ENTITY rom_dec_line01 IS
PORT (
  nck0    : in  BIT;
  nck1    : in  BIT;
  sel0    : in  BIT;
  sel1    : in  BIT;
  col     : in  BIT;
  line0   : out  BIT;
  line1   : out  BIT;
  vdd	  : in  BIT;
  vss	  : in  BIT
);
END rom_dec_line01;

ARCHITECTURE VBE OF rom_dec_line01 IS

BEGIN
  ASSERT (vdd and not (vss))
  REPORT "power supply is missing on rom_dec_line01"
  SEVERITY WARNING;

  line0 <= nck0 and sel0 and col;
  line1 <= nck1 and sel1 and col;

END;