org 600h

	jmp end

	add [bx+si], al
	add al, al
	add ax, ax
	rep movsb
	cs xor word [bp], 0x7C00
	xor word [bp+04h], 0x7C00
	lock es xor word [04h], 0x7C00

	dw foo

end	hlt
	jmp end

foo	equ end+040h