【汇编语言】王爽第三版----------------检测点9.3

assume cs:code
code segment
start:
        mov ax,2000h
        mov ds,ax
        mov bx,0
        s:
                mov cl,[bx]
                mov ch,0
                inc cx    ;此条指令为题目要求补全的指令
                inc bx
        loop s
       
        ok:
                dec bx
                mov dx,bx
                mov ax,4c00h
                int 21h
code ends
end start