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