ENTITY no4_x4 IS GENERIC ( CONSTANT area : NATURAL := 2500; CONSTANT cin_i0 : NATURAL := 12; CONSTANT cin_i1 : NATURAL := 12; CONSTANT cin_i2 : NATURAL := 12; CONSTANT cin_i3 : NATURAL := 12; CONSTANT rdown_i0_nq : NATURAL := 810; CONSTANT rdown_i1_nq : NATURAL := 810; CONSTANT rdown_i2_nq : NATURAL := 810; CONSTANT rdown_i3_nq : NATURAL := 810; CONSTANT rup_i0_nq : NATURAL := 890; CONSTANT rup_i1_nq : NATURAL := 890; CONSTANT rup_i2_nq : NATURAL := 890; CONSTANT rup_i3_nq : NATURAL := 890; CONSTANT tphl_i1_nq : NATURAL := 564; CONSTANT tphl_i0_nq : NATURAL := 656; CONSTANT tplh_i3_nq : NATURAL := 693; CONSTANT tphl_i2_nq : NATURAL := 739; CONSTANT tplh_i2_nq : NATURAL := 761; CONSTANT tplh_i1_nq : NATURAL := 768; CONSTANT tplh_i0_nq : NATURAL := 777; CONSTANT tphl_i3_nq : NATURAL := 816; CONSTANT transistors : NATURAL := 14 ); PORT ( i0 : in BIT; i1 : in BIT; i2 : in BIT; i3 : in BIT; nq : out BIT; vdd : in BIT; vss : in BIT ); END no4_x4; ARCHITECTURE behaviour_data_flow OF no4_x4 IS BEGIN ASSERT ((vdd and not (vss)) = '1') REPORT "power supply is missing on no4_x4" SEVERITY WARNING; nq <= not ((((i0 or i1) or i2) or i3)) after 1400 ps; END;