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-- ------------------------------------------------------------------------

-- Copyright (C) 2010 Arif Endro Nugroho

-- All rights reserved.

-- 

-- Redistribution and use in source and binary forms, with or without

-- modification, are permitted provided that the following conditions

-- are met:

-- 

-- 1. Redistributions of source code must retain the above copyright

--    notice, this list of conditions and the following disclaimer.

-- 2. Redistributions in binary form must reproduce the above copyright

--    notice, this list of conditions and the following disclaimer in the

--    documentation and/or other materials provided with the distribution.

-- 

-- THIS SOFTWARE IS PROVIDED BY ARIF ENDRO NUGROHO "AS IS" AND ANY EXPRESS

-- OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

-- WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

-- DISCLAIMED. IN NO EVENT SHALL ARIF ENDRO NUGROHO BE LIABLE FOR ANY

-- DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

-- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

-- STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

-- ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

-- POSSIBILITY OF SUCH DAMAGE.

-- 

-- End Of License.

-- ------------------------------------------------------------------------

entity smap is

  port (

  lsfr             : in  bit_vector (511 downto 0);

  s0               : out bit_vector ( 31 downto 0);

  s1               : out bit_vector ( 31 downto 0);

  s2               : out bit_vector ( 31 downto 0);

  s3               : out bit_vector ( 31 downto 0);

  s4               : out bit_vector ( 31 downto 0);

  s5               : out bit_vector ( 31 downto 0);

  s6               : out bit_vector ( 31 downto 0);

  s7               : out bit_vector ( 31 downto 0);

  s8               : out bit_vector ( 31 downto 0);

  s9               : out bit_vector ( 31 downto 0);

  sa               : out bit_vector ( 31 downto 0);

  sb               : out bit_vector ( 31 downto 0);

  sc               : out bit_vector ( 31 downto 0);

  sd               : out bit_vector ( 31 downto 0);

  se               : out bit_vector ( 31 downto 0);

  sf               : out bit_vector ( 31 downto 0)

  );

end smap;

architecture phy of smap is

begin

--persistent connection

  s0               <= lsfr(511 downto 480);

  s1               <= lsfr(479 downto 448);

  s2               <= lsfr(447 downto 416);

  s3               <= lsfr(415 downto 384);

  s4               <= lsfr(383 downto 352);

  s5               <= lsfr(351 downto 320);

  s6               <= lsfr(319 downto 288);

  s7               <= lsfr(287 downto 256);

  s8               <= lsfr(255 downto 224);

  s9               <= lsfr(223 downto 192);

  sa               <= lsfr(191 downto 160);

  sb               <= lsfr(159 downto 128);

  sc               <= lsfr(127 downto  96);

  sd               <= lsfr( 95 downto  64);

  se               <= lsfr( 63 downto  32);

  sf               <= lsfr( 31 downto   0);

--persistent connection

end phy;