assume cs:code ;安装程序,使用指令out和in指令 code segment start: mov ax,cs mov ds,ax mov si,offset sub1 mov ax,0020h mov es,ax mov di, mov cx,offset sub2 - offset sub1 cld rep movsb ;复制程序 mov ax, mov es,ax mov word ptr es:[7ch*],200h mov word ptr es:[7ch*+], mo…