汇编语言的打字游戏，包括鼠标控制，直接写显存的图形界面，通过rs232连机，记录存档等功能。-An asm typing game. Includes features such as mouse control, direct video memory access, serial communication via rs232 and high score keeping and etc.

This example prints out "HELLO WORLD!" by writing directly to the video memory.

实验五 DOS功能调用 1.实验目的 （1）学会DOS中关于显示功能调用指令的用法； （2）领会修改显存方法显示字符。-Experiment 5 DOS function calls 1. Purpose (1) learn about the use of the DOS display function call instruction (2) understand the method of modifying video memory to display ch