--
-- Rcsid[] = "$Id: parity1.vhd,v 2.1 1993/10/06 01:04:36 alex Exp $";
--

entity parity1 is
port(A, B, C, D, E, F, G, H : in bit;
        EVEN: out bit);
end;

architecture structure of parity1 is

signal L1,L2,L3,L4,L5,L6: bit;

begin
U1 : xor_gate generic map(2,2) port map (L1,A,B);
U2 : xor_gate generic map(2,2) port map (L2,C,D);
U3 : xor_gate generic map(2,2) port map (L3,E,F);
U4 : xor_gate generic map(2,2) port map (L4,G,H);
U5 : xor_gate generic map(2,2) port map (L5,L1,L2);
U6 : xor_gate generic map(2,2) port map (L6,L3,L4);
U7 : xnor_gate generic map(2,2) port map (EVEN,L5,L6);
end structure;

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