基于BIOS功能调用的屏幕显示设计与仿真  

Design and simulation of screen displaying based on BIOS function call

作　　者：余华芳[1,2] 何永玲[1] 向征[1] 

机构地区：[1]广东药学院医药信息工程学院,广东广州510006 [2]中山大学信息科学与技术学院,广东广州510006

出　　处：《现代电子技术》2013年第4期29-32,共4页Modern Electronics Technique

基　　金：广东药学院师资队伍建设经费资助项目(52104109);广东药学院校级优质课程项目(52159505);校级教育研究课题(52157433)

摘　　要：为了使学生更好地理解并掌握BIOS功能调用与程序设计,达到良好的教学效果。利用BIOS中断功能调用指令,采用汇编语言编程,在Emu8086汇编语言开发软件下,借助字模提取软件,结合显示器字符、图形显示原理,将屏幕划分成二维坐标系统,设计开发出一款软件,实现显示器屏幕字符、图案的显示功能。实验结果证明,通过计算机设计与仿真,学生能够做到举一反三,在原有基础上设计开发出各种漂亮的图案和字样,牢固掌握了BIOS功能调用功能及编程方法。在此将电脑屏幕简化成二维坐标系统,结合字模提取软件后,相对于传统的屏幕点阵系统,编程难度大大降低了。In order to make students understand and master the BIOS function calls better, and achieve good teaching ef- fect, a software was designed to realize display functions of screen characters and patterns by using assembly language program- ming, matrix extraction software, display principle of character and graphics on the computer screen, and by dividing the com- puter screen into a two-dimensional coordinate system in Emu$086 assembly language development environment. Experimental results show that the students can master knowledge points very well through the design and simulation by computer. The innova- tion in this article is that the computer screen is simplified into a two-dimensional coordinate system, which can greatly reduce the programming difficulty bymeans of matrix extraction software, relative to traditional screen dot system.

关 键 词：BIOS Emu8086 字符显示仿真 显示器 汇编语言 

分 类 号：TN964.34[电子电信—信号与信息处理]