1 /*-------------------------------------------------------------------------
2 SDCCsymt.c - Code file for Symbols table related structures and MACRO's.
3 Written By - Sandeep Dutta . sandeep.dutta@usa.net (1998)
5 This program is free software; you can redistribute it and/or modify it
6 under the terms of the GNU General Public License as published by the
7 Free Software Foundation; either version 2, or (at your option) any
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 In other words, you are welcome to use, share and improve this program.
20 You are forbidden to forbid anyone else to use, share and improve
21 what you give them. Help stamp out software-hoarding!
22 -------------------------------------------------------------------------*/
26 bucket *SymbolTab [256] ; /* the symbol table */
27 bucket *StructTab [256] ; /* the structure table */
28 bucket *TypedefTab[256] ; /* the typedef table */
29 bucket *LabelTab [256] ; /* the Label table */
30 bucket *enumTab [256] ; /* enumerated table */
32 /*------------------------------------------------------------------*/
33 /* initSymt () - initialises symbol table related stuff */
34 /*------------------------------------------------------------------*/
39 for ( i = 0 ; i < 256 ; i++ )
40 SymbolTab[i] = StructTab[i] = (void *) NULL ;
44 /*-----------------------------------------------------------------*/
45 /* newBucket - allocates & returns a new bucket */
46 /*-----------------------------------------------------------------*/
51 ALLOC(bp,sizeof(bucket));
56 /*-----------------------------------------------------------------*/
57 /* hashKey - computes the hashkey given a symbol name */
58 /*-----------------------------------------------------------------*/
59 int hashKey (const char *s)
61 unsigned long key = 0;
68 /*-----------------------------------------------------------------*/
69 /* addSym - adds a symbol to the hash Table */
70 /*-----------------------------------------------------------------*/
71 void addSym ( bucket **stab ,
77 int i ; /* index into the hash Table */
78 bucket *bp ; /* temp bucket * */
80 /* the symbols are always added at the head of the list */
82 /* get a free entry */
83 ALLOC(bp,sizeof(bucket));
85 bp->sym = sym ; /* update the symbol pointer */
86 bp->level = level; /* update the nest level */
88 strcpy(bp->name,sname); /* copy the name into place */
90 /* if this is the first entry */
91 if (stab[i] == NULL) {
92 bp->prev = bp->next = (void *) NULL ; /* point to nothing */
95 /* not first entry then add @ head of list */
104 /*-----------------------------------------------------------------*/
105 /* deleteSym - deletes a symbol from the hash Table entry */
106 /*-----------------------------------------------------------------*/
107 void deleteSym ( bucket **stab, void *sym, char *sname)
115 /* find the symbol */
117 if (bp->sym == sym) /* found it then break out */
118 break ; /* of the loop */
122 if (!bp) /* did not find it */
124 /* if this is the first one in the chain */
127 if ( stab[i] ) /* if chain ! empty */
128 stab[i]->prev = (void *) NULL ;
130 /* middle || end of chain */
132 if ( bp->next ) /* if not end of chain */
133 bp->next->prev = bp->prev ;
135 bp->prev->next = bp->next ;
140 /*-----------------------------------------------------------------*/
141 /* findSym - finds a symbol in a table */
142 /*-----------------------------------------------------------------*/
143 void *findSym ( bucket **stab, void *sym, const char *sname)
147 bp = stab[hashKey(sname)] ;
150 if ( bp->sym == sym || strcmp (bp->name,sname) == 0 )
155 return ( bp ? bp->sym : (void *) NULL ) ;
158 /*-----------------------------------------------------------------*/
159 /* findSymWithLevel - finds a symbol with a name & level */
160 /*-----------------------------------------------------------------*/
161 void *findSymWithLevel ( bucket **stab, symbol *sym)
165 bp = stab[hashKey(sym->name)];
168 ** do the search from the head of the list since the
169 ** elements are added at the head it is ensured that
170 ** we will find the deeper definitions before we find
171 ** the global ones. we need to check for symbols with
172 ** level <= to the level given, if levels match then block
173 ** numbers need to match as well
177 if ( strcmp(bp->name,sym->name) == 0 && bp->level <= sym->level) {
178 /* if this is parameter then nothing else need to be checked */
179 if (((symbol *)(bp->sym))->_isparm)
181 /* if levels match then block numbers hsould also match */
182 if (bp->level && bp->level == sym->level && bp->block == sym->block )
184 /* if levels don't match then we are okay */
185 if (bp->level && bp->level != sym->level)
187 /* if this is a global variable then we are ok too */
195 return (void *) NULL ;
198 /*-----------------------------------------------------------------*/
199 /* findSymWithBlock - finds a symbol with name in with a block */
200 /*-----------------------------------------------------------------*/
201 void *findSymWithBlock ( bucket **stab, symbol *sym, int block)
205 bp = stab[hashKey(sym->name)] ;
208 if ( strcmp (bp->name,sym->name) == 0 &&
214 return ( bp ? bp->sym : (void *) NULL ) ;
217 /*------------------------------------------------------------------*/
218 /* newSymbol () - returns a new pointer to a symbol */
219 /*------------------------------------------------------------------*/
220 symbol *newSymbol (char *name, int scope )
224 ALLOC(sym,sizeof(symbol));
226 strcpy(sym->name,name); /* copy the name */
227 sym->level = scope ; /* set the level */
228 sym->block = currBlockno ;
229 sym->lineDef = yylineno ; /* set the line number */
233 /*------------------------------------------------------------------*/
234 /* newLink - creates a new link (declarator,specifier) */
235 /*------------------------------------------------------------------*/
240 ALLOC(p,sizeof(sym_link));
245 /*------------------------------------------------------------------*/
246 /* newStruct - creats a new structdef from the free list */
247 /*------------------------------------------------------------------*/
248 structdef *newStruct ( char *tag )
252 ALLOC(s,sizeof(structdef));
254 strcpy(s->tag,tag) ; /* copy the tag */
258 /*------------------------------------------------------------------*/
259 /* pointerTypes - do the computation for the pointer types */
260 /*------------------------------------------------------------------*/
261 void pointerTypes (sym_link *ptr, sym_link *type)
266 /* find the first pointer type */
267 while (ptr && !IS_PTR(ptr))
270 /* could not find it */
271 if (!ptr || IS_SPEC(ptr) ||
272 DCL_TYPE(ptr) != UPOINTER)
275 /* change the pointer type depending on the
276 storage class of the type */
278 DCL_PTR_CONST(ptr) = SPEC_CONST(type);
279 DCL_PTR_VOLATILE(ptr) = SPEC_VOLATILE(type);
280 switch (SPEC_SCLS(type)) {
282 DCL_TYPE(ptr) = FPOINTER;
285 DCL_TYPE(ptr) = IPOINTER ;
288 DCL_TYPE(ptr) = PPOINTER ;
291 DCL_TYPE(ptr) = POINTER ;
294 DCL_PTR_CONST(ptr) = port->mem.code_ro;
295 DCL_TYPE(ptr) = CPOINTER ;
298 DCL_TYPE(ptr) = EEPPOINTER;
301 DCL_TYPE(ptr) = GPOINTER;
304 /* the storage class of type ends here */
307 SPEC_VOLATILE(type) = 0;
310 /* now change all the remaining unknown pointers
311 to generic pointers */
313 if (!IS_SPEC(ptr) && DCL_TYPE(ptr) == UPOINTER)
314 DCL_TYPE(ptr) = GPOINTER;
318 /* same for the type although it is highly unlikely that
319 type will have a pointer */
321 if (!IS_SPEC(type) && DCL_TYPE(type) == UPOINTER)
322 DCL_TYPE(type) = GPOINTER;
328 /*------------------------------------------------------------------*/
329 /* addDecl - adds a declarator @ the end of a chain */
330 /*------------------------------------------------------------------*/
331 void addDecl ( symbol *sym, int type , sym_link *p )
337 /* if we are passed a link then set head & tail */
344 head = tail = newLink() ;
345 DCL_TYPE(head) = type ;
348 /* if this is the first entry */
354 if ( IS_SPEC(sym->etype) && IS_SPEC(head) && head == tail ) {
355 sym->etype = mergeSpec(sym->etype,head);
358 if ( IS_SPEC(sym->etype) && !IS_SPEC(head) && head == tail ) {
360 while (t->next != sym->etype) t = t->next ;
362 tail->next = sym->etype;
364 sym->etype->next = head;
370 /* if the type is a unknown pointer and has
371 a tspec then take the storage class const & volatile
372 attribute from the tspec & make it those of this
376 DCL_TYPE(p) == UPOINTER &&
378 if (!IS_SPEC(sym->etype)) {
379 sym->etype = sym->etype->next = newLink();
380 sym->etype->class = SPECIFIER;
382 SPEC_SCLS(sym->etype) = SPEC_SCLS(DCL_TSPEC(p));
383 SPEC_CONST(sym->etype) = SPEC_CONST(DCL_TSPEC(p));
384 SPEC_VOLATILE(sym->etype) = SPEC_VOLATILE(DCL_TSPEC(p));
390 /*------------------------------------------------------------------*/
391 /* mergeSpec - merges two specifiers and returns the new one */
392 /*------------------------------------------------------------------*/
393 sym_link *mergeSpec ( sym_link *dest, sym_link *src )
395 /* if noun different then src overrides */
396 if ( SPEC_NOUN(dest) != SPEC_NOUN(src) && !SPEC_NOUN(dest))
397 SPEC_NOUN(dest) = SPEC_NOUN(src) ;
399 if (! SPEC_SCLS(dest)) /* if destination has no storage class */
400 SPEC_SCLS(dest) = SPEC_SCLS(src) ;
402 /* copy all the specifications */
403 SPEC_LONG(dest) |= SPEC_LONG(src);
404 SPEC_SHORT(dest) |= SPEC_SHORT(src);
405 SPEC_USIGN(dest) |= SPEC_USIGN(src);
406 SPEC_STAT(dest) |= SPEC_STAT(src);
407 SPEC_EXTR(dest) |= SPEC_EXTR(src);
408 SPEC_ABSA(dest) |= SPEC_ABSA(src);
409 SPEC_RENT(dest) |= SPEC_RENT(src);
410 SPEC_INTN(dest) |= SPEC_INTN(src);
411 SPEC_BANK(dest) |= SPEC_BANK(src);
412 SPEC_VOLATILE(dest) |= SPEC_VOLATILE(src);
413 SPEC_CRTCL(dest) |= SPEC_CRTCL(src);
414 SPEC_ADDR(dest) |= SPEC_ADDR(src);
415 SPEC_OCLS(dest) = SPEC_OCLS(src);
416 SPEC_BLEN(dest) |= SPEC_BLEN(src);
417 SPEC_BSTR(dest) |= SPEC_BSTR(src);
418 SPEC_TYPEDEF(dest) |= SPEC_TYPEDEF(src);
419 SPEC_NONBANKED(dest) |= SPEC_NONBANKED(src);
421 if ( IS_STRUCT(dest) && SPEC_STRUCT(dest) == NULL )
422 SPEC_STRUCT(dest) = SPEC_STRUCT(src);
427 /*------------------------------------------------------------------*/
428 /* cloneSpec - copies the entire spec and returns a new spec */
429 /*------------------------------------------------------------------*/
430 sym_link *cloneSpec ( sym_link *src )
434 /* go thru chain till we find the specifier */
435 while ( src && src->class != SPECIFIER )
439 memcpy (spec,src,sizeof(sym_link));
443 /*------------------------------------------------------------------*/
444 /* genSymName - generates and returns a name used for anonymous vars*/
445 /*------------------------------------------------------------------*/
446 char *genSymName ( int level )
448 static int gCount = 0 ;
449 static char gname[SDCC_NAME_MAX+1] ;
451 sprintf (gname,"__%04d%04d",level,gCount++);
455 /*------------------------------------------------------------------*/
456 /* getSpec - returns the specifier part from a declaration chain */
457 /*------------------------------------------------------------------*/
458 sym_link *getSpec ( sym_link *p )
463 while ( p && ! (IS_SPEC(p)))
469 /*------------------------------------------------------------------*/
470 /* newCharLink() - creates an int type */
471 /*------------------------------------------------------------------*/
472 sym_link *newCharLink()
477 p->class = SPECIFIER ;
478 SPEC_NOUN(p) = V_CHAR ;
483 /*------------------------------------------------------------------*/
484 /* newFloatLink - a new Float type */
485 /*------------------------------------------------------------------*/
486 sym_link *newFloatLink()
491 p->class = SPECIFIER ;
492 SPEC_NOUN(p) = V_FLOAT ;
497 /*------------------------------------------------------------------*/
498 /* newLongLink() - new long type */
499 /*------------------------------------------------------------------*/
500 sym_link *newLongLink()
505 p->class = SPECIFIER ;
506 SPEC_NOUN(p) = V_INT ;
512 /*------------------------------------------------------------------*/
513 /* newIntLink() - creates an int type */
514 /*------------------------------------------------------------------*/
515 sym_link *newIntLink()
520 p->class = SPECIFIER ;
521 SPEC_NOUN(p) = V_INT ;
526 /*------------------------------------------------------------------*/
527 /* getSize - returns size of a type chain in bits */
528 /*------------------------------------------------------------------*/
529 unsigned int getSize ( sym_link *p )
531 /* if nothing return 0 */
534 if ( IS_SPEC(p) ) { /* if this is the specifier then */
535 switch (SPEC_NOUN(p)) { /* depending on the specifier type */
537 return (IS_LONG(p) ? LONGSIZE : ( IS_SHORT(p) ? SHORTSIZE: INTSIZE)) ;
545 return SPEC_STRUCT(p)->size ;
551 return ((SPEC_BLEN(p) / 8) + (SPEC_BLEN(p) % 8 ? 1 : 0)) ;
557 /* this is a specifier */
558 switch (DCL_TYPE(p)) {
562 return DCL_ELEM(p) * getSize (p->next) ;
579 /*------------------------------------------------------------------*/
580 /* bitsForType - returns # of bits required to store this type */
581 /*------------------------------------------------------------------*/
582 unsigned int bitsForType ( sym_link *p )
584 /* if nothing return 0 */
588 if ( IS_SPEC(p) ) { /* if this is the specifier then */
590 switch (SPEC_NOUN(p)) { /* depending on the specifier type */
592 return (IS_LONG(p) ? LONGSIZE*8 : ( IS_SHORT(p) ? SHORTSIZE*8: INTSIZE*8)) ;
600 return SPEC_STRUCT(p)->size*8 ;
612 /* this is a specifier */
613 switch (DCL_TYPE(p)) {
617 return DCL_ELEM(p) * getSize (p->next) *8 ;
621 return ( PTRSIZE * 8) ;
625 return ( FPTRSIZE * 8);
627 return ( GPTRSIZE * 8);
634 /*------------------------------------------------------------------*/
635 /* copySymbolChain - copies a symbol chain */
636 /*------------------------------------------------------------------*/
637 symbol *copySymbolChain (symbol *src)
644 dest = copySymbol(src);
645 dest->next = copySymbolChain(src->next);
649 /*------------------------------------------------------------------*/
650 /* copySymbol - makes a copy of a symbol */
651 /*------------------------------------------------------------------*/
652 symbol *copySymbol (symbol *src)
659 dest = newSymbol( src->name, src->level );
660 memcpy(dest,src,sizeof(symbol));
661 dest->level = src->level ;
662 dest->block = src->block ;
663 dest->ival = copyIlist(src->ival);
664 dest->type = copyLinkChain(src->type);
665 dest->etype= getSpec(dest->type);
667 dest->args = copyValueChain (src->args);
668 dest->key = src->key;
669 dest->calleeSave = src->calleeSave;
670 dest->allocreq = src->allocreq;
674 /*------------------------------------------------------------------*/
675 /* reverseSyms - reverses the links for a symbol chain */
676 /*------------------------------------------------------------------*/
677 symbol *reverseSyms ( symbol *sym)
679 symbol *prev , *curr, *next ;
694 sym->next = (void *) NULL ;
698 /*------------------------------------------------------------------*/
699 /* reverseLink - reverses the links for a type chain */
700 /*------------------------------------------------------------------*/
701 sym_link *reverseLink ( sym_link *type)
703 sym_link *prev , *curr, *next ;
718 type->next = (void *) NULL ;
722 /*------------------------------------------------------------------*/
723 /* addSymChain - adds a symbol chain to the symboltable */
724 /*------------------------------------------------------------------*/
725 void addSymChain ( symbol *symHead )
727 symbol *sym = symHead ;
728 symbol *csym = NULL ;
730 for (;sym != NULL ; sym = sym->next ) {
732 /* if already exists in the symbol table then check if
733 the previous was an extern definition if yes then
734 then check if the type match, if the types match then
735 delete the current entry and add the new entry */
736 if ((csym = findSymWithLevel (SymbolTab,sym)) &&
737 csym->level == sym->level) {
739 /* previous definition extern ? */
740 if ( IS_EXTERN(csym->etype) ) {
741 /* do types match ? */
742 if (checkType ( csym->type,sym->type) != 1)
744 werror (E_DUPLICATE,csym->name);
746 /* delete current entry */
747 deleteSym (SymbolTab, csym, csym->name );
749 addSym (SymbolTab, sym, sym->name, sym->level,sym->block);
750 } else /* not extern */
751 werror(E_DUPLICATE,sym->name) ;
755 /* check if previously defined */
756 if (csym && csym->level == sym->level ) {
757 /* if the previous one was declared as extern */
758 /* then check the type with the current one */
759 if ( IS_EXTERN(csym->etype) ) {
760 if ( checkType (csym->type, sym->type ) <= 0 )
761 werror (W_EXTERN_MISMATCH,csym->name);
765 addSym (SymbolTab,sym,sym->name,sym->level,sym->block) ;
770 /*------------------------------------------------------------------*/
771 /* funcInChain - DCL Type 'FUNCTION' found in type chain */
772 /*------------------------------------------------------------------*/
773 int funcInChain (sym_link *lnk)
783 /*------------------------------------------------------------------*/
784 /* structElemType - returns the type info of a sturct member */
785 /*------------------------------------------------------------------*/
786 sym_link *structElemType (sym_link *stype, value *id ,value **argsp)
788 symbol *fields = (SPEC_STRUCT(stype) ? SPEC_STRUCT(stype)->fields : NULL);
789 sym_link *type, *etype;
790 sym_link *petype = getSpec(stype);
792 if ( ! fields || ! id)
795 /* look for the id */
797 if (strcmp(fields->rname,id->name) == 0) {
799 *argsp = fields->args;
801 type = copyLinkChain (fields->type) ;
803 SPEC_SCLS(etype) = (SPEC_SCLS(petype) == S_REGISTER ?
804 SPEC_SCLS(etype) : SPEC_SCLS(petype));
807 fields = fields->next ;
809 werror(E_NOT_MEMBER,id->name);
814 /*------------------------------------------------------------------*/
815 /* getStructElement - returns element of a tructure definition */
816 /*------------------------------------------------------------------*/
817 symbol *getStructElement ( structdef *sdef, symbol *sym)
821 for ( field = sdef->fields ; field ; field = field->next )
822 if ( strcmp(field->name,sym->name) == 0)
825 werror(E_NOT_MEMBER,sym->name);
827 return sdef->fields ;
830 /*------------------------------------------------------------------*/
831 /* compStructSize - computes the size of a structure */
832 /*------------------------------------------------------------------*/
833 int compStructSize (int su, structdef *sdef )
835 int sum = 0 , usum =0;
839 /* for the identifiers */
840 loop = sdef->fields ;
843 /* create the internal name for this variable */
844 sprintf (loop->rname,"_%s",loop->name);
845 loop->offset = ( su == UNION ? sum = 0 : sum ) ;
846 SPEC_VOLATILE(loop->etype) |= (su == UNION ? 1 : 0);
848 /* if this is a bit field */
851 /* change it to a unsigned bit */
852 SPEC_NOUN(loop->etype) = V_BIT ;
853 SPEC_USIGN(loop->etype) = 1 ;
854 /* check if this fit into the remaining */
855 /* bits of this byte else align it to the */
856 /* next byte boundary */
857 if ((SPEC_BLEN(loop->etype)=loop->bitVar) <= (8 - bitOffset)) {
858 SPEC_BSTR(loop->etype) = bitOffset ;
859 if ((bitOffset += (loop->bitVar % 8)) == 8) sum++;
861 else /* does not fit */
864 SPEC_BSTR(loop->etype) = bitOffset ;
865 sum += (loop->bitVar / 8) ;
866 bitOffset += (loop->bitVar % 8);
868 /* if this is the last field then pad */
869 if (!loop->next && bitOffset && bitOffset != 8) {
876 sum += getSize (loop->type) ;
879 /* if function then do the arguments for it */
880 if (funcInChain(loop->type)) {
881 processFuncArgs (loop, 1);
886 /* if this is not a bitfield but the */
887 /* previous one was and did not take */
888 /* the whole byte then pad the rest */
889 if ((loop && !loop->bitVar) && bitOffset) {
894 /* if union then size = sizeof larget field */
896 usum = max(usum,sum);
900 return (su == UNION ? usum : sum);
903 /*------------------------------------------------------------------*/
904 /* checkSClass - check the storage class specification */
905 /*------------------------------------------------------------------*/
906 static void checkSClass ( symbol *sym )
908 /* type is literal can happen foe enums change
910 if (SPEC_SCLS(sym->etype) == S_LITERAL && !SPEC_ENUM(sym->etype))
911 SPEC_SCLS(sym->etype) = S_AUTO;
913 /* if sfr or sbit then must also be */
914 /* volatile the initial value will be xlated */
915 /* to an absolute address */
916 if (SPEC_SCLS(sym->etype) == S_SBIT ||
917 SPEC_SCLS(sym->etype) == S_SFR ) {
918 SPEC_VOLATILE(sym->etype) = 1;
919 /* if initial value given */
921 SPEC_ABSA(sym->etype) = 1;
922 SPEC_ADDR(sym->etype) =
923 (int) list2int(sym->ival);
928 /* if absolute address given then it mark it as
930 if (IS_ABSOLUTE(sym->etype))
931 SPEC_VOLATILE(sym->etype) = 1;
933 /* global variables declared const put into code */
934 if (sym->level == 0 &&
935 SPEC_SCLS(sym->etype) == S_CONSTANT) {
936 SPEC_SCLS(sym->etype) = S_CODE ;
937 SPEC_CONST(sym->etype) = 1;
940 /* global variable in code space is a constant */
941 if (sym->level == 0 &&
942 SPEC_SCLS(sym->etype) == S_CODE &&
944 SPEC_CONST(sym->etype) = 1;
947 /* if bit variable then no storage class can be */
948 /* specified since bit is already a storage */
949 if ( IS_BITVAR(sym->etype) &&
950 ( SPEC_SCLS(sym->etype) != S_FIXED &&
951 SPEC_SCLS(sym->etype) != S_SBIT &&
952 SPEC_SCLS(sym->etype) != S_BIT )
954 werror (E_BITVAR_STORAGE,sym->name);
955 SPEC_SCLS(sym->etype) = S_FIXED ;
958 /* extern variables cannot be initialized */
959 if (IS_EXTERN(sym->etype) && sym->ival) {
960 werror(E_EXTERN_INIT,sym->name);
964 /* if this is an automatic symbol then */
965 /* storage class will be ignored and */
966 /* symbol will be allocated on stack/ */
967 /* data depending on flag */
969 (options.stackAuto || reentrant ) &&
970 ( SPEC_SCLS(sym->etype) != S_AUTO &&
971 SPEC_SCLS(sym->etype) != S_FIXED &&
972 SPEC_SCLS(sym->etype) != S_REGISTER &&
973 SPEC_SCLS(sym->etype) != S_STACK &&
974 SPEC_SCLS(sym->etype) != S_XSTACK &&
975 SPEC_SCLS(sym->etype) != S_CONSTANT )) {
977 werror(E_AUTO_ASSUMED,sym->name) ;
978 SPEC_SCLS(sym->etype) = S_AUTO ;
981 /* automatic symbols cannot be given */
982 /* an absolute address ignore it */
984 SPEC_ABSA(sym->etype) &&
985 (options.stackAuto || reentrant) ) {
986 werror(E_AUTO_ABSA,sym->name);
987 SPEC_ABSA(sym->etype) = 0 ;
990 /* arrays & pointers cannot be defined for bits */
991 /* SBITS or SFRs or BIT */
992 if ((IS_ARRAY(sym->type) || IS_PTR(sym->type)) &&
993 ( SPEC_NOUN(sym->etype) == V_BIT ||
994 SPEC_NOUN(sym->etype) == V_SBIT ||
995 SPEC_SCLS(sym->etype) == S_SFR ))
996 werror(E_BIT_ARRAY,sym->name);
998 /* if this is a bit|sbit then set length & start */
999 if (SPEC_NOUN(sym->etype) == V_BIT ||
1000 SPEC_NOUN(sym->etype) == V_SBIT ) {
1001 SPEC_BLEN(sym->etype) = 1 ;
1002 SPEC_BSTR(sym->etype) = 0 ;
1005 /* variables declared in CODE space must have */
1006 /* initializers if not an extern */
1007 if (SPEC_SCLS(sym->etype) == S_CODE &&
1008 sym->ival == NULL &&
1010 port->mem.code_ro &&
1011 !IS_EXTERN(sym->etype) &&
1012 !funcInChain(sym->type))
1013 werror(E_CODE_NO_INIT,sym->name);
1015 /* if parameter or local variable then change */
1016 /* the storage class to reflect where the var will go */
1017 if ( sym->level && SPEC_SCLS(sym->etype) == S_FIXED) {
1018 if ( options.stackAuto || (currFunc && IS_RENT(currFunc->etype)))
1020 SPEC_SCLS(sym->etype) = (options.useXstack ?
1021 S_XSTACK : S_STACK ) ;
1025 /* hack-o-matic! I see no reason why the useXstack option should ever
1026 * control this allcoation, but the code was originally that way, and
1027 * changing it for non-390 ports breaks the compiler badly.
1029 bool useXdata = IS_DS390_PORT ? options.model : options.useXstack;
1030 SPEC_SCLS(sym->etype) = (useXdata ?
1031 S_XDATA : S_FIXED ) ;
1036 /*------------------------------------------------------------------*/
1037 /* changePointer - change pointer to functions */
1038 /*------------------------------------------------------------------*/
1039 void changePointer (symbol *sym)
1043 /* go thru the chain of declarations */
1044 /* if we find a pointer to a function */
1045 /* unconditionally change it to a ptr */
1047 for ( p = sym->type ; p ; p = p->next) {
1048 if ( !IS_SPEC(p) && DCL_TYPE(p) == UPOINTER)
1049 DCL_TYPE(p) = GPOINTER ;
1050 if ( IS_PTR(p) && IS_FUNC(p->next))
1051 DCL_TYPE(p) = CPOINTER ;
1055 /*------------------------------------------------------------------*/
1056 /* checkDecl - does semantic validation of a declaration */
1057 /*------------------------------------------------------------------*/
1058 int checkDecl ( symbol *sym )
1061 checkSClass (sym); /* check the storage class */
1062 changePointer(sym); /* change pointers if required */
1064 /* if this is an array without any dimension
1065 then update the dimension from the initial value */
1066 if (IS_ARRAY(sym->type) && !DCL_ELEM(sym->type))
1067 DCL_ELEM(sym->type) = getNelements (sym->type,sym->ival);
1072 /*------------------------------------------------------------------*/
1073 /* copyLinkChain - makes a copy of the link chain & rets ptr 2 head */
1074 /*------------------------------------------------------------------*/
1075 sym_link *copyLinkChain ( sym_link *p)
1077 sym_link *head, *curr , *loop;
1080 head = loop = ( curr ? newLink() : (void *) NULL) ;
1082 memcpy(loop,curr,sizeof(sym_link)) ; /* copy it */
1083 loop->next = (curr->next ? newLink() : (void *) NULL) ;
1092 /*------------------------------------------------------------------*/
1093 /* cleanUpBlock - cleansup the symbol table specified for all the */
1094 /* symbols in the given block */
1095 /*------------------------------------------------------------------*/
1096 void cleanUpBlock ( bucket **table, int block)
1101 /* go thru the entire table */
1102 for ( i = 0 ; i < 256; i++ ) {
1103 for ( chain = table[i]; chain ; chain = chain->next ) {
1104 if (chain->block >= block) {
1105 deleteSym (table,chain->sym,chain->name);
1111 /*------------------------------------------------------------------*/
1112 /* cleanUpLevel - cleansup the symbol table specified for all the */
1113 /* symbols in the given level */
1114 /*------------------------------------------------------------------*/
1115 void cleanUpLevel (bucket **table, int level )
1120 /* go thru the entire table */
1121 for ( i = 0 ; i < 256; i++ ) {
1122 for ( chain = table[i]; chain ; chain = chain->next ) {
1123 if (chain->level >= level) {
1124 deleteSym (table,chain->sym,chain->name);
1130 /*------------------------------------------------------------------*/
1131 /* computeType - computes the resultant type from two types */
1132 /*------------------------------------------------------------------*/
1133 sym_link *computeType ( sym_link *type1, sym_link *type2)
1137 sym_link *etype1 = getSpec(type1);
1138 sym_link *etype2 = getSpec(type2);
1140 /* if one of them is a float then result is a float */
1141 /* here we assume that the types passed are okay */
1142 /* and can be cast to one another */
1143 /* which ever is greater in size */
1144 if (IS_FLOAT(etype1) || IS_FLOAT(etype2))
1145 rType = newFloatLink();
1147 /* if only one of them is a bit variable
1148 then the other one prevails */
1149 if (IS_BITVAR(etype1) && !IS_BITVAR(etype2))
1150 rType = copyLinkChain(type2);
1152 if (IS_BITVAR(etype2) && !IS_BITVAR(etype1))
1153 rType = copyLinkChain(type1);
1155 /* if one of them is a pointer then that
1158 rType = copyLinkChain(type1);
1161 rType = copyLinkChain(type2);
1163 if (getSize (type1) > getSize(type2) )
1164 rType = copyLinkChain(type1);
1166 rType = copyLinkChain(type2);
1168 reType = getSpec(rType);
1170 /* if either of them unsigned then make this unsigned */
1171 if ((SPEC_USIGN(etype1) || SPEC_USIGN(etype2)) && !IS_FLOAT(reType))
1172 SPEC_USIGN(reType) = 1;
1174 /* if result is a literal then make not so */
1175 if (IS_LITERAL(reType))
1176 SPEC_SCLS(reType) = S_REGISTER ;
1181 /*------------------------------------------------------------------*/
1182 /* checkType - will do type check return 1 if match */
1183 /*------------------------------------------------------------------*/
1184 int checkType ( sym_link *dest, sym_link *src )
1195 /* if dest is a declarator then */
1196 if (IS_DECL(dest)) {
1198 if (DCL_TYPE(src) == DCL_TYPE(dest))
1199 return checkType(dest->next,src->next);
1201 if (IS_PTR(src) && IS_PTR(dest))
1204 if (IS_PTR(dest) && IS_ARRAY(src))
1207 if (IS_PTR(dest) && IS_FUNC(dest->next) && IS_FUNC(src))
1208 return -1 * checkType (dest->next,src) ;
1213 if (IS_PTR(dest) && IS_INTEGRAL(src))
1219 /* if one is a specifier and the other is not */
1220 if ((IS_SPEC(src) && !IS_SPEC(dest)) ||
1221 (IS_SPEC(dest) && !IS_SPEC(src))) return 0;
1223 /* if one of them is a void then ok */
1224 if (SPEC_NOUN(dest) == V_VOID &&
1225 SPEC_NOUN(src) != V_VOID )
1228 if (SPEC_NOUN(dest) != V_VOID &&
1229 SPEC_NOUN(src) == V_VOID )
1232 /* char === to short */
1233 if (SPEC_NOUN(dest) == V_CHAR &&
1234 SPEC_NOUN(src) == V_INT &&
1236 return (SPEC_USIGN(src) == SPEC_USIGN(dest) ? 1 : -2);
1238 if (SPEC_NOUN(src) == V_CHAR &&
1239 SPEC_NOUN(dest) == V_INT &&
1241 return (SPEC_USIGN(src) == SPEC_USIGN(dest) ? 1 : -2);
1243 /* if they are both bitfields then if the lengths
1244 and starts don't match */
1245 if (IS_BITFIELD(dest) && IS_BITFIELD(src) &&
1246 (SPEC_BLEN(dest) != SPEC_BLEN(src) ||
1247 SPEC_BSTR(dest) != SPEC_BSTR(src)))
1250 /* it is a specifier */
1251 if (SPEC_NOUN(dest) != SPEC_NOUN(src)) {
1252 if (SPEC_USIGN(dest) == SPEC_USIGN(src) &&
1253 IS_INTEGRAL(dest) && IS_INTEGRAL(src) &&
1254 getSize(dest) == getSize(src))
1257 if (IS_ARITHMETIC(dest) && IS_ARITHMETIC(src))
1263 if (IS_STRUCT(dest)) {
1264 if (SPEC_STRUCT(dest) != SPEC_STRUCT(src))
1269 if (SPEC_LONG(dest) != SPEC_LONG(src))
1272 if (SPEC_SHORT(dest) != SPEC_SHORT(src))
1275 if (SPEC_USIGN(dest) != SPEC_USIGN(src))
1281 /*------------------------------------------------------------------*/
1282 /* inCalleeSaveList - return 1 if found in calle save list */
1283 /*------------------------------------------------------------------*/
1284 bool inCalleeSaveList ( char *s)
1288 for (i = 0 ; options.calleeSaves[i] ; i++ )
1289 if (strcmp(options.calleeSaves[i],s) == 0)
1295 /*------------------------------------------------------------------*/
1296 /* checkFunction - does all kinds of check on a function */
1297 /*------------------------------------------------------------------*/
1298 int checkFunction (symbol *sym)
1301 value *exargs, *acargs ;
1304 /* if not type then some kind of error */
1308 /* if the function has no type then make it return int */
1309 if ( !sym->type->next )
1310 sym->type->next = sym->etype = newIntLink();
1312 /* function cannot return aggregate */
1313 if (IS_AGGREGATE(sym->type->next)) {
1314 werror(E_FUNC_AGGR,sym->name);
1318 /* function cannot return bit */
1319 if (IS_BITVAR(sym->type->next)) {
1320 werror(E_FUNC_BIT,sym->name);
1324 /* check if this function is defined as calleeSaves
1325 then mark it as such */
1326 sym->calleeSave = inCalleeSaveList(sym->name);
1328 /* if interrupt service routine */
1329 /* then it cannot have arguments */
1330 if ( sym->args && IS_ISR(sym->etype) && !IS_VOID(sym->args->type)) {
1331 werror(E_INT_ARGS,sym->name);
1335 if (!(csym = findSym (SymbolTab, sym, sym->name )))
1336 return 1 ; /* not defined nothing more to check */
1338 /* check if body already present */
1339 if ( csym && csym->fbody ) {
1340 werror(E_FUNC_BODY,sym->name);
1344 /* check the return value type */
1345 if (checkType (csym->type,sym->type) <= 0) {
1346 werror(E_PREV_DEF_CONFLICT,csym->name,"type") ;
1347 werror (E_CONTINUE,"previous defintion type ");
1348 printTypeChain(csym->type,stderr);fprintf(stderr,"\n");
1349 werror (E_CONTINUE,"current definition type ");
1350 printTypeChain(sym->type,stderr);fprintf(stderr,"\n");
1354 if ( SPEC_INTRTN(csym->etype) != SPEC_INTRTN(sym->etype)) {
1355 werror (E_PREV_DEF_CONFLICT,csym->name,"interrupt");
1359 if (SPEC_BANK(csym->etype) != SPEC_BANK(sym->etype)) {
1360 werror (E_PREV_DEF_CONFLICT,csym->name,"using");
1364 /* compare expected agrs with actual args */
1365 exargs = csym->args ;
1366 acargs = sym->args ;
1368 /* for all the expected args do */
1371 exargs = exargs->next, acargs = acargs->next, argCnt++ ) {
1372 if ( checkType(exargs->type,acargs->type) <= 0) {
1373 werror(E_ARG_TYPE,argCnt);
1378 /* if one them ended we have a problem */
1379 if ((exargs && !acargs && !IS_VOID(exargs->type)) ||
1380 (!exargs && acargs && !IS_VOID(acargs->type)))
1381 werror(E_ARG_COUNT);
1383 /* replace with this defition */
1384 sym->cdef = csym->cdef;
1385 deleteSym (SymbolTab,csym,csym->name);
1386 addSym (SymbolTab,sym,sym->name,sym->level,sym->block);
1387 if (IS_EXTERN(csym->etype) && !
1388 IS_EXTERN(sym->etype)) {
1389 addSet(&publics,sym);
1394 /*-----------------------------------------------------------------*/
1395 /* processFuncArgs - does some processing with function args */
1396 /*-----------------------------------------------------------------*/
1397 void processFuncArgs (symbol *func, int ignoreName)
1403 /* if this function has variable argument list */
1404 /* then make the function a reentrant one */
1406 SPEC_RENT(func->etype) = 1;
1408 /* check if this function is defined as calleeSaves
1409 then mark it as such */
1410 func->calleeSave = inCalleeSaveList(func->name);
1412 val = func->args; /* loop thru all the arguments */
1414 /* if it is void then remove parameters */
1415 if (val && IS_VOID(val->type)) {
1420 /* reset regparm for the port */
1421 (*port->reset_regparms)();
1422 /* if any of the arguments is an aggregate */
1423 /* change it to pointer to the same type */
1425 /* mark it as a register parameter if
1426 the function does not have VA_ARG
1427 and as port dictates
1428 not inhibited by command line option or #pragma */
1429 if (!func->hasVargs &&
1430 !options.noregparms &&
1431 !IS_RENT(func->etype) &&
1432 (*port->reg_parm)(val->type)) {
1433 SPEC_REGPARM(val->etype) = 1;
1436 if ( IS_AGGREGATE(val->type)) {
1437 /* if this is a structure */
1438 /* then we need to add a new link */
1439 if (IS_STRUCT(val->type)) {
1440 /* first lets add DECLARATOR type */
1441 sym_link *p = val->type ;
1443 werror(W_STRUCT_AS_ARG,val->name);
1444 val->type = newLink();
1445 val->type->next = p ;
1448 /* change to a pointer depending on the */
1449 /* storage class specified */
1450 switch (SPEC_SCLS(val->etype)) {
1452 DCL_TYPE(val->type) = IPOINTER;
1455 DCL_TYPE(val->type) = PPOINTER;
1461 DCL_TYPE(val->type) = POINTER ;
1464 DCL_TYPE(val->type) = CPOINTER;
1467 DCL_TYPE(val->type) = FPOINTER;
1470 DCL_TYPE(val->type) = EEPPOINTER;
1473 DCL_TYPE(val->type) = GPOINTER;
1476 /* is there is a symbol associated then */
1477 /* change the type of the symbol as well*/
1479 val->sym->type = copyLinkChain(val->type);
1480 val->sym->etype = getSpec(val->sym->type);
1488 /* if this function is reentrant or */
1489 /* automatics r 2b stacked then nothing */
1490 if (IS_RENT(func->etype) || options.stackAuto )
1497 /* if a symbolname is not given */
1498 /* synthesize a variable name */
1501 sprintf(val->name,"_%s_PARM_%d",func->name,pNum++);
1502 val->sym = newSymbol(val->name,1);
1503 SPEC_OCLS(val->etype) = port->mem.default_local_map;
1504 val->sym->type = copyLinkChain (val->type);
1505 val->sym->etype = getSpec (val->sym->type);
1506 val->sym->_isparm = 1;
1507 strcpy (val->sym->rname,val->name);
1508 SPEC_STAT(val->etype) = SPEC_STAT(val->sym->etype) =
1509 SPEC_STAT(func->etype);
1510 addSymChain(val->sym);
1513 else /* symbol name given create synth name */ {
1515 sprintf(val->name,"_%s_PARM_%d",func->name,pNum++);
1516 strcpy (val->sym->rname,val->name);
1517 val->sym->_isparm = 1;
1518 SPEC_OCLS(val->etype) = SPEC_OCLS(val->sym->etype) =
1519 (options.model != MODEL_SMALL ? xdata : data);
1520 SPEC_STAT(val->etype) = SPEC_STAT(val->sym->etype) =
1521 SPEC_STAT(func->etype);
1527 /*-----------------------------------------------------------------*/
1528 /* isSymbolEqual - compares two symbols return 1 if they match */
1529 /*-----------------------------------------------------------------*/
1530 int isSymbolEqual (symbol *dest, symbol *src)
1532 /* if pointers match then equal */
1536 /* if one of them is null then don't match */
1540 /* if both of them have rname match on rname */
1541 if (dest->rname[0] && src->rname[0])
1542 return (!strcmp(dest->rname,src->rname));
1544 /* otherwise match on name */
1545 return (!strcmp(dest->name,src->name));
1548 /*-----------------------------------------------------------------*/
1549 /* printTypeChain - prints the type chain in human readable form */
1550 /*-----------------------------------------------------------------*/
1551 void printTypeChain (sym_link *type, FILE *of)
1561 if (IS_DECL(type)) {
1562 switch (DCL_TYPE(type)) {
1564 fprintf (of,"function ");
1567 fprintf (of,"_generic * ");
1568 if (DCL_PTR_CONST(type))
1569 fprintf(of,"const ");
1572 fprintf (of,"_code * ");
1573 if (DCL_PTR_CONST(type))
1574 fprintf(of,"const ");
1577 fprintf (of,"_far * ");
1578 if (DCL_PTR_CONST(type))
1579 fprintf(of,"const ");
1582 fprintf (of,"_eeprom * ");
1583 if (DCL_PTR_CONST(type))
1584 fprintf(of,"const ");
1588 fprintf (of,"_near * ");
1589 if (DCL_PTR_CONST(type))
1590 fprintf(of,"const ");
1593 fprintf (of,"_idata *");
1594 if (DCL_PTR_CONST(type))
1595 fprintf(of,"const ");
1598 fprintf (of,"_pdata *");
1599 if (DCL_PTR_CONST(type))
1600 fprintf(of,"const ");
1603 fprintf (of," _unkown *");
1604 if (DCL_PTR_CONST(type))
1605 fprintf(of,"const ");
1609 fprintf (of,"array of ");
1613 if (SPEC_VOLATILE(type))
1614 fprintf (of,"volatile ");
1615 if (SPEC_USIGN(type))
1616 fprintf (of,"unsigned ");
1618 switch (SPEC_NOUN(type)) {
1621 fprintf (of,"long ");
1624 fprintf (of,"short ");
1626 fprintf (of,"int ");
1630 fprintf(of,"char ");
1634 fprintf(of,"void ");
1638 fprintf(of,"float ");
1642 fprintf(of,"struct %s",SPEC_STRUCT(type)->tag);
1646 fprintf(of,"sbit ");
1650 fprintf(of,"bit {%d,%d}",SPEC_BSTR(type),SPEC_BLEN(type));
1663 /*-----------------------------------------------------------------*/
1664 /* cdbTypeInfo - print the type information for debugger */
1665 /*-----------------------------------------------------------------*/
1666 void cdbTypeInfo (sym_link *type,FILE *of)
1668 fprintf(of,"{%d}",getSize(type));
1670 if (IS_DECL(type)) {
1671 switch (DCL_TYPE(type)) {
1697 fprintf (of,"DA%d,",DCL_ELEM(type));
1703 switch (SPEC_NOUN(type)) {
1727 fprintf(of,"ST%s",SPEC_STRUCT(type)->tag);
1735 fprintf(of,"SB%d$%d",SPEC_BSTR(type),SPEC_BLEN(type));
1742 if (SPEC_USIGN(type))
1750 /*-----------------------------------------------------------------*/
1751 /* cdbSymbol - prints a symbol & its type information for debugger */
1752 /*-----------------------------------------------------------------*/
1753 void cdbSymbol ( symbol *sym, FILE *of, int isStructSym, int isFunc)
1765 fprintf(of,"S:"); /* symbol record */
1766 /* if this is not a structure symbol then
1767 we need to figure out the scope information */
1771 if (IS_STATIC(sym->etype))
1772 fprintf(of,"F%s$",moduleName); /* scope is file */
1774 fprintf(of,"G$"); /* scope is global */
1777 /* symbol is local */
1778 fprintf(of,"L%s$",(sym->localof ? sym->localof->name : "-null-"));
1780 fprintf(of,"S$"); /* scope is structure */
1782 /* print the name, & mangled name */
1783 fprintf(of,"%s$%d$%d(",sym->name,
1784 sym->level,sym->block);
1786 cdbTypeInfo(sym->type,of);
1789 /* print the address space */
1790 map = SPEC_OCLS(sym->etype);
1791 fprintf(of,"%c,%d,%d",
1792 (map ? map->dbName : 'Z') ,sym->onStack,SPEC_STAK(sym->etype));
1794 /* if assigned to registers then output register names */
1795 /* if this is a function then print
1796 if is it an interrupt routine & interrupt number
1797 and the register bank it is using */
1799 fprintf(of,",%d,%d,%d",SPEC_INTRTN(sym->etype),
1800 SPEC_INTN(sym->etype),SPEC_BANK(sym->etype));
1801 /* alternate location to find this symbol @ : eg registers
1808 /*-----------------------------------------------------------------*/
1809 /* cdbStruct - print a structure for debugger */
1810 /*-----------------------------------------------------------------*/
1811 void cdbStruct ( structdef *sdef,int block,FILE *of,
1812 int inStruct, char *tag)
1817 /* if block # then must have function scope */
1818 fprintf(of,"F%s$",moduleName);
1819 fprintf(of,"%s[",(tag ? tag : sdef->tag));
1820 for (sym=sdef->fields ; sym ; sym = sym->next) {
1821 fprintf(of,"({%d}",sym->offset);
1822 cdbSymbol(sym,of,TRUE,FALSE);
1830 /*------------------------------------------------------------------*/
1831 /* cdbStructBlock - calls struct printing for a blcks */
1832 /*------------------------------------------------------------------*/
1833 void cdbStructBlock (int block , FILE *of)
1836 bucket **table = StructTab;
1840 /* go thru the entire table */
1841 for ( i = 0 ; i < 256; i++ ) {
1842 for ( chain = table[i]; chain ; chain = chain->next ) {
1843 if (chain->block >= block) {
1844 cdbStruct((structdef *)chain->sym, chain->block ,of,0,NULL);
1850 /*-----------------------------------------------------------------*/
1851 /* powof2 - returns power of two for the number if number is pow 2 */
1852 /*-----------------------------------------------------------------*/
1853 int powof2 (unsigned long num)
1859 if (num & 1) n1s++ ;
1864 if (n1s > 1 || nshifts == 0) return 0;
1865 return nshifts - 1 ;
1879 /* Dims: mul/div/mod, BYTE/WORD/DWORD, SIGNED/UNSIGNED */
1880 symbol *__muldiv[3][3][2];
1881 /* Dims: BYTE/WORD/DWORD SIGNED/UNSIGNED */
1882 sym_link *__multypes[3][2];
1883 /* Dims: to/from float, BYTE/WORD/DWORD, SIGNED/USIGNED */
1884 symbol *__conv[2][3][2];
1886 sym_link *floatType;
1888 static void _makeRegParam(symbol *sym)
1892 val = sym->args; /* loop thru all the arguments */
1894 /* reset regparm for the port */
1895 (*port->reset_regparms)();
1897 SPEC_REGPARM(val->etype) = 1;
1898 sym->argStack -= getSize(val->type);
1903 /*-----------------------------------------------------------------*/
1904 /* initCSupport - create functions for C support routines */
1905 /*-----------------------------------------------------------------*/
1906 void initCSupport ()
1908 const char *smuldivmod[] = {
1911 const char *sbwd[] = {
1912 "char", "int", "long"
1914 const char *ssu[] = {
1918 int bwd, su, muldivmod, tofrom;
1920 floatType= newFloatLink();
1922 for (bwd = 0; bwd < 3; bwd++) {
1937 __multypes[bwd][0] = l;
1938 __multypes[bwd][1] = copyLinkChain(l);
1939 SPEC_USIGN(__multypes[bwd][1]) = 1;
1942 __fsadd = funcOfType ("__fsadd", floatType, floatType, 2, options.float_rent);
1943 __fssub = funcOfType ("__fssub", floatType, floatType, 2, options.float_rent);
1944 __fsmul = funcOfType ("__fsmul", floatType, floatType, 2, options.float_rent);
1945 __fsdiv = funcOfType ("__fsdiv", floatType, floatType, 2, options.float_rent);
1946 __fseq = funcOfType ("__fseq", CHARTYPE, floatType, 2, options.float_rent);
1947 __fsneq = funcOfType ("__fsneq", CHARTYPE, floatType, 2, options.float_rent);
1948 __fslt = funcOfType ("__fslt", CHARTYPE, floatType, 2, options.float_rent);
1949 __fslteq= funcOfType ("__fslteq", CHARTYPE, floatType, 2, options.float_rent);
1950 __fsgt = funcOfType ("__fsgt", CHARTYPE, floatType, 2, options.float_rent);
1951 __fsgteq= funcOfType ("__fsgteq", CHARTYPE, floatType, 2, options.float_rent);
1953 for (tofrom = 0; tofrom < 2; tofrom++) {
1954 for (bwd = 0; bwd < 3; bwd++) {
1955 for (su = 0; su < 2; su++) {
1957 sprintf(buffer, "__fs2%s%s", ssu[su], sbwd[bwd]);
1958 __conv[tofrom][bwd][su] = funcOfType(buffer, __multypes[bwd][su], floatType, 1, options.float_rent);
1961 sprintf(buffer, "__%s%s2fs", ssu[su], sbwd[bwd]);
1962 __conv[tofrom][bwd][su] = funcOfType(buffer, floatType, __multypes[bwd][su], 1, options.float_rent);
1968 for (muldivmod = 0; muldivmod < 3; muldivmod++) {
1969 for (bwd = 0; bwd < 3; bwd++) {
1970 for (su = 0; su < 2; su++) {
1971 sprintf(buffer, "_%s%s%s",
1972 smuldivmod[muldivmod],
1975 __muldiv[muldivmod][bwd][su] = funcOfType(buffer, __multypes[bwd][su], __multypes[bwd][su], 2, options.intlong_rent);
1976 SPEC_NONBANKED(__muldiv[muldivmod][bwd][su]->etype) = 1;
1977 if (bwd < port->muldiv.force_reg_param_below)
1978 _makeRegParam(__muldiv[muldivmod][bwd][su]);