回溯法实现最小圆排列问题

matlab 源代码，有兴趣看看啊，很有用的，学习必备-MATLAB

用汇编语言实现的可以播放歌曲的是程序，在51单片机上配合蜂鸣器可以播放梁祝的歌曲。-Using assembly language to achieve that can play songs that procedure, in 51 single-chip buzzer can play with the song Butterfly Lovers.

这是DALAS公司的温度传感器ds1820 的汇编程序。-DALAS This is the temperature sensor ds1820 the compilation process.

一个打字练习的汇编源程序,并且可以计时-typing exercises a compilation of source code, as well as time

实现高级电子琴的程序，并实现若干扩展功能。 基本功能：用8257键盘输入对应的七个音阶，通过实验箱的喇叭发出声音，并通过七段数码管显示输入音阶； 扩展功能：1、录音：记录所弹奏曲目 2、放录音：任意时刻重放最新记录曲目 3、在程序中可预设一曲目，按一键实现播放该曲目。 4、在播放录制曲目或预设曲目时，按8279键盘上任意键可以暂停播放，再按一次从暂停处继续播放。 5、程序运行时有友好的用户介面 -Realize high-level organ of the process and realize a number of extensions. Basic functions: keyboard 8257 corresponds with the seven scale, through experimental sound speaker boxes, and through Seven-Segment LED display input scale the expansion of functions: one, sound recording: Record the playing pieces 2, released recordings: any time replay music 3-to-date records, in the proceedings may be the default one track, according to realize one key to play the tracks. 4, recording tracks in the player or the default program, press any key on the keyboard 8279 can pause playback, press once again to continue from the suspended players. 5, is running friendly user interface

Registry Edit Sample code

用80C51单片机实现zlg7290扫描键盘并在LED进行显示的汇编语言程序-Using 80C51 MCU zlg7290 scanning the keyboard and LED display of the assembly language program

1，消除按键的抖动问题 因为按键在闭合或断开过程中出现一段抖动期，主要由于按键的不稳定性引起的，这时会呈现一串页脉冲，时间的长短和开关的机械特性有关。一般在5ms~10ms之间。为保证CPU对键的一次闭合作一次处理，必须去抖动。在键的稳定闭合或断开时读键的状态。 2，据EICE51原理图编写并调试一个键输入子程序，其功能为判断键盘上有无键输入，若有键入，作去抖动处理后，计算输入键的键号送累加器A。-eliminate jitter button issues as keys or disconnect the closure process for some jitter period, mainly due to the instability of the keys to the cause, then it will result in a bunch of pages pulse, the duration and switches on the mechanical properties. General ~ 10ms between 5ms. To ensure that the CPU in a pair of keys a close cooperation, must go jitter. The key to the stability closed or disconnected when reading the key state. 2, EICE51 schematics prepared and debug a key input subroutine, and its function of determining whether keys on the keyboard input, if typing for to handle jitter, the admission of Bond, Bond sent accumulator A.

这是一个汇编的程序包，所包含了一般的汇编初学者所要参考的汇编小程序-This is a compilation of the package, which contains a compilation of the general beginners by reference to the compilation of small programs

应用背景 本人原创STM32汇编实现LCD的显示，目前搜遍全球也没有STM32汇编实现LCD显示的代码。 编译器 ARM-NONE-EABI   ，是在LINUX下编译的。 代码很复杂不容易看懂，我用了很长时间才写出来，大概有1000行汇编代码，写了半个多月才写出来，真是不容易啊。 程序包括IO设置 时钟初始化，NVIC中断设置，定时器，温度传感器等，红外遥控， 然后在LCD上显示 关键技术 初始化代码 shizhong:     ldr r0, = 0x40021000     ldr r1, = 0x14D83     str r1, [r0] gsszbz:     ldr r2, [r0]     ldr r1, = 0x20000     tst r1, r2           @高速时钟标志位                bne rccchushihua     b gsszbz rccchushihua:     ldr r0, = 0x40022000     mov r1, # 0x00000032     str r1, [r0]       &n