/**
* evaluate one initializer, add data to table
* @param symbol_name
* @param type
* @param identity
* @param dim
* @param tag
* @return
* returns size of initializer, or 0 for none (a null string is size 1)
*
*/
int init(char *symbol_name, int type, int identity, int *dim, TAG_SYMBOL *tag) {
int value, n;
/* A pointer is initialized as a word holding the address of the struct
or string etc that directly follows */
if(identity == POINTER) {
int x = getlabel();
gen_def_word();
print_label(x);
newline();
print_label(x);
output_label_terminator();
newline();
}
/* FIXME: may need to distinguish const string v data in future */
if(quoted_string(&n, NULL)) {
if((identity == VARIABLE) || !(type & CCHAR))
error("found string: must assign to char pointer or array");
*dim = *dim - n; /* ??? FIXME arrays of char only */
return n;
}
if (type & CCHAR)
gen_def_byte();
else
gen_def_word();
if (!number(&value) && !quoted_char(&value))
return 0;
*dim = *dim - 1;
output_number(value);
newline();
return (type & CCHAR) ? 1 : 2;
}
/**
* "case" label
*/
void docase(void) {
int val;
val = 0;
if (readswitch ()) {
if (!number (&val))
if (!quoted_char (&val))
error ("bad case label");
addcase (val);
if (!match (":"))
error ("missing colon");
} else
error ("no active switch");
}
int constant(int val[]) {
if (number (val))
gen_immediate ();
else if (quoted_char (val))
gen_immediate ();
else if (quoted_string (val)) {
gen_immediate ();
print_label (litlab);
output_byte ('+');
} else
return (0);
output_number (val[0]);
newline ();
return (1);
}