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Clone from http://pc-instru.lpp.polytechnique.fr:5000/VHD_Lib

Few fixes....
Few fixes. Whole LFR simulation WIP.
martin - - Load All Authors

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r195:2a219a64fd0a martin
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FillFifo.vhd
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/ lib / lpp / lpp_memory / FillFifo.vhd
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-- FillFifo.vhd
library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.numeric_std.all;
entity FillFifo is
generic(
Data_sz : integer range 1 to 32 := 16;
Fifo_cnt : integer range 1 to 8 := 5
);
port(
clk : in std_logic;
raz : in std_logic;
write : out std_logic_vector(Fifo_cnt-1 downto 0);
reuse : out std_logic_vector(Fifo_cnt-1 downto 0);
data : out std_logic_vector(Fifo_cnt*Data_sz-1 downto 0)
);
end entity;
architecture ar_FillFifo of FillFifo is
signal i : integer := 0;
type etat is (eX,e0,e00);
signal ect : etat;
type Tbl is array(natural range <>) of std_logic_vector(Data_sz-1 downto 0);
--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",
--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");
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",
X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",
X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001");
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",
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",
X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001");
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",
X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"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",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001");
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",
X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",
X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001");
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",
X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",
X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"0001",X"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");
begin
process(clk,raz)
begin
if(raz='0')then
i <= 0;
Write <= (others => '1');
Reuse <= (others => '0');
ect <= e00;
elsif(clk'event and clk='1')then
case ect is
when e00 =>
Write <= (others => '0');
ect <= e0;
when e0 =>
if(i=255)then
Write <= (others => '1');
Reuse <= (others => '1');
ect <= eX;
else
i <= i+1;
ect <= e0;
end if;
when eX =>
null;
end case;
end if;
end process;
data <= TblE(i) & TblD(i) & TblC(i) & TblB(i) & TblA(i);
end architecture;