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-- FillFifo.vhd
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library IEEE;
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use IEEE.std_logic_1164.all;
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use IEEE.numeric_std.all;
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entity FillFifo is
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generic(
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Data_sz : integer range 1 to 32 := 16;
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Fifo_cnt : integer range 1 to 8 := 5
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);
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port(
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clk : in std_logic;
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raz : in std_logic;
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write : out std_logic_vector(Fifo_cnt-1 downto 0);
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reuse : out std_logic_vector(Fifo_cnt-1 downto 0);
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data : out std_logic_vector(Fifo_cnt*Data_sz-1 downto 0)
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);
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end entity;
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architecture ar_FillFifo of FillFifo is
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signal i : integer := 0;
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type etat is (eX,e0,e00);
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signal ect : etat;
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type Tbl is array(natural range <>) of std_logic_vector(Data_sz-1 downto 0);
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--constant TblA : Tbl (0 to 255) := (X"FFFF",X"0142",X"0282",X"03C2",X"04FF",X"0638",X"076E",X"08A0",X"09CC",X"0AF2",X"0C11",X"0D29",X"0E39",X"0F40",X"103E",X"1131",X"121A",X"12F8",X"13CA",X"1490",X"1549",X"15F5",X"1694",X"1724",X"17A7",X"181B",X"187F",X"18D5",X"191C",X"1953",X"197A",X"1992",X"199A",X"1992",X"197A",X"1953",X"191C",X"18D5",X"187F",X"181B",X"17A7",X"1724",X"1694",X"15F5",X"1549",X"1490",X"13CA",X"12F8",X"121A",X"1131",X"103E",X"0F40",X"0E39",X"0D29",X"0C11",X"0AF2",X"09CC",X"08A0",X"076E",X"0638",X"04FF",X"03C2",X"0282",X"0142",X"0000",X"FEBE",X"FD7E",X"FC3E",X"FB01",X"F9C8",X"F892",X"F760",X"F634",X"F50E",X"F3EF",X"F2D7",X"F1C7",X"F0C0",X"EFC2",X"EECF",X"EDE6",X"ED08",X"EC36",X"EB70",X"EAB7",X"EA0B",X"E96C",X"E8DC",X"E859",X"E7E5",X"E781",X"E72B",X"E6E4",X"E6AD",X"E686",X"E66E",X"E666",X"E66E",X"E686",X"E6AD",X"E6E4",X"E72B",X"E781",X"E7E5",X"E859",X"E8DC",X"E96C",X"EA0B",X"EAB7",X"EB70",X"EC36",X"ED08",X"EDE6",X"EECF",X"EFC2",X"F0C0",X"F1C7",X"F2D7",X"F3EF",X"F50E",X"F634",X"F760",X"F892",X"F9C8",X"FB01",X"FC3E",X"FD7E",X"FEBE",X"0000",X"0142",X"0282",X"03C2",X"04FF",X"0638",X"076E",X"08A0",X"09CC",X"0AF2",X"0C11",X"0D29",X"0E39",X"0F40",X"103E",X"1131",X"121A",X"12F8",X"13CA",X"1490",X"1549",X"15F5",X"1694",X"1724",X"17A7",X"181B",X"187F",X"18D5",X"191C",X"1953",X"197A",X"1992",X"199A",X"1992",X"197A",X"1953",X"191C",X"18D5",X"187F",X"181B",X"17A7",X"1724",X"1694",X"15F5",X"1549",X"1490",X"13CA",X"12F8",X"121A",X"1131",X"103E",X"0F40",X"0E39",X"0D29",X"0C11",X"0AF2",X"09CC",X"08A0",X"076E",X"0638",X"04FF",X"03C2",X"0282",X"0142",X"0000",X"FEBE",X"FD7E",X"FC3E",X"FB01",X"F9C8",X"F892",X"F760",X"F634",X"F50E",X"F3EF",X"F2D7",X"F1C7",X"F0C0",X"EFC2",X"EECF",X"EDE6",X"ED08",X"EC36",X"EB70",X"EAB7",X"EA0B",X"E96C",X"E8DC",X"E859",X"E7E5",X"E781",X"E72B",
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--X"E6E4",X"E6AD",X"E686",X"E66E",X"E666",X"E66E",X"E686",X"E6AD",X"E6E4",X"E72B",X"E781",X"E7E5",X"E859",X"E8DC",X"E96C",X"EA0B",X"EAB7",X"EB70",X"EC36",X"ED08",X"EDE6",X"EECF",X"EFC2",X"F0C0",X"F1C7",X"F2D7",X"F3EF",X"F50E",X"F634",X"F760",X"F892",X"F9C8",X"FB01",X"FC3E",X"FD7E",X"FEBE");
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constant TblA : Tbl (0 to 255) := (X"0001",X"0001",X"1FFF",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",
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X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",
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X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001");
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constant TblB : Tbl (0 to 255) := (X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",
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X"1FFF",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",
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X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001");
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constant TblC : Tbl (0 to 255) := (X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",
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X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",
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X"1FFF",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001");
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constant TblD : Tbl (0 to 255) := (X"1FFF",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",
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X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",
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X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001");
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constant TblE : Tbl (0 to 255) := (X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",
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X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",
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X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"1FFF",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001");
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begin
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process(clk,raz)
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begin
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if(raz='0')then
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i <= 0;
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Write <= (others => '1');
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Reuse <= (others => '0');
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ect <= e00;
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elsif(clk'event and clk='1')then
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case ect is
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when e00 =>
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Write <= (others => '0');
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ect <= e0;
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when e0 =>
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if(i=255)then
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Write <= (others => '1');
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Reuse <= (others => '1');
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ect <= eX;
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else
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i <= i+1;
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ect <= e0;
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end if;
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when eX =>
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null;
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end case;
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end if;
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end process;
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data <= TblE(i) & TblD(i) & TblC(i) & TblB(i) & TblA(i);
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end architecture;
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