/*
* Get a string equate's value
*/
char *
sym_GetStringValue(char *tzSym)
{
struct sSymbol *pSym;
if ((pSym = sym_FindSymbol(tzSym)) != NULL)
return (pSym->pMacro);
else {
yyerror("Stringsymbol '%s' not defined", tzSym);
}
return (NULL);
}
void fstk_RunString(char *s)
{
struct sSymbol *pSym;
if ((pSym = sym_FindSymbol(s)) != NULL) {
pushcontext();
nCurrentStatus = STAT_isMacroArg;
strcpy(tzCurrentFileName, s);
CurrentFlexHandle =
yy_scan_bytes(pSym->pMacro, strlen(pSym->pMacro));
yy_switch_to_buffer(CurrentFlexHandle);
} else
yyerror("No such string symbol");
}
void rpn_Symbol(struct Expression *expr, char *tzSym)
{
if (!sym_isConstant(tzSym)) {
struct sSymbol *psym;
rpn_Reset(expr);
psym = sym_FindSymbol(tzSym);
if (psym == NULL || psym->pSection == pCurrentSection
|| psym->pSection == NULL)
expr->isPCRel = 1;
expr->isReloc = 1;
pushbyte(expr, RPN_SYM);
while (*tzSym)
pushbyte(expr, *tzSym++);
pushbyte(expr, 0);
} else
rpn_Number(expr, sym_GetConstantValue(tzSym));
}
void rpn_Bank(struct Expression *expr, char *tzSym)
{
if (!sym_isConstant(tzSym)) {
struct sSymbol *psym;
rpn_Reset(expr);
psym = sym_FindSymbol(tzSym);
if (nPass == 2 && psym == NULL) {
sprintf(temptext, "'%s' not defined", tzSym);
yyerror(temptext);
}
expr->isReloc = 1;
pushbyte(expr, RPN_BANK);
while (*tzSym)
pushbyte(expr, *tzSym++);
pushbyte(expr, 0);
} else
yyerror("BANK argument must be a relocatable identifier");
}
/*
* Create a new patch (includes the rpn expr)
*/
void
createpatch(ULONG type, struct Expression * expr)
{
struct Patch *pPatch;
UWORD rpndata;
UBYTE rpnexpr[2048];
char tzSym[512];
ULONG rpnptr = 0, symptr;
pPatch = allocpatch();
pPatch->nType = type;
strcpy(pPatch->tzFilename, tzCurrentFileName);
pPatch->nLine = nLineNo;
pPatch->nOffset = nPC;
while ((rpndata = rpn_PopByte(expr)) != 0xDEAD) {
switch (rpndata) {
case RPN_CONST:
rpnexpr[rpnptr++] = RPN_CONST;
rpnexpr[rpnptr++] = rpn_PopByte(expr);
rpnexpr[rpnptr++] = rpn_PopByte(expr);
rpnexpr[rpnptr++] = rpn_PopByte(expr);
rpnexpr[rpnptr++] = rpn_PopByte(expr);
break;
case RPN_SYM:
symptr = 0;
while ((tzSym[symptr++] = rpn_PopByte(expr)) != 0);
if (sym_isConstant(tzSym)) {
ULONG value;
value = sym_GetConstantValue(tzSym);
rpnexpr[rpnptr++] = RPN_CONST;
rpnexpr[rpnptr++] = value & 0xFF;
rpnexpr[rpnptr++] = value >> 8;
rpnexpr[rpnptr++] = value >> 16;
rpnexpr[rpnptr++] = value >> 24;
} else {
struct sSymbol *sym;
if ((sym = sym_FindSymbol(tzSym)) == NULL)
break;
symptr = addsymbol(sym);
rpnexpr[rpnptr++] = RPN_SYM;
rpnexpr[rpnptr++] = symptr & 0xFF;
rpnexpr[rpnptr++] = symptr >> 8;
rpnexpr[rpnptr++] = symptr >> 16;
rpnexpr[rpnptr++] = symptr >> 24;
}
break;
case RPN_BANK: {
struct sSymbol *sym;
symptr = 0;
while ((tzSym[symptr++] = rpn_PopByte(expr)) != 0);
if ((sym = sym_FindSymbol(tzSym)) == NULL)
break;
symptr = addsymbol(sym);
rpnexpr[rpnptr++] = RPN_BANK;
rpnexpr[rpnptr++] = symptr & 0xFF;
rpnexpr[rpnptr++] = symptr >> 8;
rpnexpr[rpnptr++] = symptr >> 16;
rpnexpr[rpnptr++] = symptr >> 24;
}
break;
default:
rpnexpr[rpnptr++] = rpndata;
break;
}
}
