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这是我最近制作的，想仍大家评论一下-This is my recently produced, we still would like to comment on the

（汇编源代码）编写一个简单的操作系统 By Vivek Mohan-(Compiled source code) to prepare a simple operating system By Vivek Mohan

说明：  masm source code of XSS to SQL v.01

单片机实验板自检程序， 汇编语言编写，可检测实验板上所有功能-Self-test procedures for single-chip board, assembly language development, can detect all the features of the experimental board

51单片机矩阵键盘扫描扫描之逐行扫描法.asm程序-51 single-chip scan matrix keyboard scanning method of progressive scan. Asm program

串口的用法，proteus仿真，程序，原理图全套。-Serial port usage, proteus simulation, procedures, a full set of schematics.

两个经典程序：显示系统时间，转换（大小写字母转换、二进制/八进制/十进制/十六进制间转换）-two classics : Display System, the conversion (case-insensitive conversion, binary/octal/decimal/hexadecimal switch)

通过汇编语言，采用 8253/8254 的 CNT2 控制扬声器，演奏音乐。(Assembly language, using the 8253/8254 of the the CNT2 control speaker to play music.)

算十万的阶乘,对于计算机和程序员都是一个挑战,本源程序实现了求大数的阶乘,是用汇编写的,相对速度很快,算十万的阶乘在我赛扬2.4,内存256的神舟笔记本上,用了20多分钟.算出得数写在一个TXT文件下,十万的阶乘结果,用记事本打开,都要好一会儿.-Count of thousands of factorial, for computers and programmers is a challenge to realize the source of the order of the factorial of large numbers, is written in the compilation of a relatively quick, and counting of thousands of factorial in my 2.4 Celeron, memory 256 Shenzhou notebook, spent more than 20 minutes.得数calculated to write in a TXT file, the thousands of factorial results, use Notepad to open, should a good moment.

To learn how to use MPLAB Integrated Development Environment (IDE) for code generation, simulation, and debugging. This code is a very simple program that sets up PORTC and PORTB I/Os and sends some values over these ports, and tries to read Port C and increments a counter and resets to a predetermined value when the counter rolls over to zero. All labels start in the first column, and the last line has an end directive. For detailed information, refer to the PIC18F452 datasheet on the course web page.