接口8255A编程

口袋中有红，黄，蓝，白，黑5种颜色的球若干个。每次从口袋中取出3个不同颜色的球。问有多少种取法的C＋＋代码-pockets of red, yellow, blue, white and black colors of the five Ball number. Out of pocket every three different colors on the ball. Asked how many copying the C++ code

Windows环境下32位汇编语言程序设计配套书源码第8章-Windows Environment 32-bit assembly language programming book source package in Chapter 8

Release notes for emFile Version 2.40c

用sse2来实现dct变换，对于图像处理的速度有很大提高。-realizing dct translation with sse2 promotes the graph calculting speed

解码程序，用PIC16C57C来解PT2262-Decoding procedure, with PIC16C57C solved PT2262

在我们生活中，我们很容易通过这个叫张三，那个叫李四，另外一个是王五；那是因为每个人有不同的名子，我们就很快认出，同样，对于要通过一个按键来识别每种不同的功能，我们给每个不同的功能模块用不同的ID号标识，这样，每按下一次按键，ID的值是不相同的，所以单片机就很容易识别不同功能的身份了。-In our lives, we can easily Zhang through this three or four叫李that, another five-Wang it is because everyone has a different name, we quickly identified, and similarly, for a button to pass to identify the different functions of each, we have different functions to each module" s ID number with different logo, so, for every one button press, ID is not the same value, so it is easy to identify the different single-chip function hats.

S1实验板 AT89C51 12M晶振 乘法实验0FFH*03H=02FDH=756在P0口和P1口显示 -S1 board multiplication experiment AT89C51 12M crystal 0FFH* 03H = 02FDH = 756 in the P0 and P1 mouth I show

一个与一个低通滤波器结合可以用作简单、廉价的数/模转换器。其输出可用于驱动电压控制器件，或用于需要模/数转换器采样受控参数的反馈控制系统中。PWM常用于电机控制系统中。-A combination of a low-pass filter can be used as a simple, low-cost D/A converter. The output can be used to drive voltage control devices, or for the need for A/D converter sampling the controlled parameters of feedback control systems. PWM motor control commonly used in the system.

递归下降分析法让我们更加的能够懂得和了解词法分析的内容和注解。-Recursive descent analysis so that we can know and understand more of the lexical analysis of the content and annotations.

这是一个用汇编语言写的四位数码显示程序（先显示P，然后按键则显示相应的键码。）-This is a compilation of the language used to write the four digital display program (the first show that P, and then showed the corresponding button key code.)