ثلاث طرق : لنقل 100 من موقع 400 الى 600

1- using  instruction jump
org 100h

mov ax,0f000h

mov ds,ax

mov si,0400h 

mov di,0600h

mov cx,64h             

labelx:

mov ah,[si]  

mov [di],ah

inc si

inc di 

dec cx

jnz labelx 

hlt

2-using instruction loop 

org 100h

mov ax,0f000h
mov ds,ax
mov si,0400h
mov di,0600h
mov cx,64h
nextpt:
[mov ah,[si
mov [di],ah
inc si
inc di

 loop nextpt  //not need increment cx because loop do that

hlt

3-using srting instruction and loop

org 100h

mov ax,0f000h
mov ds,ax 
mov es,ax
mov si,0400h
mov di,0600h
mov cx,64h 
cld  
:nextpt 

  movsb //di<--si , inc si and di 

loop nextpt

hlt

note : 

if want to insert number in location 600 and use program put number in location 400 :

mov [0400h],05h

if want to insert number in all location but instruction in loop

label:

mov [si],05h // can [si+2] if want to but number from location 402 and up 

loop label