王爽汇编语言第二版学习笔记之实验12

assume cs:code
code segment
start:
    mov ax,cs
    mov ds,ax
    mov si,offset do0
    
    mov ax,0
    mov es,ax
    mov di,200h
    
    mov cx,offset do0end-offset do0
    cld
    rep movsb
    
    mov ax,0
    mov ds,ax
    mov word ptr ds:[0],200H
    mov word ptr ds:[2],0H
    
    mov ax,4c00h
    int 21h
    
do0:
    jmp short do1
    db "divide error"
do1:
    mov ax,cs
    mov ds,ax
    mov si,202H
    
    mov ax,0b800H
    mov es,ax
    mov di,12*160+16*2
    
    mov cx,13
s:    mov al,[si]
    mov es:[di],al
    mov byte ptr es:[di+1],02H
    inc si
    add di,2
    loop s
    
    mov ax,4c00h
    int 21h
    
do0end:
    nop
    
code ends
end start