Syntax:
LIFO;It is used to pass a message from the EL to the beginning of the IL of a L type node. The first message in the EL of the L type node is passed to the beginning of the IL. The IL is formed in the order reverse to that of arrival (LIFO order).
It may be used only in L type nodes.
Example:
Cellar (L) :: FIFO;Messages coming to
Cellar are put in the EL in
order reverse to the arrival order (LIFO order).