ENTITY oa2a22_x4 IS GENERIC ( CONSTANT area : NATURAL := 2500; CONSTANT cin_i0 : NATURAL := 8; CONSTANT cin_i1 : NATURAL := 8; CONSTANT cin_i2 : NATURAL := 8; CONSTANT cin_i3 : NATURAL := 8; CONSTANT rdown_i0_q : NATURAL := 810; CONSTANT rdown_i1_q : NATURAL := 810; CONSTANT rdown_i2_q : NATURAL := 810; CONSTANT rdown_i3_q : NATURAL := 810; CONSTANT rup_i0_q : NATURAL := 890; CONSTANT rup_i1_q : NATURAL := 890; CONSTANT rup_i2_q : NATURAL := 890; CONSTANT rup_i3_q : NATURAL := 890; CONSTANT tphh_i0_q : NATURAL := 519; CONSTANT tpll_i2_q : NATURAL := 596; CONSTANT tpll_i3_q : NATURAL := 619; CONSTANT tphh_i1_q : NATURAL := 624; CONSTANT tphh_i3_q : NATURAL := 644; CONSTANT tpll_i1_q : NATURAL := 669; CONSTANT tpll_i0_q : NATURAL := 696; CONSTANT tphh_i2_q : NATURAL := 763; CONSTANT transistors : NATURAL := 12 ); PORT ( i0 : in BIT; i1 : in BIT; i2 : in BIT; i3 : in BIT; q : out BIT; vdd : in BIT; vss : in BIT ); END oa2a22_x4; ARCHITECTURE behaviour_data_flow OF oa2a22_x4 IS BEGIN ASSERT ((vdd and not (vss)) = '1') REPORT "power supply is missing on oa2a22_x4" SEVERITY WARNING; q <= ((i0 and i1) or (i2 and i3)) after 1400 ps; END;