<<4top.altexpand>> <> <<>> ("4top" N (DuLL1 L) (clkGen) (cntr) (shifter I (SRWC0 I (First I (Inv) (Pass)) (second I (Inv) (Pass))) (SRWC1 I (First I (Inv) (Pass)) (second N (Inv) (Pass))) (SRWC2 I (First N (Inv) (Pass)) (second I (Inv) (Pass))) (SRWC3 I (First N (Inv) (Pass)) (second N (Inv) (Pass))) ) )