二进制计算器,位运算,计算器

MOV SP，#35H；更改堆栈指针内存位置

本程序需在DOS下运行。每运行一次可执行程序random.exe，即可显示任意两个 16进制数的加法或减法表达式及其运算结果。在减法运算中，如果被减数小于减数，显示 “Divide Overflow”的提示信息。-the process required under the DOS operating. Every time running executable random.exe. two shows can be arbitrary number of 16 Decimal Addition or subtraction expression and Operational results. The subtraction operation, if less than subtrahend minuend, shows that the "Divide Overflow" message.

在集成电路中，通常采用T型解码网络实现数字量往模拟的转换，再利用运算放大器完成模拟电流变为模拟电压的转换。所以，要把一个数字量变为模拟电压，实际上需要两个环节，先把数字量变为模拟电流，这是由D/A转换器完成的；再将模拟电流变成模拟电压，这是由运算放大器完成的。有时D/A转换器芯片只包含前一个环节，有些D/A转换器则包含两个环节，用前一种芯片时，需要外接运算放大器才能得到模拟电压。-In integrated circuits, the usual T-decode digital networks to analog conversion, and then complete the simulation of the use of op-amp current into the analog voltage conversion. Therefore, it is necessary to become a digital simulation of voltage, in fact, need two links, first into a digital simulation of currents, this is determined by D/A converters completed then simulate current into the analog voltage, this is determined by computing completed amplifier. Sometimes D/A converter chip contains only a part before, some D/A converter includes two aspects, before a chip, the need for external op-amp voltage can be simulated.

我们汇编语言的一个大作业,一个主程序,调用三个模块-a major operation, a main program, called three modules

8051核的DES源代码 使用C语言写的基于51核的DES原码，变量定义使用汇编。占用了130字节RAM，比我所见到的包括汇编编写的都要快。 -8051 nuclear DES use source code written in C language based on the 51 nuclear DES original code, the use of variable definition compilation. Occupy the 130 byte RAM, than I have seen in the preparation of the compilation must fast.

汇编语言编写DS1302充电时钟,time是多字节读写,timexie是多字节写,timedu是单字节读-Compiled languages charge DS1302 clock, time is a multi-byte read and write, timexie are multi-byte write, timedu is single-byte read

进制转换，将数字以任意进制（2，8，10，16）输入，选择另一个进制（2，8，10，16）输出。-Hexadecimal conversion, digital to arbitrary M-ary (2,8,10,16) input, select another band (2,8,10,16) output.

用汇编语言实现加法，从1到N依次相加。比如N设为100，则结果为-Compilation of experiments with the addition

这个程序主要功能是简单的动态进行创建Access数据源名-Main function of this procedure is simple to create a dynamic Access data source name

这个程序是软时钟程序,如果你不用硬时钟,可以使用这个程序-This procedure is soft clock procedure, if you do not have the hardware clock, you can use this procedure