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First, the use of a keyboard display interface chip receive keys keys 8279, and...
一、 使用键盘显示接口芯片8279接收按键键值，并在七段数码管上显示出来，通过判断键值进入相应音乐播放处理程序。在音乐播放程序中，使用定时器/计数器8253的计数器2，使其工作在方式¬ ¬ 3―方波发生器，通过查表依次取出乐曲频率值送入计数器作为计数初值，经out2输出方波，驱动扬声器发出不同频率的声音，在每个音阶之间加入相应的延迟时间，即实现了音乐的播放。-First, the use of a keyboard display interface chip receive keys keys 8279, and Seven-Segment LED display, through to determine the corresponding music player keys to enter the treatment program. Procedures in the music player, use the timer/counter 2 counter 8253 to work in the way ? ? 3- square-wave generator, followed by out music through the look-up table values into the counter as a frequency count of the initial value, the output side out2 waves, driven loudspeakers of different frequency sound, in between each scale by adding the appropriate delay time, namely, the realization of the music player.
- 2023-03-17 05:55:03下载
- 积分：1
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80888的bios源码,是好东西,看看吧!
80888的bios源码,是好东西,看看吧!-8088 bios source code,good things.let s look at it.
- 2022-05-18 01:26:31下载
- 积分：1
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This is a performance management system for students, some function is not perfe...
这是一个学生成绩管理系统，有部分功能还不完善，以后会慢慢更新的：）-This is a performance management system for students, some function is not perfect, the future will gradually updated :)
- 2022-08-15 03:03:44下载
- 积分：1
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汇编语言写的输入任意个数，然后对这些书的排序输出对应的十进制与十六进制。我自己写的作业题。请管理员给多点的下载次数吧。...
汇编语言写的输入任意个数，然后对这些书的排序输出对应的十进制与十六进制。我自己写的作业题。请管理员给多点的下载次数吧。-Written in assembly language input arbitrary number, and then on the books of the sort output corresponding decimal and hexadecimal. I wrote it myself operating title. Please administrator to download the number of multi-point bar.
- 2022-03-26 09:17:19下载
- 积分：1
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智能小车对红外遥控器的编译过程比较容易…
关于红外遥控智能小车的汇编程序，简洁易懂，希望大家都来看啊！-Smart car on the infrared remote control of the compilation process easier to understand, ah, we want everyone to look at!
- 2022-01-25 22:16:35下载
- 积分：1
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a simple compilation of the audible language procedures keyboarding 1
一个简单的汇编语言编制的发声程序 键盘输入１到８的数据串后回车 程序按音乐发声 ９ 退出程序-a simple compilation of the audible language procedures keyboarding 1-8 after a string of data on the transport procedures music audible exit 9
- 2022-12-24 04:55:03下载
- 积分：1
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一个计算程序，能实现加、减、乘、除的计算。该程序接受
的是16进制数。
执行时，需在文件名后直接跟上计算表达式...
一个计算程序，能实现加、减、乘、除的计算。该程序接受
的是16进制数。
执行时，需在文件名后直接跟上计算表达式-a computer program can achieve, plus or minus, by, in addition to the calculation. The program is acceptable to the 16-band number. Implementation required in the file name directly to keep up with the formulas
- 2022-04-16 23:50:37下载
- 积分：1
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汇编语言程序设计，显示系统时间。
首先在数据段开辟一显示缓冲区，用来存储系统时间。调用BIOS中断，返回系统时间，并将来返回的二进制时间转换成ASCII码，...
汇编语言程序设计，显示系统时间。
首先在数据段开辟一显示缓冲区，用来存储系统时间。调用BIOS中断，返回系统时间，并将来返回的二进制时间转换成ASCII码，方便时间显示时的调用。分别将来小时数、分钟数、秒数存入显示缓冲区。通过写显存将时间显示出来。由于获取了的系统时间不会自动刷新，所以我们要设计成刷新的方式来不断获取系统的时间，这样就形成了会跳动的电子钟了。-Assembly language programming, display system time. First of all, open up one paragraph in the data display buffer for the storage system time. BIOS interrupt calls to return system time, and the future return of the binary time into ASCII code for the call time is displayed. Respectively, the future number of hours, minutes, seconds into the display buffer. Time by writing to memory will be displayed. As the access to the system time does not automatically refresh, so we need to refresh the way designed to keep on getting the system time, so that will be formed beating electronic o
- 2022-03-14 06:09:11下载
- 积分：1
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430产生38kzh波形，430产生38kzh波形
430产生38kzh波形，430产生38kzh波形-430 have 38kzh waveform 430 generated waveform 38kzh
- 2022-12-16 09:45:03下载
- 积分：1
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本程序有详细的注释,切运行无误 ,程序模块清晰,移植性好,可以实现动态时间的显示,...
本程序有详细的注释,切运行无误 ,程序模块清晰,移植性好,可以实现动态时间的显示,-the procedures detailed in the Notes, cut operating correctly, program modules clear, transplantation, and can achieve dynamic time,
- 2022-12-14 14:30:03下载
- 积分：1
