编写中断程序必加入这个语句

小燕双飞GO

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 word ptr es:[0*4],200h         ;必须加入红字的这两句代码，向内存0单元写入200H，02单元写入段地址0000
mov word ptr es:[0*4+2],0000
mov cx,offset do0end-offset do0
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