_symbol *update_table (char *symbol)
{
unsigned int index;
_symbol *entry;
index = hash(symbol);
entry = look_up_symbol(symbol, index);
if (entry == NULL) {
entry = write_symbol(symbol, SYMBOL, index);
push_symbol(entry);
}
return entry;
}
void set_local_vars(char *functor)
{
int total_locals;
int index = look_up_symbol(functor);
total_locals = (cur_counter - 1) - index - table[index].total_args;
table[index].total_locals = total_locals;
for (int j = total_locals, i = cur_counter - 1; j > 0; i--, j--) {
table[i].scope = cur_scope;
table[i].offset = j;
table[i].mode = LOCAL_MODE;
}
}
void set_scope_and_offset_of_param(char *s)
{
int total_args;
int index = look_up_symbol(s);
if (index < 0) perror("Error in function header");
else {
table[index].type = T_FUNCTION;
total_args = cur_counter - index - 1;
table[index].total_args = total_args;
for (int j = total_args, i = cur_counter - 1; i > index; i--, j--) {
table[i].scope = cur_scope;
table[i].offset = j + 2; // Const for local_var counts
table[i].mode = ARGUMENT_MODE;
fprintf(f_asm, " swi $r%d, [$fp + (-%d)]\n", j - 1, table[i].offset * 4 + 8);
}
}
}
