assume cs:code, ds:data

data segment
  db 128 dup (0)
data ends

code segment
			
	start:	mov ax, data
		mov ds, ax

		jmp far ptr s
	
		mov ax, 1000H
		mov bx, 1000H
		db 250 dup (0)

	s:	mov ax, 2000H

		mov ax,4C00H
		int 21H
		
code ends
end start

assume cs:code, ds:data

data segment
  db 128 dup (0)
data ends

code segment
			
	start:	mov ax, data
		mov ds, ax

		mov ax, 2000H
		jmp ax ;轉移目的地地址在暫存器中 	
		
		mov ax,4C00H
		int 21H
		
code ends
end start