cseg	segment
	assume	cs:cseg,ds:cseg
	org	100h
start:	xor	ax,ax
	mov	es,ax
	mov	bx,472h
	mov	word ptr es:[bx],0
	pushf
	mov	ax,0f000h
	push	ax
	mov	ax,0fff0h
	push	ax
	iret
cseg	ends
end	start