使用51单片机实现时钟设计的仿真，有源程序以及Proteus的仿真图，希望对大家有帮助。...

这个源代码是可运行的。-the source code can be run.

五个按键：关机off键，开机on键，五分钟定时键，十分钟定时键，二十分钟定时键，按相应的按键实现相应的功能，输出4HZ的方波-5 buttons: off off key, turn on key, five minutes from time to time key, 10 minutes from time to time key, 20 minutes from time to time, press the corresponding button to achieve the corresponding functions of the square wave output of 4HZ

我写的在DOS下枚举所有PCI设备的例子-I write DOS Enumerate all PCI devices example

BCD码相乘，汇编环境里没有对压缩BCD码相乘的调整，相当于作业吧！-BCD multiply, the compilation environment where no compression BCD multiplication of adjustment, which is equivalent to operating!

环保局污染设备在线控制系统 -EPA pollution control system equipment online

一款非常小的液晶显示屏，适合于便携式设备使用。-A very small LCD screen, suitable for use in portable devices.

用Masm计算平方根(例如sqtr(2))到6万5千位小数的程序.-with Masm calculating square root (eg sqtr (2)) to 60,005 decimal 1000 procedures.

用汇编语言实现的学生信息管理系统，可以添加、删除、修改、查看功能-Using assembly language to achieve the student information management system, can add, delete, modify, view the function

外部中断与Timer中断同时存在的实验 （单片机）-External interrupt Timer Interrupt-exist with the experimental

crout 比较经典 很好的一个方法 大家可以试一试-crout