MASM-打字练习程序

;   CLEARSCREAM 0,17H,12,14,14,64
        CLEARSCREAM 0,70h,13,18,13,35
        CLEARSCREAM 0,70H,13,43,13,60
        
        SETGB 0,4,14
        SETGBTYPE 0,24

        mov di,0
        mov cx,0ffffh
AD:     mov dl,addr[di]
        cmp dl,''''