X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fpic16%2Fglue.c;h=4c60e4d5dce7433c20e3857d2391084a7d3e7f6a;hb=7621eff72ff61f576c7a04d730ff6aba083b4a8a;hp=fac38d547d0e08f9944c828dae769c8e025dffb2;hpb=bc9fd22ba45b932664a8bcff637c5a1971d1c448;p=fw%2Fsdcc diff --git a/src/pic16/glue.c b/src/pic16/glue.c index fac38d54..4c60e4d5 100644 --- a/src/pic16/glue.c +++ b/src/pic16/glue.c @@ -1,6 +1,6 @@ /*------------------------------------------------------------------------- - SDCCglue.c - glues everything we have done together into one file. + glue.c - glues everything we have done together into one file. Written By - Sandeep Dutta . sandeep.dutta@usa.net (1998) This program is free software; you can redistribute it and/or modify it @@ -27,6 +27,12 @@ #include "ralloc.h" #include "pcode.h" #include "newalloc.h" +#include "gen.h" +#include "device.h" +#include "main.h" +#include + +#include #ifdef WORDS_BIGENDIAN @@ -38,9 +44,10 @@ #define BYTE_IN_LONG(x,b) ((x>>(8*_ENDIAN(b)))&0xff) extern symbol *interrupts[256]; -static void printIval (symbol * sym, sym_link * type, initList * ilist, pBlock *pb); +void pic16_printIval (symbol * sym, sym_link * type, initList * ilist, char ptype, void *p); extern int noAlloc; extern set *publics; +extern set *externs; extern unsigned maxInterrupts; extern int maxRegBank; extern symbol *mainf; @@ -52,6 +59,11 @@ extern char *iComments1; extern char *iComments2; //extern void emitStaticSeg (memmap * map); +extern int initsfpnt; + +set *rel_idataSymSet=NULL; +set *fix_idataSymSet=NULL; + extern DEFSETFUNC (closeTmpFiles); extern DEFSETFUNC (rmTmpFiles); @@ -63,8 +75,11 @@ extern void pic16_writeUsedRegs(FILE *); extern void initialComments (FILE * afile); extern void printPublics (FILE * afile); -extern void printChar (FILE * ofile, char *s, int plen); void pic16_pCodeInitRegisters(void); +pCodeOp *pic16_popGetLit(unsigned int lit); +pCodeOp *pic16_popGetLit2(unsigned int lit, pCodeOp *arg2); +pCodeOp *pic16_popCopyReg(pCodeOpReg *pc); +extern void pic16_pCodeConstString(char *name, char *value); /*-----------------------------------------------------------------*/ /* aopLiteral - string from a literal value */ @@ -94,6 +109,10 @@ int pic16aopLiteral (value *val, int offset) } +iCode *tic; +symbol *nsym; +char tbuffer[512], *tbuf=tbuffer;; + /*-----------------------------------------------------------------*/ /* emitRegularMap - emit code for maps with no special cases */ @@ -102,117 +121,453 @@ static void pic16emitRegularMap (memmap * map, bool addPublics, bool arFlag) { symbol *sym; - int i, size, bitvars = 0;; +// int i, size, bitvars = 0;; - if (addPublics) - fprintf (map->oFile, ";\t.area\t%s\n", map->sname); +// fprintf(stderr, "%s:%d map name= %s\n", __FUNCTION__, __LINE__, map->sname); + + if(addPublics) + fprintf (map->oFile, ";\t.area\t%s\n", map->sname); + /* print the area name */ - /* print the area name */ - for (sym = setFirstItem (map->syms); sym; - sym = setNextItem (map->syms)) - { + for (sym = setFirstItem (map->syms); sym; sym = setNextItem (map->syms)) { - /* if extern then do nothing */ - if (IS_EXTERN (sym->etype)) - continue; - - /* if allocation required check is needed - then check if the symbol really requires - allocation only for local variables */ - if (arFlag && !IS_AGGREGATE (sym->type) && - !(sym->_isparm && !IS_REGPARM (sym->etype)) && - !sym->allocreq && sym->level) - continue; - - /* if global variable & not static or extern - and addPublics allowed then add it to the public set */ - if ((sym->level == 0 || - (sym->_isparm && !IS_REGPARM (sym->etype))) && - addPublics && - !IS_STATIC (sym->etype)) - addSetHead (&publics, sym); - - /* if extern then do nothing or is a function - then do nothing */ - if (IS_FUNC (sym->type)) - continue; #if 0 - /* print extra debug info if required */ - if (options.debug || sym->level == 0) - { + fprintf(stderr, "\t%s: sym: %s\tused: %d\textern: %d\tstatic: %d\taggregate: %d\n", + map->sname, sym->name, sym->used, IS_EXTERN(sym->etype), IS_STATIC(sym->etype), + IS_AGGREGATE(sym->type)); + printTypeChain( sym->type, stderr ); + fprintf(stderr, "\n"); +#endif - cdbSymbol (sym, cdbFile, FALSE, FALSE); +// if(PIC16_IS_CONFIG_ADDRESS(SPEC_ADDR(sym->etype))) +// continue; - if (!sym->level) /* global */ - if (IS_STATIC (sym->etype)) - fprintf (map->oFile, "F%s_", moduleName); /* scope is file */ - else - fprintf (map->oFile, "G_"); /* scope is global */ - else - /* symbol is local */ - fprintf (map->oFile, "L%s_", (sym->localof ? sym->localof->name : "-null-")); - fprintf (map->oFile, "%s_%d_%d", sym->name, sym->level, sym->block); - } + + /* if extern then add to externs */ + if (IS_EXTERN (sym->etype)) { + checkAddSym(&externs, sym); + continue; + } + + /* if allocation required check is needed + * then check if the symbol really requires + * allocation only for local variables */ + if (arFlag && !IS_AGGREGATE (sym->type) && + !(sym->_isparm && !IS_REGPARM (sym->etype)) && + !sym->allocreq && sym->level) { + +// fprintf(stderr, "%s:%d special case, continuing...\n", __FILE__, __LINE__); + + continue; + } + + /* if global variable & not static or extern + * and addPublics allowed then add it to the public set */ + if ((sym->used) && (sym->level == 0 || + (sym->_isparm && !IS_REGPARM (sym->etype))) && + addPublics && + !IS_STATIC (sym->etype) && !IS_FUNC(sym->type)) { + + checkAddSym(&publics, sym); + } else + if(IS_STATIC(sym->etype) + && !(sym->ival && !sym->level) + ) { + regs *reg; + /* add it to udata list */ + +// fprintf(stderr, "%s:%d adding %s (%s) remat=%d\n", __FILE__, __LINE__, +// sym->name, sym->rname, sym->remat); + + //, OP_SYMBOL(operandFromSymbol(sym))->name); +#define SET_IMPLICIT 1 + +#if SET_IMPLICIT + if(IS_STRUCT(sym->type)) + sym->implicit = 1; #endif - /* if is has an absolute address then generate - an equate for this no need to allocate space */ - if (SPEC_ABSA (sym->etype)) - { - //if (options.debug || sym->level == 0) - //fprintf (map->oFile,"; == 0x%04x\n",SPEC_ADDR (sym->etype)); + reg = pic16_allocDirReg( operandFromSymbol( sym )); + checkAddReg(&pic16_rel_udata, reg); + } + + /* if extern then do nothing or is a function + * then do nothing */ + if (IS_FUNC (sym->type) && !IS_STATIC(sym->etype)) { + if(SPEC_OCLS(sym->etype) == code) { +// fprintf(stderr, "%s:%d: symbol added: %s\n", __FILE__, __LINE__, sym->rname); + checkAddSym(&publics, sym); + } + continue; + } - fprintf (map->oFile, "%s\tEQU\t0x%04x\n", - sym->rname, - SPEC_ADDR (sym->etype)); - } - else - { - /* allocate space */ +#if 0 + /* print extra debug info if required */ + if (options.debug || sym->level == 0) { + cdbWriteSymbol (sym); //, cdbFile, FALSE, FALSE); + + if (!sym->level) /* global */ + if (IS_STATIC (sym->etype)) + fprintf (map->oFile, "F%s_", moduleName); /* scope is file */ + else + fprintf (map->oFile, "G_"); /* scope is global */ + else + /* symbol is local */ + fprintf (map->oFile, "L%s_", (sym->localof ? sym->localof->name : "-null-")); + fprintf (map->oFile, "%s_%d_%d", sym->name, sym->level, sym->block); + } +#endif - /* If this is a bit variable, then allocate storage after 8 bits have been declared */ - /* unlike the 8051, the pic does not have a separate bit area. So we emulate bit ram */ - /* by grouping the bits together into groups of 8 and storing them in the normal ram. */ - if (IS_BITVAR (sym->etype)) - { - bitvars++; - } - else - { - fprintf (map->oFile, "\t%s\n", sym->rname); - if ((size = (unsigned int) getSize (sym->type) & 0xffff) > 1) - { - for (i = 1; i < size; i++) - fprintf (map->oFile, "\t%s_%d\n", sym->rname, i); + + /* if is has an absolute address then generate + an equate for this no need to allocate space */ + if (SPEC_ABSA (sym->etype)) { +// if (options.debug || sym->level == 0) +// fprintf (stderr,"; %s == 0x%04x\t\treqv= %p nRegs= %d\n", +// sym->name, SPEC_ADDR (sym->etype), sym->reqv, sym->regType); + + fprintf (map->oFile, "%s\tEQU\t0x%04x\n", + sym->rname, + SPEC_ADDR (sym->etype)); + + /* emit only if it is global */ + if(sym->level == 0) { + regs *reg; + + reg = pic16_dirregWithName( sym->name ); + if(!reg) { + /* here */ +// fprintf(stderr, "%s:%d: implicit add of symbol = %s\n", +// __FUNCTION__, __LINE__, sym->name); + + /* if IS_STRUCT is omitted the following + * fixes structures but break char/int etc */ +#if SET_IMPLICIT + if(IS_STRUCT(sym->type)) + sym->implicit = 1; // mark as implicit +#endif + if(!sym->ival) { + reg = pic16_allocDirReg( operandFromSymbol(sym) ); + if(reg) { + if(checkAddReg(&pic16_fix_udata, reg)) { + /* and add to globals list if not exist */ + addSet(&publics, sym); + } + } + } else + addSet(&publics, sym); + } + } + } else { + if(!sym->used && (sym->level == 0)) { + regs *reg; + + /* symbol not used, just declared probably, but its in + * level 0, so we must declare it fine as global */ + +// fprintf(stderr, "EXTRA symbol declaration sym= %s\n", sym->name); + +#if SET_IMPLICIT + if(IS_STRUCT(sym->type)) + sym->implicit = 1; // mark as implicit +#endif + if(!sym->ival) { + if(IS_AGGREGATE(sym->type)) { + reg=pic16_allocRegByName(sym->rname, getSize( sym->type ), NULL); + } else { + reg = pic16_allocDirReg( operandFromSymbol( sym ) ); + } + if(checkAddReg(&pic16_rel_udata, reg)) { + addSetHead(&publics, sym); + } + } else + addSetHead(&publics, sym); + } + +#if 0 + /* allocate space */ + /* If this is a bit variable, then allocate storage after 8 bits have been declared */ + /* unlike the 8051, the pic does not have a separate bit area. So we emulate bit ram */ + /* by grouping the bits together into groups of 8 and storing them in the normal ram. */ + if (IS_BITVAR (sym->etype)) { + bitvars++; + } else { + fprintf (map->oFile, "\t%s\n", sym->rname); + if ((size = (unsigned int) getSize (sym->type) & 0xffff) > 1) { + for (i = 1; i < size; i++) + fprintf (map->oFile, "\t%s_%d\n", sym->rname, i); + } + } + fprintf (map->oFile, "\t.ds\t0x%04x\n", (unsigned int)getSize (sym->type) & 0xffff); +#endif } - } - //fprintf (map->oFile, "\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 && sym->level == 0) { - ast *ival = NULL; - - if (IS_AGGREGATE (sym->type)) - ival = initAggregates (sym, sym->ival, NULL); - else - ival = newNode ('=', newAst_VALUE(symbolVal (sym)), - decorateType (resolveSymbols (list2expr (sym->ival)))); - codeOutFile = statsg->oFile; - GcurMemmap = statsg; - eBBlockFromiCode (iCodeFromAst (ival)); - sym->ival = NULL; + /* FIXME -- VR Fix the following, so that syms to be placed + * in the idata section and let linker decide about their fate */ + + /* if it has an initial value then do it only if + it is a global variable */ + + if (sym->ival && sym->level == 0) { + ast *ival = NULL; + +#if 0 + if(SPEC_OCLS(sym->etype)==data) { + fprintf(stderr, "%s: sym %s placed in data segment\n", map->sname, sym->name); + } + + if(SPEC_OCLS(sym->etype)==code) { + fprintf(stderr, "%s: sym %s placed in code segment\n", map->sname, sym->name); + } +#endif + +#if 0 + fprintf(stderr, "'%s': sym '%s' has initial value SPEC_ABSA: %d, IS_AGGREGATE: %d\n", + map->sname, sym->name, SPEC_ABSA(sym->etype), IS_AGGREGATE(sym->type)); +#endif + + if (IS_AGGREGATE (sym->type)) { + if(SPEC_ABSA(sym->etype)) + addSet(&fix_idataSymSet, copySymbol(sym)); + else + addSet(&rel_idataSymSet, copySymbol(sym)); +// ival = initAggregates (sym, sym->ival, NULL); + } else { + if(SPEC_ABSA(sym->etype)) + addSet(&fix_idataSymSet, copySymbol(sym)); + else + addSet(&rel_idataSymSet, copySymbol(sym)); + +// ival = newNode ('=', newAst_VALUE(symbolVal (sym)), +// decorateType (resolveSymbols (list2expr (sym->ival)), RESULT_CHECK)); + } + + if(ival) { + setAstLineno(ival, sym->lineDef); + codeOutFile = statsg->oFile; + GcurMemmap = statsg; + eBBlockFromiCode (iCodeFromAst (ival)); + sym->ival = NULL; + } + } } +} + + +/*-----------------------------------------------------------------*/ +/* pic16_initPointer - pointer initialization code massaging */ +/*-----------------------------------------------------------------*/ +value *pic16_initPointer (initList * ilist, sym_link *toType) +{ + value *val; + ast *expr; + + if (!ilist) { + return valCastLiteral(toType, 0.0); + } + + expr = list2expr (ilist); + + if (!expr) + goto wrong; + + /* try it the old way first */ + if ((val = constExprValue (expr, FALSE))) + return val; + + /* ( ptr + constant ) */ + if (IS_AST_OP (expr) && + (expr->opval.op == '+' || expr->opval.op == '-') && + IS_AST_SYM_VALUE (expr->left) && + (IS_ARRAY(expr->left->ftype) || IS_PTR(expr->left->ftype)) && + compareType(toType, expr->left->ftype) && + IS_AST_LIT_VALUE (expr->right)) { + return valForCastAggr (expr->left, expr->left->ftype, + expr->right, + expr->opval.op); + } + + /* (char *)&a */ + if (IS_AST_OP(expr) && expr->opval.op==CAST && + IS_AST_OP(expr->right) && expr->right->opval.op=='&') { + if (compareType(toType, expr->left->ftype)!=1) { + werror (W_INIT_WRONG); + printFromToType(expr->left->ftype, toType); + } + // skip the cast ??? + expr=expr->right; + } + + /* no then we have to do these cludgy checks */ + /* pointers can be initialized with address of + a variable or address of an array element */ + if (IS_AST_OP (expr) && expr->opval.op == '&') { + /* address of symbol */ + if (IS_AST_SYM_VALUE (expr->left)) { + val = copyValue (AST_VALUE (expr->left)); + val->type = newLink (DECLARATOR); + if (SPEC_SCLS (expr->left->etype) == S_CODE) { + DCL_TYPE (val->type) = CPOINTER; + DCL_PTR_CONST (val->type) = port->mem.code_ro; + } + else if (SPEC_SCLS (expr->left->etype) == S_XDATA) + DCL_TYPE (val->type) = FPOINTER; + else if (SPEC_SCLS (expr->left->etype) == S_XSTACK) + DCL_TYPE (val->type) = PPOINTER; + else if (SPEC_SCLS (expr->left->etype) == S_IDATA) + DCL_TYPE (val->type) = IPOINTER; + else if (SPEC_SCLS (expr->left->etype) == S_EEPROM) + DCL_TYPE (val->type) = EEPPOINTER; + else + DCL_TYPE (val->type) = POINTER; + val->type->next = expr->left->ftype; + val->etype = getSpec (val->type); + return val; + } + + /* if address of indexed array */ + if (IS_AST_OP (expr->left) && expr->left->opval.op == '[') + return valForArray (expr->left); + + /* if address of structure element then + case 1. a.b ; */ + if (IS_AST_OP (expr->left) && + expr->left->opval.op == '.') { + return valForStructElem (expr->left->left, + expr->left->right); + } + + /* case 2. (&a)->b ; + (&some_struct)->element */ + if (IS_AST_OP (expr->left) && + expr->left->opval.op == PTR_OP && + IS_ADDRESS_OF_OP (expr->left->left)) { + return valForStructElem (expr->left->left->left, + expr->left->right); } + } + /* case 3. (((char *) &a) +/- constant) */ + if (IS_AST_OP (expr) && + (expr->opval.op == '+' || expr->opval.op == '-') && + IS_AST_OP (expr->left) && expr->left->opval.op == CAST && + IS_AST_OP (expr->left->right) && + expr->left->right->opval.op == '&' && + IS_AST_LIT_VALUE (expr->right)) { + + return valForCastAggr (expr->left->right->left, + expr->left->left->opval.lnk, + expr->right, expr->opval.op); + + } + /* case 4. (char *)(array type) */ + if (IS_CAST_OP(expr) && IS_AST_SYM_VALUE (expr->right) && + IS_ARRAY(expr->right->ftype)) { + + val = copyValue (AST_VALUE (expr->right)); + val->type = newLink (DECLARATOR); + if (SPEC_SCLS (expr->right->etype) == S_CODE) { + DCL_TYPE (val->type) = CPOINTER; + DCL_PTR_CONST (val->type) = port->mem.code_ro; + } + else if (SPEC_SCLS (expr->right->etype) == S_XDATA) + DCL_TYPE (val->type) = FPOINTER; + else if (SPEC_SCLS (expr->right->etype) == S_XSTACK) + DCL_TYPE (val->type) = PPOINTER; + else if (SPEC_SCLS (expr->right->etype) == S_IDATA) + DCL_TYPE (val->type) = IPOINTER; + else if (SPEC_SCLS (expr->right->etype) == S_EEPROM) + DCL_TYPE (val->type) = EEPPOINTER; + else + DCL_TYPE (val->type) = POINTER; + val->type->next = expr->right->ftype->next; + val->etype = getSpec (val->type); + return val; + } + wrong: + if (expr) + werrorfl (expr->filename, expr->lineno, E_INCOMPAT_PTYPES); + else + werror (E_INCOMPAT_PTYPES); + return NULL; + +} + + +/*-----------------------------------------------------------------*/ +/* return the generic pointer high byte for a given pointer type. */ +/*-----------------------------------------------------------------*/ +int pic16_pointerTypeToGPByte (const int p_type, const char *iname, const char *oname) +{ + switch (p_type) + { + case IPOINTER: + case POINTER: + fprintf(stderr, "%s:%d pointer is IPOINTER/POINTER\n", __FILE__, __LINE__); + return GPTYPE_NEAR; + case GPOINTER: + fprintf(stderr, "%s:%d pointer is GPOINTER\n", __FILE__, __LINE__); + werror (E_CANNOT_USE_GENERIC_POINTER, + iname ? iname : "", + oname ? oname : ""); + exit (1); + case FPOINTER: + fprintf(stderr, "%s:%d pointer is FPOINTER\n", __FILE__, __LINE__); + return GPTYPE_FAR; + case CPOINTER: + fprintf(stderr, "%s:%d pointer is CPOINTER\n", __FILE__, __LINE__); + return GPTYPE_CODE; + case PPOINTER: + fprintf(stderr, "%s:%d pointer is PPOINTER\n", __FILE__, __LINE__); + return GPTYPE_XSTACK; + default: + fprintf (stderr, "*** internal error: unknown pointer type %d in GPByte.\n", + p_type); + break; + } + return -1; +} + + +/*-----------------------------------------------------------------*/ +/* printPointerType - generates ival for pointer type */ +/*-----------------------------------------------------------------*/ +void _pic16_printPointerType (const char *name, char ptype, void *p) +{ + char buf[256]; + + sprintf(buf, "LOW(%s)", name); + pic16_emitDS(buf, ptype, p); + sprintf(buf, "HIGH(%s)", name); + pic16_emitDS(buf, ptype, p); +} + +/*-----------------------------------------------------------------*/ +/* printPointerType - generates ival for pointer type */ +/*-----------------------------------------------------------------*/ +void pic16_printPointerType (const char *name, char ptype, void *p) +{ + _pic16_printPointerType (name, ptype, p); + pic16_flushDB(ptype, p); +} + +/*-----------------------------------------------------------------*/ +/* printGPointerType - generates ival for generic pointer type */ +/*-----------------------------------------------------------------*/ +void pic16_printGPointerType (const char *iname, const char *oname, + const unsigned int type, char ptype, void *p) +{ + _pic16_printPointerType (iname, ptype, p); + pic16_emitDB(pic16_pointerTypeToGPByte(type, iname, oname), ptype, p); + pic16_flushDB(ptype, p); } + /*-----------------------------------------------------------------*/ -/* printIvalType - generates ival for int/char */ +/* pic16_printIvalType - generates ival for int/char */ /*-----------------------------------------------------------------*/ static void -printIvalType (symbol *sym, sym_link * type, initList * ilist, pBlock *pb) +pic16_printIvalType (symbol *sym, sym_link * type, initList * ilist, char ptype, void *p) { value *val; unsigned long ulval; @@ -220,7 +575,7 @@ printIvalType (symbol *sym, sym_link * type, initList * ilist, pBlock *pb) //fprintf(stderr, "%s\n",__FUNCTION__); /* if initList is deep */ - if (ilist->type == INIT_DEEP) + if (ilist && ilist->type == INIT_DEEP) ilist = ilist->init.deep; if (!IS_AGGREGATE(sym->type) && getNelements(type, ilist)>1) { @@ -243,36 +598,37 @@ printIvalType (symbol *sym, sym_link * type, initList * ilist, pBlock *pb) switch (getSize (type)) { case 1: - pic16_addpCode2pBlock(pb,pic16_newpCode(POC_RETLW,pic16_newpCodeOpLit(BYTE_IN_LONG(ulval,0)))); + pic16_emitDB(BYTE_IN_LONG(ulval,0), ptype, p); break; case 2: - pic16_addpCode2pBlock(pb,pic16_newpCode(POC_RETLW,pic16_newpCodeOpLit(BYTE_IN_LONG(ulval,0)))); - pic16_addpCode2pBlock(pb,pic16_newpCode(POC_RETLW,pic16_newpCodeOpLit(BYTE_IN_LONG(ulval,1)))); + pic16_emitDB(BYTE_IN_LONG(ulval,0), ptype, p); + pic16_emitDB(BYTE_IN_LONG(ulval,1), ptype, p); break; case 4: - pic16_addpCode2pBlock(pb,pic16_newpCode(POC_RETLW,pic16_newpCodeOpLit(BYTE_IN_LONG(ulval,0)))); - pic16_addpCode2pBlock(pb,pic16_newpCode(POC_RETLW,pic16_newpCodeOpLit(BYTE_IN_LONG(ulval,1)))); - pic16_addpCode2pBlock(pb,pic16_newpCode(POC_RETLW,pic16_newpCodeOpLit(BYTE_IN_LONG(ulval,2)))); - pic16_addpCode2pBlock(pb,pic16_newpCode(POC_RETLW,pic16_newpCodeOpLit(BYTE_IN_LONG(ulval,3)))); + pic16_emitDB(BYTE_IN_LONG(ulval,0), ptype, p); + pic16_emitDB(BYTE_IN_LONG(ulval,1), ptype, p); + pic16_emitDB(BYTE_IN_LONG(ulval,2), ptype, p); + pic16_emitDB(BYTE_IN_LONG(ulval,3), ptype, p); break; } } -/*-----------------------------------------------------------------*/ -/* printIvalChar - generates initital value for character array */ -/*-----------------------------------------------------------------*/ +/*--------------------------------------------------------------------*/ +/* pic16_printIvalChar - generates initital value for character array */ +/*--------------------------------------------------------------------*/ static int -printIvalChar (sym_link * type, initList * ilist, pBlock *pb, char *s) +pic16_printIvalChar (sym_link * type, initList * ilist, char *s, char ptype, void *p) { value *val; int remain; - if(!pb) + if(!p) return 0; - fprintf(stderr, "%s\n",__FUNCTION__); + + // fprintf(stderr, "%s\n",__FUNCTION__); if (!s) { @@ -283,60 +639,57 @@ printIvalChar (sym_link * type, initList * ilist, pBlock *pb, char *s) if (!DCL_ELEM (type)) DCL_ELEM (type) = strlen (SPEC_CVAL (val->etype).v_char) + 1; - //printChar (oFile, SPEC_CVAL (val->etype).v_char, DCL_ELEM (type)); - //fprintf(stderr, "%s omitting call to printChar\n",__FUNCTION__); - pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(";omitting call to printChar")); - - if ((remain = (DCL_ELEM (type) - strlen (SPEC_CVAL (val->etype).v_char) - 1)) > 0) - while (remain--) - //tfprintf (oFile, "\t!db !constbyte\n", 0); - pic16_addpCode2pBlock(pb,pic16_newpCode(POC_RETLW,pic16_newpCodeOpLit(0))); + for(remain=0; remainetype).v_char[ remain ], ptype, p); + + if ((remain = (DCL_ELEM (type) - strlen (SPEC_CVAL (val->etype).v_char) - 1)) > 0) { + while (remain--) { + pic16_emitDB(0x00, ptype, p); + } + } return 1; } else return 0; } else { - //printChar (oFile, s, strlen (s) + 1); - for(remain=0; remainnext)) { - //fprintf(stderr,"%s:%d - is_char\n",__FUNCTION__,__LINE__); if (!IS_LITERAL(list2val(ilist)->etype)) { werror (W_INIT_WRONG); return; } - if (printIvalChar (type, + + if(pic16_printIvalChar (type, (ilist->type == INIT_DEEP ? ilist->init.deep : ilist), - pb, SPEC_CVAL (sym->etype).v_char)) + SPEC_CVAL (sym->etype).v_char, ptype, p)) return; } /* not the special case */ - if (ilist->type != INIT_DEEP) + if (ilist && ilist->type != INIT_DEEP) { werror (E_INIT_STRUCT, sym->name); return; @@ -347,9 +700,8 @@ printIvalArray (symbol * sym, sym_link * type, initList * ilist, for (;;) { - //fprintf(stderr,"%s:%d - is_char\n",__FUNCTION__,__LINE__); size++; - printIval (sym, type->next, iloop, pb); + pic16_printIval (sym, type->next, iloop, ptype, p); iloop = (iloop ? iloop->next : NULL); @@ -377,48 +729,418 @@ printIvalArray (symbol * sym, sym_link * type, initList * ilist, } /*-----------------------------------------------------------------*/ -/* printIval - generates code for initial value */ +/* pic16_printIvalBitFields - generate initializer for bitfields */ /*-----------------------------------------------------------------*/ -static void -printIval (symbol * sym, sym_link * type, initList * ilist, pBlock *pb) +void pic16_printIvalBitFields(symbol **sym, initList **ilist, char ptype, void *p) +{ + value *val ; + symbol *lsym = *sym; + initList *lilist = *ilist ; + unsigned long ival = 0; + int size =0; + + + do { + unsigned long i; + val = list2val(lilist); + if (size) { + if (SPEC_BLEN(lsym->etype) > 8) { + size += ((SPEC_BLEN (lsym->etype) / 8) + + (SPEC_BLEN (lsym->etype) % 8 ? 1 : 0)); + } + } else { + size = ((SPEC_BLEN (lsym->etype) / 8) + + (SPEC_BLEN (lsym->etype) % 8 ? 1 : 0)); + } + i = (unsigned long)floatFromVal(val); + i <<= SPEC_BSTR (lsym->etype); + ival |= i; + if (! ( lsym->next && + (IS_BITFIELD(lsym->next->type)) && + (SPEC_BSTR(lsym->next->etype)))) break; + lsym = lsym->next; + lilist = lilist->next; + } while (1); + switch (size) { + case 1: + pic16_emitDB(BYTE_IN_LONG(ival, 0), ptype, p); + break; + + case 2: + pic16_emitDB(BYTE_IN_LONG(ival, 0), ptype, p); + pic16_emitDB(BYTE_IN_LONG(ival, 1), ptype, p); + break; + + case 4: /* EEP: why is this db and not dw? */ + pic16_emitDB(BYTE_IN_LONG(ival, 0), ptype, p); + pic16_emitDB(BYTE_IN_LONG(ival, 1), ptype, p); + pic16_emitDB(BYTE_IN_LONG(ival, 2), ptype, p); + pic16_emitDB(BYTE_IN_LONG(ival, 3), ptype, p); + break; + default: + /* VR - only 1,2,4 size long can be handled???? Why? */ + fprintf(stderr, "%s:%d: unhandled case. Contact author.\n", __FILE__, __LINE__); + } + *sym = lsym; + *ilist = lilist; +} + + +/*-----------------------------------------------------------------*/ +/* printIvalStruct - generates initial value for structures */ +/*-----------------------------------------------------------------*/ +void pic16_printIvalStruct (symbol * sym, sym_link * type, + initList * ilist, char ptype, void *p) +{ + symbol *sflds; + initList *iloop = NULL; + + sflds = SPEC_STRUCT (type)->fields; + + if (ilist) { + if (ilist->type != INIT_DEEP) { + werrorfl (sym->fileDef, sym->lineDef, E_INIT_STRUCT, sym->name); + return; + } + + iloop = ilist->init.deep; + } + + for (; sflds; sflds = sflds->next, iloop = (iloop ? iloop->next : NULL)) { +// fprintf(stderr, "%s:%d sflds: %p\tiloop = %p\n", __FILE__, __LINE__, sflds, iloop); + if (IS_BITFIELD(sflds->type)) { + pic16_printIvalBitFields(&sflds, &iloop, ptype, p); + } else { + pic16_printIval (sym, sflds->type, iloop, ptype, p); + } + } + if (iloop) { + werrorfl (sym->fileDef, sym->lineDef, W_EXCESS_INITIALIZERS, "struct", sym->name); + } + return; +} + +/*--------------------------------------------------------------------------*/ +/* pic16_printIvalCharPtr - generates initial values for character pointers */ +/*--------------------------------------------------------------------------*/ +int pic16_printIvalCharPtr (symbol * sym, sym_link * type, value * val, char ptype, void *p) { - if (!ilist || !pb) + int size = 0; + + /* PENDING: this is _very_ mcs51 specific, including a magic + number... + It's also endin specific. + + VR - Attempting to port this function to pic16 port - 8-Jun-2004 + */ + + fprintf(stderr, "%s\n",__FUNCTION__); + + size = getSize (type); + + if (val->name && strlen (val->name)) + { + if (size == 1) /* This appears to be Z80 specific?? */ + { + pic16_emitDS(val->name, ptype, p); + } + else if (size == FPTRSIZE) + { + pic16_printPointerType (val->name, ptype, p); + } + else if (size == GPTRSIZE) + { + int type; + if (IS_PTR (val->type)) { + type = DCL_TYPE (val->type); + } else { + type = PTR_TYPE (SPEC_OCLS (val->etype)); + } + if (val->sym && val->sym->isstrlit) { + // this is a literal string + type=CPOINTER; + } + pic16_printGPointerType(val->name, sym->name, type, ptype, p); + } + else + { + fprintf (stderr, "*** internal error: unknown size in " + "printIvalCharPtr.\n"); + } + } + else + { + // these are literals assigned to pointers + switch (size) + { + case 1: + pic16_emitDS(aopLiteral(val, 0), ptype, p); +// tfprintf (oFile, "\t!dbs\n", aopLiteral (val, 0)); + break; + case 2: + pic16_emitDS(aopLiteral(val, 0), ptype, p); + pic16_emitDS(aopLiteral(val, 1), ptype, p); +// tfprintf (oFile, "\t.byte %s,%s\n", +// aopLiteral (val, 0), aopLiteral (val, 1)); + break; + case 3: + if (IS_GENPTR(type) && floatFromVal(val)!=0) { + // non-zero mcs51 generic pointer + werrorfl (sym->fileDef, sym->lineDef, E_LITERAL_GENERIC); + } + + pic16_emitDS(aopLiteral(val, 0), ptype, p); + pic16_emitDS(aopLiteral(val, 1), ptype, p); + pic16_emitDS(aopLiteral(val, 2), ptype, p); + +// fprintf (oFile, "\t.byte %s,%s,%s\n", +// aopLiteral (val, 0), +// aopLiteral (val, 1), +// aopLiteral (val, 2)); + break; + + +/* no 4 bytes size long for pic16 port */ + case 4: + if (IS_GENPTR(type) && floatFromVal(val)!=0) { + // non-zero ds390 generic pointer + werrorfl (sym->fileDef, sym->lineDef, E_LITERAL_GENERIC); + } + +// fprintf (oFile, "\t.byte %s,%s,%s,%s\n", +// aopLiteral (val, 0), +// aopLiteral (val, 1), +// aopLiteral (val, 2), +// aopLiteral (val, 3)); + break; + default: + assert (0); + } + } + + if (val->sym && val->sym->isstrlit && !isinSet(statsg->syms, val->sym)) { + addSet (&statsg->syms, val->sym); + } + + return 1; +} + +/*-----------------------------------------------------------------------*/ +/* pic16_printIvalFuncPtr - generate initial value for function pointers */ +/*-----------------------------------------------------------------------*/ +void pic16_printIvalFuncPtr (sym_link * type, initList * ilist, char ptype, void *p) +{ + value *val; + int dLvl = 0; + + if (ilist) + val = list2val (ilist); + else + val = valCastLiteral(type, 0.0); + + if (!val) { + // an error has been thrown already + val=constVal("0"); + } + + if (IS_LITERAL(val->etype)) { + if (compareType(type, val->etype) == 0) { + werrorfl (ilist->filename, ilist->lineno, E_INCOMPAT_TYPES); + printFromToType (val->type, type); + } + pic16_printIvalCharPtr (NULL, type, val, ptype, p); return; + } - /* if structure then */ - if (IS_STRUCT (type)) + /* check the types */ + if ((dLvl = compareType (val->type, type->next)) <= 0) { - //fprintf(stderr,"%s struct\n",__FUNCTION__); - //printIvalStruct (sym, type, ilist, oFile); + pic16_emitDB(0x00, ptype, p); return; } - /* if this is a pointer */ - if (IS_PTR (type)) + /* now generate the name */ + if (!val->sym) + { + pic16_printPointerType (val->name, ptype, p); + } + else { - //fprintf(stderr,"%s pointer\n",__FUNCTION__); - //printIvalPtr (sym, type, ilist, oFile); + pic16_printPointerType (val->sym->rname, ptype, p); + } + + return; +} + + +/*-----------------------------------------------------------------*/ +/* pic16_printIvalPtr - generates initial value for pointers */ +/*-----------------------------------------------------------------*/ +void pic16_printIvalPtr (symbol * sym, sym_link * type, initList * ilist, char ptype, void *p) +{ + value *val; + int size; + + /* if deep then */ + if (ilist && (ilist->type == INIT_DEEP)) + ilist = ilist->init.deep; + + /* function pointer */ + if (IS_FUNC (type->next)) + { + pic16_printIvalFuncPtr (type, ilist, ptype, p); + return; + } + + if (!(val = pic16_initPointer (ilist, type))) + return; + + /* if character pointer */ + if (IS_CHAR (type->next)) + if (pic16_printIvalCharPtr (sym, type, val, ptype, p)) + return; + + /* check the type */ + if (compareType (type, val->type) == 0) { + werrorfl (ilist->filename, ilist->lineno, W_INIT_WRONG); + printFromToType (val->type, type); + } + + /* if val is literal */ + if (IS_LITERAL (val->etype)) + { + switch (getSize (type)) + { + case 1: + pic16_emitDB((unsigned int)floatFromVal(val) & 0xff, ptype, p); +// tfprintf (oFile, "\t!db !constbyte\n", (unsigned int) floatFromVal (val) & 0xff); + break; + case 2: + pic16_emitDB(pic16aopLiteral(val, 0), ptype, p); + pic16_emitDB(pic16aopLiteral(val, 1), ptype, p); +// tfprintf (oFile, "\t.byte %s,%s\n", aopLiteral (val, 0), aopLiteral (val, 1)); + break; + case 3: + pic16_emitDB(pic16aopLiteral(val, 0), ptype, p); + pic16_emitDB(pic16aopLiteral(val, 1), ptype, p); + + if (IS_GENPTR (val->type)) + pic16_emitDB(pic16aopLiteral(val, 2), ptype, p); + else if (IS_PTR (val->type)) + pic16_emitDB(pic16_pointerTypeToGPByte(DCL_TYPE(val->type), NULL, NULL), ptype, p); + else + pic16_emitDB(pic16aopLiteral(val, 2), ptype, p); + } + return; + } + + + size = getSize (type); + + if (size == 1) /* Z80 specific?? */ + { + pic16_emitDS(val->name, ptype, p); + } + else if (size == FPTRSIZE) + { + pic16_printPointerType (val->name, ptype, p); + } + else if (size == GPTRSIZE) + { + pic16_printGPointerType (val->name, sym->name, + (IS_PTR (val->type) ? DCL_TYPE (val->type) : + PTR_TYPE (SPEC_OCLS (val->etype))), ptype, p); + } + return; +} + + + +/*-----------------------------------------------------------------*/ +/* pic16_printIval - generates code for initial value */ +/*-----------------------------------------------------------------*/ +void pic16_printIval (symbol * sym, sym_link * type, initList * ilist, char ptype, void *p) +{ + sym_link *itype; + + if (!p) + return; + +// fprintf(stderr, "%s:%d generating init for %s\n", __FILE__, __LINE__, sym->name); + + /* if structure then */ + if (IS_STRUCT (type)) + { + fprintf(stderr,"%s struct\n",__FUNCTION__); + pic16_printIvalStruct (sym, type, ilist, ptype, p); return; } /* if this is an array */ if (IS_ARRAY (type)) { - //fprintf(stderr,"%s array\n",__FUNCTION__); - printIvalArray (sym, type, ilist, pb); +// fprintf(stderr,"%s array\n",__FUNCTION__); + pic16_printIvalArray (sym, type, ilist, ptype, p); + return; + } + +#if 0 + if (ilist) + { + // not an aggregate, ilist must be a node + if (ilist->type!=INIT_NODE) { + // or a 1-element list + if (ilist->init.deep->next) { + werrorfl (sym->fileDef, sym->lineDef, W_EXCESS_INITIALIZERS, "scalar", + sym->name); + } else { + ilist=ilist->init.deep; + } + } + +#if 1 + // and the type must match + itype=ilist->init.node->ftype; + + if (compareType(type, itype)==0) { + // special case for literal strings + if (IS_ARRAY (itype) && IS_CHAR (getSpec(itype)) && + // which are really code pointers + IS_PTR(type) && DCL_TYPE(type)==CPOINTER) { + // no sweat + } else { +// werrorfl (ilist->filename, ilist->lineno, E_TYPE_MISMATCH, "assignment", " "); +// printFromToType(itype, type); + } + } +#endif + } +#endif + + /* if this is a pointer */ + if (IS_PTR (type)) + { + fprintf(stderr,"%s pointer\n",__FUNCTION__); + pic16_printIvalPtr (sym, type, ilist, ptype, p); return; } + /* if type is SPECIFIER */ if (IS_SPEC (type)) { - //fprintf(stderr,"%s spec\n",__FUNCTION__); - printIvalType (sym, type, ilist, pb); +// fprintf(stderr,"%s spec\n",__FUNCTION__); + pic16_printIvalType (sym, type, ilist, ptype, p); return; } } -extern void pic16_pCodeConstString(char *name, char *value); +int PIC16_IS_CONFIG_ADDRESS(int address) +{ + + return (address >= pic16->cwInfo.confAddrStart && address <= pic16->cwInfo.confAddrEnd); +} + /*-----------------------------------------------------------------*/ /* emitStaticSeg - emitcode for the static segment */ /*-----------------------------------------------------------------*/ @@ -431,18 +1153,47 @@ pic16emitStaticSeg (memmap * map) //fprintf(stderr, "%s\n",__FUNCTION__); + pic16_initDB(); + /* for all variables in this segment do */ for (sym = setFirstItem (map->syms); sym; sym = setNextItem (map->syms)) { - /* if it is "extern" then do nothing */ - if (IS_EXTERN (sym->etype)) - continue; - /* if it is not static add it to the public - table */ - if (!IS_STATIC (sym->etype)) - addSetHead (&publics, sym); +#if 0 + fprintf(stderr, "\t%s: sym: %s\tused: %d\tSPEC_ABSA: %d\tSPEC_AGGREGATE: %d\tCODE: %d\n\ +CODESPACE: %d\tCONST: %d\tPTRCONST: %d\tSPEC_CONST: %d\n", + map->sname, sym->name, sym->used, SPEC_ABSA(sym->etype), IS_AGGREGATE(sym->type), + IS_CODE(sym->etype), IN_CODESPACE( SPEC_OCLS(sym->etype)), IS_CONSTANT(sym->etype), + IS_PTR_CONST(sym->etype), SPEC_CONST(sym->etype)); + printTypeChain( sym->type, stderr ); + fprintf(stderr, "\n"); +#endif + + if(SPEC_ABSA(sym->etype) && PIC16_IS_CONFIG_ADDRESS(SPEC_ADDR(sym->etype))) { + + pic16_assignConfigWordValue(SPEC_ADDR(sym->etype), + (int) floatFromVal(list2val(sym->ival))); + + continue; + } + + /* if it is "extern" then do nothing */ + if (IS_EXTERN (sym->etype)) { + + /* do not emit if it is a config word declaration */ + if(!SPEC_ABSA(sym->etype) + || (SPEC_ABSA(sym->etype) && !PIC16_IS_CONFIG_ADDRESS(SPEC_ADDR(sym->etype)))) + checkAddSym(&externs, sym); + continue; + } + + /* if it is not static add it to the public + table */ + if (!IS_STATIC (sym->etype)) { + /* do not emit if it is a config word declaration */ + checkAddSym(&publics, sym); + } #if 0 /* print extra debug info if required */ @@ -472,15 +1223,66 @@ pic16emitStaticSeg (memmap * map) /* if it has an absolute address */ if (SPEC_ABSA (sym->etype)) { + fprintf(stderr, "%s:%d spec_absa is true for symbol: %s\n", + __FILE__, __LINE__, sym->name); + if (options.debug || sym->level == 0) fprintf (code->oFile, " == 0x%04x\n", SPEC_ADDR (sym->etype)); fprintf (code->oFile, "%s\t=\t0x%04x\n", sym->rname, SPEC_ADDR (sym->etype)); - } - else - { + + /* if it has an initial value */ + if (sym->ival) + { + pBlock *pb; + symbol *asym; + absSym *abSym; + pCode *pcf; + + noAlloc++; + resolveIvalSym (sym->ival, sym->type); + asym = newSymbol(sym->rname, 0); + abSym = Safe_calloc(1, sizeof(absSym)); + abSym->name = Safe_strdup( sym->rname ); + abSym->address = SPEC_ADDR( sym->etype ); + addSet(&absSymSet, abSym); + + pb = pic16_newpCodeChain(NULL, 'A',pic16_newpCodeCharP("; Starting pCode block for absolute Ival")); + pic16_addpBlock(pb); + + pcf = pic16_newpCodeFunction(moduleName, asym->name); + PCF(pcf)->absblock = 1; + + pic16_addpCode2pBlock(pb,pcf); + pic16_addpCode2pBlock(pb,pic16_newpCodeLabel(sym->rname,-1)); + pic16_printIval(sym, sym->type, sym->ival, 'p', (void *)pb); + pic16_flushDB('p', (void *)pb); + + pic16_addpCode2pBlock(pb, pic16_newpCodeFunction(NULL, NULL)); + noAlloc--; + } + else + { + + /* allocate space */ + fprintf (code->oFile, "%s:\n", sym->rname); + /* special case for character strings */ + if (IS_ARRAY (sym->type) && IS_CHAR (sym->type->next) && + SPEC_CVAL (sym->etype).v_char) + pic16_pCodeConstString(sym->rname , SPEC_CVAL (sym->etype).v_char); + /*printChar (code->oFile, + SPEC_CVAL (sym->etype).v_char, + strlen (SPEC_CVAL (sym->etype).v_char) + 1);*/ + else + fprintf (code->oFile, "\t.ds\t0x%04x\n", (unsigned int) getSize (sym->type) & 0xffff); + } + + } else { +// fprintf(stderr, "%s:%d spec_absa is false for symbol: %s\n", +// __FILE__, __LINE__, sym->name); + if (options.debug || sym->level == 0) fprintf (code->oFile, " == .\n"); @@ -491,13 +1293,14 @@ pic16emitStaticSeg (memmap * map) fprintf (code->oFile, "%s:\n", sym->rname); noAlloc++; - resolveIvalSym (sym->ival); - //printIval (sym, sym->type, sym->ival, code->oFile); + resolveIvalSym (sym->ival, sym->type); + pb = pic16_newpCodeChain(NULL, 'P',pic16_newpCodeCharP("; Starting pCode block for Ival")); pic16_addpBlock(pb); pic16_addpCode2pBlock(pb,pic16_newpCodeLabel(sym->rname,-1)); - printIval (sym, sym->type, sym->ival, pb); + pic16_printIval(sym, sym->type, sym->ival, 'p', (void *)pb); + pic16_flushDB('p', (void *)pb); noAlloc--; } else @@ -522,8 +1325,20 @@ pic16emitStaticSeg (memmap * map) /*-----------------------------------------------------------------*/ -/* emitMaps - emits the code for the data portion the code */ +/* pic16_emitConfigRegs - emits the configuration registers */ /*-----------------------------------------------------------------*/ +void pic16_emitConfigRegs(FILE *of) +{ + int i; + + for(i=0;icwInfo.confAddrEnd-pic16->cwInfo.confAddrStart;i++) + if(pic16->cwInfo.crInfo[i].emit) //mask != -1) + fprintf (of, "\t__config 0x%x, 0x%hhx\n", + pic16->cwInfo.confAddrStart+i, + pic16->cwInfo.crInfo[i].value); +} + + static void pic16emitMaps () { @@ -545,89 +1360,77 @@ pic16emitMaps () static void pic16createInterruptVect (FILE * vFile) { - unsigned i = 0; - mainf = newSymbol ("main", 0); - mainf->block = 0; - - /* only if the main function exists */ - if (!(mainf = findSymWithLevel (SymbolTab, mainf))) - { - if (!options.cc_only) - werror (E_NO_MAIN); - return; - } - - /* if the main is only a prototype ie. no body then do nothing */ - if (!IFFUNC_HASBODY(mainf->type)) - { - /* if ! compile only then main function should be present */ - if (!options.cc_only) - werror (E_NO_MAIN); - return; - } - -/* - * update started by Vangelis Rokas on 19-Jun-2003 - * all fprintf() calls are prefixed with ';' so they seem - * as comments to the assembler. I (VR) removed them */ - -// fprintf (vFile, "\t.area\t%s\n", CODE_NAME); - fprintf(vFile, "\tcode\t0x0000\n"); - fprintf (vFile, "__interrupt_vect:\n"); - - - if (!port->genIVT || !(port->genIVT (vFile, interrupts, maxInterrupts))) - { - /* "generic" interrupt table header (if port doesn't specify one). - - * Look suspiciously like 8051 code to me... - */ - - fprintf (vFile, ";\tljmp\t__sdcc_gsinit_startup\n"); + /* if the main is only a prototype ie. no body then do nothing */ +#if 0 + if (!IFFUNC_HASBODY(mainf->type)) { + /* if ! compile only then main function should be present */ + if (!options.cc_only) + werror (E_NO_MAIN); + return; + } +#endif + if((!pic16_options.omit_ivt) || (pic16_options.omit_ivt && pic16_options.leave_reset)) { + fprintf (vFile, ";\t.area\t%s\n", CODE_NAME); + fprintf(vFile, ".intvecs\tcode\t0x0000\n"); + fprintf (vFile, "__interrupt_vect:\n"); - /* now for the other interrupts */ - for (; i < maxInterrupts; i++) - { - if (interrupts[i]) - fprintf (vFile, ";\tljmp\t%s\n;\t.ds\t5\n", interrupts[i]->rname); - else - fprintf (vFile, ";\treti\n;\t.ds\t7\n"); + /* this is an overkill since WE are the port, + * and we know if we have a genIVT function! */ + if(port->genIVT) { + port->genIVT(vFile, interrupts, maxInterrupts); + } } - } + } /*-----------------------------------------------------------------*/ -/* initialComments - puts in some initial comments */ +/* pic16initialComments - puts in some initial comments */ /*-----------------------------------------------------------------*/ static void pic16initialComments (FILE * afile) { initialComments (afile); - fprintf (afile, "; PIC port for the 16-bit core\n"); + fprintf (afile, "; PIC16 port for the Microchip 16-bit core micros\n"); fprintf (afile, iComments2); } /*-----------------------------------------------------------------*/ -/* printPublics - generates .global for publics */ +/* printPublics - generates global declarations for publics */ /*-----------------------------------------------------------------*/ static void -pic16printPublics (FILE * afile) +pic16printPublics (FILE *afile) { symbol *sym; - fprintf (afile, "%s", iComments2); - fprintf (afile, "; publics variables in this module\n"); - fprintf (afile, "%s", iComments2); + fprintf (afile, "%s", iComments2); + fprintf (afile, "; public variables in this module\n"); + fprintf (afile, "%s", iComments2); - for (sym = setFirstItem (publics); sym; - sym = setNextItem (publics)) - fprintf (afile, ";\t.globl %s\n", sym->rname); + for(sym = setFirstItem (publics); sym; sym = setNextItem (publics)) + fprintf(afile, "\tglobal %s\n", sym->rname); } +/*-----------------------------------------------------------------*/ +/* printExterns - generates extern declarations for externs */ +/*-----------------------------------------------------------------*/ +static void +pic16_printExterns(FILE *afile) +{ + symbol *sym; + + fprintf(afile, "%s", iComments2); + fprintf(afile, "; extern variables in this module\n"); + fprintf(afile, "%s", iComments2); + + for(sym = setFirstItem(externs); sym; sym = setNextItem(externs)) + fprintf(afile, "\textern %s\n", sym->rname); + for(sym = setFirstItem(pic16_builtin_functions); sym; sym = setNextItem(pic16_builtin_functions)) + fprintf(afile, "\textern _%s\n", sym->name); +} /*-----------------------------------------------------------------*/ /* emitOverlay - will emit code for the overlay stuff */ @@ -677,8 +1480,10 @@ pic16emitOverlay (FILE * afile) /* if global variable & not static or extern and addPublics allowed then add it to the public set */ if ((sym->_isparm && !IS_REGPARM (sym->etype)) - && !IS_STATIC (sym->etype)) - addSetHead (&publics, sym); + && !IS_STATIC (sym->etype)) { + checkAddSym(&publics, sym); +// addSetHead (&publics, sym); + } /* if extern then do nothing or is a function then do nothing */ @@ -745,247 +1550,273 @@ pic16glue () FILE *asmFile; FILE *ovrFile = tempfile(); - addSetHead(&tmpfileSet,ovrFile); - pic16_pCodeInitRegisters(); - if (mainf && IFFUNC_HASBODY(mainf->type)) { + mainf = newSymbol ("main", 0); + mainf->block = 0; - pBlock *pb = pic16_newpCodeChain(NULL,'X',pic16_newpCodeCharP("; Starting pCode block")); - pic16_addpBlock(pb); + mainf = findSymWithLevel(SymbolTab, mainf); +#if 0 + /* only if the main function exists */ + if (!(mainf = findSymWithLevel (SymbolTab, mainf))) { + if (!options.cc_only) + werror (E_NO_MAIN); + return; + } +#endif - /* entry point @ start of CSEG */ - pic16_addpCode2pBlock(pb,pic16_newpCodeLabel("__sdcc_program_startup",-1)); - /* put in the call to main */ - pic16_addpCode2pBlock(pb,pic16_newpCode(POC_CALL,pic16_newpCodeOp("_main",PO_STR))); +// fprintf(stderr, "main function= %p (%s)\thas body= %d\n", mainf, (mainf?mainf->name:NULL), mainf?IFFUNC_HASBODY(mainf->type):-1); - if (options.mainreturn) { + addSetHead(&tmpfileSet,ovrFile); + pic16_pCodeInitRegisters(); - pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(";\treturn from main will return to caller\n")); - pic16_addpCode2pBlock(pb,pic16_newpCode(POC_RETURN,NULL)); + if (mainf && IFFUNC_HASBODY(mainf->type)) { + pBlock *pb = pic16_newpCodeChain(NULL,'X',pic16_newpCodeCharP("; Starting pCode block")); - } else { + pic16_addpBlock(pb); - pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(";\treturn from main will lock up\n")); - pic16_addpCode2pBlock(pb,pic16_newpCode(POC_GOTO,pic16_newpCodeOp("$",PO_STR))); + /* entry point @ start of CSEG */ + pic16_addpCode2pBlock(pb,pic16_newpCodeLabel("__sdcc_program_startup",-1)); - } - } + if(initsfpnt) { + pic16_addpCode2pBlock(pb, pic16_newpCode(POC_LFSR, + pic16_popGetLit2(1, pic16_newpCodeOpRegFromStr("stack")))); + pic16_addpCode2pBlock(pb, pic16_newpCode(POC_LFSR, + pic16_popGetLit2(2, pic16_newpCodeOpRegFromStr("stack")))); + } + /* put in the call to main */ + pic16_addpCode2pBlock(pb,pic16_newpCode(POC_CALL,pic16_newpCodeOp("_main",PO_STR))); - /* At this point we've got all the code in the form of pCode structures */ - /* Now it needs to be rearranged into the order it should be placed in the */ - /* code space */ + if (options.mainreturn) { + pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(";\treturn from main will return to caller\n")); + pic16_addpCode2pBlock(pb,pic16_newpCode(POC_RETURN,NULL)); + } else { + pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(";\treturn from main will lock up\n")); + pic16_addpCode2pBlock(pb,pic16_newpCode(POC_GOTO,pic16_newpCodeOp("$",PO_STR))); + } + } - pic16_movepBlock2Head('P'); // Last - pic16_movepBlock2Head(code->dbName); - pic16_movepBlock2Head('X'); - pic16_movepBlock2Head(statsg->dbName); // First + /* At this point we've got all the code in the form of pCode structures */ + /* Now it needs to be rearranged into the order it should be placed in the */ + /* code space */ + pic16_movepBlock2Head('P'); // Last + pic16_movepBlock2Head(code->dbName); + pic16_movepBlock2Head('X'); + pic16_movepBlock2Head(statsg->dbName); // First - /* print the global struct definitions */ - if (options.debug) - cdbStructBlock (0); //,cdbFile); + /* print the global struct definitions */ +// if (options.debug) +// cdbStructBlock (0); //,cdbFile); - vFile = tempfile(); - /* PENDING: this isnt the best place but it will do */ - if (port->general.glue_up_main) { - /* create the interrupt vector table */ - pic16createInterruptVect (vFile); - } + vFile = tempfile(); + /* PENDING: this isnt the best place but it will do */ + if (port->general.glue_up_main) { + /* create the interrupt vector table */ + pic16createInterruptVect (vFile); + } - addSetHead(&tmpfileSet,vFile); + addSetHead(&tmpfileSet,vFile); - /* emit code for the all the variables declared */ - pic16emitMaps (); - /* do the overlay segments */ - pic16emitOverlay(ovrFile); - - + /* emit code for the all the variables declared */ + pic16emitMaps (); + /* do the overlay segments */ + pic16emitOverlay(ovrFile); pic16_AnalyzepCode('*'); - //#ifdef PCODE_DEBUG - //pic16_printCallTree(stderr); - //#endif - - pic16_InlinepCode(); +#if 0 + { + FILE *cFile; + sprintf(buffer, dstFileName); + strcat(buffer, ".calltree"); + cFile = fopen(buffer, "w"); + pic16_printCallTree( cFile ); + fclose(cFile); + } +#endif + pic16_InlinepCode(); pic16_AnalyzepCode('*'); - pic16_pcode_test(); - + if(pic16_debug_verbose) + pic16_pcode_test(); - /* now put it all together into the assembler file */ - /* create the assembler file name */ - - if ((noAssemble || options.c1mode) && fullDstFileName) - { - sprintf (buffer, fullDstFileName); - } - else - { - sprintf (buffer, dstFileName); - strcat (buffer, ".asm"); - } + /* now put it all together into the assembler file */ + /* create the assembler file name */ + if ((noAssemble || options.c1mode) && fullDstFileName) { + sprintf (buffer, fullDstFileName); + } else { + sprintf (buffer, dstFileName); + strcat (buffer, ".asm"); + } - if (!(asmFile = fopen (buffer, "w"))) { - werror (E_FILE_OPEN_ERR, buffer); - exit (1); - } - - /* initial comments */ - pic16initialComments (asmFile); + if (!(asmFile = fopen (buffer, "w"))) { + werror (E_FILE_OPEN_ERR, buffer); + exit (1); + } - /* print module name */ - fprintf (asmFile, ";\t.module %s\n", moduleName); + /* initial comments */ + pic16initialComments (asmFile); - /* Let the port generate any global directives, etc. */ - if (port->genAssemblerPreamble) - { - port->genAssemblerPreamble(asmFile); - } + /* print module name */ + fprintf(asmFile, "#FILE\t\"%s\"\n", fullSrcFileName); - /* print the global variables in this module */ - pic16printPublics (asmFile); + /* Let the port generate any global directives, etc. */ + if (port->genAssemblerPreamble) { + port->genAssemblerPreamble(asmFile); + } + /* print the extern variables to this module */ + pic16_printExterns(asmFile); + + /* print the global variables in this module */ + pic16printPublics (asmFile); - /* copy the sfr segment */ - fprintf (asmFile, "%s", iComments2); - fprintf (asmFile, "; special function registers\n"); - fprintf (asmFile, "%s", iComments2); - copyFile (asmFile, sfr->oFile); +#if 0 + /* copy the sfr segment */ + fprintf (asmFile, "%s", iComments2); + fprintf (asmFile, "; special function registers\n"); + fprintf (asmFile, "%s", iComments2); + copyFile (asmFile, sfr->oFile); +#endif - /* Put all variables into a cblock */ - pic16_AnalyzeBanking(); - pic16_writeUsedRegs(asmFile); - - /* create the overlay segments */ - fprintf (asmFile, "%s", iComments2); - fprintf (asmFile, "; overlayable items in internal ram \n"); - fprintf (asmFile, "%s", iComments2); - copyFile (asmFile, ovrFile); - - /* create the stack segment MOF */ - if (mainf && IFFUNC_HASBODY(mainf->type)) { - fprintf (asmFile, "%s", iComments2); - fprintf (asmFile, "; Stack segment in internal ram \n"); - fprintf (asmFile, "%s", iComments2); - fprintf (asmFile, ";\t.area\tSSEG\t(DATA)\n" - ";__start__stack:\n;\t.ds\t1\n\n"); - } + /* Put all variables into a cblock */ + pic16_AnalyzeBanking(); + pic16_writeUsedRegs(asmFile); - /* create the idata segment */ - fprintf (asmFile, "%s", iComments2); - fprintf (asmFile, "; indirectly addressable internal ram data\n"); - fprintf (asmFile, "%s", iComments2); - copyFile (asmFile, idata->oFile); - - /* if external stack then reserve space of it */ - if (mainf && IFFUNC_HASBODY(mainf->type) && options.useXstack ) { - fprintf (asmFile, "%s", iComments2); - fprintf (asmFile, "; external stack \n"); - fprintf (asmFile, "%s", iComments2); - fprintf (asmFile,";\t.area XSEG (XDATA)\n"); /* MOF */ - fprintf (asmFile,";\t.ds 256\n"); - } - - - /* copy xtern ram data */ - fprintf (asmFile, "%s", iComments2); - fprintf (asmFile, "; external ram data\n"); - fprintf (asmFile, "%s", iComments2); - copyFile (asmFile, xdata->oFile); - +#if 0 + /* create the overlay segments */ + fprintf (asmFile, "%s", iComments2); + fprintf (asmFile, "; overlayable items in internal ram \n"); + fprintf (asmFile, "%s", iComments2); + copyFile (asmFile, ovrFile); +#endif + +#if 0 - /* copy the bit segment */ - fprintf (asmFile, "%s", iComments2); - fprintf (asmFile, "; bit data\n"); - fprintf (asmFile, "%s", iComments2); - copyFile (asmFile, bit->oFile); + /* create the stack segment MOF */ + if (mainf && IFFUNC_HASBODY(mainf->type)) { + fprintf (asmFile, "%s", iComments2); + fprintf (asmFile, "; Stack segment in internal ram \n"); + fprintf (asmFile, "%s", iComments2); + fprintf (asmFile, ";\t.area\tSSEG\t(DATA)\n" + ";__start__stack:\n;\t.ds\t1\n\n"); + } +#endif +#if 0 + /* no indirect data in pic */ + /* create the idata segment */ + fprintf (asmFile, "%s", iComments2); + fprintf (asmFile, "; indirectly addressable internal ram data\n"); + fprintf (asmFile, "%s", iComments2); + copyFile (asmFile, idata->oFile); +#endif -/* the following is commented out. the CODE directive will be - used instead before code */ - -// fprintf (asmFile, "\tORG 0\n"); - /* copy the interrupt vector table */ - if (mainf && IFFUNC_HASBODY(mainf->type)) { - fprintf (asmFile, "%s", iComments2); - fprintf (asmFile, "; interrupt vector \n"); - fprintf (asmFile, "%s", iComments2); - copyFile (asmFile, vFile); - } - - /* copy global & static initialisations */ - fprintf (asmFile, "%s", iComments2); - fprintf (asmFile, "; global & static initialisations\n"); - fprintf (asmFile, "%s", iComments2); - - /* Everywhere we generate a reference to the static_name area, - * (which is currently only here), we immediately follow it with a - * definition of the post_static_name area. This guarantees that - * the post_static_name area will immediately follow the static_name - * area. - */ - fprintf (asmFile, ";\t.area %s\n", port->mem.static_name); /* MOF */ - fprintf (asmFile, ";\t.area %s\n", port->mem.post_static_name); - fprintf (asmFile, ";\t.area %s\n", port->mem.static_name); +#if 0 + /* no xdata in pic */ + /* if external stack then reserve space of it */ + if (mainf && IFFUNC_HASBODY(mainf->type) && options.useXstack ) { + fprintf (asmFile, "%s", iComments2); + fprintf (asmFile, "; external stack \n"); + fprintf (asmFile, "%s", iComments2); + fprintf (asmFile,";\t.area XSEG (XDATA)\n"); /* MOF */ + fprintf (asmFile,";\t.ds 256\n"); + } +#endif - if (mainf && IFFUNC_HASBODY(mainf->type)) { - fprintf (asmFile,"__sdcc_gsinit_startup:\n"); +#if 0 + /* no xdata in pic */ + /* copy xtern ram data */ + fprintf (asmFile, "%s", iComments2); + fprintf (asmFile, "; external ram data\n"); + fprintf (asmFile, "%s", iComments2); + copyFile (asmFile, xdata->oFile); +#endif #if 0 - /* 8051 legacy (?!) - VR 20-Jun-2003 */ - /* if external stack is specified then the - higher order byte of the xdatalocation is - going into P2 and the lower order going into - spx */ - if (options.useXstack) { - fprintf(asmFile,";\tmov\tP2,#0x%02x\n", - (((unsigned int)options.xdata_loc) >> 8) & 0xff); - fprintf(asmFile,";\tmov\t_spx,#0x%02x\n", - (unsigned int)options.xdata_loc & 0xff); - } + /* copy the bit segment */ + fprintf (asmFile, "%s", iComments2); + fprintf (asmFile, "; bit data\n"); + fprintf (asmFile, "%s", iComments2); + copyFile (asmFile, bit->oFile); #endif - } + /* copy the interrupt vector table */ + if(mainf && IFFUNC_HASBODY(mainf->type)) { + fprintf (asmFile, "%s", iComments2); + fprintf (asmFile, "; interrupt vector \n"); + fprintf (asmFile, "%s", iComments2); + copyFile (asmFile, vFile); + } + + /* copy global & static initialisations */ + fprintf (asmFile, "%s", iComments2); + fprintf (asmFile, "; global & static initialisations\n"); + fprintf (asmFile, "%s", iComments2); + +#if 0 + /* copy over code */ + fprintf (asmFile, "%s", iComments2); + fprintf (asmFile, "\tcode\n"); + fprintf (asmFile, "%s", iComments2); +#endif - if (port->general.glue_up_main && mainf && IFFUNC_HASBODY(mainf->type)) - { - /* This code is generated in the post-static area. - * This area is guaranteed to follow the static area - * by the ugly shucking and jiving about 20 lines ago. - */ - fprintf(asmFile, ";\t.area %s\n", port->mem.post_static_name); - fprintf (asmFile,"\tgoto\t__sdcc_program_startup\n"); - } + if(pic16_debug_verbose) + fprintf(asmFile, "; A code from now on!\n"); + pic16_copypCode(asmFile, 'A'); + + + if(mainf && IFFUNC_HASBODY(mainf->type)) { + fprintf(asmFile, "\tcode\n"); + fprintf(asmFile,"__sdcc_gsinit_startup:\n"); + +#if 0 + /* FIXME 8051 legacy (?!) - VR 20-Jun-2003 */ + /* if external stack is specified then the + * higher order byte of the xdatalocation is + * going into P2 and the lower order going into */ - /* copy over code */ - fprintf (asmFile, "%s", iComments2); - fprintf (asmFile, "; code\n"); - fprintf (asmFile, "%s", iComments2); - fprintf (asmFile, ";\t.area %s\n", port->mem.code_name); + if (options.useXstack) { + fprintf(asmFile,";\tmov\tP2,#0x%02x\n", + (((unsigned int)options.xdata_loc) >> 8) & 0xff); + fprintf(asmFile,";\tmov\t_spx,#0x%02x\n", + (unsigned int)options.xdata_loc & 0xff); + } +#endif + } - //copyFile (stderr, code->oFile); +// copyFile (stderr, code->oFile); -// fprintf(asmFile, "; I code from now on!\n"); + fprintf(asmFile, "; I code from now on!\n"); pic16_copypCode(asmFile, 'I'); - -// fprintf(asmFile, "; dbName from now on!\n"); - fprintf(asmFile, "__sdcc_program_startup:\n"); + if(pic16_debug_verbose) + fprintf(asmFile, "; dbName from now on!\n"); pic16_copypCode(asmFile, statsg->dbName); + + if (port->general.glue_up_main && mainf && IFFUNC_HASBODY(mainf->type)) { + fprintf (asmFile,"\tgoto\t__sdcc_program_startup\n"); + } + + + if(pic16_debug_verbose) fprintf(asmFile, "; X code from now on!\n"); pic16_copypCode(asmFile, 'X'); + + if(pic16_debug_verbose) fprintf(asmFile, "; M code from now on!\n"); pic16_copypCode(asmFile, 'M'); + + pic16_copypCode(asmFile, code->dbName); + pic16_copypCode(asmFile, 'P'); fprintf (asmFile,"\tend\n"); - fclose (asmFile); rm_tmpfiles();