基本的开方的小程序，学习时所写，算不的好，是本人学习汇编的习作，请多指教。...

最新的词法分析器啊，最新版的，里面包括了识别c的关键字的。-Ah latest lexical analyzer, the latest version, which includes the identification of keywords c.

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

1) 东西方向车辆放行20秒钟。即东西方向的绿灯和南北方向的红灯同时点亮20秒钟； 2) 20秒钟后，东西方向的黄灯闪烁2秒钟，以警示车辆将切换红绿灯。此时南北方向仍维持红灯点亮。在南北方向亮红灯期间，在2位数码管上显示计数值（每秒减1），从20减至01。 3) 东西方向的黄灯闪烁2秒钟后，转为南北方向放行20秒钟。即东西方向的红灯和南北方向的绿灯同时点亮20秒钟； 4) 南北方向放行20秒钟后，转为南北方向的黄灯闪烁2秒钟，以警示将切换红绿灯。此时东西方向仍维持红灯点亮。 5) 南北方向的黄灯闪烁2秒钟后，再转为东西方向车辆放行20秒钟。如此循环重复。 -1) direction vehicle release 20 seconds. What is the direction of red and green light at 20 seconds, 2) 20 seconds later, the yellow lights flashing warning vehicles with 2 seconds, switch to the traffic lights. This is still remain red light north-south direction. In the south during the red light, in the direction of the digital display tube of 2 per plan (minus 1), from 20 to 2001. 3) the yellow lights flashing direction to 2 seconds later, the south direction release 20 seconds. What is the direction of the north-south direction of red and green and light 20 seconds, 4) north-south direction after 20 seconds to release the north-south direction, yellow lights flashing warning, with 2 secon

可执行文件向二进制文件的转换。能够将所有可执行文件转换成相应的二进制文件。-executable binary files to the conversion. All can be converted into executable files corresponding to the binary files.

汇编语言实现的接口8255A编程 一个很好用的代码  上课实验时写的

这是一个IO口模拟串口，采用51汇编代码编写的程序-This is a simulation of serial IO port, using a program written in assembly code 51

的源代码，intel汇编的优秀参考书。赶快下载。- The source code, compile the intel excellent reference books. Quickly download.

（1） 显示北京时间； （2） 能够校准时间； （3） 使用汇编语言； （4） 时、分、秒之间以及年、月、日间以小数点分隔； （5） 显示公历日期 （6） 能够校准日期 （7） 运动秒表 （8） 闹钟功能 （9） 整点报时功能 （10） 自动/手动进入休眠状态 -(1) shows that Beijing (2) to the calibration time (3) the use of assembly language (4) hours, minutes and seconds, as well as year, month, day to decimal separated (5) shows that the Gregorian calendar date (6 ) to the calibration date (7) Sports Stopwatch (8), alarm clock function (9) The whole point timekeeping function (10) Auto/Manual to enter hibernation

本程序由国外的Vulture大哥编写，并公布了源码，这个是他95年的一个作品，可以说是在当时是非常成功的！ 这个程序是巧妙的利用了坐标的不断变化，从而实现了由星星构成的箱子3D转动！ 为了尊重版权，本人未对源码注释进行翻译，这样做也可以让国内的汇编爱好者自己琢磨国外的汇编编程的思维-This program prepared by the foreign Vulture brother, and announced the source code, this is his 95 years, a work can be said that at that time was very successful! The program is clever use of changing coordinates in order to achieve a box formed by the stars, 3D rotation! In order to respect copyright, I did not comment on the source code translation, this would also enable the compilation of country fans on her own way of thinking outside of the compilation of programming

MCS51四字节除法运算程序，可计算出四字节的商和四字节的余数。-mcs51 division operation routine for tetra-byte ,may calculate both quotient of tetra-byte and remaining of tetra-byte