#include "pcode.h"
#include "newalloc.h"
#include "gen.h"
+#include "main.h"
+#include "device.h"
+#include "dbuf_string.h"
#ifdef WORDS_BIGENDIAN
#endif
#define BYTE_IN_LONG(x,b) ((x>>(8*_ENDIAN(b)))&0xff)
+#define IS_GLOBAL(sym) ((sym)->level == 0)
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 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
+
+/* dbufs for initialized data (idata and code sections),
+ * extern, and global declarations */
+struct dbuf_s *ivalBuf, *extBuf, *gloBuf, *gloDefBuf;
+
+static set *emitted = NULL;
+int pic14_stringInSet(const char *str, set **world, int autoAdd);
/*-----------------------------------------------------------------*/
/* aopLiteral - string from a literal value */
/*-----------------------------------------------------------------*/
-int pic14aopLiteral (value *val, int offset)
+unsigned int pic14aopLiteral (value *val, int offset)
{
union {
float f;
}
-/* 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;
+#if 0
+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;
-/*-------------------------------------------------------------------*/
-/* emitSymbolToFile - write a symbol definition only if it is not */
-/* already present */
-/*-------------------------------------------------------------------*/
-void
-emitSymbolToFile (FILE *of, const char *name, int size)
+ 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;
+}
+#endif
+
+static void
+emitPseudoStack(struct dbuf_s *oBuf, struct dbuf_s *oBufExt)
{
- const char *sym;
-
- /* check whether the symbol is already defined */
- for (sym = (const char *) setFirstItem (symbolsEmitted);
- sym;
- sym = (const char *) setNextItem (symbolsEmitted))
+ int shared, low, high, size, i;
+ PIC_device *pic;
+
+ /* 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. */
+ shared = pic14_getSharedStack(&low, &high, &size);
+ if (!pic14_options.isLibrarySource)
+ {
+ pic = pic14_getPIC();
+
+ dbuf_printf (oBuf, "\n");
+ 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
+ dbuf_printf (oBuf, "\n");
+
+ // 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 (oBufExt, "\n");
+ dbuf_printf (oBufExt, "\textern PSAVE\n");
+ dbuf_printf (oBufExt, "\textern SSAVE\n");
+ dbuf_printf (oBufExt, "\textern WSAVE\n");
+ for (i = size - 4; i >= 0; i--) {
+ char buffer[128];
+ SNPRINTF(&buffer[0], 127, "STK%02d", i);
+ dbuf_printf (oBufExt, "\textern %s\n", &buffer[0]);
+ pic14_stringInSet(&buffer[0], &emitted, 1);
+ } // for i
+ }
+ dbuf_printf (oBuf, "\n");
+}
+
+static int
+emitIfNew(struct dbuf_s *oBuf, set **emitted, const char *fmt,
+ const char *name)
+{
+ int wasPresent = pic14_stringInSet(name, emitted, 1);
+
+ if (!wasPresent) {
+ dbuf_printf (oBuf, fmt, name);
+ } // if
+ return (!wasPresent);
+}
+
+#define IS_DEFINED_HERE(sym) (!IS_EXTERN(sym->etype))
+extern int IS_CONFIG_ADDRESS( int addr );
+static void
+pic14_constructAbsMap (struct dbuf_s *oBuf, struct dbuf_s *gloBuf)
+{
+ 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 ))
{
- if (!strcmp (sym, name))
- {
- //fprintf (stderr, "%s: already emitted: %s\n", __FUNCTION__, name);
- return;
- }
- } // for
+ //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 */
+ 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, "UD_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);
+ }
- /* new symbol -- define it */
- //fprintf (stderr, "%s: emitting %s (%d)\n", __FUNCTION__, name, size);
- fprintf (of, "%s\tres\t%d\n", name, size);
- addSet (&symbolsEmitted, (void *) name);
+ /* initialized values are handled somewhere else */
+ if (sym->ival) continue;
+
+ /* emit STATUS as well as _STATUS, required for SFRs only */
+ //dbuf_printf (oBuf, "%s\tres\t0\n", sym->name);
+ dbuf_printf (oBuf, "%s\n", sym->rname);
+
+ if (IS_GLOBAL(sym) && !IS_STATIC(sym->etype)) {
+ //emitIfNew(gloBuf, &emitted, "\tglobal\t%s\n", sym->name);
+ emitIfNew(gloBuf, &emitted, "\tglobal\t%s\n", sym->rname);
+ } // if
+ } // for
+ dbuf_printf (oBuf, "\tres\t%d\n", size);
+ } // if
+ } // for i
}
+#if 0
/*-----------------------------------------------------------------*/
/* emitRegularMap - emit code for maps with no special cases */
/*-----------------------------------------------------------------*/
/* print the area name */
if (addPublics)
- fprintf (map->oFile, ";\t.area\t%s\n", map->sname);
+ 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)) {
!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)
{
if (!sym->level) /* global */
if (IS_STATIC (sym->etype))
- fprintf (map->oFile, "F%s_", moduleName); /* scope is file */
+ dbuf_printf (&map->oBuf, "F%s_", moduleName); /* scope is file */
else
- fprintf (map->oFile, "G_"); /* scope is global */
+ dbuf_printf (&map->oBuf, "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);
+ 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 (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));
+ //dbuf_printf (&map->oBuf,"; == 0x%04x\n",SPEC_ADDR (sym->etype));
- fprintf (map->oFile, "%s\tEQU\t0x%04x\n",
+ dbuf_printf (&map->oBuf, "%s\tEQU\t0x%04x\n",
sym->rname,
SPEC_ADDR (sym->etype));
}
}
else
{
- emitSymbolToFile (map->oFile, sym->rname, getSize (sym->type) & 0xffff);
+ 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++)
- fprintf (map->oFile, "\t%s_%d\n", sym->rname, i);
+ dbuf_printf (&map->oBuf, "\t%s_%d\n", sym->rname, i);
}
}
*/
}
- //fprintf (map->oFile, "\t.ds\t0x%04x\n", (unsigned int)getSize (sym->type) & 0xffff);
+ //dbuf_printf (&map->oBuf, "\t.ds\t0x%04x\n", (unsigned int)getSize (sym->type) & 0xffff);
}
-
+
+ /* if it has a initial value then do it only if
+ it is a global variable */
+ if (sym->ival) {
+ /* mark symbol as already defined */
+ pic14_stringInSet(sym->name, &emitted, 1);
+ pic14_stringInSet(sym->rname, &emitted, 1);
+ }
+#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));
- codeOutFile = statsg->oFile;
+ codeOutBuf = &statsg->oBuf;
GcurMemmap = statsg;
eBBlockFromiCode (iCodeFromAst (ival));
sym->ival = NULL;
}
+#endif
}
}
+#endif
+#if 0
/*-----------------------------------------------------------------*/
/* printIvalType - generates ival for int/char */
/*-----------------------------------------------------------------*/
return;
}
}
+#endif
+#if 0
extern void pCodeConstString(char *name, char *value);
/*-----------------------------------------------------------------*/
/* emitStaticSeg - emitcode for the static segment */
{
symbol *sym;
- fprintf (map->oFile, ";\t.area\t%s\n", map->sname);
+ dbuf_printf (&map->oBuf, ";\t.area\t%s\n", map->sname);
//fprintf(stderr, "%s\n",__FUNCTION__);
if (!sym->level)
{ /* global */
if (IS_STATIC (sym->etype))
- fprintf (code->oFile, "F%s_", moduleName); /* scope is file */
+ dbuf_printf (&code->oBuf, "F%s_", moduleName); /* scope is file */
else
- fprintf (code->oFile, "G_"); /* scope is global */
+ dbuf_printf (&code->oBuf, "G_"); /* scope is global */
}
else
/* symbol is local */
- fprintf (code->oFile, "L%s_",
+ dbuf_printf (&code->oBuf, "L%s_",
(sym->localof ? sym->localof->name : "-null-"));
- fprintf (code->oFile, "%s_%d_%d", sym->name, sym->level, sym->block);
+ dbuf_printf (&code->oBuf, "%s_%d_%d", sym->name, sym->level, sym->block);
}
if (SPEC_ABSA (sym->etype))
{
if (options.debug || sym->level == 0)
- fprintf (code->oFile, " == 0x%04x\n", SPEC_ADDR (sym->etype));
+ dbuf_printf (&code->oBuf, " == 0x%04x\n", SPEC_ADDR (sym->etype));
- fprintf (code->oFile, "%s\t=\t0x%04x\n",
+ dbuf_printf (&code->oBuf, "%s\t=\t0x%04x\n",
sym->rname,
SPEC_ADDR (sym->etype));
}
else
{
if (options.debug || sym->level == 0)
- fprintf (code->oFile, " == .\n");
+ dbuf_printf (&code->oBuf, " == .\n");
/* if it has an initial value */
if (sym->ival)
{
+#if 0
pBlock *pb;
- fprintf (code->oFile, "%s:\n", sym->rname);
+ dbuf_printf (&code->oBuf, "%s:\n", sym->rname);
noAlloc++;
resolveIvalSym (sym->ival, sym->type);
- //printIval (sym, sym->type, sym->ival, code->oFile);
+ //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 */
- fprintf (code->oFile, "%s:\n", sym->rname);
+ 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)
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);
+ dbuf_printf (&code->oBuf, "\t.ds\t0x%04x\n", (unsigned int) getSize (sym->type) & 0xffff);
}
}
}
}
+#endif
+#if 0
/*-----------------------------------------------------------------*/
/* emitMaps - emits the code for the data portion the code */
/*-----------------------------------------------------------------*/
static void
pic14emitMaps ()
{
+ pic14_constructAbsMap (&sfr->oBuf);
+ emitPseudoStack(&sfr->oBuf, &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, FALSE, FALSE);
+ pic14emitRegularMap (sfr, TRUE, FALSE);
pic14emitRegularMap (sfrbit, FALSE, FALSE);
pic14emitRegularMap (code, TRUE, FALSE);
pic14emitStaticSeg (statsg);
+ pic14emitStaticSeg (c_abs);
}
+#endif
/*-----------------------------------------------------------------*/
/* createInterruptVect - creates the interrupt vector */
/*-----------------------------------------------------------------*/
+pCodeOp *popGetExternal (char *str);
static void
-pic14createInterruptVect (FILE * vFile)
+pic14createInterruptVect (struct dbuf_s * vBuf)
{
mainf = newSymbol ("main", 0);
mainf->block = 0;
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, "\tgoto\t__sdcc_gsinit_startup\n");
+ 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");
}
}
+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;
+}
+
+#if 0
+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;
+}
+#endif
+
+#if 0
+/*-------------------------------------------------------------------*/
+/* 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;
+
+ /* 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) {
+ 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)
+ {
+ /* 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);
+ }
+ }
+}
+#endif
+
+
+#if 0
/*-----------------------------------------------------------------*/
/* 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, "; public 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);
+ }
+ }
+}
+#endif
+
+/*
+ * Interface to BANKSEL generation.
+ * This function should return != 0 iff str1 and str2 denote operands that
+ * are known to be allocated into the same bank. Consequently, there will
+ * be no BANKSEL emitted if str2 is accessed while str1 has been used to
+ * select the current bank just previously.
+ *
+ * If in doubt, return 0.
+ */
+int
+pic14_operandsAllocatedInSameBank(const char *str1, const char *str2) {
+ // see pic14printLocals
+
+ if (getenv("SDCC_PIC14_SPLIT_LOCALS")) {
+ // no clustering applied, each register resides in its own bank
+ } else {
+ // check whether BOTH names are local registers
+ // XXX: This is some kind of shortcut, should be safe...
+ // In this model, all r0xXXXX are allocated into a single section
+ // per file, so no BANKSEL required if accessing a r0xXXXX after a
+ // (different) r0xXXXX. Works great for multi-byte operands.
+ if (str1 && str2 && str1[0] == 'r' && str2[0] == 'r') return (1);
+ } // if
+
+ // assume operands in different banks
+ return (0);
+}
+
+static void
+pic14printLocals (struct dbuf_s *oBuf)
+{
+ set *allregs[6] = { dynAllocRegs/*, dynStackRegs, dynProcessorRegs*/,
+ dynDirectRegs, dynDirectBitRegs/*, dynInternalRegs */ };
+ regs *reg;
+ int i, is_first = 1;
+ static unsigned sectionNr = 0;
+
+ /* 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) {
+ if (!pic14_stringInSet(reg->name, &emitted, 1)) {
+ if (reg->isFixed) {
+ // Should not happen, really...
+ assert ( !"Compiler-assigned variables should not be pinned... This is a bug." );
+ dbuf_printf(oBuf, "UDL_%s_%u\tudata\t0x%04X\n%s\tres\t%d\n",
+ moduleName, sectionNr++, reg->address, reg->name, reg->size);
+ } else {
+ if (getenv("SDCC_PIC14_SPLIT_LOCALS")) {
+ // assign each local register into its own section
+ dbuf_printf(oBuf, "UDL_%s_%u\tudata\n%s\tres\t%d\n",
+ moduleName, sectionNr++, reg->name, reg->size);
+ } else {
+ // group all local registers into a single section
+ // This should greatly improve BANKSEL generation...
+ if (is_first) {
+ dbuf_printf(oBuf, "UDL_%s_%u\tudata\n", moduleName, sectionNr++);
+ is_first = 0;
+ }
+ dbuf_printf(oBuf, "%s\tres\t%d\n", reg->name, reg->size);
+ }
+ }
}
- }
+ }
+ reg->isEmitted = 1;
+ } // for
+ } // for
}
/*-----------------------------------------------------------------*/
/* emitOverlay - will emit code for the overlay stuff */
/*-----------------------------------------------------------------*/
static void
-pic14emitOverlay (FILE * afile)
+pic14emitOverlay (struct dbuf_s * aBuf)
{
set *ovrset;
/* the hack below, fixes translates for devices which
* only have udata_shr memory */
- fprintf (afile, "%s\t%s\n",
+ dbuf_printf (aBuf, "%s\t%s\n",
(elementsInSet(ovrSetSets)?"":";"),
port->mem.overlay_name);
/* I don't think this applies to us. We are using gpasm. CRF */
- fprintf (afile, ";\t.area _DUMMY\n");
+ dbuf_printf (aBuf, ";\t.area _DUMMY\n");
/* output the area informtion */
- fprintf (afile, ";\t.area\t%s\n", port->mem.overlay_name); /* MOF */
+ dbuf_printf (aBuf, ";\t.area\t%s\n", port->mem.overlay_name); /* MOF */
}
for (sym = setFirstItem (ovrset); sym;
if (!sym->level)
{ /* global */
if (IS_STATIC (sym->etype))
- fprintf (afile, "F%s_", moduleName); /* scope is file */
+ dbuf_printf (aBuf, "F%s_", moduleName); /* scope is file */
else
- fprintf (afile, "G_"); /* scope is global */
+ dbuf_printf (aBuf, "G_"); /* scope is global */
}
else
/* symbol is local */
- fprintf (afile, "L%s_",
+ dbuf_printf (aBuf, "L%s_",
(sym->localof ? sym->localof->name : "-null-"));
- fprintf (afile, "%s_%d_%d", sym->name, sym->level, sym->block);
+ dbuf_printf (aBuf, "%s_%d_%d", sym->name, sym->level, sym->block);
}
/* if is has an absolute address then generate
{
if (options.debug || sym->level == 0)
- fprintf (afile, " == 0x%04x\n", SPEC_ADDR (sym->etype));
+ dbuf_printf (aBuf, " == 0x%04x\n", SPEC_ADDR (sym->etype));
- fprintf (afile, "%s\t=\t0x%04x\n",
+ dbuf_printf (aBuf, "%s\t=\t0x%04x\n",
sym->rname,
SPEC_ADDR (sym->etype));
}
else
{
if (options.debug || sym->level == 0)
- fprintf (afile, "==.\n");
+ dbuf_printf (aBuf, "==.\n");
/* allocate space */
- fprintf (afile, "%s:\n", sym->rname);
- fprintf (afile, "\t.ds\t0x%04x\n", (unsigned int) getSize (sym->type) & 0xffff);
+ dbuf_printf (aBuf, "%s:\n", sym->rname);
+ dbuf_printf (aBuf, "\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 *vFile;
FILE *asmFile;
- FILE *ovrFile = tempfile();
-
- addSetHead(&tmpfileSet,ovrFile);
+ struct dbuf_s ovrBuf;
+ struct dbuf_s vBuf;
+
+ dbuf_init(&ovrBuf, 4096);
+ dbuf_init(&vBuf, 4096);
+
pCodeInitRegisters();
-
+
+ /* check for main() */
+ mainf = newSymbol ("main", 0);
+ mainf->block = 0;
+ mainf = findSymWithLevel (SymbolTab, mainf);
+
+ 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;
+ }
+
+#if 0
if (mainf && IFFUNC_HASBODY(mainf->type)) {
pBlock *pb = newpCodeChain(NULL,'X',newpCodeCharP("; Starting pCode block"));
}
}
-
+#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 */
/* print the global struct definitions */
if (options.debug)
cdbStructBlock (0);
-
- vFile = tempfile();
-
- addSetHead(&tmpfileSet,vFile);
-
+
/* emit code for the all the variables declared */
- pic14emitMaps ();
+ //pic14emitMaps ();
/* do the overlay segments */
- pic14emitOverlay(ovrFile);
+ pic14emitOverlay(&ovrBuf);
/* PENDING: this isnt the best place but it will do */
if (port->general.glue_up_main) {
/* create the interrupt vector table */
- pic14createInterruptVect (vFile);
+ pic14createInterruptVect (&vBuf);
}
AnalyzepCode('*');
{
port->genAssemblerPreamble(asmFile);
}
+
+ /* print the global variables in this module */
+ //pic14printPublics (asmFile);
/* print the extern variables in this module */
- pic14printExterns (asmFile);
-
- /* print the global variables in this module */
- pic14printPublics (asmFile);
+ //pic14printExterns (asmFile);
/* copy the sfr segment */
+#if 0
fprintf (asmFile, "%s", iComments2);
fprintf (asmFile, "; special function registers\n");
fprintf (asmFile, "%s", iComments2);
- copyFile (asmFile, sfr->oFile);
+ dbuf_write_and_destroy (&sfr->oBuf, asmFile);
if (udata_section_name) {
fprintf (asmFile, "; udata\n");
fprintf (asmFile, "%s", iComments2);
fprintf (asmFile, "%s\tudata\n", udata_name);
- copyFile (asmFile, data->oFile);
-
+ dbuf_write_and_destroy(&data->oBuf, asmFile);
+#endif
+
/* Put all variables into a cblock */
AnalyzeBanking();
+
+ /* emit initialized data */
+ showAllMemmaps(asmFile);
+
+ /* print the locally defined variables in this module */
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);
+ dbuf_write_and_destroy (&ovrBuf, asmFile);
#if 0
fprintf (asmFile, "%s", iComments2);
fprintf (asmFile, "; indirectly addressable internal ram data\n");
fprintf (asmFile, "%s", iComments2);
- copyFile (asmFile, idata->oFile);
-
+ 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, "%s", iComments2);
fprintf (asmFile, "; external ram data\n");
fprintf (asmFile, "%s", iComments2);
- copyFile (asmFile, xdata->oFile);
-
+ dbuf_write_and_destroy (&xdata->oBuf, asmFile);
+
#endif
/* copy the bit segment */
+#if 0
fprintf (asmFile, "%s", iComments2);
fprintf (asmFile, "; bit data\n");
fprintf (asmFile, "%s", iComments2);
- copyFile (asmFile, bit->oFile);
+ dbuf_write_and_destroy (&bit->oBuf, asmFile);
+#endif
/* 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_init\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');
-
- /* initialize data memory */
- fprintf (asmFile,"__sdcc_gsinit_startup:\n");
- /* FIXME: This is temporary. The idata section should be used. If
- not, we could add a special feature to the linker. This will
- work in the mean time. Put all initalized data in main.c */
- copypCode(asmFile, statsg->dbName);
- fprintf (asmFile,"\tpagesel _main\n");
- fprintf (asmFile,"\tgoto _main\n");
- }
-
-#if 0
-
- /* copy global & static initialisations */
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; global & static initialisations\n");
- fprintf (asmFile, "%s", iComments2);
- copypCode(asmFile, statsg->dbName);
-
-#endif
+ 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,"\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
+
+
+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
+
+/*
+ * 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");
+}
+
+//prototype from ../SDCCicode.c
+operand *operandFromAst (ast * tree,int lvl);
+
+char *
+parseIvalAst (ast *node, int *inCodeSpace) {
+#define LEN 4096
+ char *buffer = NULL;
+ char *left, *right;
+
+ 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);
+}
+
+/*
+ * Emit the section preamble, absolute location (if any) and
+ * symbol name(s) for intialized data.
+ */
+static int
+emitIvalLabel(struct dbuf_s *oBuf, symbol *sym)
+{
+ char *segname;
+ static int in_code = 0;
+ static int sectionNr = 0;
+
+ if (sym) {
+ // code or data space?
+ if (IS_CODE(getSpec(sym->type))) {
+ segname = "code";
+ in_code = 1;
+ } else {
+ segname = "idata";
+ in_code = 0;
+ }
+ dbuf_printf(oBuf, "\nID_%s_%d\t%s", moduleName, sectionNr++, segname);
+ if (SPEC_ABSA(getSpec(sym->type))) {
+ // specify address for absolute symbols
+ dbuf_printf(oBuf, "\t0x%04X", SPEC_ADDR(getSpec(sym->type)));
+ } // if
+ dbuf_printf(oBuf, "\n%s\n", sym->rname);
+
+ addSet(&emitted, sym->rname);
+ }
+ return (in_code);
+}
+
+char *get_op(pCodeOp *pcop,char *buffer, size_t size);
+/*
+ * Actually emit the initial values in .asm format.
+ */
+static void
+emitIvals(struct dbuf_s *oBuf, 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;
+
+ assert (size <= sizeof(long));
+ assert (!list || (list->type == INIT_NODE));
+ node = list ? list->init.node : NULL;
+
+ in_code = emitIvalLabel(oBuf, sym);
+ if (!in_code) dbuf_printf (oBuf, "\tdb\t");
+
+ if (!node) {
+ // initialize as zero
+ for (i=0; i < size; i++) {
+ if (in_code) {
+ dbuf_printf (oBuf, "\tretlw 0x00");
+ } else {
+ dbuf_printf (oBuf, "%s0x00", (i == 0) ? "" : ", ");
+ }
+ } // for
+ dbuf_printf (oBuf, "\n");
+ return;
+ } // if
+
+ 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." );
+ }
+
+ 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) {
+ dbuf_printf (oBuf, "\tretlw %s\n", text);
+ } else {
+ dbuf_printf (oBuf, "%s%s", (i == 0) ? "" : ", ", text);
+ }
+ } // for
+ dbuf_printf (oBuf, "\n");
+}
+
+/*
+ * 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);
+
+ 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." );
+ }
+
+ 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(struct dbuf_s *oBuf, symbol *topsym, sym_link *my_type, initList *list)
+{
+ symbol *sym;
+ int size, i;
+ long lit;
+ unsigned char *str;
+
+ size = getSize(my_type);
+
+ if (IS_PTR(my_type)) {
+ DEBUGprintf ("(pointer, %d byte) %p\n", size, list ? (void *)(long)list2int(list) : NULL);
+ emitIvals(oBuf, topsym, list, 0, size);
+ return;
+ }
+
+ if (IS_ARRAY(my_type) && topsym && topsym->isstrlit) {
+ str = (unsigned char *)SPEC_CVAL(topsym->etype).v_char;
+ emitIvalLabel(oBuf, topsym);
+ do {
+ dbuf_printf (oBuf, "\tretlw 0x%02x ; '%c'\n", str[0], (str[0] >= 0x20 && str[0] < 128) ? str[0] : '.');
+ } while (*(str++));
+ return;
+ }
+
+ if (IS_ARRAY(my_type) && list && list->type == INIT_NODE) {
+ fprintf (stderr, "Unhandled initialized symbol: %s\n", topsym->name);
+ assert ( !"Initialized char-arrays are not yet supported, assign at runtime instead." );
+ return;
+ }
+
+ 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(oBuf, 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(oBuf, 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(oBuf, topsym, list, 0, size);
+ return;
- rm_tmpfiles();
+ } 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(oBuf, topsym, NULL, bitfield, len / 8);
+ topsym = NULL;
+ } // if
+
+ if (sym) {
+ emitInitVal(oBuf, 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(oBuf, topsym, my_type, list->init.deep);
+ topsym = NULL;
+ size -= getSize(my_type);
+ if (size > 0) {
+ // pad with (leading) zeros
+ emitIvals(oBuf, 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.");
+ }
+}
+
+/*
+ * Emit a set of symbols.
+ * type - 0: have symbol tell whether it is local, extern or global
+ * 1: assume all symbols in set to be global
+ * 2: assume all symbols in set to be extern
+ */
+static void
+emitSymbolSet(set *s, int type)
+{
+ symbol *sym;
+ initList *list;
+ unsigned sectionNr = 0;
+
+ for (sym = setFirstItem(s); sym; sym = setNextItem(s)) {
+#if 0
+ fprintf (stdout, "; name %s, rname %s, level %d, block %d, key %d, local %d, ival %p, static %d, cdef %d, used %d\n",
+ sym->name, sym->rname, sym->level, sym->block, sym->key, sym->islocal, sym->ival, IS_STATIC(sym->etype), sym->cdef, sym->used);
+#endif
+
+ if (sym->etype && SPEC_ABSA(sym->etype)
+ && IS_CONFIG_ADDRESS(SPEC_ADDR(sym->etype))
+ && sym->ival)
+ {
+ // handle config words
+ pic14_assignConfigWordValue(SPEC_ADDR(sym->etype),
+ (int)list2int(sym->ival));
+ pic14_stringInSet(sym->rname, &emitted, 1);
+ continue;
+ }
+
+ if (sym->isstrlit) {
+ // special case: string literals
+ emitInitVal(ivalBuf, sym, sym->type, NULL);
+ continue;
+ }
+
+ if (type != 0 || sym->cdef
+ || (!IS_STATIC(sym->etype)
+ && IS_GLOBAL(sym)))
+ {
+ // bail out for ___fsadd and friends
+ if (sym->cdef && !sym->used) continue;
+
+ /* export or import non-static globals */
+ if (!pic14_stringInSet(sym->rname, &emitted, 0)) {
+
+ if (type == 2 || IS_EXTERN(sym->etype) || sym->cdef)
+ {
+ /* do not add to emitted set, it might occur again! */
+ //if (!sym->used) continue;
+ // declare symbol
+ emitIfNew (extBuf, &emitted, "\textern\t%s\n", sym->rname);
+ } else {
+ // declare symbol
+ emitIfNew (gloBuf, &emitted, "\tglobal\t%s\n", sym->rname);
+ if (!sym->ival && !IS_FUNC(sym->type)) {
+ // also define symbol
+ if (IS_ABSOLUTE(sym->etype)) {
+ // absolute location?
+ //dbuf_printf (gloDefBuf, "UD_%s_%u\tudata\t0x%04X\n", moduleName, sectionNr++, SPEC_ADDR(sym->etype));
+ // deferred to pic14_constructAbsMap
+ } else {
+ dbuf_printf (gloDefBuf, "UD_%s_%u\tudata\n", moduleName, sectionNr++);
+ dbuf_printf (gloDefBuf, "%s\tres\t%d\n\n", sym->rname, getSize(sym->type));
+ }
+ } // if
+ } // if
+ pic14_stringInSet(sym->rname, &emitted, 1);
+ } // if
+ } // if
+ list = sym->ival;
+ //if (list) showInitList(list, 0);
+ if (list) {
+ resolveIvalSym( list, sym->type );
+ emitInitVal(ivalBuf, sym, sym->type, sym->ival);
+ dbuf_printf (ivalBuf, "\n");
+ }
+ } // for sym
+}
+
+/*
+ * Iterate over all memmaps and emit their contents (attributes, symbols).
+ */
+static void
+showAllMemmaps(FILE *of)
+{
+ struct dbuf_s locBuf;
+ 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;
+ int i;
+
+ DEBUGprintf ("---begin memmaps---\n");
+ if (!extBuf) extBuf = dbuf_new(1024);
+ if (!gloBuf) gloBuf = dbuf_new(1024);
+ if (!gloDefBuf) gloDefBuf = dbuf_new(1024);
+ if (!ivalBuf) ivalBuf = dbuf_new(1024);
+ dbuf_init(&locBuf, 1024);
+
+ dbuf_printf (extBuf, "%s; external declarations\n%s", iComments2, iComments2);
+ dbuf_printf (gloBuf, "%s; global declarations\n%s", iComments2, iComments2);
+ dbuf_printf (gloDefBuf, "%s; global definitions\n%s", iComments2, iComments2);
+ dbuf_printf (ivalBuf, "%s; initialized data\n%s", iComments2, iComments2);
+ dbuf_printf (&locBuf, "%s; compiler-defined variables\n%s", iComments2, iComments2);
+
+ for (i = 0; i < sizeof(maps) / sizeof (memmap *); i++) {
+ map = maps[i];
+ //DEBUGprintf ("memmap %i: %p\n", i, map);
+ if (map) {
+#if 0
+ fprintf (stdout, "; 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);
+#endif
+ emitSymbolSet(map->syms, 0);
+ } // if (map)
+ } // for i
+ DEBUGprintf ("---end of memmaps---\n");
+
+ emitSymbolSet(publics, 1);
+ emitSymbolSet(externs, 2);
+
+ emitPseudoStack(gloBuf, extBuf);
+ pic14_constructAbsMap(gloDefBuf, gloBuf);
+ pic14printLocals (&locBuf);
+ pic14_emitConfigWord(of); // must be done after all the rest
+
+ dbuf_write_and_destroy(extBuf, of);
+ dbuf_write_and_destroy(gloBuf, of);
+ dbuf_write_and_destroy(gloDefBuf, of);
+ dbuf_write_and_destroy(&locBuf, of);
+ dbuf_write_and_destroy(ivalBuf, of);
+
+ extBuf = gloBuf = gloDefBuf = ivalBuf = NULL;
}
+
projects / fw / sdcc / blobdiff