该代码是直流电动机控制的汇编程序，在简单的单片机最小系统上即可实现对直流电机的控制。-This code is the direct current motivation control assembly program, in simple single chip minimize system can be realized on the control of a dc motor

该代码是继电器控制的汇编程序，在简单的单片机最小系统上即可实现对继电器的控制-This code is relay control assembly program, in simple single chip minimize system to relay of the control can be realized