/*-------------------------------------------------------------------------
- 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
#include "ralloc.h"
#include "pcode.h"
#include "newalloc.h"
+#include "gen.h"
+#include "device.h"
+#include "main.h"
+#include "dbuf_string.h"
+#include <string.h>
-#ifdef WORDS_BIGENDIAN
- #define _ENDIAN(x) (3-x)
-#else
- #define _ENDIAN(x) (x)
-#endif
-
-#define BYTE_IN_LONG(x,b) ((x>>(8*_ENDIAN(b)))&0xff)
-
extern symbol *interrupts[256];
-static void printIval (symbol * sym, sym_link * type, initList * ilist, pBlock *pb);
+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;
extern char *VersionString;
-extern FILE *codeOutFile;
-extern set *tmpfileSet;
-extern set *tmpfileNameSet;
+extern struct dbuf_s *codeOutBuf;
extern char *iComments1;
extern char *iComments2;
-//extern void emitStaticSeg (memmap * map);
-extern DEFSETFUNC (closeTmpFiles);
-extern DEFSETFUNC (rmTmpFiles);
+extern int initsfpnt;
+extern unsigned long pFile_isize;
+
+extern unsigned long pic16_countInstructions();
+set *pic16_localFunctions = NULL;
+set *rel_idataSymSet = NULL;
+set *fix_idataSymSet = NULL;
extern void pic16_AnalyzeBanking (void);
-extern void copyFile (FILE * dest, FILE * src);
-extern void pic16_InlinepCode(void);
-extern void pic16_writeUsedRegs(FILE *);
+extern void pic16_OptimizeJumps (void);
+extern void pic16_OptimizeBanksel (void);
+extern void pic16_InlinepCode (void);
+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);
+void pic16_pCodeInitRegisters (void);
+pCodeOp *pic16_popCopyReg (pCodeOpReg *pc);
+extern void pic16_pCodeConstString (char *name, char *value, unsigned length);
+
/*-----------------------------------------------------------------*/
/* aopLiteral - string from a literal value */
/*-----------------------------------------------------------------*/
-int pic16aopLiteral (value *val, int offset)
+unsigned int pic16aopLiteral (value *val, int offset)
{
union {
float f;
/* if it is a float then it gets tricky */
/* otherwise it is fairly simple */
- if (!IS_FLOAT(val->type)) {
- unsigned long v = (unsigned long) floatFromVal(val);
+ if (!(IS_FLOAT(val->type) || IS_FIXED(val->type))) {
+ unsigned long v = ulFromVal (val);
+
+ return ( (v >> (offset * 8)) & 0xff);
+ }
+
+ if(IS_FIXED16X16(val->type)) {
+ unsigned long v = (unsigned long)fixed16x16FromDouble( floatFromVal( val ) );
return ( (v >> (offset * 8)) & 0xff);
}
}
+iCode *tic;
+symbol *nsym;
+char tbuffer[512], *tbuf=tbuffer;;
+
/*-----------------------------------------------------------------*/
/* emitRegularMap - emit code for maps with no special cases */
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);
- /* print the area name */
- for (sym = setFirstItem (map->syms); sym;
- sym = setNextItem (map->syms))
- {
+ if(addPublics)
+ dbuf_printf (&map->oBuf, ";\t.area\t%s\n", map->sname);
+ /* print the area name */
+
+ 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, "%s\t%s: sym: %s\tused: %d\textern: %d\tstatic: %d\taggregate: %d\tregister: 0x%x\tfunction: %d\n",
+ __FUNCTION__,
+ map->sname, sym->name, sym->used, IS_EXTERN(sym->etype), IS_STATIC(sym->etype),
+ IS_AGGREGATE(sym->type), (SPEC_SCLS(sym->etype) == S_REGISTER), IS_FUNC(sym->type));
+ printTypeChain( sym->type, stderr );
+ fprintf(stderr, "\n");
+#endif
+
+ /* if extern then add to externs */
+ if (IS_EXTERN (sym->etype)) {
+ /* reduce overhead while linking by not declaring
+ * extern unused external functions (usually declared
+ * in header files) */
+ if(IS_FUNC(sym->type) && !sym->used)continue;
+
+ /* make sure symbol is not in publics section */
+ if(!checkSym(publics, sym))
+ 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
+ /* new version */
+ if(IS_STATIC(sym->etype)
+ && !sym->ival) /* && !sym->level*/ {
+ regs *reg;
+ sectSym *ssym;
+ int found=0;
+
+// debugf("adding symbol %s\n", sym->name);
+#define SET_IMPLICIT 1
+
+#if SET_IMPLICIT
+ if(IS_STRUCT(sym->type))
+ sym->implicit = 1;
+#endif
+
+ reg = pic16_allocDirReg( operandFromSymbol( sym ));
+
+ if(reg) {
+ for(ssym=setFirstItem(sectSyms); ssym; ssym=setNextItem(sectSyms)) {
+ if(!strcmp(ssym->name, reg->name))found=1;
+ }
- cdbSymbol (sym, cdbFile, FALSE, FALSE);
+ if(!found)
+ checkAddReg(&pic16_rel_udata, reg);
+#if 0
+ else
+ debugf("Did find %s in pic16_rel_udata already. Check!\n", reg->name);
+// checkAddSym(&publics, sym);
+#endif
- 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 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;
+ }
+
+ /* if is has an absolute address then generate
+ an equate for this no need to allocate space */
+ if (SPEC_ABSA (sym->etype)) {
+// fprintf (stderr,"; %s == 0x%04x\t\treqv= %p nRegs= %d\n",
+// sym->name, SPEC_ADDR (sym->etype), sym->reqv, sym->regType);
+
+ dbuf_printf (&map->oBuf, "%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 is has an absolute address then generate
- an equate for this no need to allocate space */
- if (SPEC_ABSA (sym->etype))
- {
- //if (options.debug || sym->level == 0)
- //fprintf (map->oFile,"; == 0x%04x\n",SPEC_ADDR (sym->etype));
-
- fprintf (map->oFile, "%s\tEQU\t0x%04x\n",
- sym->rname,
- SPEC_ADDR (sym->etype));
- }
+ {
+ sectSym *ssym;
+ int found=0;
+
+#if 0
+ fprintf(stderr, "%s:%d sym->rname: %s reg: %p reg->name: %s\n", __FILE__, __LINE__,
+ sym->rname, reg, (reg?reg->name:"<<NULL>>"));
+#endif
+
+ if(reg) {
+ for(ssym=setFirstItem(sectSyms); ssym; ssym=setNextItem(sectSyms)) {
+ if(!strcmp(ssym->name, reg->name))found=1;
+ }
+
+ if(!found)
+ 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 {
+ dbuf_printf (map->oBuf, "\t%s\n", sym->rname);
+ if ((size = (unsigned int) getSize (sym->type) & 0xffff) > 1) {
+ for (i = 1; i < size; i++)
+ dbuf_printf (map->oBuf, "\t%s_%d\n", sym->rname, i);
+ }
+ }
+ dbuf_printf (map->oBuf, "\t.ds\t0x%04x\n", (unsigned int)getSize (sym->type) & 0xffff);
+#endif
+ }
+
+ /* 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)
+ || IS_STATIC(sym->etype)) ) {
+ 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_TYPE_NONE));
+ }
+
+ if(ival) {
+ setAstFileLine (ival, sym->fileDef, sym->lineDef);
+ codeOutBuf = &statsg->oBuf;
+ GcurMemmap = statsg;
+ eBBlockFromiCode (iCodeFromAst (ival));
+ sym->ival = NULL;
+ }
+ }
+ }
+}
+
+
+/*-----------------------------------------------------------------*/
+/* pic16_initPointer - pointer initialization code massaging */
+/*-----------------------------------------------------------------*/
+static value *
+pic16_initPointer (initList * ilist, sym_link *toType)
+{
+ value *val;
+ ast *expr;
+
+ if (!ilist) {
+ return valCastLiteral(toType, 0.0);
+ }
+
+ expr = decorateType(resolveSymbols( list2expr (ilist) ), FALSE);
+// expr = list2expr( ilist );
+
+ if (!expr)
+ goto wrong;
+
+ /* try it the old way first */
+ if (expr->etype && (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) && expr->left->etype) {
+ val = 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
- {
- /* 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);
- }
-
- /* 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;
- }
- }
-}
-
-
-/*-----------------------------------------------------------------*/
-/* printIvalType - generates ival for int/char */
-/*-----------------------------------------------------------------*/
-static void
-printIvalType (symbol *sym, sym_link * type, initList * ilist, pBlock *pb)
+ 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;
+
+}
+
+
+/*-----------------------------------------------------------------*/
+/* printPointerType - generates ival for pointer type */
+/*-----------------------------------------------------------------*/
+static 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 */
+/*-----------------------------------------------------------------*/
+static void
+pic16_printPointerType (const char *name, char ptype, void *p)
+{
+ _pic16_printPointerType (name, ptype, p);
+ //pic16_flushDB(ptype, p); /* breaks char* const arr[] = {&c, &c, &c}; */
+}
+
+/*-----------------------------------------------------------------*/
+/* printGPointerType - generates ival for generic pointer type */
+/*-----------------------------------------------------------------*/
+static void
+pic16_printGPointerType (const char *iname, const unsigned int itype,
+ char ptype, void *p)
+{
+ char buf[256];
+
+ _pic16_printPointerType (iname, ptype, p);
+
+ switch (itype)
+ {
+ case CPOINTER: /* fall through */
+ case FUNCTION: /* fall through */
+ case GPOINTER:
+ /* GPTRs pointing to __data space should be reported as POINTERs */
+ sprintf (buf, "UPPER(%s)", iname);
+ pic16_emitDS (buf, ptype, p);
+ break;
+
+ case POINTER: /* fall through */
+ case FPOINTER: /* fall through */
+ case IPOINTER: /* fall through */
+ case PPOINTER: /* __data space */
+ sprintf (buf, "0x%02x", GPTR_TAG_DATA);
+ pic16_emitDS (buf, ptype, p);
+ break;
+
+ default:
+ debugf ("itype = %d\n", itype );
+ assert (0);
+ }
+
+ if (itype == GPOINTER) {
+ fprintf(stderr, "%s: initialized generic pointer with unknown storage class assumes object in code space\n", __func__);
+ }
+
+ //pic16_flushDB(ptype, p); /* might break char* const arr[] = {...}; */
+}
+
+
+/* set to 0 to disable debug messages */
+#define DEBUG_PRINTIVAL 0
+
+/*-----------------------------------------------------------------*/
+/* pic16_printIvalType - generates ival for int/char */
+/*-----------------------------------------------------------------*/
+static void
+pic16_printIvalType (symbol *sym, sym_link * type, initList * ilist, char ptype, void *p)
{
value *val;
- unsigned long ulval;
+ int i;
+
+// fprintf(stderr, "%s for symbol %s\n",__FUNCTION__, sym->rname);
+
+#if DEBUG_PRINTIVAL
+ fprintf(stderr, "%s\n",__FUNCTION__);
+#endif
- //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) {
if (!(val = list2val (ilist))) {
// assuming a warning has been thrown
- val=constVal("0");
+ val = constCharVal (0);
}
if (val->type != type) {
val = valCastLiteral(type, floatFromVal(val));
}
- if(val)
- ulval = (unsigned long) floatFromVal (val);
- else
- ulval =0;
-
- switch (getSize (type)) {
- case 1:
- pic16_addpCode2pBlock(pb,pic16_newpCode(POC_RETLW,pic16_newpCodeOpLit(BYTE_IN_LONG(ulval,0))));
- 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))));
- 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))));
- break;
- }
+ for (i = 0; i < getSize (type); i++) {
+ pic16_emitDB(pic16aopLiteral(val, i), ptype, p);
+ } // for
}
-/*-----------------------------------------------------------------*/
-/* printIvalChar - generates initital value for character array */
-/*-----------------------------------------------------------------*/
-static int
-printIvalChar (sym_link * type, initList * ilist, pBlock *pb, char *s)
+/*--------------------------------------------------------------------*/
+/* pic16_printIvalChar - generates initital value for character array */
+/*--------------------------------------------------------------------*/
+static int
+pic16_printIvalChar (symbol *sym, sym_link * type, initList * ilist, char *s, char ptype, void *p)
{
value *val;
- int remain;
+ int remain, len, ilen;
- if(!pb)
+ if(!p)
return 0;
+#if DEBUG_PRINTIVAL
fprintf(stderr, "%s\n",__FUNCTION__);
- if (!s)
- {
+#endif
- val = list2val (ilist);
- /* if the value is a character string */
- if (IS_ARRAY (val->type) && IS_CHAR (val->etype))
- {
- 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)));
- return 1;
- }
- else
- return 0;
- }
- else {
- //printChar (oFile, s, strlen (s) + 1);
+ if(!s) {
+ val = list2val (ilist);
+ /* if the value is a character string */
+ if(IS_ARRAY (val->type) && IS_CHAR (val->etype)) {
+ /* length of initializer string (might contain \0, so do not use strlen) */
+ ilen = DCL_ELEM(val->type);
+
+#if 0
+ /* This causes structflexarray.c to fail. */
+ if(!DCL_ELEM (type))
+ DCL_ELEM (type) = ilen;
+#endif
+
+ /* len is 0 if declartion equals initializer,
+ * >0 if declaration greater than initializer
+ * <0 if declaration less than initializer
+ * Strategy: if >0 emit 0x00 for the rest of the length,
+ * if <0 then emit only the length of declaration elements
+ * and warn user
+ */
+ len = DCL_ELEM (type) - ilen;
+
+// fprintf(stderr, "%s:%d ilen = %i len = %i DCL_ELEM(type) = %i SPEC_CVAL-len = %i\n", __FILE__, __LINE__,
+// ilen, len, DCL_ELEM(type), strlen(SPEC_CVAL(val->etype).v_char));
+
+ if(len >= 0) {
+ /* emit initializer */
+ for(remain=0; remain<ilen; remain++) {
+ pic16_emitDB(SPEC_CVAL(val->etype).v_char[ remain ], ptype, p);
+ } // for
+
+ /* fill array with 0x00 */
+ while(len--) {
+ pic16_emitDB(0x00, ptype, p);
+ } // while
+ } else if (!DCL_ELEM (type)) {
+ // flexible arrays: char str[] = "something"; */
+ for(remain=0; remain<ilen; remain++) {
+ pic16_emitDB(SPEC_CVAL(val->etype).v_char[ remain ], ptype, p);
+ } // for
+ } else {
+ werror (W_EXCESS_INITIALIZERS, "array of chars", sym->name, sym->lineDef);
+ for(remain=0; remain<DCL_ELEM (type); remain++) {
+ pic16_emitDB(SPEC_CVAL(val->etype).v_char[ remain ], ptype, p);
+ } // for
+ } // if
+
+
+// if((remain = (DCL_ELEM (type) - strlen (SPEC_CVAL (val->etype).v_char) - 1)) > 0) {
+// }
+ return 1;
+ } else return 0;
+ } else {
for(remain=0; remain<strlen(s); remain++) {
- pic16_addpCode2pBlock(pb,pic16_newpCode(POC_RETLW,pic16_newpCodeOpLit(s[remain])));
- //fprintf(stderr,"0x%02x ",s[remain]);
+ pic16_emitDB(s[remain], ptype, p);
}
- //fprintf(stderr,"\n");
}
return 1;
}
/*-----------------------------------------------------------------*/
-/* printIvalArray - generates code for array initialization */
+/* pic16_printIvalArray - generates code for array initialization */
/*-----------------------------------------------------------------*/
-static void
-printIvalArray (symbol * sym, sym_link * type, initList * ilist,
- pBlock *pb)
+static void
+pic16_printIvalArray (symbol * sym, sym_link * type, initList * ilist,
+ char ptype, void *p)
{
initList *iloop;
int lcnt = 0, size = 0;
- if(!pb)
+ if(!p)
return;
+
+#if DEBUG_PRINTIVAL
+ fprintf(stderr, "%s\n",__FUNCTION__);
+#endif
/* take care of the special case */
/* array of characters can be init */
/* by a string */
- if (IS_CHAR (type->next)) {
- //fprintf(stderr,"%s:%d - is_char\n",__FUNCTION__,__LINE__);
+ if (IS_CHAR (type->next) && ilist) {
if (!IS_LITERAL(list2val(ilist)->etype)) {
werror (W_INIT_WRONG);
return;
}
- if (printIvalChar (type,
- (ilist->type == INIT_DEEP ? ilist->init.deep : ilist),
- pb, SPEC_CVAL (sym->etype).v_char))
+
+ if(pic16_printIvalChar (sym, type,
+ (ilist->type == INIT_DEEP ? ilist->init.deep : ilist),
+ 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;
}
- iloop = ilist->init.deep;
+ iloop = (ilist ? ilist->init.deep : NULL);
lcnt = DCL_ELEM (type);
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);
/* if not array limits given & we */
/* are out of initialisers then */
if (!DCL_ELEM (type) && !iloop)
- break;
+ break;
/* no of elements given and we */
/* have generated for all of them */
if (!--lcnt) {
- /* if initializers left */
- if (iloop) {
- werror (W_EXCESS_INITIALIZERS, "array", sym->name, sym->lineDef);
- }
- break;
+ /* if initializers left */
+ if (iloop) {
+ werror (W_EXCESS_INITIALIZERS, "array", sym->name, sym->lineDef);
+ }
+ break;
}
}
+#if 0
+ /* This causes bug #1843745. */
/* if we have not been given a size */
if (!DCL_ELEM (type))
DCL_ELEM (type) = size;
+#endif
return;
}
/*-----------------------------------------------------------------*/
-/* printIval - generates code for initial value */
+/* pic16_printIvalBitFields - generate initializer for bitfields */
+/*-----------------------------------------------------------------*/
+static void
+pic16_printIvalBitFields (symbol **sym, initList **ilist, char ptype, void *p)
+{
+ symbol *lsym = *sym;
+ initList *lilist = *ilist;
+ unsigned long ival = 0;
+ int size = 0;
+ unsigned long i;
+
+
+#if DEBUG_PRINTIVAL
+ fprintf(stderr, "%s\n",__FUNCTION__);
+#endif
+
+
+ while (lsym)
+ {
+ if (0 == SPEC_BLEN (lsym->etype))
+ {
+ /* bit-field structure member with a width of 0 */
+ lsym = lsym->next;
+ break;
+ }
+ else if (!SPEC_BUNNAMED (lsym->etype))
+ {
+ /* not an unnamed bit-field structure member */
+ value *val = list2val (lilist);
+ int bit_length = SPEC_BLEN (lsym->etype);
+
+ if (size)
+ {
+ if (bit_length > 8)
+ size += (bit_length + 7) / 8;
+ }
+ else
+ size = (bit_length + 7) / 8;
+
+ ival |= (ulFromVal (val) & ((1ul << bit_length) - 1ul)) << SPEC_BSTR (lsym->etype);
+ lilist = (lilist ? lilist->next : NULL);
+ }
+ lsym = lsym->next;
+ }
+
+ for (i = 0; i < size; i++)
+ pic16_emitDB (BYTE_IN_LONG (ival, i), ptype, p);
+
+ *sym = lsym;
+ *ilist = lilist;
+}
+
+
+/*-----------------------------------------------------------------*/
+/* printIvalStruct - generates initial value for structures */
+/*-----------------------------------------------------------------*/
+static void
+pic16_printIvalStruct (symbol * sym, sym_link * type,
+ initList * ilist, char ptype, void *p)
+{
+ symbol *sflds;
+ initList *iloop = NULL;
+
+
+#if DEBUG_PRINTIVAL
+ fprintf(stderr, "%s\n",__FUNCTION__);
+#endif
+
+ 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;
+ }
+
+ while (sflds)
+ {
+// 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);
+ sflds = sflds->next;
+ iloop = iloop ? iloop->next : NULL;
+ }
+ }
+ if (iloop)
+ werrorfl (sym->fileDef, sym->lineDef, W_EXCESS_INITIALIZERS, "struct", sym->name);
+}
+
+/*-----------------------------------------------------------------*/
+/* printIvalUnion - generates initial value for unions */
/*-----------------------------------------------------------------*/
-static void
-printIval (symbol * sym, sym_link * type, initList * ilist, pBlock *pb)
+static void
+pic16_printIvalUnion (symbol * sym, sym_link * type,
+ initList * ilist, char ptype, void *p)
+{
+ //symbol *sflds;
+ initList *iloop = NULL;
+ int size;
+ symbol *sflds = NULL;
+
+#if DEBUG_PRINTIVAL
+ fprintf(stderr, "%s\n",__FUNCTION__);
+#endif
+
+ assert (type);
+
+ 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;
+ }
+
+ size = SPEC_STRUCT(type)->size;
+ sflds = SPEC_STRUCT(type)->fields;
+ pic16_printIval (sym, sflds->type, iloop, ptype, p);
+
+ /* if the first field is not the longest, fill with 0s */
+ while (size > getSize (sflds->type)) {
+ pic16_emitDB(0, ptype, p);
+ size--;
+ } // while
+}
+
+static int
+pic16_isUnion( symbol *sym, sym_link *type )
+{
+ if (type && SPEC_STRUCT(type)->type == UNION) return 1;
+ return 0;
+}
+
+/*--------------------------------------------------------------------------*/
+/* pic16_printIvalCharPtr - generates initial values for character pointers */
+/*--------------------------------------------------------------------------*/
+static int
+pic16_printIvalCharPtr (symbol * sym, sym_link * type, value * val, char ptype, void *p)
{
- if (!ilist || !pb)
+ int size = 0;
+ int i;
+
+ /* 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
+ */
+
+
+#if DEBUG_PRINTIVAL
+ fprintf(stderr, "%s\n",__FUNCTION__);
+#endif
+
+ 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 == 2)
+ {
+ pic16_printPointerType (val->name, ptype, p);
+ }
+ else if (size == 3)
+ {
+ int type;
+ type = PTR_TYPE (SPEC_OCLS (val->etype));
+ if (val->sym && val->sym->isstrlit) {
+ // this is a literal string
+ type = CPOINTER;
+ }
+ pic16_printGPointerType(val->name, type, ptype, p);
+ }
+ else
+ {
+ fprintf (stderr, "*** internal error: unknown size in "
+ "printIvalCharPtr.\n");
+ assert(0);
+ }
+ }
+ else
+ {
+ // these are literals assigned to pointers
+ for (i = 0; i < size; i++)
+ {
+ pic16_emitDB(pic16aopLiteral(val, i), ptype, p);
+ } // for
+ }
+
+ if (val->sym && val->sym->isstrlit) { // && !isinSet(statsg->syms, val->sym)) {
+ if(ptype == 'p' && !isinSet(statsg->syms, val->sym))addSet (&statsg->syms, val->sym);
+ else if(ptype == 'f' /*&& !isinSet(rel_idataSymSet, val->sym)*/)addSet(&rel_idataSymSet, val->sym);
+ }
+
+ return 1;
+}
+
+/*-----------------------------------------------------------------------*/
+/* pic16_printIvalFuncPtr - generate initial value for function pointers */
+/*-----------------------------------------------------------------------*/
+static void
+pic16_printIvalFuncPtr (sym_link * type, initList * ilist, char ptype, void *p)
+{
+ value *val;
+ int dLvl = 0;
+
+
+#if DEBUG_PRINTIVAL
+ fprintf(stderr, "%s\n",__FUNCTION__);
+#endif
+
+ if (ilist)
+ val = list2val (ilist);
+ else
+ val = valCastLiteral(type, 0.0);
+
+ if (!val) {
+ // an error has been thrown already
+ val = constCharVal (0);
+ }
+
+ if (IS_LITERAL(val->etype)) {
+ if (0 && 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_printGPointerType (val->name, CPOINTER /*DCL_TYPE(val->type)*/, ptype, p);
+ } else {
+ pic16_printGPointerType (val->sym->rname, CPOINTER /*DCL_TYPE(val->type)*/, ptype, p);
+
+ if(IS_FUNC(val->sym->type) && !val->sym->used && !IS_STATIC(val->sym->etype)) {
+
+ if(!checkSym(publics, val->sym))
+ if(checkAddSym(&externs, val->sym) && (ptype == 'f')) {
+ /* this has not been declared as extern
+ * so declare it as a 'late extern' just after the symbol */
+ fprintf((FILE *)p, ";\tdeclare symbol as extern\n");
+ fprintf((FILE *)p, "\textern\t%s\n", val->sym->rname);
+ fprintf((FILE *)p, ";\tcontinue variable declaration\n");
+ }
+ }
+ }
+
+ return;
+}
+
+
+/*-----------------------------------------------------------------*/
+/* pic16_printIvalPtr - generates initial value for pointers */
+/*-----------------------------------------------------------------*/
+static void
+pic16_printIvalPtr (symbol * sym, sym_link * type, initList * ilist, char ptype, void *p)
+{
+ value *val;
+ int size;
+ int i;
+
+#if 0
+ fprintf(stderr, "%s:%d initialising pointer: %s size: %d\n", __FILE__, __LINE__,
+ sym->rname, getSize(sym->type));
+#endif
+
+ /* 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);
+ }
+
+ size = getSize (type);
+
+ /* if val is literal */
+ if (IS_LITERAL (val->etype))
+ {
+ for (i = 0; i < size; i++)
+ {
+ pic16_emitDB(pic16aopLiteral(val, i), ptype, p);
+ } // for
+ return;
+ }
+
+ if (size == 1) /* Z80 specific?? */
+ {
+ pic16_emitDS(val->name, ptype, p);
+ }
+ else if (size == 2)
+ {
+ pic16_printPointerType (val->name, ptype, p);
+ }
+ else if (size == 3)
+ {
+ int itype = 0;
+ itype = PTR_TYPE (SPEC_OCLS (val->etype));
+ pic16_printGPointerType (val->name, itype, ptype, p);
+ }
+ else
+ {
+ assert(0);
+ }
+}
+
+
+
+/*-----------------------------------------------------------------*/
+/* 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;
+
+#if 0
+ fprintf(stderr, "%s:%d generating init for %s\n", __FILE__, __LINE__, sym->name);
+ fprintf(stderr, "%s: IS_STRUCT: %d IS_ARRAY: %d IS_PTR: %d IS_SPEC: %d\n", sym->name,
+ IS_STRUCT(type), IS_ARRAY(type), IS_PTR(type), IS_SPEC(type));
+#endif
+
+ /* if structure then */
+ if (IS_STRUCT (type))
{
- //fprintf(stderr,"%s pointer\n",__FUNCTION__);
- //printIvalPtr (sym, type, ilist, oFile);
+ if (pic16_isUnion(sym, type))
+ {
+ //fprintf(stderr,"%s union\n",__FUNCTION__);
+ pic16_printIvalUnion (sym, type, ilist, ptype, p);
+ } else {
+ //fprintf(stderr,"%s struct\n",__FUNCTION__);
+ pic16_printIvalStruct (sym, type, ilist, ptype, p);
+ }
return;
}
- /* if this is an array */
+ /* 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 0
+ // 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);
+static int
+PIC16_IS_CONFIG_ADDRESS(int address)
+{
+ return ((address >= pic16->cwInfo.confAddrStart && address <= pic16->cwInfo.confAddrEnd));
+}
+
+static int
+PIC16_IS_IDLOC_ADDRESS(int address)
+{
+ return ((address >= pic16->idInfo.idAddrStart && address <= pic16->idInfo.idAddrEnd));
+}
+
/*-----------------------------------------------------------------*/
/* emitStaticSeg - emitcode for the static segment */
/*-----------------------------------------------------------------*/
pic16emitStaticSeg (memmap * map)
{
symbol *sym;
-
- fprintf (map->oFile, ";\t.area\t%s\n", map->sname);
+ static int didcode = 0;
//fprintf(stderr, "%s\n",__FUNCTION__);
+ pic16_initDB ();
+
/* for all variables in this segment do */
- for (sym = setFirstItem (map->syms); sym;
- sym = setNextItem (map->syms))
+ for (sym = setFirstItem (map->syms); sym; sym = setNextItem (map->syms))
{
+
+#if 0
+ fprintf (stderr, "%s\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", __FUNCTION__, 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) ulFromVal (list2val (sym->ival)));
+
+ continue;
+ }
+
+ if (SPEC_ABSA (sym->etype) && PIC16_IS_IDLOC_ADDRESS (SPEC_ADDR (sym->etype)))
+ {
+ pic16_assignIdByteValue (SPEC_ADDR (sym->etype), (char) ulFromVal (list2val (sym->ival)));
+
+ continue;
+ }
+
/* if it is "extern" then do nothing */
- if (IS_EXTERN (sym->etype))
- continue;
+ if (IS_EXTERN (sym->etype) /* && !SPEC_ABSA(sym->etype) */ )
+ {
+ checkAddSym (&externs, sym);
+ continue;
+ }
/* if it is not static add it to the public
table */
if (!IS_STATIC (sym->etype))
- addSetHead (&publics, sym);
+ {
+ /* do not emit if it is a config word declaration */
+ checkAddSym (&publics, sym);
+ }
-#if 0
/* print extra debug info if required */
if (options.debug || sym->level == 0)
- {
- /* NOTE to me - cdbFile may be null in which case,
- * the sym name will be printed to stdout. oh well */
- if(cdbFile)
- cdbSymbol (sym, cdbFile, FALSE, FALSE);
-
- if (!sym->level)
- { /* global */
- if (IS_STATIC (sym->etype))
- fprintf (code->oFile, "F%s_", moduleName); /* scope is file */
- else
- fprintf (code->oFile, "G_"); /* scope is global */
- }
- else
- /* symbol is local */
- fprintf (code->oFile, "L%s_",
- (sym->localof ? sym->localof->name : "-null-"));
- fprintf (code->oFile, "%s_%d_%d", sym->name, sym->level, sym->block);
-
- }
-#endif
+ {
+ /* NOTE to me - cdbFile may be null in which case,
+ * the sym name will be printed to stdout. oh well */
+ debugFile->writeSymbol (sym);
+ }
/* if it has an absolute address */
if (SPEC_ABSA (sym->etype))
- {
- if (options.debug || sym->level == 0)
- fprintf (code->oFile, " == 0x%04x\n", SPEC_ADDR (sym->etype));
-
- fprintf (code->oFile, "%s\t=\t0x%04x\n",
- sym->rname,
- SPEC_ADDR (sym->etype));
- }
+ {
+// fprintf(stderr, "%s:%d spec_absa is true for symbol: %s\n",
+// __FILE__, __LINE__, sym->name);
+
+ if (!sym->ival && IS_ARRAY (sym->type) && IS_CHAR (sym->type->next) && SPEC_CVAL (sym->etype).v_char)
+ {
+ /* symbol has absolute address but no initial value */
+ /* special case for character strings */
+
+// fprintf(stderr, "%s:%d printing code string from %s\n", __FILE__, __LINE__, sym->rname);
+
+ pic16_pCodeConstString (sym->rname, SPEC_CVAL (sym->etype).v_char, getSize (sym->type));
+ }
+ else
+ {
+ pBlock *pb;
+ symbol *asym;
+ absSym *abSym;
+ pCode *pcf;
+
+ /* symbol has absolute address and initial value */
+ ++noAlloc;
+ resolveIvalSym (sym->ival, sym->type);
+ asym = newSymbol (sym->rname, 0);
+ abSym = Safe_calloc (1, sizeof (absSym));
+ strcpy (abSym->name, 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));
+ //fprintf(stderr, "%s:%d [1] generating init for label: %s\n", __FILE__, __LINE__, sym->rname);
+ /* if it has an initial value */
+ if (sym->ival)
+ {
+ pic16_printIval (sym, sym->type, sym->ival, 'p', (void *) pb);
+ pic16_flushDB ('p', (void *) pb);
+ }
+
+ pic16_addpCode2pBlock (pb, pic16_newpCodeFunction (NULL, NULL));
+ --noAlloc;
+ }
+ }
else
- {
- if (options.debug || sym->level == 0)
- fprintf (code->oFile, " == .\n");
-
- /* if it has an initial value */
- if (sym->ival)
- {
- pBlock *pb;
+ {
+// fprintf(stderr, "%s:%d spec_absa is false for symbol: %s\n",
+// __FILE__, __LINE__, sym->name);
+
+
+ /* if it has an initial value */
+ if (sym->ival)
+ {
+ pBlock *pb;
+
+ /* symbol doesn't have absolute address but has initial value */
+ dbuf_printf (&code->oBuf, "%s:\n", sym->rname);
+ ++noAlloc;
+ resolveIvalSym (sym->ival, sym->type);
+
+ pb = pic16_newpCodeChain (NULL, 'P', pic16_newpCodeCharP ("; Starting pCode block for Ival"));
+ pic16_addpBlock (pb);
+
+ if (!didcode)
+ {
+ /* make sure that 'code' directive is emitted before, once */
+ pic16_addpCode2pBlock (pb, pic16_newpCodeAsmDir ("code", NULL));
+
+ ++didcode;
+ }
+
+ pic16_addpCode2pBlock (pb, pic16_newpCodeLabel (sym->rname, -1));
+ //fprintf(stderr, "%s:%d [2] generating init for label: %s\n", __FILE__, __LINE__, sym->rname);
+ pic16_printIval (sym, sym->type, sym->ival, 'p', (void *) pb);
+ pic16_flushDB ('p', (void *) pb);
+ --noAlloc;
+ }
+ else
+ {
+
+ /* symbol doesn't have absolute address and no initial value */
+ /* allocate space */
+// fprintf(stderr, "%s:%d [3] generating init for label: %s\n", __FILE__, __LINE__, sym->rname);
+ dbuf_printf (&code->oBuf, "%s:\n", sym->rname);
+ /* special case for character strings */
+ if (IS_ARRAY (sym->type) && IS_CHAR (sym->type->next) && SPEC_CVAL (sym->etype).v_char)
+ {
+
+// fprintf(stderr, "%s:%d printing code string for %s\n", __FILE__, __LINE__, sym->rname);
+
+ pic16_pCodeConstString (sym->rname, SPEC_CVAL (sym->etype).v_char, getSize (sym->type));
+ }
+ else
+ {
+ assert (0);
+ }
+ }
+ }
+ }
+}
- fprintf (code->oFile, "%s:\n", sym->rname);
- noAlloc++;
- resolveIvalSym (sym->ival);
- //printIval (sym, sym->type, sym->ival, code->oFile);
- pb = pic16_newpCodeChain(NULL, 'P',pic16_newpCodeCharP("; Starting pCode block for Ival"));
- pic16_addpBlock(pb);
- pic16_addpCode2pBlock(pb,pic16_newpCodeLabel(sym->rname,-1));
+/*-----------------------------------------------------------------*/
+/* pic16_emitConfigRegs - emits the configuration registers */
+/*-----------------------------------------------------------------*/
+void pic16_emitConfigRegs(FILE *of)
+{
+ int i;
- printIval (sym, sym->type, sym->ival, pb);
- noAlloc--;
- }
- else
- {
+ for(i=0;i<=(pic16->cwInfo.confAddrEnd-pic16->cwInfo.confAddrStart);i++)
+ if(pic16->cwInfo.crInfo[i].emit) //mask != -1)
+ fprintf (of, "\t__config 0x%x, 0x%02x\n",
+ pic16->cwInfo.confAddrStart+i,
+ (unsigned char) pic16->cwInfo.crInfo[i].value);
+}
- /* 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);
- }
- }
- }
+void pic16_emitIDRegs(FILE *of)
+{
+ int i;
+ for(i=0;i<=(pic16->idInfo.idAddrEnd-pic16->idInfo.idAddrStart);i++)
+ if(pic16->idInfo.irInfo[i].emit)
+ fprintf (of, "\t__idlocs 0x%06x, 0x%02x\n",
+ pic16->idInfo.idAddrStart+i,
+ (unsigned char) pic16->idInfo.irInfo[i].value);
}
-/*-----------------------------------------------------------------*/
-/* emitMaps - emits the code for the data portion the code */
-/*-----------------------------------------------------------------*/
static void
pic16emitMaps ()
{
pic16emitRegularMap (sfrbit, FALSE, FALSE);
pic16emitRegularMap (code, TRUE, FALSE);
pic16emitStaticSeg (statsg);
+ pic16emitStaticSeg (c_abs);
}
/*-----------------------------------------------------------------*/
/* createInterruptVect - creates the interrupt vector */
/*-----------------------------------------------------------------*/
static void
-pic16createInterruptVect (FILE * vFile)
+pic16createInterruptVect (struct dbuf_s * vBuf)
{
- 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;
- }
+ /* 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 0
+ if((!pic16_options.omit_ivt) || (pic16_options.omit_ivt && pic16_options.leave_reset)) {
+ dbuf_printf (vBuf, ";\t.area\t%s\n", CODE_NAME);
+ dbuf_printf (vBuf, ".intvecs\tcode\t0x%06x\n", pic16_options.ivt_loc);
+
+ /* 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);
+ }
+ }
+#endif
-/*
- * 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");
+/*-----------------------------------------------------------------*/
+/* pic16initialComments - puts in some initial comments */
+/*-----------------------------------------------------------------*/
+static void
+pic16initialComments (FILE * afile)
+{
+ initialComments (afile);
+ fprintf (afile, "; PIC16 port for the Microchip 16-bit core micros\n");
+ if (pic16_options.xinst) {
+ fprintf (afile, "; * Extended Instruction Set\n");
+ } // if
+
+ if (pic16_mplab_comp) {
+ fprintf(afile, "; * MPLAB/MPASM/MPASMWIN/MPLINK compatibility mode enabled\n");
+ } // if
+ fprintf (afile, "%s", iComments2);
+
+ if (options.debug) {
+ fprintf (afile, "\n\t.ident \"SDCC version %s #%s [pic16 port]%s\"\n",
+ SDCC_VERSION_STR, getBuildNumber(), (!pic16_options.xinst?"":" {extended}") );
+ } // if
+}
- if (!port->genIVT || !(port->genIVT (vFile, interrupts, maxInterrupts)))
- {
- /* "generic" interrupt table header (if port doesn't specify one).
+int
+pic16_stringInSet(const char *str, set **world, int autoAdd)
+{
+ char *s;
- * Look suspiciously like 8051 code to me...
- */
+ if (!str) return 1;
+ assert(world);
- fprintf (vFile, ";\tljmp\t__sdcc_gsinit_startup\n");
+ for (s = setFirstItem(*world); s; s = setNextItem(*world))
+ {
+ /* found in set */
+ if (0 == strcmp(s, str)) return 1;
+ }
+ /* not found */
+ if (autoAdd) addSet(world, Safe_strdup(str));
+ return 0;
+}
- /* 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");
- }
+static int
+pic16_emitSymbolIfNew(FILE *file, const char *fmt, const char *sym, int checkLocals)
+{
+ static set *emitted = NULL;
+
+ if (!pic16_stringInSet(sym, &emitted, 1)) {
+ /* sym was not in emittedSymbols */
+ if (!checkLocals || !pic16_stringInSet(sym, &pic16_localFunctions, 0)) {
+ /* sym is not a locally defined function---avoid bug #1443651 */
+ fprintf( file, fmt, sym );
+ return 0;
}
+ }
+ return 1;
}
-
/*-----------------------------------------------------------------*/
-/* initialComments - puts in some initial comments */
+/* printPublics - generates global declarations for publics */
/*-----------------------------------------------------------------*/
static void
-pic16initialComments (FILE * afile)
+pic16printPublics (FILE *afile)
{
- initialComments (afile);
- fprintf (afile, "; PIC port for the 16-bit core\n");
- fprintf (afile, iComments2);
+ symbol *sym;
+
+ fprintf (afile, "\n%s", iComments2);
+ fprintf (afile, "; public variables in this module\n");
+ fprintf (afile, "%s", iComments2);
+ for(sym = setFirstItem (publics); sym; sym = setNextItem (publics))
+ /* sanity check */
+ if(!IS_STATIC(sym->etype))
+ pic16_emitSymbolIfNew(afile, "\tglobal %s\n", sym->rname, 0);
}
/*-----------------------------------------------------------------*/
-/* printPublics - generates .global for publics */
+/* printExterns - generates extern declarations for externs */
/*-----------------------------------------------------------------*/
static void
-pic16printPublics (FILE * afile)
+pic16_printExterns(FILE *afile)
{
symbol *sym;
- fprintf (afile, "%s", iComments2);
- fprintf (afile, "; publics variables in this module\n");
- fprintf (afile, "%s", iComments2);
+ /* print nothing if no externs to declare */
+ if(!elementsInSet(externs) && !elementsInSet(pic16_builtin_functions))
+ return;
- for (sym = setFirstItem (publics); sym;
- sym = setNextItem (publics))
- fprintf (afile, ";\t.globl %s\n", sym->rname);
-}
+ fprintf(afile, "\n%s", iComments2);
+ fprintf(afile, "; extern variables in this module\n");
+ fprintf(afile, "%s", iComments2);
+ for(sym = setFirstItem(externs); sym; sym = setNextItem(externs))
+ pic16_emitSymbolIfNew(afile, "\textern %s\n", sym->rname, 1);
+ for(sym = setFirstItem(pic16_builtin_functions); sym; sym = setNextItem(pic16_builtin_functions))
+ pic16_emitSymbolIfNew(afile, "\textern _%s\n", sym->name, 1);
+}
/*-----------------------------------------------------------------*/
/* emitOverlay - will emit code for the overlay stuff */
/*-----------------------------------------------------------------*/
static void
-pic16emitOverlay (FILE * afile)
+pic16emitOverlay (struct dbuf_s *aBuf)
{
set *ovrset;
if (!elementsInSet (ovrSetSets))
- fprintf (afile, ";\t.area\t%s\n", port->mem.overlay_name);
+ dbuf_printf (aBuf, ";\t.area\t%s\n", port->mem.overlay_name);
/* for each of the sets in the overlay segment do */
for (ovrset = setFirstItem (ovrSetSets); ovrset;
symbol *sym;
if (elementsInSet (ovrset))
- {
- /* this dummy area is used to fool the assembler
- otherwise the assembler will append each of these
- declarations into one chunk and will not overlay
- sad but true */
- fprintf (afile, ";\t.area _DUMMY\n");
- /* output the area informtion */
- fprintf (afile, ";\t.area\t%s\n", port->mem.overlay_name); /* MOF */
- }
+ {
+ /* this dummy area is used to fool the assembler
+ otherwise the assembler will append each of these
+ declarations into one chunk and will not overlay
+ sad but true */
+ dbuf_printf (aBuf, ";\t.area _DUMMY\n");
+ /* output the area informtion */
+ dbuf_printf (aBuf, ";\t.area\t%s\n", port->mem.overlay_name); /* MOF */
+ }
for (sym = setFirstItem (ovrset); sym;
- sym = setNextItem (ovrset))
- {
-
- /* if extern then do nothing */
- if (IS_EXTERN (sym->etype))
- continue;
-
- /* if allocation required check is needed
- then check if the symbol really requires
- allocation only for local variables */
- if (!IS_AGGREGATE (sym->type) &&
- !(sym->_isparm && !IS_REGPARM (sym->etype))
- && !sym->allocreq && sym->level)
- continue;
-
- /* if global variable & not static or extern
- and addPublics allowed then add it to the public set */
- if ((sym->_isparm && !IS_REGPARM (sym->etype))
- && !IS_STATIC (sym->etype))
- addSetHead (&publics, sym);
-
- /* if extern then do nothing or is a function
- then do nothing */
- if (IS_FUNC (sym->type))
- continue;
-
-#if 0
- /* print extra debug info if required */
- if (options.debug || sym->level == 0)
- {
-
- cdbSymbol (sym, cdbFile, FALSE, FALSE);
-
- if (!sym->level)
- { /* global */
- if (IS_STATIC (sym->etype))
- fprintf (afile, "F%s_", moduleName); /* scope is file */
- else
- fprintf (afile, "G_"); /* scope is global */
- }
- else
- /* symbol is local */
- fprintf (afile, "L%s_",
- (sym->localof ? sym->localof->name : "-null-"));
- fprintf (afile, "%s_%d_%d", sym->name, sym->level, sym->block);
- }
-#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 (afile, " == 0x%04x\n", SPEC_ADDR (sym->etype));
-
- fprintf (afile, "%s\t=\t0x%04x\n",
- sym->rname,
- SPEC_ADDR (sym->etype));
- }
- else
- {
- if (options.debug || sym->level == 0)
- fprintf (afile, "==.\n");
-
- /* allocate space */
- fprintf (afile, "%s:\n", sym->rname);
- fprintf (afile, "\t.ds\t0x%04x\n", (unsigned int) getSize (sym->type) & 0xffff);
- }
-
- }
+ sym = setNextItem (ovrset))
+ {
+
+ /* if extern then do nothing */
+ if (IS_EXTERN (sym->etype))
+ continue;
+
+ /* if allocation required check is needed
+ then check if the symbol really requires
+ allocation only for local variables */
+ if (!IS_AGGREGATE (sym->type) &&
+ !(sym->_isparm && !IS_REGPARM (sym->etype))
+ && !sym->allocreq && sym->level)
+ continue;
+
+ /* if global variable & not static or extern
+ and addPublics allowed then add it to the public set */
+ if ((sym->_isparm && !IS_REGPARM (sym->etype))
+ && !IS_STATIC (sym->etype)) {
+// fprintf(stderr, "%s:%d %s accessed\n", __FILE__, __LINE__, __FUNCTION__);
+ checkAddSym(&publics, sym);
+// addSetHead (&publics, sym);
+ }
+
+ /* if extern then do nothing or is a function
+ then do nothing */
+ if (IS_FUNC (sym->type))
+ continue;
+
+
+ /* if is has an absolute address then generate
+ an equate for this no need to allocate space */
+ if (SPEC_ABSA (sym->etype))
+ {
+
+ if (options.debug || sym->level == 0)
+ dbuf_printf (aBuf, " == 0x%04x\n", SPEC_ADDR (sym->etype));
+
+ dbuf_printf (aBuf, "%s\t=\t0x%04x\n",
+ sym->rname,
+ SPEC_ADDR (sym->etype));
+ }
+ else
+ {
+ if (options.debug || sym->level == 0)
+ dbuf_printf (aBuf, "==.\n");
+
+ /* allocate space */
+ dbuf_printf (aBuf, "%s:\n", sym->rname);
+ dbuf_printf (aBuf, "\t.ds\t0x%04x\n", (unsigned int) getSize (sym->type) & 0xffff);
+ }
+
+ }
}
}
+static void
+emitStatistics(FILE *asmFile)
+{
+ unsigned long isize, udsize, ramsize;
+ statistics.isize = pic16_countInstructions();
+ isize = (statistics.isize >= 0) ? statistics.isize : 0;
+ udsize = (statistics.udsize >= 0) ? statistics.udsize : 0;
+ ramsize = pic16 ? pic16->RAMsize : 0x200;
+ ramsize -= 256; /* ignore access bank and SFRs */
+ if (ramsize == 0) ramsize = 64; /* prevent division by zero (below) */
+
+ fprintf (asmFile, "\n\n; Statistics:\n");
+ fprintf (asmFile, "; code size:\t%5ld (0x%04lx) bytes (%5.2f%%)\n; \t%5ld (0x%04lx) words\n",
+ isize, isize, (isize*100.0)/(128UL << 10),
+ isize>>1, isize>>1);
+ fprintf (asmFile, "; udata size:\t%5ld (0x%04lx) bytes (%5.2f%%)\n",
+ udsize, udsize, (udsize*100.0) / (1.0 * ramsize));
+ fprintf (asmFile, "; access size:\t%5ld (0x%04lx) bytes\n",
+ statistics.intsize, statistics.intsize);
+
+ fprintf (asmFile, "\n\n");
+}
+
+
/*-----------------------------------------------------------------*/
/* glue - the final glue that hold the whole thing together */
void
pic16glue ()
{
-
- FILE *vFile;
FILE *asmFile;
- FILE *ovrFile = tempfile();
+ struct dbuf_s ovrBuf;
+ struct dbuf_s vBuf;
- addSetHead(&tmpfileSet,ovrFile);
- pic16_pCodeInitRegisters();
+ dbuf_init(&ovrBuf, 4096);
+ dbuf_init(&vBuf, 4096);
- 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);
- /* 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)));
+ pic16_pCodeInitRegisters();
- if (options.mainreturn) {
+ if(pic16_options.no_crt && mainf && IFFUNC_HASBODY(mainf->type)) {
+ pBlock *pb = pic16_newpCodeChain(NULL,'X',pic16_newpCodeCharP("; Starting pCode block"));
- pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(";\treturn from main will return to caller\n"));
- pic16_addpCode2pBlock(pb,pic16_newpCode(POC_RETURN,NULL));
+ pic16_addpBlock(pb);
- } else {
+ /* 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_end"))));
+ pic16_addpCode2pBlock(pb, pic16_newpCode(POC_LFSR,
+ pic16_popGetLit2(2, pic16_newpCodeOpRegFromStr("_stack_end"))));
+ }
- pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(";\treturn from main will lock up\n"));
- pic16_addpCode2pBlock(pb,pic16_newpCode(POC_GOTO,pic16_newpCodeOp("$",PO_STR)));
+ /* put in the call to main */
+ pic16_addpCode2pBlock(pb,pic16_newpCode(POC_CALL,pic16_newpCodeOp("_main",PO_STR)));
+ if (options.mainreturn) {
+ pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(";\treturn from main will return to caller\n"));
+ pic16_addpCode2pBlock(pb,pic16_newpCode(POC_RETURN,NULL));
+ } else {
+ pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(";\treturn from main will lock up\n"));
+ pic16_addpCode2pBlock(pb,pic16_newpCode(POC_GOTO,pic16_newpCodeOp("$",PO_STR)));
+ }
}
- }
+ /* 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 */
- /* 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
- pic16_movepBlock2Head('P'); // Last
- pic16_movepBlock2Head(code->dbName);
- pic16_movepBlock2Head('X');
- pic16_movepBlock2Head(statsg->dbName); // First
+ /* print the global struct definitions */
+ /* PENDING: this isnt the best place but it will do */
+ if (port->general.glue_up_main) {
+ /* create the interrupt vector table */
+ pic16createInterruptVect (&vBuf);
+ }
- /* print the global struct definitions */
- if (options.debug)
- cdbStructBlock (0); //,cdbFile);
+ /* emit code for the all the variables declared */
+ pic16emitMaps ();
- 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);
- }
+ /* do the overlay segments */
+ pic16emitOverlay(&ovrBuf);
+ pic16_AnalyzepCode('*');
- addSetHead(&tmpfileSet,vFile);
-
- /* emit code for the all the variables declared */
- pic16emitMaps ();
- /* do the overlay segments */
- pic16emitOverlay(ovrFile);
+#if 1
+ if(pic16_options.dumpcalltree) {
+ FILE *cFile;
+ sprintf(buffer, "%s", dstFileName);
+ strcat(buffer, ".calltree");
+ cFile = fopen(buffer, "w");
+ pic16_printCallTree( cFile );
+ fclose(cFile);
+ }
+#endif
- pic16_AnalyzepCode('*');
+ pic16_InlinepCode();
+ pic16_AnalyzepCode('*');
- //#ifdef PCODE_DEBUG
- //pic16_printCallTree(stderr);
- //#endif
- pic16_InlinepCode();
+ 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, "%s", fullDstFileName);
+ } else {
+ sprintf (buffer, "%s", dstFileName);
+ strcat (buffer, ".asm");
+ }
- pic16_AnalyzepCode('*');
+ if(!(asmFile = fopen (buffer, "w"))) {
+ werror (E_FILE_OPEN_ERR, buffer);
+ exit (1);
+ }
- pic16_pcode_test();
+ /* initial comments */
+ pic16initialComments (asmFile);
+ /* print module name */
+ if(options.debug)
+ fprintf(asmFile, "\t.file\t\"%s\"\n", fullSrcFileName);
- /* now put it all together into the assembler file */
- /* create the assembler file name */
-
- if ((noAssemble || options.c1mode) && fullDstFileName)
- {
- sprintf (buffer, fullDstFileName);
+ /* Let the port generate any global directives, etc. */
+ if(port->genAssemblerPreamble) {
+ port->genAssemblerPreamble(asmFile);
}
- else
- {
- sprintf (buffer, dstFileName);
- strcat (buffer, ".asm");
+
+ /* Put all variables into a cblock */
+ pic16_AnalyzeBanking();
+
+#if 0
+ if(pic16_options.opt_flags & OF_LR_SUPPORT) {
+ pic16_OptimizeLocalRegs();
}
+#endif
- if (!(asmFile = fopen (buffer, "w"))) {
- werror (E_FILE_OPEN_ERR, buffer);
- exit (1);
- }
-
- /* initial comments */
- pic16initialComments (asmFile);
-
- /* print module name */
- fprintf (asmFile, ";\t.module %s\n", moduleName);
-
- /* Let the port generate any global directives, etc. */
- if (port->genAssemblerPreamble)
- {
- port->genAssemblerPreamble(asmFile);
+ /* remove redundant BANKSELs -- added by RN 2005-01-17 */
+ if(pic16_options.opt_banksel > 1) {
+ pic16_OptimizeBanksel();
}
-
- /* 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);
-
-
- /* 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");
- }
- /* 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 ) {
+ /* turn GOTOs into BRAs -- added by RN 2004-11-16 */
+ if(!(pic16_options.opt_flags & OF_NO_OPTIMIZE_GOTO)) {
+ pic16_OptimizeJumps();
+ }
+
+ /* print the global variables in this module */
+ pic16printPublics (asmFile);
+
+ /* print the extern variables to this module */
+ pic16_printExterns(asmFile);
+
+ pic16_writeUsedRegs(asmFile);
+
+#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 0
+ /* no xdata in pic */
+ /* copy xtern ram data */
fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; external stack \n");
+ fprintf (asmFile, "; external ram data\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);
-
-
- /* copy the bit segment */
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; bit data\n");
- fprintf (asmFile, "%s", iComments2);
- copyFile (asmFile, bit->oFile);
-
-
-/* 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)) {
+ dbuf_write_and_destroy (&xdata->oBuf, asmFile);
+#endif
+
+#if 0
+ /* copy the bit segment */
fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; interrupt vector \n");
+ fprintf (asmFile, "; bit data\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);
+ dbuf_write_and_destroy (&bit->oBuf, asmFile);
+#endif
- if (mainf && IFFUNC_HASBODY(mainf->type)) {
- fprintf (asmFile,"__sdcc_gsinit_startup:\n");
+ /* copy the interrupt vector table */
+ if(mainf && IFFUNC_HASBODY(mainf->type)) {
+ fprintf (asmFile, "\n%s", iComments2);
+ fprintf (asmFile, "; interrupt vector \n");
+ fprintf (asmFile, "%s", iComments2);
+ dbuf_write_and_destroy (&vBuf, asmFile);
+ }
-#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 global & static initialisations */
+ fprintf (asmFile, "\n%s", iComments2);
+ fprintf (asmFile, "; global & static initialisations\n");
+ fprintf (asmFile, "%s", iComments2);
+
+ if(pic16_debug_verbose)
+ fprintf(asmFile, "; A code from now on!\n");
+
+ pic16_copypCode(asmFile, 'A');
+
+ if(pic16_options.no_crt) {
+ if(mainf && IFFUNC_HASBODY(mainf->type)) {
+ fprintf(asmFile, "\tcode\n");
+ fprintf(asmFile,"__sdcc_gsinit_startup:\n");
+ }
}
-#endif
- }
+// dbuf_write_and_destroy (&code->oBuf, stderr);
- 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");
+ fprintf(asmFile, "; I code from now on!\n");
+ pic16_copypCode(asmFile, 'I');
+
+ if(pic16_debug_verbose)
+ fprintf(asmFile, "; dbName from now on!\n");
+
+ pic16_copypCode(asmFile, statsg->dbName);
+
+ if(pic16_options.no_crt) {
+ if (port->general.glue_up_main && mainf && IFFUNC_HASBODY(mainf->type)) {
+ fprintf (asmFile,"\tgoto\t__sdcc_program_startup\n");
+ }
}
-
- /* copy over code */
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, "; code\n");
- fprintf (asmFile, "%s", iComments2);
- fprintf (asmFile, ";\t.area %s\n", port->mem.code_name);
- //copyFile (stderr, code->oFile);
+ if(pic16_debug_verbose)
+ fprintf(asmFile, "; X code from now on!\n");
- fprintf(asmFile, "; I code from now on!\n");
- pic16_copypCode(asmFile, 'I');
+ pic16_copypCode(asmFile, 'X');
- fprintf(asmFile, "; dbName from now on!\n");
- pic16_copypCode(asmFile, statsg->dbName);
+ if(pic16_debug_verbose)
+ fprintf(asmFile, "; M code from now on!\n");
- fprintf(asmFile, "; X code from now on!\n");
- pic16_copypCode(asmFile, 'X');
- fprintf(asmFile, "; M code from now on!\n");
- pic16_copypCode(asmFile, 'M');
- pic16_copypCode(asmFile, code->dbName);
- pic16_copypCode(asmFile, 'P');
+ pic16_copypCode(asmFile, 'M');
+ pic16_copypCode(asmFile, code->dbName);
- fprintf (asmFile,"\tend\n");
+ pic16_copypCode(asmFile, 'P');
- fclose (asmFile);
+ emitStatistics(asmFile);
- rm_tmpfiles();
+ fprintf (asmFile,"\tend\n");
+ fclose (asmFile);
}
projects / fw / sdcc / blobdiff