extern for external variables */
/*-----------------------------------------------------------------*/
symbol *sym;
fprintf (afile, "%s", iComments2);
- fprintf (afile, "; publics variables in this module\n");
+ fprintf (afile, "; public variables in this module\n");
fprintf (afile, "%s", iComments2);
for (sym = setFirstItem (publics); sym;
}
}
+static void
+pic14printLocals (FILE * afile)
+{
+ set *allregs[6] = { dynAllocRegs, dynStackRegs, dynProcessorRegs, dynDirectRegs, dynDirectBitRegs, dynInternalRegs };
+ regs *reg;
+ int i;
+
+ /* emit all registers from all possible sets */
+ for (i = 0; i < 6; i++) {
+ if (allregs[i] == NULL) continue;
+
+ for (reg = setFirstItem(allregs[i]); reg; reg = setNextItem(allregs[i])) {
+ if (reg->isEmitted) continue;
+
+ if (reg->wasUsed && !reg->isExtern) {
+ emitSymbolToFile(afile, reg->name, "udata", reg->size, reg->isFixed ? reg->address : -1, 0, reg->isPublic);
+ }
+ reg->isEmitted = 1;
+ } // for
+ } // for
+}
+
/*-----------------------------------------------------------------*/
/* emitOverlay - will emit code for the overlay stuff */
/*-----------------------------------------------------------------*/
/* Put all variables into a cblock */
AnalyzeBanking();
+
+ /* print the locally defined variables in this module */
writeUsedRegs(asmFile);
+ pic14printLocals (asmFile);
/* create the overlay segments */
fprintf (asmFile, "%s", iComments2);
projects / fw / sdcc / blobdiff