在PC机上进行的8250串口实验，采用汇编语言编写

用汇编语言开发的简单的计算器 无界面 键盘输入 -Developed in assembly language using a simple calculator-free interface for keyboard input

此程序为KEIL环境下开发的代码（开发环境备选里没有KEIL），功能在成功运行后可以播放“生日快乐”歌。所需要的开发硬件为AT89C51为主芯片的单片机。-This program is developed under the code in KEIL environment (development environment, where there is no alternative KEIL), features a successful running play " Happy Birthday" song. Required the development of hardware-based chip microcontroller AT89C51.

大家再看看吧-We look and see

这是我从别人那要来的一非常不错的购物系统源代码,喜欢大家喜欢-This is what I want to come from others that one of the very good to the system source code, like everyone likes

可编程并行接口 8255可编程并行接口。 利用高端的输入 哦也，玩的不是ASM是寂寞-no

多功能数字钟：在手动校时功能时，选择是调整小时，还是分 若长时间按住该键，还可使秒信号清零，用于精确调时 -Multi-function digital clock: In the manual, when the school functions, the option is to adjust hours, or minutes, if a long time hold the key, so that second signal can be cleared for accurate time transfer

这是一个无线遥控发射芯片的解码源程序，希望大家借鉴使用-This is a wireless remote control to launch source decoder chips, I hope everyone from the use of

用汇编语言写的，可以实现较大数的加法运算，带回显得显示结果-Written using assembly language, you can achieve a larger number of addition operations, it is back to show the results of

哈弗曼编码的实现，本人亲测完美运行。 编码内容：假设用于通信的电文仅由8个字母组成，字母在电文中出现的频率分别为7，19，2，6，32，3，21，10。试为这8个字母设计哈夫曼编码。 要求：这8个字母任意，输出各字母的编码值。 -huffman Tree

设计要求：编写程序实现利用定时器演奏乐曲。本程序通过调用通用GENSOUND程序发出各种声音演奏乐曲。选择p播放音乐“太湖船”，选择q退出。 -design requirements : preparation program using timer pieces. This procedure by calling the General GENSOUND procedures issued voices pieces. P choice to play music "Taihu boats," and choose q withdrawal.