i m sending u the code
im getting corrct result after func sim
but after post translation im getting last 8 bits incorrect
pls reply back soon
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;
entity mix_column is
Port ( clk : in std_logic;
rst : in std_logic;
en : in std_logic;
rdy : out std_logic;
dump : out std_logic_vector(7 downto 0);
data : out std_logic_vector(31 downto 0));
end mix_column;
architecture Behavioral of mix_column is
-------------------------------------------
component
llut --
8 bit LUT rising edge trigger
port (
addr: IN std_logic_VECTOR(7 downto 0);
clk: IN std_logic;
dout: OUT std_logic_VECTOR(7 downto 0);
en: IN std_logic;
nd: IN std_logic;
rfd: OUT std_logic;
rdy: OUT std_logic;
sinit: IN std_logic);
end component;
-------------------------------------------
component e_lut --falling
edge
trigger 8 bit LUT
port (
addr: IN std_logic_VECTOR(7 downto 0);
clk: IN std_logic;
dout: OUT std_logic_VECTOR(7 downto 0);
en: IN std_logic;
nd: IN std_logic;
rfd: OUT std_logic;
rdy: OUT std_logic;
sinit: IN std_logic);
end component;
signal temp_out : std_logic_vector(23 downto 0);
signal prod : std_logic_vector(15 downto 0);
signal temp_a, temp_b : std_logic_vector(7 downto 0);
signal inp_a, inp_b, inp_c, inp_d : std_logic_vector(7 downto 0);
signal result_a, result_b :std_logic_vector(7 downto 0);
signal enable_la, enable_lb, enable_lab, enable_eab, nd_l, nd_ea,
nd_eb :
std_logic;
signal rdy_la, rdy_lb, rdy_ea, rdy_eb : std_logic;
signal i, k : is integer range 0 to 15;
signal t, n, m, j : is integer range 0 to 3;
signal temp_buffer : is array(0 to 15) of std_logic_vector(7 downto
0);
signal mix, sinit, sinit_e,flg :std_logic;
begin
Alogtable_a : e_lut
port map (
addr => temp_a,
clk => clk,
dout => result_a,
en => enable_eab,
nd => nd_ea,
rdy => rdy_ea,
sinit => sinit_e);
Alogtable_b : e_lut
port map (
addr => temp_b,
clk => clk,
dout => result_b,
en => enable_eab,
nd => nd_eb,
rdy => rdy_eb,
sinit => sinit_e);
Logtable_a : llut
port map (
addr => inp_a,
clk => clk,
dout => prod(7 downto 0),
en => enable_lab,
nd => nd_l,
rdy => rdy_la,
sinit => sinit);
Logtable_b : llut
port map (
addr => inp_b,
clk => clk,
dout => prod(15 downto 8),
en => enable_lab,
nd => nd_l,
rdy => rdy_lb,
sinit => sinit);
process(clk,rst,en)
begin
if rst ='0' then
enable_lab <= '1';
i <= 0;
n <= 0;
j <= 0;
m <= 0;
nd_l <= '0';
mix <= '0';
rdy <= '0';
sinit <= '1';
inp_a <= (others => '0');
inp_b <= (others => '0');
data <= (others => '0');
temp_out <= (others => '0');
temp_buffer <=((0)=>x"1A",(1)=>x"48",(2)=>x"2B",
(3)=>x"D6",
(4)=>x"28",(5)=>x"9B",(6)=>x"DC",(7)=>x"54",
(8)=>x"B4",(9)=>x"B8",(10)=>x"85",(11)=>x"5F",
(12)=>x"AF",(13)=>x"F6",(14)=>x"A8",(15)=>x"66");
-- temp_buffer <=((0)=>(others => '0'),
(1)=>(others =>
'0'),
-- (2)=>(others => '0'),(3)=>(others =>
'0'),
--
(4)=>(others => '0'),(5)=>(others => '0'),
--
(6)=>(others => '0'),(7)=>(others => '0'),
--
(8)=>(others => '0'),(9)=>(others => '0'),
--
(10)=>(others => '0'),(11)=>(others => '0'),
--
(12)=>(others => '0'),(13)=>(others => '0'),
--
(14)=>(others => '0'),(15)=>(others => '0'));
elsif clk = '1' and clk'event then
if en ='0' then
sinit <= '0';
-- if mix = '1' then
nd_l <= '1';
if rdy_ea = '1' and rdy_eb = '1'
then
if n = 0 then
dump<= result_a xor
result_b
xor inp_c xor inp_d;
end if;
if n = 3 then
if j = 3 then
sinit <=
'1';
else
n <= 0;
j <= j
+ 1;
end if;
data(31 downto
24)
<= result_a xor result_b xor inp_c xor inp_d;
data(23 downto
0) <=
temp_out(23 downto 0);
rdy <= '1';
else
flg <= '1';
rdy <= '0';
n <= n + 1;
temp_out((8*n
+7)
downto 8*n) <= result_a xor result_b xor inp_c xor inp_d;
end if;
end if;
if i = 12 then
if m < 3 then
i <= 0;
m <= m + 1;
end if;
else
enable_la <= '1';
enable_lb <= '1';
enable_lab <= '1';
i <= i + 4;
end if;
inp_a <= temp_buffer(i + m);
inp_b <= temp_buffer(((m+1)mod
4)+i);
-- end if;
-- else
-- temp_buffer(i) <= data_in(7 downto 0);
-- temp_buffer(i+4) <= data_in(15 downto
8);
-- temp_buffer(i+8) <= data_in(23 downto
16);
-- temp_buffer(i+12) <= data_in(31 downto
24);
-- if i < 3 then
-- i <= i + 1;
-- else
-- mix <= '1';
-- i <= 0;
--
-- end if;
-- end if;
else
nd_l <= '0';
i <= 0;
n <= 0;
m <= 0;
mix <= '0';
rdy <= '0';
j <= 0;
sinit <= '1';
inp_a <= (others => '0');
inp_b <= (others => '0');
end if;
end if;
end process;
process(clk,rst,en)
begin
if rst ='0' then
enable_eab <= '1';
t <= 0;
k <= 0;
nd_ea <= '0';
nd_eb <= '0';
sinit_e <= '1';
inp_d <= (others => '0');
inp_c <= (others => '0');
temp_a <= (others => '0');
temp_b <= (others => '0');
elsif clk='0' and clk'event then
if en ='0' then
sinit_e <= '0';
if rdy_la = '1' or rdy_lb = '1' then
enable_eab <= '1';
if nd_ea = '1' or nd_eb = '1' then
inp_c <= temp_buffer(((t +
2)mod
4)+k);
inp_d <= temp_buffer(((t +
3)mod
4)+k);
if k = 12 then
if t < 3 then
k <= 0;
t <= t + 1;
end if;
else
k <= k + 4 ;
end if;
end if;
end if;
if rdy_la = '1' then
if temp_buffer(i) = 0 then
temp_a <= (others => '0');
nd_ea <= '0';
else
nd_ea <= '1';
if ( prod(7 downto 0) > x"E6")
then
temp_a <= x"19" +
prod(7
downto 0) + '1';
else
temp_a <= x"19" + prod(7
downto
0);
end if;
end if;
end if;
if rdy_lb = '1' then
if temp_buffer(i+1) = 0 then
temp_b <= (others => '0');
nd_eb <= '0';
else
nd_eb <= '1';
if ( prod(15 downto 8) >
x"FE") then
temp_b<= x"01" + prod(15
downto 8)
+ '1';
else
temp_b<= x"01" + prod(15
downto
8);
end if;
end if;
end if;
else
nd_ea <= '0';
nd_eb <= '0';
t <= 0;
k <= 0;
inp_d <= (others => '0');
inp_c <= (others => '0');
temp_a <= (others => '0');
temp_b <= (others => '0');
sinit_e <= '1';
end if;
end if;
end process;
end Behavioral;
