汇编语言实现的俄罗斯方块游戏，测试通过，设有三种不同的难度模式，A、D键控制方向，S键变换方块，tab是快速移动到底部-Assembly language implementation of Tetris game with three different difficulty modes, A, D keys to control the direction, S key to transform the box, tab is fast moving in the end the Department