Return the display of the instruction

            :rtype: string

def show_buff(self, pos):
        """
            Return the display of the instruction

            :rtype: string
        """
        buff = self.get_name() + " "
        for i in range(0, len(self.keys)):
            buff += "%x:%x " % (self.keys[i], self.targets[i])

        return buff