public override string ToString()
{
var sb = new StringBuilder();
sb.Append("prog_counter=" + prog_counter + " ");
if (prog_counter < statements.Count)
{
sb.AppendLine(statements[prog_counter].ToString());
}
else
{
sb.AppendLine("End of Program");
}
sb.Append(symbol_table.ToString());
return(sb.ToString());
}