assume cs:daima
daima segment
ks:mov si,0
mov ds,si
mov word ptr ds:[7*4],200h
mov word ptr ds:[7*4+2],0
mov si,daima
mov ds,si
mov si,offset ok;源地址
mov di,0
mov es,di
mov di,200h;目的地址
mov cx,okend-ok
cld
rep movsb
mov ax,4c00h
int 21...