#include "ralloc.h"
#include "pcode.h"
#include "newalloc.h"
+#include "gen.h"
+#include "main.h"
+#include "device.h"
+#include "dbuf_string.h"
#ifdef WORDS_BIGENDIAN
- #define _ENDIAN(x) (3-x)
+#define _ENDIAN(x) (3-x)
#else
- #define _ENDIAN(x) (x)
+#define _ENDIAN(x) (x)
#endif
#define BYTE_IN_LONG(x,b) ((x>>(8*_ENDIAN(b)))&0xff)
extern symbol *interrupts[256];
-static void printIval (symbol * sym, sym_link * type, initList * ilist, pBlock *pb);
+static void showAllMemmaps(FILE *of); // XXX: emits initialized symbols
extern int noAlloc;
extern set *publics;
+extern set *externs;
extern unsigned maxInterrupts;
extern int maxRegBank;
extern symbol *mainf;
extern char *VersionString;
-extern FILE *codeOutFile;
-extern set *tmpfileSet;
-extern set *tmpfileNameSet;
+extern struct dbuf_s *codeOutBuf;
extern char *iComments1;
extern char *iComments2;
//extern void emitStaticSeg (memmap * map);
+set *pic14_localFunctions = NULL;
extern DEFSETFUNC (closeTmpFiles);
extern DEFSETFUNC (rmTmpFiles);
extern void AnalyzeBanking (void);
-extern void copyFile (FILE * dest, FILE * src);
+extern void ReuseReg(void);
extern void InlinepCode(void);
extern void writeUsedRegs(FILE *);
extern void printChar (FILE * ofile, char *s, int plen);
void pCodeInitRegisters(void);
+int getConfigWord(int address);
+int getHasSecondConfigReg(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 emitSymbol (struct dbuf_s *oBuf, const char *name, const char *section_type, int size, int addr, int useEQU, int globalize);
/*-----------------------------------------------------------------*/
/* aopLiteral - string from a literal value */
/*-----------------------------------------------------------------*/
-int pic14aopLiteral (value *val, int offset)
+unsigned int pic14aopLiteral (value *val, int offset)
{
- union {
- float f;
- unsigned char c[4];
- } fl;
-
- /* if it is a float then it gets tricky */
- /* otherwise it is fairly simple */
- if (!IS_FLOAT(val->type)) {
- unsigned long v = (unsigned long) floatFromVal(val);
-
- return ( (v >> (offset * 8)) & 0xff);
- }
-
- /* it is type float */
- fl.f = (float) floatFromVal(val);
+ union {
+ float f;
+ unsigned char c[4];
+ } fl;
+
+ /* if it is a float then it gets tricky */
+ /* otherwise it is fairly simple */
+ if (!IS_FLOAT(val->type)) {
+ unsigned long v = (unsigned long) floatFromVal(val);
+
+ return ( (v >> (offset * 8)) & 0xff);
+ }
+
+ /* it is type float */
+ fl.f = (float) floatFromVal(val);
#ifdef WORDS_BIGENDIAN
- return fl.c[3-offset];
+ return fl.c[3-offset];
#else
- return fl.c[offset];
+ return fl.c[offset];
#endif
-
+
}
+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;
-/*-----------------------------------------------------------------*/
-/* emitRegularMap - emit code for maps with no special cases */
-/*-----------------------------------------------------------------*/
+ 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;
+}
+
+#define IS_DEFINED_HERE(sym) (!IS_EXTERN(sym->etype))
+extern int IS_CONFIG_ADDRESS( int addr );
static void
-pic14emitRegularMap (memmap * map, bool addPublics, bool arFlag)
+pic14_constructAbsMap (struct dbuf_s *oBuf)
{
+ memmap *maps[] = { data, sfr, NULL };
+ int i;
+ hTab *ht = NULL;
symbol *sym;
- int i, size, bitvars = 0;;
-
- if (addPublics)
- fprintf (map->oFile, ";\t.area\t%s\n", map->sname);
-
- /* print the area name */
- for (sym = setFirstItem (map->syms); sym;
- sym = setNextItem (map->syms))
+ set *aliases;
+ int addr, min=-1, max=-1;
+ int size;
+ PIC_device *pic;
+ int low, high, shared;
+
+ 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);
- /* if extern then do nothing */
- if (IS_EXTERN (sym->etype))
- continue;
-
- /* if allocation required check is needed
- then check if the symbol really requires
- allocation only for local variables */
- if (arFlag && !IS_AGGREGATE (sym->type) &&
- !(sym->_isparm && !IS_REGPARM (sym->etype)) &&
- !sym->allocreq && sym->level)
- continue;
-
- /* 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))
- addSetHead (&publics, sym);
-
- /* if extern then do nothing or is a function
- then do nothing */
- if (IS_FUNC (sym->type))
- continue;
-#if 0
- /* print extra debug info if required */
- if (options.debug || sym->level == 0)
+ /* handle CONFIG words here */
+ if (IS_CONFIG_ADDRESS( addr ))
{
- if (!sym->level) /* global */
- if (IS_STATIC (sym->etype))
- fprintf (map->oFile, "F%s_", moduleName); /* scope is file */
- else
- fprintf (map->oFile, "G_"); /* scope is global */
- else
- /* symbol is local */
- fprintf (map->oFile, "L%s_", (sym->localof ? sym->localof->name : "-null-"));
- fprintf (map->oFile, "%s_%d_%d", sym->name, sym->level, sym->block);
+ //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
-
- /* if is has an absolute address then generate
- an equate for this no need to allocate space */
- if (SPEC_ABSA (sym->etype))
- {
- //if (options.debug || sym->level == 0)
- //fprintf (map->oFile,"; == 0x%04x\n",SPEC_ADDR (sym->etype));
-
- fprintf (map->oFile, "%s\tEQU\t0x%04x\n",
- sym->rname,
- SPEC_ADDR (sym->etype));
- }
- else
- {
- /* allocate space */
-
- /* If this is a bit variable, then allocate storage after 8 bits have been declared */
- /* unlike the 8051, the pic does not have a separate bit area. So we emulate bit ram */
- /* by grouping the bits together into groups of 8 and storing them in the normal ram. */
- if (IS_BITVAR (sym->etype))
- {
- bitvars++;
- }
- else
- {
- fprintf (map->oFile, "\t%s\n", sym->rname);
- if ((size = (unsigned int) getSize (sym->type) & 0xffff) > 1)
- {
- for (i = 1; i < size; i++)
- fprintf (map->oFile, "\t%s_%d\n", sym->rname, i);
- }
- }
- //fprintf (map->oFile, "\t.ds\t0x%04x\n", (unsigned int)getSize (sym->type) & 0xffff);
+ } else {
+ addSet (&aliases, sym);
+ hTabAddItem (&ht, addr, aliases);
+ } // if
+ } // if
+ } // for sym
+ } // for i
+
+ /* now emit definitions for all absolute symbols */
+ dbuf_printf (oBuf, "%s", iComments2);
+ dbuf_printf (oBuf, "; absolute symbol definitions\n");
+ dbuf_printf (oBuf, "%s", iComments2);
+ for (addr=min; addr <= max; addr++)
+ {
+ size = 1;
+ aliases = hTabItemWithKey (ht, addr);
+ if (aliases && elementsInSet(aliases)) {
+ /* Make sure there is no initialized value at this location! */
+ for (sym = setFirstItem(aliases); sym; sym = setNextItem(aliases)) {
+ if (sym->ival) break;
+ } // for
+ if (sym) continue;
+
+ dbuf_printf (oBuf, "udata_abs_%s_%x\tudata_ovr\t0x%04x\n",
+ moduleName, addr, addr);
+ for (sym = setFirstItem (aliases); sym;
+ sym = setNextItem (aliases))
+ {
+ if (getSize(sym->type) > size) {
+ size = getSize(sym->type);
}
- /* if it has a initial value then do it only if
- 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
- ival = newNode ('=', newAst_VALUE(symbolVal (sym)),
- decorateType (resolveSymbols (list2expr (sym->ival))));
- codeOutFile = statsg->oFile;
- GcurMemmap = statsg;
- eBBlockFromiCode (iCodeFromAst (ival));
- sym->ival = NULL;
+ /* initialized values are handled somewhere else */
+ if (sym->ival) continue;
+
+ /* emit STATUS as well as _STATUS, required for SFRs only */
+ dbuf_printf (oBuf, "%s\n", sym->name);
+ dbuf_printf (oBuf, "%s\n", sym->rname);
+ 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
+ dbuf_printf (oBuf, "\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. */
+ dbuf_printf (oBuf, "\n");
+ shared = pic14_getSharedStack(&low, &high, &size);
+ if (!pic14_options.isLibrarySource)
+ {
+ pic = pic14_getPIC();
+
+ dbuf_printf (oBuf, "\tglobal PSAVE\n");
+ dbuf_printf (oBuf, "\tglobal SSAVE\n");
+ dbuf_printf (oBuf, "\tglobal WSAVE\n");
+ for (i = size - 4; i >= 0; i--) {
+ dbuf_printf (oBuf, "\tglobal STK%02d\n", i);
+ } // for i
+
+ // 16f84 has no SHAREBANK (in linkerscript) but memory aliased in two
+ // banks, sigh...
+ if (1 || !shared) {
+ // for single banked devices: use normal, "banked" RAM
+ dbuf_printf (oBuf, "sharebank udata_ovr 0x%04X\n", low);
+ } else {
+ // for devices with at least two banks, require a sharebank section
+ dbuf_printf (oBuf, "sharebank udata_shr\n");
}
+ dbuf_printf (oBuf, "PSAVE\tres 1\n");
+ dbuf_printf (oBuf, "SSAVE\tres 1\n");
+ dbuf_printf (oBuf, "WSAVE\tres 1\n"); // WSAVE *must* be in sharebank (IRQ handlers)
+ /* fill rest of sharebank with stack STKxx .. STK00 */
+ for (i = size - 4; i >= 0; i--) {
+ dbuf_printf (oBuf, "STK%02d\tres 1\n", i);
+ } // for i
+ } else {
+ /* declare STKxx as extern for all files
+ * except the one containing main() */
+ dbuf_printf (oBuf, "\textern PSAVE\n");
+ dbuf_printf (oBuf, "\textern SSAVE\n");
+ dbuf_printf (oBuf, "\textern WSAVE\n");
+ for (i = size - 4; i >= 0; i--) {
+ char buffer[128];
+ SNPRINTF(&buffer[0], 127, "STK%02d", i);
+ dbuf_printf (oBuf, "\textern %s\n", &buffer[0]);
+ pic14_stringInSet(&buffer[0], &emitted, 1);
+ } // for i
+ }
+}
+
+/*-----------------------------------------------------------------*/
+/* emitRegularMap - emit code for maps with no special cases */
+/*-----------------------------------------------------------------*/
+static void
+pic14emitRegularMap (memmap * map, bool addPublics, bool arFlag)
+{
+ symbol *sym;
+ int bitvars = 0;;
+
+ /* print the area name */
+ if (addPublics)
+ dbuf_printf (&map->oBuf, ";\t.area\t%s\n", map->sname);
+
+ for (sym = setFirstItem (map->syms); sym;
+ 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)) {
+ addSetHead (&externs, sym);
+ continue;
+ }
+
+ /* if allocation required check is needed
+ then check if the symbol really requires
+ allocation only for local variables */
+ if (arFlag && !IS_AGGREGATE (sym->type) &&
+ !(sym->_isparm && !IS_REGPARM (sym->etype)) &&
+ !sym->allocreq && sym->level)
+ continue;
+
+ /* 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)
+ continue;
+ /* if extern then do nothing or is a function
+ then do nothing */
+ if (IS_FUNC (sym->type))
+ continue;
+#if 0
+ /* print extra debug info if required */
+ if (options.debug || sym->level == 0)
+ {
+ if (!sym->level) /* global */
+ if (IS_STATIC (sym->etype))
+ dbuf_printf (&map->oBuf, "F%s_", moduleName); /* scope is file */
+ else
+ dbuf_printf (&map->oBuf, "G_"); /* scope is global */
+ else
+ /* symbol is local */
+ dbuf_printf (&map->oBuf, "L%s_", (sym->localof ? sym->localof->name : "-null-"));
+ dbuf_printf (&map->oBuf, "%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 (0 && SPEC_ABSA (sym->etype))
+ {
+ //if (options.debug || sym->level == 0)
+ //dbuf_printf (&map->oBuf,"; == 0x%04x\n",SPEC_ADDR (sym->etype));
+
+ dbuf_printf (&map->oBuf, "%s\tEQU\t0x%04x\n",
+ sym->rname,
+ SPEC_ADDR (sym->etype));
+ }
+ else
+ {
+ /* allocate space */
+
+ /* If this is a bit variable, then allocate storage after 8 bits have been declared */
+ /* unlike the 8051, the pic does not have a separate bit area. So we emulate bit ram */
+ /* by grouping the bits together into groups of 8 and storing them in the normal ram. */
+ if (IS_BITVAR (sym->etype))
+ {
+ bitvars++;
+ }
+ else
+ {
+ if (!sym->ival) {
+ emitSymbol (&map->oBuf,
+ sym->rname,
+ NULL,
+ getSize (sym->type) & 0xffff,
+ SPEC_ABSA(sym->etype)
+ ? SPEC_ADDR(sym->etype)
+ : -1,
+ 0,
+ 0);
+ }
+ /*
+ {
+ int i, size;
+
+ if ((size = (unsigned int) getSize (sym->type) & 0xffff) > 1)
+ {
+ for (i = 1; i < size; i++)
+ dbuf_printf (&map->oBuf, "\t%s_%d\n", sym->rname, i);
+ }
+ }
+ */
+ }
+ //dbuf_printf (&map->oBuf, "\t.ds\t0x%04x\n", (unsigned int)getSize (sym->type) & 0xffff);
+ }
+
+#if 0
+ /* if it has a initial value then do it only if
+ 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
+ ival = newNode ('=', newAst_VALUE(symbolVal (sym)),
+ decorateType (resolveSymbols (list2expr (sym->ival)), RESULT_TYPE_NONE));
+ codeOutBuf = &statsg->oBuf;
+ GcurMemmap = statsg;
+ eBBlockFromiCode (iCodeFromAst (ival));
+ sym->ival = NULL;
+ }
+#endif
+ }
}
+#if 0
/*-----------------------------------------------------------------*/
/* printIvalType - generates ival for int/char */
/*-----------------------------------------------------------------*/
static void
printIvalType (symbol *sym, sym_link * type, initList * ilist, pBlock *pb)
{
- value *val;
- unsigned long ulval;
-
- //fprintf(stderr, "%s\n",__FUNCTION__);
-
- /* if initList is deep */
- if (ilist->type == INIT_DEEP)
- ilist = ilist->init.deep;
-
- if (!IS_AGGREGATE(sym->type) && getNelements(type, ilist)>1) {
- werror (W_EXCESS_INITIALIZERS, "scalar", sym->name, sym->lineDef);
- }
-
- if (!(val = list2val (ilist))) {
- // assuming a warning has been thrown
- val=constVal("0");
- }
+ value *val;
+ unsigned long ulval;
+
+ //fprintf(stderr, "%s\n",__FUNCTION__);
+
+ /* if initList is deep */
+ if (ilist->type == INIT_DEEP)
+ ilist = ilist->init.deep;
+
+ if (!IS_AGGREGATE(sym->type) && getNelements(type, ilist)>1) {
+ werror (W_EXCESS_INITIALIZERS, "scalar", sym->name, sym->lineDef);
+ }
+
+ if (!(val = list2val (ilist))) {
+ // assuming a warning has been thrown
+ val=constVal("0");
+ }
+
+ if (val->type != type) {
+ val = valCastLiteral(type, floatFromVal(val));
+ }
+
+ if(val)
+ ulval = (unsigned long) floatFromVal (val);
+ else
+ ulval =0;
+
+ switch (getSize (type)) {
+ case 1:
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(BYTE_IN_LONG(ulval,0))));
+ break;
+
+ case 2:
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(BYTE_IN_LONG(ulval,0))));
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(BYTE_IN_LONG(ulval,1))));
+ break;
+
+ case 4:
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(BYTE_IN_LONG(ulval,0))));
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(BYTE_IN_LONG(ulval,1))));
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(BYTE_IN_LONG(ulval,2))));
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(BYTE_IN_LONG(ulval,3))));
+ break;
+ }
+}
- if (val->type != type) {
- val = valCastLiteral(type, floatFromVal(val));
- }
+/*-----------------------------------------------------------------*/
+/* printIvalBitFields - generate initializer for bitfields */
+/*-----------------------------------------------------------------*/
+static void printIvalBitFields(symbol **sym, initList **ilist, pBlock *pb )
+{
+ value *val ;
+ symbol *lsym = *sym;
+ initList *lilist = *ilist ;
+ unsigned long ival = 0;
+ int size =0;
+
+
+ do {
+ unsigned long i;
+ val = list2val(lilist);
+ if (size) {
+ if (SPEC_BLEN(lsym->etype) > 8) {
+ size += ((SPEC_BLEN (lsym->etype) / 8) +
+ (SPEC_BLEN (lsym->etype) % 8 ? 1 : 0));
+ }
+ } else {
+ size = ((SPEC_BLEN (lsym->etype) / 8) +
+ (SPEC_BLEN (lsym->etype) % 8 ? 1 : 0));
+ }
+ i = (unsigned long)floatFromVal(val);
+ i <<= SPEC_BSTR (lsym->etype);
+ ival |= i;
+ if (! ( lsym->next &&
+ (IS_BITFIELD(lsym->next->type)) &&
+ (SPEC_BSTR(lsym->next->etype)))) break;
+ lsym = lsym->next;
+ lilist = lilist->next;
+ } while (1);
+ switch (size) {
+ case 1:
+ //tfprintf (oFile, "\t!db !constbyte\n",ival);
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(ival)));
+ break;
+
+ case 2:
+ //tfprintf (oFile, "\t!dw !constword\n",ival);
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(ival>>8)));
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(ival)));
+ break;
+ case 4:
+ //tfprintf (oFile, "\t!db !constword,!constword\n",(ival >> 8) & 0xffff, (ival & 0xffff));
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(ival>>24)));
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(ival>>16)));
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(ival>>8)));
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(ival)));
+ break;
+ }
+ *sym = lsym;
+ *ilist = lilist;
+}
- if(val)
- ulval = (unsigned long) floatFromVal (val);
- else
- ulval =0;
-
- switch (getSize (type)) {
- case 1:
- addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(BYTE_IN_LONG(ulval,0))));
- break;
-
- case 2:
- addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(BYTE_IN_LONG(ulval,0))));
- addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(BYTE_IN_LONG(ulval,1))));
- break;
-
- case 4:
- addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(BYTE_IN_LONG(ulval,0))));
- addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(BYTE_IN_LONG(ulval,1))));
- addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(BYTE_IN_LONG(ulval,2))));
- addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(BYTE_IN_LONG(ulval,3))));
- break;
- }
+/*-----------------------------------------------------------------*/
+/* printIvalStruct - generates initial value for structures */
+/*-----------------------------------------------------------------*/
+static void printIvalStruct (symbol * sym, sym_link * type, initList * ilist, pBlock *pb)
+{
+ symbol *sflds;
+ initList *iloop = NULL;
+
+ sflds = SPEC_STRUCT (type)->fields;
+
+ if (ilist) {
+ if (ilist->type != INIT_DEEP) {
+ werrorfl (sym->fileDef, sym->lineDef, E_INIT_STRUCT, sym->name);
+ return;
+ }
+
+ iloop = ilist->init.deep;
+ }
+
+ for (; sflds; sflds = sflds->next, iloop = (iloop ? iloop->next : NULL)) {
+ if (IS_BITFIELD(sflds->type)) {
+ printIvalBitFields(&sflds,&iloop,pb);
+ } else {
+ printIval (sym, sflds->type, iloop, pb);
+ }
+ }
+ if (iloop) {
+ werrorfl (sym->fileDef, sym->lineDef, W_EXCESS_INITIALIZERS, "struct", sym->name);
+ }
+ return;
}
/*-----------------------------------------------------------------*/
static int
printIvalChar (sym_link * type, initList * ilist, pBlock *pb, char *s)
{
- value *val;
- int remain;
-
- if(!pb)
- return 0;
-
- fprintf(stderr, "%s\n",__FUNCTION__);
- if (!s)
- {
-
- val = list2val (ilist);
- /* if the value is a character string */
- if (IS_ARRAY (val->type) && IS_CHAR (val->etype))
+ value *val;
+ int remain, ilen;
+
+ if(!pb)
+ return 0;
+
+ //fprintf(stderr, "%s\n",__FUNCTION__);
+ if (!s)
{
- if (!DCL_ELEM (type))
- DCL_ELEM (type) = strlen (SPEC_CVAL (val->etype).v_char) + 1;
-
- //printChar (oFile, SPEC_CVAL (val->etype).v_char, DCL_ELEM (type));
- //fprintf(stderr, "%s omitting call to printChar\n",__FUNCTION__);
- addpCode2pBlock(pb,newpCodeCharP(";omitting call to printChar"));
+
+ val = list2val (ilist);
- if ((remain = (DCL_ELEM (type) - strlen (SPEC_CVAL (val->etype).v_char) - 1)) > 0)
- while (remain--)
- //tfprintf (oFile, "\t!db !constbyte\n", 0);
- addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(0)));
- return 1;
+ /* if the value is a character string */
+ if (IS_ARRAY (val->type) && IS_CHAR (val->etype))
+ {
+ ilen = DCL_ELEM(val->type);
+
+ if (!DCL_ELEM (type))
+ DCL_ELEM (type) = ilen;
+
+ /* emit string constant */
+ for (remain = 0; remain < ilen; remain++) {
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(SPEC_CVAL(val->etype).v_char[remain])));
+ }
+
+ /* fill array up to desired size */
+ if ((remain = (DCL_ELEM (type) - ilen)) > 0)
+ while (remain--)
+ //tfprintf (oFile, "\t!db !constbyte\n", 0);
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(0)));
+ return 1;
+ }
+ else
+ return 0;
}
- else
- return 0;
- }
- else {
- //printChar (oFile, s, strlen (s) + 1);
-
- for(remain=0; remain<strlen(s); remain++) {
- addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(s[remain])));
- //fprintf(stderr,"0x%02x ",s[remain]);
- }
- //fprintf(stderr,"\n");
- }
- return 1;
+ else {
+ //printChar (oFile, s, strlen (s) + 1);
+
+ for(remain=0; remain<(int)strlen(s); remain++) {
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(s[remain])));
+ //fprintf(stderr,"0x%02x ",s[remain]);
+ }
+ //fprintf(stderr,"\n");
+ }
+ return 1;
}
/*-----------------------------------------------------------------*/
/*-----------------------------------------------------------------*/
static void
printIvalArray (symbol * sym, sym_link * type, initList * ilist,
- pBlock *pb)
+ pBlock *pb)
{
- initList *iloop;
- int lcnt = 0, size = 0;
-
- if(!pb)
- return;
-
- /* take care of the special case */
- /* array of characters can be init */
- /* by a string */
- if (IS_CHAR (type->next)) {
- //fprintf(stderr,"%s:%d - is_char\n",__FUNCTION__,__LINE__);
- if (!IS_LITERAL(list2val(ilist)->etype)) {
- werror (W_INIT_WRONG);
- return;
- }
- if (printIvalChar (type,
- (ilist->type == INIT_DEEP ? ilist->init.deep : ilist),
- pb, SPEC_CVAL (sym->etype).v_char))
- return;
- }
- /* not the special case */
- if (ilist->type != INIT_DEEP)
- {
- werror (E_INIT_STRUCT, sym->name);
- return;
- }
+ initList *iloop;
+ unsigned size = 0;
+
+ if(!pb)
+ return;
+ if (ilist) {
+ /* take care of the special case */
+ /* array of characters can be init */
+ /* by a string */
+ if (IS_CHAR (type->next)) {
+ //fprintf(stderr,"%s:%d - is_char\n",__FUNCTION__,__LINE__);
+ if (!IS_LITERAL(list2val(ilist)->etype)) {
+ werror (W_INIT_WRONG);
+ return;
+ }
+ if (printIvalChar (type,
+ (ilist->type == INIT_DEEP ? ilist->init.deep : ilist),
+ pb, SPEC_CVAL (sym->etype).v_char))
+ return;
+ }
+ /* not the special case */
+ if (ilist->type != INIT_DEEP) {
+ werrorfl (ilist->filename, ilist->lineno, E_INIT_STRUCT, sym->name);
+ return;
+ }
- iloop = ilist->init.deep;
- lcnt = DCL_ELEM (type);
+ for (iloop=ilist->init.deep; iloop; iloop=iloop->next) {
+ if ((++size > DCL_ELEM(type)) && DCL_ELEM(type)) {
+ werrorfl (sym->fileDef, sym->lineDef, W_EXCESS_INITIALIZERS, "array", sym->name);
+ break;
+ }
+ printIval (sym, type->next, iloop, pb);
+ }
+ }
- for (;;)
- {
- //fprintf(stderr,"%s:%d - is_char\n",__FUNCTION__,__LINE__);
- size++;
- printIval (sym, type->next, iloop, pb);
- iloop = (iloop ? iloop->next : NULL);
+ if (DCL_ELEM(type)) {
+ // pad with zeros if needed
+ if (size<DCL_ELEM(type)) {
+ size = (DCL_ELEM(type) - size) * getSize(type->next);
+ while (size--) {
+ //tfprintf (oFile, "\t!db !constbyte\n", 0);
+ addpCode2pBlock(pb,newpCode(POC_RETLW,newpCodeOpLit(0)));
+ }
+ }
+ } else {
+ // we have not been given a size, but we now know it
+ DCL_ELEM (type) = size;
+ }
+ return;
+}
- /* if not array limits given & we */
- /* are out of initialisers then */
- if (!DCL_ELEM (type) && !iloop)
- break;
+/*-----------------------------------------------------------------*/
+/* printIvalPtr - generates code for initial value of pointers */
+/*-----------------------------------------------------------------*/
+extern value *initPointer (initList *, sym_link *toType);
- /* no of elements given and we */
- /* have generated for all of them */
- if (!--lcnt) {
- /* if initializers left */
- if (iloop) {
- werror (W_EXCESS_INITIALIZERS, "array", sym->name, sym->lineDef);
+static void
+printIvalPtr (symbol * sym, sym_link * type, initList * ilist, pBlock *pb)
+{
+ value *val;
+
+ if (!ilist || !pb)
+ return;
+
+ fprintf (stderr, "FIXME: initializers for pointers...\n");
+ printTypeChain (type, stderr);
+
+ fprintf (stderr, "symbol: %s, DCL_TYPE():%d, DCL_ELEM():%d, IS_ARRAY():%d", sym->rname, DCL_TYPE(type), DCL_ELEM(type), IS_ARRAY(type));
+ fprintf (stderr, "ilist: type=%d (INIT_DEEP=%d, INIT_NODE=%d)\n", ilist->type, INIT_DEEP, INIT_NODE);
+
+ if (ilist && (ilist->type == INIT_DEEP))
+ ilist = ilist->init.deep;
+
+ /* function pointers */
+ if (IS_FUNC (type->next))
+ {
+ assert ( !"function pointers not yet handled" );
+ //printIvalFuncPtr (type, ilist, pb);
+ }
+
+ if (!(val = initPointer (ilist, type)))
+ return;
+
+ if (IS_CHAR (type->next))
+ {
+ if (printIvalChar (type, ilist, pb, NULL)) return;
}
- break;
- }
- }
- /* if we have not been given a size */
- if (!DCL_ELEM (type))
- DCL_ELEM (type) = size;
+ /* check the type */
+ if (compareType (type, val->type) == 0)
+ {
+ werrorfl (ilist->filename, ilist->lineno, W_INIT_WRONG);
+ printFromToType (val->type, type);
+ }
- return;
+ if (IS_LITERAL (val->etype))
+ {
+ switch (getSize (type))
+ {
+ case 1:
+ fprintf (stderr, "BYTE: %i\n", (unsigned char)floatFromVal (val) & 0x00FF);
+ break;
+ case 2:
+ fprintf (stderr, "WORD: %i\n", (unsigned int)floatFromVal (val) & 0x00FFFF);
+ break;
+ case 3: /* gneric pointers */
+ assert ( !"generic pointers not yet handled" );
+ case 4:
+ fprintf (stderr, "LONG: %i\n", (unsigned int)floatFromVal (val) & 0x0000FFFFFFFF);
+ break;
+ default:
+ assert ( !"invaild size of value -- aborting" );
+ } // switch
+
+ return;
+ } // if (IS_LITERAL)
+
+ /* now handle symbolic values */
+ switch (getSize (type))
+ {
+ case 1:
+ fprintf (stderr, "BYTE: %s", val->name);
+ break;
+ case 2:
+ fprintf (stderr, "WORD: %s", val->name);
+ break;
+ case 4:
+ fprintf (stderr, "LONG: %s", val->name);
+ break;
+ default:
+ assert ( !"invalid size of (symbolic) value -- aborting" );
+ } // switch
}
/*-----------------------------------------------------------------*/
static void
printIval (symbol * sym, sym_link * type, initList * ilist, pBlock *pb)
{
- if (!ilist || !pb)
- return;
-
- /* if structure then */
- if (IS_STRUCT (type))
- {
- //fprintf(stderr,"%s struct\n",__FUNCTION__);
- //printIvalStruct (sym, type, ilist, oFile);
- return;
- }
-
- /* if this is a pointer */
- if (IS_PTR (type))
- {
- //fprintf(stderr,"%s pointer\n",__FUNCTION__);
- //printIvalPtr (sym, type, ilist, oFile);
- return;
- }
-
- /* if this is an array */
- if (IS_ARRAY (type))
- {
- //fprintf(stderr,"%s array\n",__FUNCTION__);
- printIvalArray (sym, type, ilist, pb);
- return;
- }
-
- /* if type is SPECIFIER */
- if (IS_SPEC (type))
- {
- //fprintf(stderr,"%s spec\n",__FUNCTION__);
- printIvalType (sym, type, ilist, pb);
- return;
- }
+ if (!ilist || !pb)
+ return;
+
+ /* if structure then */
+ if (IS_STRUCT (type))
+ {
+ //fprintf(stderr,"%s struct: %s\n",__FUNCTION__, sym->rname);
+ printIvalStruct (sym, type, ilist, pb);
+ return;
+ }
+
+ /* if this is an array */
+ if (IS_ARRAY (type))
+ {
+ //fprintf(stderr,"%s array: %s\n",__FUNCTION__, sym->rname);
+ printIvalArray (sym, type, ilist, pb);
+ return;
+ }
+
+ /* if this is a pointer */
+ if (IS_PTR (type))
+ {
+ //fprintf(stderr,"%s pointer: %s\n",__FUNCTION__, sym->rname);
+ printIvalPtr (sym, type, ilist, pb);
+ return;
+ }
+
+ /* if type is SPECIFIER */
+ if (IS_SPEC (type))
+ {
+ //fprintf(stderr,"%s spec %s\n",__FUNCTION__, sym->rname);
+ printIvalType (sym, type, ilist, pb);
+ return;
+ }
}
+#endif
extern void pCodeConstString(char *name, char *value);
/*-----------------------------------------------------------------*/
static void
pic14emitStaticSeg (memmap * map)
{
- symbol *sym;
-
- fprintf (map->oFile, ";\t.area\t%s\n", map->sname);
-
- //fprintf(stderr, "%s\n",__FUNCTION__);
-
- /* for all variables in this segment do */
- for (sym = setFirstItem (map->syms); sym;
- sym = setNextItem (map->syms))
- {
- /* if it is "extern" then do nothing */
- if (IS_EXTERN (sym->etype))
- continue;
-
- /* if it is not static add it to the public
- table */
- if (!IS_STATIC (sym->etype))
- addSetHead (&publics, sym);
-
- /* print extra debug info if required */
- if (options.debug || sym->level == 0)
- {
- if (!sym->level)
- { /* global */
- if (IS_STATIC (sym->etype))
- fprintf (code->oFile, "F%s_", moduleName); /* scope is file */
- else
- fprintf (code->oFile, "G_"); /* scope is global */
- }
- else
- /* symbol is local */
- fprintf (code->oFile, "L%s_",
- (sym->localof ? sym->localof->name : "-null-"));
- fprintf (code->oFile, "%s_%d_%d", sym->name, sym->level, sym->block);
-
- }
-
- /* if it has an absolute address */
- if (SPEC_ABSA (sym->etype))
- {
- if (options.debug || sym->level == 0)
- fprintf (code->oFile, " == 0x%04x\n", SPEC_ADDR (sym->etype));
-
- fprintf (code->oFile, "%s\t=\t0x%04x\n",
- sym->rname,
- SPEC_ADDR (sym->etype));
- }
- else
+ symbol *sym;
+
+ dbuf_printf (&map->oBuf, ";\t.area\t%s\n", map->sname);
+
+ //fprintf(stderr, "%s\n",__FUNCTION__);
+
+ /* for all variables in this segment do */
+ for (sym = setFirstItem (map->syms); sym;
+ sym = setNextItem (map->syms))
{
- if (options.debug || sym->level == 0)
- fprintf (code->oFile, " == .\n");
-
- /* if it has an initial value */
- if (sym->ival)
- {
- pBlock *pb;
-
- fprintf (code->oFile, "%s:\n", sym->rname);
- noAlloc++;
- resolveIvalSym (sym->ival);
- //printIval (sym, sym->type, sym->ival, code->oFile);
- pb = newpCodeChain(NULL, 'P',newpCodeCharP("; Starting pCode block for Ival"));
- addpBlock(pb);
- addpCode2pBlock(pb,newpCodeLabel(sym->rname,-1));
-
- printIval (sym, sym->type, sym->ival, pb);
- noAlloc--;
- }
- else
- {
-
- /* allocate space */
- fprintf (code->oFile, "%s:\n", sym->rname);
- /* special case for character strings */
- if (IS_ARRAY (sym->type) && IS_CHAR (sym->type->next) &&
- SPEC_CVAL (sym->etype).v_char)
- pCodeConstString(sym->rname , SPEC_CVAL (sym->etype).v_char);
- /*printChar (code->oFile,
- SPEC_CVAL (sym->etype).v_char,
- strlen (SPEC_CVAL (sym->etype).v_char) + 1);*/
- else
- fprintf (code->oFile, "\t.ds\t0x%04x\n", (unsigned int) getSize (sym->type) & 0xffff);
- }
+ /* if extern then add it into the extern list */
+ if (IS_EXTERN (sym->etype)) {
+ addSetHead (&externs, sym);
+ continue;
+ }
+
+ /* if it is not static add it to the public
+ table */
+ if (!IS_STATIC (sym->etype))
+ addSetHead (&publics, sym);
+
+ /* print extra debug info if required */
+ if (options.debug || sym->level == 0)
+ {
+ if (!sym->level)
+ { /* global */
+ if (IS_STATIC (sym->etype))
+ dbuf_printf (&code->oBuf, "F%s_", moduleName); /* scope is file */
+ else
+ dbuf_printf (&code->oBuf, "G_"); /* scope is global */
+ }
+ else
+ /* symbol is local */
+ dbuf_printf (&code->oBuf, "L%s_",
+ (sym->localof ? sym->localof->name : "-null-"));
+ dbuf_printf (&code->oBuf, "%s_%d_%d", sym->name, sym->level, sym->block);
+
+ }
+
+ /* if it has an absolute address */
+ if (SPEC_ABSA (sym->etype))
+ {
+ if (options.debug || sym->level == 0)
+ dbuf_printf (&code->oBuf, " == 0x%04x\n", SPEC_ADDR (sym->etype));
+
+ dbuf_printf (&code->oBuf, "%s\t=\t0x%04x\n",
+ sym->rname,
+ SPEC_ADDR (sym->etype));
+ }
+ else
+ {
+ if (options.debug || sym->level == 0)
+ dbuf_printf (&code->oBuf, " == .\n");
+
+ /* if it has an initial value */
+ if (sym->ival)
+ {
+#if 0
+ pBlock *pb;
+
+ dbuf_printf (&code->oBuf, "%s:\n", sym->rname);
+ noAlloc++;
+ resolveIvalSym (sym->ival, sym->type);
+ //printIval (sym, sym->type, sym->ival, &code->oBuf);
+ pb = newpCodeChain(NULL, 'P',newpCodeCharP("; Starting pCode block for Ival"));
+ addpBlock(pb);
+ addpCode2pBlock(pb,newpCodeLabel(sym->rname,-1));
+
+ printIval (sym, sym->type, sym->ival, pb);
+ noAlloc--;
+#endif
+ }
+ else
+ {
+
+ /* allocate space */
+ dbuf_printf (&code->oBuf, "%s:\n", sym->rname);
+ /* special case for character strings */
+ if (IS_ARRAY (sym->type) && IS_CHAR (sym->type->next) &&
+ SPEC_CVAL (sym->etype).v_char)
+ pCodeConstString(sym->rname , SPEC_CVAL (sym->etype).v_char);
+ /*printChar (code->oFile,
+ SPEC_CVAL (sym->etype).v_char,
+ strlen (SPEC_CVAL (sym->etype).v_char) + 1);*/
+ else
+ dbuf_printf (&code->oBuf, "\t.ds\t0x%04x\n", (unsigned int) getSize (sym->type) & 0xffff);
+ }
+ }
}
- }
-
+
}
static void
pic14emitMaps ()
{
- /* 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 (sfrbit, FALSE, FALSE);
- pic14emitRegularMap (code, TRUE, FALSE);
- pic14emitStaticSeg (statsg);
+ pic14_constructAbsMap (&sfr->oBuf);
+/* 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, TRUE, FALSE);
+ pic14emitRegularMap (sfrbit, FALSE, FALSE);
+ pic14emitRegularMap (code, TRUE, FALSE);
+ pic14emitStaticSeg (statsg);
+ pic14emitStaticSeg (c_abs);
}
/*-----------------------------------------------------------------*/
/* createInterruptVect - creates the interrupt vector */
/*-----------------------------------------------------------------*/
+pCodeOp *popGetExternal (char *str);
static void
-pic14createInterruptVect (FILE * vFile)
+pic14createInterruptVect (struct dbuf_s * vBuf)
{
- unsigned i = 0;
- mainf = newSymbol ("main", 0);
- mainf->block = 0;
+ mainf = newSymbol ("main", 0);
+ mainf->block = 0;
+
+ /* only if the main function exists */
+ if (!(mainf = findSymWithLevel (SymbolTab, mainf)))
+ {
+ struct options *op = &options;
+ if (!(op->cc_only || noAssemble))
+ // werror (E_NO_MAIN);
+ fprintf(stderr,"WARNING: function 'main' undefined\n");
+ return;
+ }
+
+ /* if the main is only a prototype ie. no body then do nothing */
+ if (!IFFUNC_HASBODY(mainf->type))
+ {
+ /* if ! compile only then main function should be present */
+ if (!(options.cc_only || noAssemble))
+ // werror (E_NO_MAIN);
+ fprintf(stderr,"WARNING: function 'main' undefined\n");
+ return;
+ }
+
+ dbuf_printf (vBuf, "%s", iComments2);
+ dbuf_printf (vBuf, "; reset vector \n");
+ dbuf_printf (vBuf, "%s", iComments2);
+ dbuf_printf (vBuf, "STARTUP\t%s\n", CODE_NAME); // Lkr file should place section STARTUP at address 0x0
+ dbuf_printf (vBuf, "\tnop\n"); /* first location for used by incircuit debugger */
+ dbuf_printf (vBuf, "\tpagesel __sdcc_gsinit_startup\n");
+ dbuf_printf (vBuf, "\tgoto\t__sdcc_gsinit_startup\n");
+ popGetExternal("__sdcc_gsinit_startup");
+}
- /* only if the main function exists */
- if (!(mainf = findSymWithLevel (SymbolTab, mainf)))
- {
- if (!options.cc_only)
- werror (E_NO_MAIN);
- return;
- }
- /* if the main is only a prototype ie. no body then do nothing */
- if (!IFFUNC_HASBODY(mainf->type))
- {
- /* if ! compile only then main function should be present */
- if (!options.cc_only)
- werror (E_NO_MAIN);
- return;
- }
+/*-----------------------------------------------------------------*/
+/* initialComments - puts in some initial comments */
+/*-----------------------------------------------------------------*/
+static void
+pic14initialComments (FILE * afile)
+{
+ initialComments (afile);
+ fprintf (afile, "; PIC port for the 14-bit core\n");
+ fprintf (afile, iComments2);
+
+}
- fprintf (vFile, ";\t.area\t%s\n", CODE_NAME);
- fprintf (vFile, ";__interrupt_vect:\n");
+int
+pic14_stringInSet(const char *str, set **world, int autoAdd)
+{
+ char *s;
+ if (!str) return 1;
+ assert(world);
- if (!port->genIVT || !(port->genIVT (vFile, interrupts, maxInterrupts)))
- {
- /* "generic" interrupt table header (if port doesn't specify one).
+ 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;
+}
- * Look suspiciously like 8051 code to me...
- */
+static int
+pic14_emitSymbolIfNew(FILE *file, const char *fmt, const char *sym, int checkLocals)
+{
+ 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;
+}
+
+/*-------------------------------------------------------------------*/
+/* emitSymbol - write a symbol definition only if it is not */
+/* already present */
+/*-------------------------------------------------------------------*/
+
+static void
+emitSymbol (struct dbuf_s *oBuf, const char *name, const char *section_type, int size, int addr, int useEQU, int globalize)
+{
+ static unsigned int sec_idx = 0;
- fprintf (vFile, ";\tljmp\t__sdcc_gsinit_startup\n");
+ /* 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;
- /* now for the other interrupts */
- for (; i < maxInterrupts; i++)
+ /* new symbol -- define it */
+ //fprintf (stderr, "%s: emitting %s (%d)\n", __FUNCTION__, name, size);
+ if (useEQU) {
+ dbuf_printf (oBuf, "%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)
{
- if (interrupts[i])
- fprintf (vFile, ";\tljmp\t%s\n;\t.ds\t5\n", interrupts[i]->rname);
- else
- fprintf (vFile, ";\treti\n;\t.ds\t7\n");
+ /* absolute symbols are handled in pic14_constructAbsMap */
+ /* do nothing */
+ } else {
+ if (globalize) dbuf_printf (oBuf, "\tglobal\t%s\n", name);
+ dbuf_printf (oBuf, "udata_%s_%u\t%s\n", moduleName,
+ sec_idx++, section_type);
+ dbuf_printf (oBuf, "%s\tres\t%d\n", name, size);
}
}
}
-
/*-----------------------------------------------------------------*/
-/* initialComments - puts in some initial comments */
+/* printExterns - generates extern for external variables */
/*-----------------------------------------------------------------*/
static void
-pic14initialComments (FILE * afile)
+pic14printExterns (FILE * afile)
{
- initialComments (afile);
- fprintf (afile, "; PIC port for the 14-bit core\n");
- fprintf (afile, iComments2);
-
+ symbol *sym;
+
+ fprintf (afile, "%s", iComments2);
+ fprintf (afile, "; extern variables in this module\n");
+ fprintf (afile, "%s", iComments2);
+
+ for (sym = setFirstItem (externs); sym; sym = setNextItem (externs))
+ pic14_emitSymbolIfNew(afile, "\textern %s\n", sym->rname, 1);
}
/*-----------------------------------------------------------------*/
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;
- sym = setNextItem (publics))
- fprintf (afile, ";\t.globl %s\n", sym->rname);
+ 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);
+ }
+ }
}
+static void
+pic14printLocals (FILE * afile)
+{
+ set *allregs[6] = { dynAllocRegs, dynStackRegs, dynProcessorRegs, dynDirectRegs, dynDirectBitRegs, dynInternalRegs };
+ regs *reg;
+ int i;
+ struct dbuf_s dbuf;
+
+ dbuf_init(&dbuf, 1024);
+ /* 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) {
+ emitSymbol(&dbuf, reg->name, "udata", reg->size, reg->isFixed ? reg->address : -1, 0, reg->isPublic);
+ }
+ reg->isEmitted = 1;
+ } // for
+ } // for
+ dbuf_write_and_destroy(&dbuf, afile);
+}
/*-----------------------------------------------------------------*/
/* emitOverlay - will emit code for the overlay stuff */
/*-----------------------------------------------------------------*/
static void
-pic14emitOverlay (FILE * afile)
+pic14emitOverlay (struct dbuf_s * aBuf)
{
- set *ovrset;
-
- if (!elementsInSet (ovrSetSets))
- fprintf (afile, ";\t.area\t%s\n", port->mem.overlay_name);
-
- /* for each of the sets in the overlay segment do */
- for (ovrset = setFirstItem (ovrSetSets); ovrset;
- ovrset = setNextItem (ovrSetSets))
- {
-
- symbol *sym;
-
- if (elementsInSet (ovrset))
- {
- /* this dummy area is used to fool the assembler
- otherwise the assembler will append each of these
- declarations into one chunk and will not overlay
- sad but true */
- fprintf (afile, ";\t.area _DUMMY\n");
- /* output the area informtion */
- fprintf (afile, ";\t.area\t%s\n", port->mem.overlay_name); /* MOF */
- }
-
- for (sym = setFirstItem (ovrset); sym;
- sym = setNextItem (ovrset))
+ set *ovrset;
+
+ /* if (!elementsInSet (ovrSetSets))*/
+
+ /* the hack below, fixes translates for devices which
+ * only have udata_shr memory */
+ dbuf_printf (aBuf, "%s\t%s\n",
+ (elementsInSet(ovrSetSets)?"":";"),
+ port->mem.overlay_name);
+
+ /* for each of the sets in the overlay segment do */
+ for (ovrset = setFirstItem (ovrSetSets); ovrset;
+ ovrset = setNextItem (ovrSetSets))
{
-
- /* if extern then do nothing */
- if (IS_EXTERN (sym->etype))
- continue;
-
- /* if allocation required check is needed
- then check if the symbol really requires
- allocation only for local variables */
- if (!IS_AGGREGATE (sym->type) &&
- !(sym->_isparm && !IS_REGPARM (sym->etype))
- && !sym->allocreq && sym->level)
- continue;
-
- /* if global variable & not static or extern
- and addPublics allowed then add it to the public set */
- if ((sym->_isparm && !IS_REGPARM (sym->etype))
- && !IS_STATIC (sym->etype))
- addSetHead (&publics, sym);
-
- /* if extern then do nothing or is a function
- then do nothing */
- if (IS_FUNC (sym->type))
- continue;
-
- /* print extra debug info if required */
- if (options.debug || sym->level == 0)
- {
- if (!sym->level)
- { /* global */
- if (IS_STATIC (sym->etype))
- fprintf (afile, "F%s_", moduleName); /* scope is file */
- else
- fprintf (afile, "G_"); /* scope is global */
+
+ symbol *sym;
+
+ if (elementsInSet (ovrset))
+ {
+ /* this dummy area is used to fool the assembler
+ otherwise the assembler will append each of these
+ declarations into one chunk and will not overlay
+ sad but true */
+
+ /* I don't think this applies to us. We are using gpasm. CRF */
+
+ dbuf_printf (aBuf, ";\t.area _DUMMY\n");
+ /* output the area informtion */
+ dbuf_printf (aBuf, ";\t.area\t%s\n", port->mem.overlay_name); /* MOF */
}
- else
- /* symbol is local */
- fprintf (afile, "L%s_",
- (sym->localof ? sym->localof->name : "-null-"));
- fprintf (afile, "%s_%d_%d", sym->name, sym->level, sym->block);
- }
-
- /* if is has an absolute address then generate
- an equate for this no need to allocate space */
- if (SPEC_ABSA (sym->etype))
- {
+
+ for (sym = setFirstItem (ovrset); sym;
+ sym = setNextItem (ovrset))
+ {
+
+ /* if extern then do nothing */
+ if (IS_EXTERN (sym->etype))
+ continue;
+
+ /* if allocation required check is needed
+ then check if the symbol really requires
+ allocation only for local variables */
+ if (!IS_AGGREGATE (sym->type) &&
+ !(sym->_isparm && !IS_REGPARM (sym->etype))
+ && !sym->allocreq && sym->level)
+ continue;
+
+ /* if global variable & not static or extern
+ and addPublics allowed then add it to the public set */
+ if ((sym->_isparm && !IS_REGPARM (sym->etype))
+ && !IS_STATIC (sym->etype))
+ addSetHead (&publics, sym);
+
+ /* if extern then do nothing or is a function
+ then do nothing */
+ if (IS_FUNC (sym->type))
+ continue;
+
+ /* print extra debug info if required */
+ if (options.debug || sym->level == 0)
+ {
+ if (!sym->level)
+ { /* global */
+ if (IS_STATIC (sym->etype))
+ dbuf_printf (aBuf, "F%s_", moduleName); /* scope is file */
+ else
+ dbuf_printf (aBuf, "G_"); /* scope is global */
+ }
+ else
+ /* symbol is local */
+ dbuf_printf (aBuf, "L%s_",
+ (sym->localof ? sym->localof->name : "-null-"));
+ dbuf_printf (aBuf, "%s_%d_%d", sym->name, sym->level, sym->block);
+ }
+
+ /* if is has an absolute address then generate
+ an equate for this no need to allocate space */
+ if (SPEC_ABSA (sym->etype))
+ {
+
+ if (options.debug || sym->level == 0)
+ dbuf_printf (aBuf, " == 0x%04x\n", SPEC_ADDR (sym->etype));
+
+ dbuf_printf (aBuf, "%s\t=\t0x%04x\n",
+ sym->rname,
+ SPEC_ADDR (sym->etype));
+ }
+ else
+ {
+ if (options.debug || sym->level == 0)
+ dbuf_printf (aBuf, "==.\n");
+
+ /* allocate space */
+ dbuf_printf (aBuf, "%s:\n", sym->rname);
+ dbuf_printf (aBuf, "\t.ds\t0x%04x\n", (unsigned int) getSize (sym->type) & 0xffff);
+ }
+
+ }
+ }
+}
- if (options.debug || sym->level == 0)
- fprintf (afile, " == 0x%04x\n", SPEC_ADDR (sym->etype));
- fprintf (afile, "%s\t=\t0x%04x\n",
- sym->rname,
- SPEC_ADDR (sym->etype));
- }
- else
- {
- if (options.debug || sym->level == 0)
- fprintf (afile, "==.\n");
-
- /* allocate space */
- fprintf (afile, "%s:\n", sym->rname);
- fprintf (afile, "\t.ds\t0x%04x\n", (unsigned int) getSize (sym->type) & 0xffff);
- }
+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 */
/*-----------------------------------------------------------------*/
void
picglue ()
{
+ char udata_name[80];
+ FILE *asmFile;
+ struct dbuf_s ovrBuf;
+ struct dbuf_s vBuf;
- FILE *vFile;
- FILE *asmFile;
- FILE *ovrFile = tempfile();
+ dbuf_init(&ovrBuf, 4096);
+ dbuf_init(&vBuf, 4096);
- addSetHead(&tmpfileSet,ovrFile);
- pCodeInitRegisters();
+ pCodeInitRegisters();
- if (mainf && IFFUNC_HASBODY(mainf->type)) {
+ /* check for main() */
+ mainf = newSymbol ("main", 0);
+ mainf->block = 0;
+ mainf = findSymWithLevel (SymbolTab, mainf);
- pBlock *pb = newpCodeChain(NULL,'X',newpCodeCharP("; Starting pCode block"));
- addpBlock(pb);
+ if (!mainf || !IFFUNC_HASBODY(mainf->type))
+ {
+ /* main missing -- import stack from main module */
+ //fprintf (stderr, "main() missing -- assuming we are NOT the main module\n");
+ pic14_options.isLibrarySource = 1;
+ }
- /* entry point @ start of CSEG */
- addpCode2pBlock(pb,newpCodeLabel("__sdcc_program_startup",-1));
- /* put in the call to main */
- addpCode2pBlock(pb,newpCode(POC_CALL,newpCodeOp("_main",PO_STR)));
+#if 0
+ if (mainf && IFFUNC_HASBODY(mainf->type)) {
+
+ pBlock *pb = newpCodeChain(NULL,'X',newpCodeCharP("; Starting pCode block"));
+ addpBlock(pb);
+
+ /* entry point @ start of CSEG */
+ addpCode2pBlock(pb,newpCodeLabel("__sdcc_program_startup",-1));
+ /* put in the call to main */
+ addpCode2pBlock(pb,newpCode(POC_CALL,newpCodeOp("_main",PO_STR)));
+
+ if (options.mainreturn) {
+
+ addpCode2pBlock(pb,newpCodeCharP(";\treturn from main will return to caller\n"));
+ addpCode2pBlock(pb,newpCode(POC_RETURN,NULL));
+
+ } else {
+
+ addpCode2pBlock(pb,newpCodeCharP(";\treturn from main will lock up\n"));
+ addpCode2pBlock(pb,newpCode(POC_GOTO,newpCodeOp("$",PO_STR)));
+
+ }
+ }
+#endif
+
+ /* At this point we've got all the code in the form of pCode structures */
+ /* Now it needs to be rearranged into the order it should be placed in the */
+ /* code space */
+
+ movepBlock2Head('P'); // Last
+ movepBlock2Head(code->dbName);
+ movepBlock2Head('X');
+ movepBlock2Head(statsg->dbName); // First
+
+
+ /* print the global struct definitions */
+ if (options.debug)
+ cdbStructBlock (0);
+
+ /* emit code for the all the variables declared */
+ pic14emitMaps ();
+ /* do the overlay segments */
+ pic14emitOverlay(&ovrBuf);
+
+ /* PENDING: this isnt the best place but it will do */
+ if (port->general.glue_up_main) {
+ /* create the interrupt vector table */
+ pic14createInterruptVect (&vBuf);
+ }
+
+ AnalyzepCode('*');
+
+ ReuseReg(); // ReuseReg where call tree permits
+
+ InlinepCode();
+
+ AnalyzepCode('*');
+
+ pcode_test();
+
+
+ /* now put it all together into the assembler file */
+ /* create the assembler file name */
+
+ if ((noAssemble || options.c1mode) && fullDstFileName)
+ {
+ sprintf (buffer, fullDstFileName);
+ }
+ else
+ {
+ sprintf (buffer, dstFileName);
+ strcat (buffer, ".asm");
+ }
+
+ if (!(asmFile = fopen (buffer, "w"))) {
+ werror (E_FILE_OPEN_ERR, buffer);
+ exit (1);
+ }
- if (options.mainreturn) {
+ /* prepare statistics */
+ resetpCodeStatistics ();
+
+ /* initial comments */
+ pic14initialComments (asmFile);
+
+ /* print module name */
+ fprintf (asmFile, ";\t.module %s\n", moduleName);
+
+ /* Let the port generate any global directives, etc. */
+ if (port->genAssemblerPreamble)
+ {
+ port->genAssemblerPreamble(asmFile);
+ }
- addpCode2pBlock(pb,newpCodeCharP(";\treturn from main will return to caller\n"));
- addpCode2pBlock(pb,newpCode(POC_RETURN,NULL));
+ /* 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");
+ fprintf (asmFile, "%s", iComments2);
+ dbuf_write_and_destroy (&sfr->oBuf, asmFile);
+
+
+ if (udata_section_name) {
+ sprintf(udata_name,"%s",udata_section_name);
+ } else {
+ sprintf(udata_name,"data_%s",moduleName);
+ }
+ fprintf (asmFile, "%s", iComments2);
+ fprintf (asmFile, "; udata\n");
+ fprintf (asmFile, "%s", iComments2);
+ fprintf (asmFile, "%s\tudata\n", udata_name);
+ dbuf_write_and_destroy(&data->oBuf, asmFile);
+
+ /* Put all variables into a cblock */
+ AnalyzeBanking();
- } else {
+ /* print the locally defined variables in this module */
+ writeUsedRegs(asmFile);
+ pic14printLocals (asmFile);
+
+ /* create the overlay segments */
+ fprintf (asmFile, "%s", iComments2);
+ fprintf (asmFile, "; overlayable items in internal ram \n");
+ fprintf (asmFile, "%s", iComments2);
+ dbuf_write_and_destroy (&ovrBuf, asmFile);
+
+#if 0
+
+ /* create the stack segment MOF */
+ if (mainf && IFFUNC_HASBODY(mainf->type)) {
+ fprintf (asmFile, "%s", iComments2);
+ fprintf (asmFile, "; Stack segment in internal ram \n");
+ fprintf (asmFile, "%s", iComments2);
+ fprintf (asmFile, ";\t.area\tSSEG\t(DATA)\n"
+ ";__start__stack:\n;\t.ds\t1\n\n");
+ }
+
+ /* create the idata segment */
+ fprintf (asmFile, "%s", iComments2);
+ fprintf (asmFile, "; indirectly addressable internal ram data\n");
+ fprintf (asmFile, "%s", iComments2);
+ dbuf_write_and_destroy (&idata->oBuf, asmFile);
+
+ /* if external stack then reserve space of it */
+ if (mainf && IFFUNC_HASBODY(mainf->type) && options.useXstack ) {
+ fprintf (asmFile, "%s", iComments2);
+ fprintf (asmFile, "; external stack \n");
+ fprintf (asmFile, "%s", iComments2);
+ fprintf (asmFile,";\t.area XSEG (XDATA)\n"); /* MOF */
+ fprintf (asmFile,";\t.ds 256\n");
+ }
+
+ /* copy xtern ram data */
+ fprintf (asmFile, "%s", iComments2);
+ fprintf (asmFile, "; external ram data\n");
+ fprintf (asmFile, "%s", iComments2);
+ dbuf_write_and_destroy (&xdata->oBuf, asmFile);
- addpCode2pBlock(pb,newpCodeCharP(";\treturn from main will lock up\n"));
- addpCode2pBlock(pb,newpCode(POC_GOTO,newpCodeOp("$",PO_STR)));
+#endif
+
+ /* copy the bit segment */
+ fprintf (asmFile, "%s", iComments2);
+ fprintf (asmFile, "; bit data\n");
+ fprintf (asmFile, "%s", iComments2);
+ dbuf_write_and_destroy (&bit->oBuf, asmFile);
+
+ /* emit initialized data */
+ showAllMemmaps(asmFile);
+
+ /* copy the interrupt vector table */
+ if (mainf && IFFUNC_HASBODY(mainf->type))
+ dbuf_write_and_destroy (&vBuf, asmFile);
+ else
+ dbuf_destroy(&vBuf);
+
+ /* create interupt ventor handler */
+ pic14_emitInterruptHandler (asmFile);
+
+ /* copy over code */
+ fprintf (asmFile, "%s", iComments2);
+ fprintf (asmFile, "; code\n");
+ fprintf (asmFile, "%s", iComments2);
+ fprintf (asmFile, "code_%s\t%s\n", moduleName, port->mem.code_name);
+
+ /* unknown */
+ copypCode(asmFile, 'X');
+
+ /* _main function */
+ copypCode(asmFile, 'M');
+
+ /* other functions */
+ copypCode(asmFile, code->dbName);
+
+ /* unknown */
+ copypCode(asmFile, 'P');
- }
- }
+ dumppCodeStatistics (asmFile);
+
+ fprintf (asmFile,"\tend\n");
+
+ fclose (asmFile);
+}
+/*
+ * Deal with initializers.
+ */
+#undef DEBUGprintf
+#if 0
+// debugging output
+#define DEBUGprintf printf
+#else
+// be quiet
+#define DEBUGprintf 1 ? (void)0 : (void)printf
+#endif
- /* At this point we've got all the code in the form of pCode structures */
- /* Now it needs to be rearranged into the order it should be placed in the */
- /* code space */
- movepBlock2Head('P'); // Last
- movepBlock2Head(code->dbName);
- movepBlock2Head('X');
- movepBlock2Head(statsg->dbName); // First
+void ast_print (ast * tree, FILE *outfile, int indent);
+#if 0
+/*
+ * Emit all memmaps.
+ */
+static void
+showInitList(initList *list, int level)
+{
+ static const char *list_type[] = { "INIT_NODE", "INIT_DEEP", "INIT_HOLE" };
+ static const char *ast_type[] = { "EX_OP", "EX_VALUE", "EX_LINK", "EX_OPERAND" };
+ struct ast *ast;
+ while (list) {
+ printf (" %d: type %u (%s), init %p, next %p\n", level, list->type, list_type[list->type], list->init.node, list->next);
+ if (list->type == INIT_DEEP) {
+ showInitList(list->init.deep, level + 1);
+ } else if (list->type == INIT_NODE) {
+ ast = list->init.node;
+ printf (" type %u (%s), level %d, block %d, seqPoint %d\n",
+ ast->type, ast_type[ast->type], ast->level, ast->block, ast->seqPoint);
+ if (ast->type == EX_VALUE) {
+ printf (" VAL %lf\n", floatFromVal(ast->opval.val));
+ } else if (ast->type == EX_LINK) {
+ printTypeChain(ast->opval.lnk, NULL);
+ } else if (ast->type == EX_OP) {
+ printf (" OP %u\n", ast->opval.op);
+ }
+ } // if
+ list = list->next;
+ } // while
+}
+#endif
- /* print the global struct definitions */
- if (options.debug)
- cdbStructBlock (0);
+/*
+ * DEBUG: Print a value.
+ */
+void
+printVal(value *val)
+{
+ printf ("value %p: name %s, type %p, etype %p, sym %s, vArgs %d, lit 0x%lx/%ld\n",
+ val, val->name, val->type, val->etype,
+ val->sym ? val->sym->name : NULL, val->vArgs,
+ (long)floatFromVal(val), (long)floatFromVal(val));
+ printTypeChain(val->type, stdout);
+ printf ("\n");
+ printTypeChain(val->etype, stdout);
+ printf ("\n");
+}
- vFile = tempfile();
- /* PENDING: this isnt the best place but it will do */
- if (port->general.glue_up_main) {
- /* create the interrupt vector table */
- pic14createInterruptVect (vFile);
- }
+//prototype from ../SDCCicode.c
+operand *operandFromAst (ast * tree,int lvl);
- addSetHead(&tmpfileSet,vFile);
+char *
+parseIvalAst (ast *node, int *inCodeSpace) {
+#define LEN 4096
+ char *buffer = NULL;
+ char *left, *right;
- /* emit code for the all the variables declared */
- pic14emitMaps ();
- /* do the overlay segments */
- pic14emitOverlay(ovrFile);
-
-
- AnalyzepCode('*');
-
- //#ifdef PCODE_DEBUG
- //printCallTree(stderr);
- //#endif
-
- InlinepCode();
-
- AnalyzepCode('*');
-
- pcode_test();
-
+ if (IS_AST_VALUE(node)) {
+ value *val = AST_VALUE(node);
+ symbol *sym = IS_AST_SYM_VALUE(node) ? AST_SYMBOL(node) : NULL;
+ if (inCodeSpace && val->type
+ && (IS_FUNC(val->type) || IS_CODE(getSpec(val->type))))
+ {
+ *inCodeSpace = 1;
+ }
+ if (inCodeSpace && sym
+ && (IS_FUNC(sym->type)
+ || IS_CODE(getSpec(sym->type))))
+ {
+ *inCodeSpace = 1;
+ }
+
+ DEBUGprintf ("%s: AST_VALUE\n", __FUNCTION__);
+ if (IS_AST_LIT_VALUE(node)) {
+ buffer = Safe_alloc(LEN);
+ SNPRINTF(buffer, LEN, "0x%lx", (long)AST_LIT_VALUE(node));
+ } else if (IS_AST_SYM_VALUE(node)) {
+ assert ( AST_SYMBOL(node) );
+ /*
+ printf ("sym %s: ", AST_SYMBOL(node)->rname);
+ printTypeChain(AST_SYMBOL(node)->type, stdout);
+ printTypeChain(AST_SYMBOL(node)->etype, stdout);
+ printf ("\n---sym %s: done\n", AST_SYMBOL(node)->rname);
+ */
+ buffer = Safe_strdup(AST_SYMBOL(node)->rname);
+ } else {
+ assert ( !"Invalid values type for initializers in AST." );
+ }
+ } else if (IS_AST_OP(node)) {
+ DEBUGprintf ("%s: AST_OP\n", __FUNCTION__);
+ switch (node->opval.op) {
+ case CAST:
+ assert (node->right);
+ buffer = parseIvalAst(node->right, inCodeSpace);
+ DEBUGprintf ("%s: %s\n", __FUNCTION__, buffer);
+ break;
+ case '&':
+ assert ( node->left && !node->right );
+ buffer = parseIvalAst(node->left, inCodeSpace);
+ DEBUGprintf ("%s: %s\n", __FUNCTION__, buffer);
+ break;
+ case '+':
+ assert (node->left && node->right );
+ left = parseIvalAst(node->left, inCodeSpace);
+ right = parseIvalAst(node->right, inCodeSpace);
+ buffer = Safe_alloc(LEN);
+ SNPRINTF(buffer, LEN, "(%s + %s)", left, right);
+ DEBUGprintf ("%s: %s\n", __FUNCTION__, buffer);
+ Safe_free(left);
+ Safe_free(right);
+ break;
+ case '[':
+ assert ( node->left && node->right );
+ assert ( IS_AST_VALUE(node->left) && AST_VALUE(node->left)->sym );
+ right = parseIvalAst(node->right, inCodeSpace);
+ buffer = Safe_alloc(LEN);
+ SNPRINTF(buffer, LEN, "(%s + %u * %s)",
+ AST_VALUE(node->left)->sym->rname, getSize(AST_VALUE(node->left)->type), right);
+ Safe_free(right);
+ DEBUGprintf ("%s: %s\n", __FUNCTION__, &buffer[0]);
+ break;
+ default:
+ assert ( !"Unhandled operation in initializer." );
+ break;
+ }
+ } else {
+ assert ( !"Invalid construct in initializer." );
+ }
+
+ return (buffer);
+}
- /* now put it all together into the assembler file */
- /* create the assembler file name */
+/*
+ * Emit the section preamble, absolute location (if any) and
+ * symbol name(s) for intialized data.
+ */
+static int
+emitIvalLabel(FILE *of, symbol *sym)
+{
+ char *segname;
+ static int in_code = 0;
- if ((noAssemble || options.c1mode) && fullDstFileName)
- {
- sprintf (buffer, fullDstFileName);
- }
- else
- {
- sprintf (buffer, dstFileName);
- strcat (buffer, ".asm");
+ if (sym) {
+ // code or data space?
+ if (IS_CODE(getSpec(sym->type))) {
+ segname = "code";
+ in_code = 1;
+ } else {
+ segname = "idata";
+ in_code = 0;
+ }
+ fprintf(of, "\nD_%s_%s\t%s", moduleName, sym->name, segname);
+ if (SPEC_ABSA(getSpec(sym->type))) {
+ // specify address for absolute symbols
+ fprintf(of, "\t0x%04X", SPEC_ADDR(getSpec(sym->type)));
+ } // if
+ fprintf(of, "\n%s\n", sym->rname);
}
+ return (in_code);
+}
- if (!(asmFile = fopen (buffer, "w"))) {
- werror (E_FILE_OPEN_ERR, buffer);
- exit (1);
- }
+char *get_op(pCodeOp *pcop,char *buffer, size_t size);
+/*
+ * Actually emit the initial values in .asm format.
+ */
+static void
+emitIvals(FILE *of, symbol *sym, initList *list, long lit, int size)
+{
+ int i;
+ ast *node;
+ operand *op;
+ value *val = NULL;
+ int inCodeSpace = 0;
+ char *str = NULL;
+ int in_code;
- /* initial comments */
- pic14initialComments (asmFile);
+ assert (size <= sizeof(long));
+ assert (!list || (list->type == INIT_NODE));
+ node = list ? list->init.node : NULL;
- /* print module name */
- fprintf (asmFile, ";\t.module %s\n", moduleName);
+ in_code = emitIvalLabel(of, sym);
+ if (!in_code) fprintf (of, "\tdb\t");
+
+ if (!node) {
+ // initialize as zero
+ for (i=0; i < size; i++) {
+ if (in_code) {
+ fprintf (of, "\tretlw 0x00");
+ } else {
+ fprintf (of, "%s0x00", (i == 0) ? "" : ", ");
+ }
+ } // for
+ fprintf (of, "\n");
+ return;
+ } // if
- /* Let the port generate any global directives, etc. */
- if (port->genAssemblerPreamble)
- {
- port->genAssemblerPreamble(asmFile);
+ op = NULL;
+ if (constExprTree(node) && (val = constExprValue(node, 0))) {
+ op = operandFromValue(val);
+ DEBUGprintf ("%s: constExpr ", __FUNCTION__);
+ //printVal(val);
+ } else if (IS_AST_VALUE(node)) {
+ op = operandFromAst(node, 0);
+ } else if (IS_AST_OP(node)) {
+ str = parseIvalAst(node, &inCodeSpace);
+ DEBUGprintf("%s: AST_OP: %s\n", __FUNCTION__, str);
+ op = NULL;
+ } else {
+ assert ( !"Unhandled construct in intializer." );
}
- /* print the global variables in this module */
- pic14printPublics (asmFile);
+ if (op) {
+ aopOp(op, NULL, 1);
+ assert(AOP(op));
+ //printOperand(op, of);
+ }
+ for (i=0; i < size; i++) {
+ char *text = op ? aopGet(AOP(op), i, 0, 0)
+ : get_op(newpCodeOpImmd(str, i, 0, inCodeSpace, 0), NULL, 0);
+ if (in_code) {
+ fprintf (of, "\tretlw %s\n", text);
+ } else {
+ fprintf (of, "%s%s", (i == 0) ? "" : ", ", text);
+ }
+ } // for
+ fprintf (of, "\n");
+}
- /* copy the sfr segment */
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; special function registers\n");
- fprintf (asmFile, "%s", iComments2);
- copyFile (asmFile, sfr->oFile);
+/*
+ * For UNIONs, we first have to find the correct alternative to map the
+ * initializer to. This function maps the structure of the initializer to
+ * the UNION members recursively.
+ * Returns the type of the first `fitting' member.
+ */
+static sym_link *
+matchIvalToUnion (initList *list, sym_link *type, int size)
+{
+ symbol *sym;
+ assert (type);
- /* Put all variables into a cblock */
- AnalyzeBanking();
- writeUsedRegs(asmFile);
-
- /* create the overlay segments */
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; overlayable items in internal ram \n");
- fprintf (asmFile, "%s", iComments2);
- copyFile (asmFile, ovrFile);
-
- /* create the stack segment MOF */
- if (mainf && IFFUNC_HASBODY(mainf->type)) {
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; Stack segment in internal ram \n");
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, ";\t.area\tSSEG\t(DATA)\n"
- ";__start__stack:\n;\t.ds\t1\n\n");
- }
-
- /* create the idata segment */
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; indirectly addressable internal ram data\n");
- fprintf (asmFile, "%s", iComments2);
- copyFile (asmFile, idata->oFile);
-
- /* if external stack then reserve space of it */
- if (mainf && IFFUNC_HASBODY(mainf->type) && options.useXstack ) {
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; external stack \n");
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile,";\t.area XSEG (XDATA)\n"); /* MOF */
- fprintf (asmFile,";\t.ds 256\n");
- }
-
-
- /* copy xtern ram data */
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; external ram data\n");
- fprintf (asmFile, "%s", iComments2);
- copyFile (asmFile, xdata->oFile);
-
+ if (IS_PTR(type) || IS_CHAR(type) || IS_INT(type) || IS_LONG(type)
+ || IS_FLOAT(type))
+ {
+ if (!list || (list->type == INIT_NODE)) {
+ DEBUGprintf ("OK, simple type\n");
+ return (type);
+ } else {
+ DEBUGprintf ("ERROR, simple type\n");
+ return (NULL);
+ }
+ } else if (IS_BITFIELD(type)) {
+ if (!list || (list->type == INIT_NODE)) {
+ DEBUGprintf ("OK, bitfield\n");
+ return (type);
+ } else {
+ DEBUGprintf ("ERROR, bitfield\n");
+ return (NULL);
+ }
+ } else if (IS_STRUCT(type) && SPEC_STRUCT(getSpec(type))->type == STRUCT) {
+ if (!list || (list->type == INIT_DEEP)) {
+ if (list) list = list->init.deep;
+ sym = SPEC_STRUCT(type)->fields;
+ while (sym) {
+ DEBUGprintf ("Checking STRUCT member %s\n", sym->name);
+ if (!matchIvalToUnion(list, sym->type, 0)) {
+ DEBUGprintf ("ERROR, STRUCT member %s\n", sym->name);
+ return (NULL);
+ }
+ if (list) list = list->next;
+ sym = sym->next;
+ } // while
+
+ // excess initializers?
+ if (list) {
+ DEBUGprintf ("ERROR, excess initializers\n");
+ return (NULL);
+ }
+
+ DEBUGprintf ("OK, struct\n");
+ return (type);
+ }
+ return (NULL);
+ } else if (IS_STRUCT(type) && SPEC_STRUCT(getSpec(type))->type == UNION) {
+ if (!list || (list->type == INIT_DEEP)) {
+ if (list) list = list->init.deep;
+ sym = SPEC_STRUCT(type)->fields;
+ while (sym) {
+ DEBUGprintf ("Checking UNION member %s.\n", sym->name);
+ if (((IS_STRUCT(sym->type) || getSize(sym->type) == size))
+ && matchIvalToUnion(list, sym->type, size))
+ {
+ DEBUGprintf ("Matched UNION member %s.\n", sym->name);
+ return (sym->type);
+ }
+ sym = sym->next;
+ } // while
+ } // if
+ // no match found
+ DEBUGprintf ("ERROR, no match found.\n");
+ return (NULL);
+ } else {
+ assert ( !"Unhandled type in UNION." );
+ }
- /* copy the bit segment */
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; bit data\n");
- fprintf (asmFile, "%s", iComments2);
- copyFile (asmFile, bit->oFile);
+ assert ( !"No match found in UNION for the given initializer structure." );
+ return (NULL);
+}
+/*
+ * Parse the type and its initializer and emit it (recursively).
+ */
+static void
+emitInitVal(FILE *of, symbol *topsym, sym_link *my_type, initList *list)
+{
+ symbol *sym;
+ int size, i;
+ long lit;
- fprintf (asmFile, "\tORG 0\n");
+ size = getSize(my_type);
- /* copy the interrupt vector table */
- if (mainf && IFFUNC_HASBODY(mainf->type)) {
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; interrupt vector \n");
- fprintf (asmFile, "%s", iComments2);
- copyFile (asmFile, vFile);
- }
-
- /* copy global & static initialisations */
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; global & static initialisations\n");
- fprintf (asmFile, "%s", iComments2);
-
- /* Everywhere we generate a reference to the static_name area,
- * (which is currently only here), we immediately follow it with a
- * definition of the post_static_name area. This guarantees that
- * the post_static_name area will immediately follow the static_name
- * area.
- */
- fprintf (asmFile, ";\t.area %s\n", port->mem.static_name); /* MOF */
- fprintf (asmFile, ";\t.area %s\n", port->mem.post_static_name);
- fprintf (asmFile, ";\t.area %s\n", port->mem.static_name);
-
- if (mainf && IFFUNC_HASBODY(mainf->type)) {
- fprintf (asmFile,"__sdcc_gsinit_startup:\n");
- /* if external stack is specified then the
- higher order byte of the xdatalocation is
- going into P2 and the lower order going into
- spx */
- if (options.useXstack) {
- fprintf(asmFile,";\tmov\tP2,#0x%02x\n",
- (((unsigned int)options.xdata_loc) >> 8) & 0xff);
- fprintf(asmFile,";\tmov\t_spx,#0x%02x\n",
- (unsigned int)options.xdata_loc & 0xff);
+ if (IS_PTR(my_type)) {
+ DEBUGprintf ("(pointer, %d byte) %p\n", size, list ? (void *)(long)list2int(list) : NULL);
+ emitIvals(of, topsym, list, 0, size);
+ return;
}
- }
-
- if (port->general.glue_up_main && mainf && IFFUNC_HASBODY(mainf->type))
- {
- /* This code is generated in the post-static area.
- * This area is guaranteed to follow the static area
- * by the ugly shucking and jiving about 20 lines ago.
- */
- fprintf(asmFile, ";\t.area %s\n", port->mem.post_static_name);
- fprintf (asmFile,";\tljmp\t__sdcc_program_startup\n");
+ if (IS_ARRAY(my_type)) {
+ DEBUGprintf ("(array, %d items, %d byte) below\n", DCL_ELEM(my_type), size);
+ assert (!list || list->type == INIT_DEEP);
+ if (list) list = list->init.deep;
+ for (i = 0; i < DCL_ELEM(my_type); i++) {
+ emitInitVal(of, topsym, my_type->next, list);
+ topsym = NULL;
+ if (list) list = list->next;
+ } // for i
+ return;
}
+
+ if (IS_FLOAT(my_type)) {
+ // float, 32 bit
+ DEBUGprintf ("(float, %d byte) %lf\n", size, list ? list2int(list) : 0.0);
+ emitIvals(of, topsym, list, 0, size);
+ return;
+ }
+
+ if (IS_CHAR(my_type) || IS_INT(my_type) || IS_LONG(my_type)) {
+ // integral type, 8, 16, or 32 bit
+ DEBUGprintf ("(integral, %d byte) 0x%lx/%ld\n", size, list ? (long)list2int(list) : 0, list ? (long)list2int(list) : 0);
+ emitIvals(of, topsym, list, 0, size);
+ return;
- /* copy over code */
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; code\n");
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, ";\t.area %s\n", port->mem.code_name);
-
- //copyFile (stderr, code->oFile);
-
- copypCode(asmFile, 'I');
- copypCode(asmFile, statsg->dbName);
- copypCode(asmFile, 'X');
- copypCode(asmFile, 'M');
- copypCode(asmFile, code->dbName);
- copypCode(asmFile, 'P');
-
-
- fprintf (asmFile,"\tend\n");
-
- fclose (asmFile);
+ } else if (IS_STRUCT(my_type) && SPEC_STRUCT(my_type)->type == STRUCT) {
+ // struct
+ DEBUGprintf ("(struct, %d byte) handled below\n", size);
+ assert (!list || (list->type == INIT_DEEP));
+
+ // iterate over struct members and initList
+ if (list) list = list->init.deep;
+ sym = SPEC_STRUCT(my_type)->fields;
+ while (sym) {
+ long bitfield = 0;
+ int len = 0;
+ if (IS_BITFIELD(sym->type)) {
+ while (sym && IS_BITFIELD(sym->type)) {
+ assert (!list || ((list->type == INIT_NODE)
+ && IS_AST_LIT_VALUE(list->init.node)));
+ lit = list ? list2int(list) : 0;
+ DEBUGprintf ( "(bitfield member) %02lx (%d bit, starting at %d, bitfield %02lx)\n",
+ lit, SPEC_BLEN(getSpec(sym->type)),
+ SPEC_BSTR(getSpec(sym->type)), bitfield);
+ bitfield |= (lit & ((1ul << SPEC_BLEN(getSpec(sym->type))) - 1)) << SPEC_BSTR(getSpec(sym->type));
+ len += SPEC_BLEN(getSpec(sym->type));
+
+ sym = sym->next;
+ if (list) list = list->next;
+ } // while
+ assert (len < sizeof (long) * 8); // did we overflow our initializer?!?
+ len = (len + 7) & ~0x07; // round up to full bytes
+ emitIvals(of, topsym, NULL, bitfield, len / 8);
+ topsym = NULL;
+ } // if
+
+ if (sym) {
+ emitInitVal(of, topsym, sym->type, list);
+ topsym = NULL;
+ sym = sym->next;
+ if (list) list = list->next;
+ } // if
+ } // while
+ if (list) {
+ assert ( !"Excess initializers." );
+ } // if
+ return;
+
+ } else if (IS_STRUCT(my_type) && SPEC_STRUCT(my_type)->type == UNION) {
+ // union
+ DEBUGprintf ("(union, %d byte) handled below\n", size);
+ assert (list && list->type == INIT_DEEP);
+
+ // iterate over union members and initList, try to map number and type of fields and initializers
+ my_type = matchIvalToUnion(list, my_type, size);
+ if (my_type) {
+ emitInitVal(of, topsym, my_type, list->init.deep);
+ topsym = NULL;
+ size -= getSize(my_type);
+ if (size > 0) {
+ // pad with (leading) zeros
+ emitIvals(of, NULL, NULL, 0, size);
+ }
+ return;
+ } // if
+
+ assert ( !"No UNION member matches the initializer structure.");
+ } else if (IS_BITFIELD(my_type)) {
+ assert ( !"bitfields should only occur in structs..." );
+
+ } else {
+ printf ("SPEC_NOUN: %d\n", SPEC_NOUN(my_type));
+ assert( !"Unhandled initialized type.");
+ }
+}
- rm_tmpfiles();
+/*
+ * Iterate over all memmaps and emit their contents (attributes, symbols).
+ */
+static void
+showAllMemmaps(FILE *of)
+{
+ memmap *maps[] = {
+ xstack, istack, code, data, pdata, xdata, xidata, xinit,
+ idata, bit, statsg, c_abs, x_abs, i_abs, d_abs,
+ sfr, sfrbit, reg, generic, overlay, eeprom, home };
+ memmap * map;
+ symbol *sym;
+ initList *list;
+ int i;
+
+ DEBUGprintf ("---begin memmaps---\n");
+ for (i = 0; i < sizeof(maps) / sizeof (memmap *); i++) {
+ map = maps[i];
+ //DEBUGprintf ("memmap %i: %p\n", i, map);
+ if (map) {
+ /*
+ DEBUGprintf (" pageno %c, sname %s, dbName %c, ptrType %d, slbl %d, sloc %u, fmap %u, paged %u, direct %u, bitsp %u, codesp %u, regsp %u, syms %p\n",
+ map->pageno, map->sname, map->dbName, map->ptrType, map->slbl,
+ map->sloc, map->fmap, map->paged, map->direct, map->bitsp,
+ map->codesp, map->regsp, map->syms);
+ */
+ for (sym = setFirstItem(map->syms); sym; sym = setNextItem(map->syms)) {
+ /*
+ fprintf (of, "; name %s, rname %s, level %d, block %d, key %d, local %d, ival %p\n",
+ sym->name, sym->rname, sym->level, sym->block, sym->key, sym->islocal, sym->ival);
+ */
+ list = sym->ival;
+ //if (list) showInitList(list, 0);
+ if (list) {
+ resolveIvalSym( list, sym->type );
+ emitInitVal(of, sym, sym->type, sym->ival);
+ }
+ } // for sym
+ } // if (map)
+ } // for i
+ DEBUGprintf ("---end of memmaps---\n");
}
+
projects / fw / sdcc / blobdiff