to-determine-a-leap-year

说明：  三、 实验要求 1. 使用 PL/0 语言编写程序，实现输出斐波那契数列前 20 项数值。 2. 从 PL/0 编译程序源码中抽出词法分析部分，构建 PL/0 独立词法分析程序。功能：输入为 PL/0 源程序， 输出为单词符号的序列；对于标识符和无符号整数，显示单词种别和单词自身的值两项内容；对于其他单词符 号，仅显示其单词种别。 3. 使用 AutoFlowchart 画出独立词法分析程序的程序流程图，并分析每部分的功能和特点。(Iii. Experimental requirements 1. Use PL/0 language to write programs to output the first 20 values of Fibonacci sequence. 2. Extract the part of lexical analysis from PL/0 compiler source code, and build PL/0 independent lexical analysis program. Function: Input as PL/0 source program, Output a sequence of word symbols; For identifiers and unsigned integers, the word class and the value of the word itself are displayed. For other word characters , showing only its word class. 3. Use AutoFlowchart to draw the program flow chart of the independent lexical analysis program and analyze the functions and characteristics of each part.)

lex文法的源程序(编译原理相关)-lex grammar of the source (compiler principles relevant)

水位可调节的汇编程序与现成的软件仿真，可以打开模拟调试与学习，注释详细(Assembler level adjustable shelf software with the simulation, simulation debugging and learning can open, detailed notes)

这 是 一 篇 基 于 C 语 言 的 单 片 机 电 子 时 钟 的 程 序-This is a C language-based single-chip electronic clock procedures

,片选接到p1.5 复位端 p1.4 中断端接到 int0 82c250工作在斜率模式下 ，RS 接51k电阻到地。 2，SJA1000与82C250的接口，逻辑上为SJA1000输出0（显性位），表现为低点平输出给82C250，则82C250输出 差分的低电平。SJA1000输出1（隐性位），表现为高电平或悬空输出给82C250，则82C250输出悬空状态。 3,周立功的中SJA_BCANCONF.ASM中对输出控制寄存器 的TX0的输出 极性的位的定义不对。 还有里面定义有接收错误标志码，不知道何时用。-, The election received a P1.5-chip client p1.4 interrupt reset int0 82c250 client received in the slope mode, RS then 51k resistor to ground. 2, SJA1000 with the 82C250 interface, logic for SJA1000 Output 0 (dominant bit), showing low level output to the 82C250, while the low-level differential output 82C250. SJA1000 Output 1 (recessive), and the performance of the output is high or left vacant to the 82C250, the vacant state 82C250 output. 3, Zhou Ligong in the SJA_BCANCONF.ASM of output control register TX0 output polarity bit the definition of wrong. Inside the definition also has to receive error flag code, I do not know when to use.

说明：  USART for atmega8 works

单片机LCD程序，用汇编语言写的，里面有详细的源代码和电路图-Single-chip LCD procedures, using assembly language to write, and there are detailed source code and circuit diagram

密码锁 密码锁控制程序 汇编 实现-mimasuo

分别用C语言和汇编语言实现冒泡排序，有汇编语言实现时的流程图，通过比较运行的时间，体现汇编的高效(This is a best program which can help you learn huibain is more better.)

Lattice boltzmann method 方柱扰流代码，C++(LBM Code for Square Column Spoiler)