ENTITY rom_dec_line67 IS PORT ( nck6 : in BIT; nck7 : in BIT; sel6 : in BIT; sel7 : in BIT; col : in BIT; line6 : out BIT; line7 : out BIT; vdd : in BIT; vss : in BIT ); END rom_dec_line67; ARCHITECTURE VBE OF rom_dec_line67 IS BEGIN ASSERT (vdd and not (vss)) REPORT "power supply is missing on rom_dec_line67" SEVERITY WARNING; line6 <= nck6 and sel6 and col; line7 <= nck7 and sel7 and col; END;