n IS 20 Vorgabe f"ur $n$ nFak IS $0 F"ur $n!$ i IS $1 Z"ahler LOC #100 Main SETL nFak,1 Startwert f"ur $n!$ SETL i,n Startwert f"ur Z"ahler Start MUL nFak,nFak,i SUB i,i,1 i herunterz"ahlen PBNZ i,Start TRAP 0,Halt,0