汇编语言，设计一个点整式led的显示牌，显示，哈工大欢迎你。要求用led灯完成，根据字体外形决定显示阵列的长宽各排列多少个led灯。-Assembly language, to design a point Zhengshi led display cards, display, HIT welcome you. Requirements with led lights completed, length and width of the array are arranged according to the number of led lights outline fonts decision.