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library ieee;
use ieee.std_logic_1164.all;
entity Front is
port (data,clk : in std_logic;
pQ,mQ,dQ : out std_logic);
end Front ;
architecture arc of Front is
signal s : std_logic ;
begin
process(clk) begin
if clk='1' and clk'event then
s <= not data;-- after 5ns;
end if ;
end process ;
pQ <= data and s ;
mQ <= not(data or s);
dQ <= not data xor s ;
end arc ;
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