微机原理课程设计—电子琴的设计.doc

课程设计任务书 学生姓名： 刘沛 专业班级： 电气0901 指导教师： 张 锐 工作单位： 自动化学院 题 目: 计算机电子琴软件软件设计 初始条件： 1.用于调试程序的IBM兼容PC机一台； 2.安装DOS/WIN98操作系统或运行于DOS/ WIN98兼容方式； 3. EDIT 等文本编辑器输入80x86汇编程序，MASM 5.0编译及链接程序。 要求完成的主要任务: （包括课程设计工作量及其技术要求，以及说明书撰写等具体要求） 1.使用汇编语言设计一个运行于计算机的电子琴软件，软件应实现弹奏功或演奏。其中弹奏：用户每按一琴键弹奏相应音符；演奏：按下某键后自动弹奏预存琴谱功能；还可以附加变调、变速和记录创作等其它功能。 2.说明书撰写格式应符合《课程设计说明书统一书写格式》。 时间安排： 1.程序框图设计，3天 2.编程，4天 3.调试，3天 4.编写设计报告，4天 指导教师签名： 年 月 日 系主任（或责任教师）签名： 年 月 日 目录 摘要································································ = 1 \* ROMAN I 1 设计任务和思路····················································1 1.1设计任务······················································1 1.2设计思路······················································1 2更件部分工作原理··················································2 2.1 8255工作原理·················································2 2.2 8253工作原理·················································2 3程序流程图························································4 3.1主程序流程图··················································4 3.2演奏子程序流程················································5 3.3音乐播放子程序流程·········??··································6 3.4弹奏子程序流程图··············································6 3.5发音子程序流程图 ·············································7 4各部分功能实现说明················································7 4.1 发音部分功能实现··············································7 4.2 变调功能的实现················································8 4.3 弹奏功能的实现················································8 4.4演奏功能的实现················································9 4.4.1歌曲选择功能实现········································9 4.4.2 音乐播放功能实现········································9 5 程序运行结果·····················································10 结束语·····························································12 参考文献···························································13 附录 程序清单····································