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[/] [fpuvhdl/] [trunk/] [fpuvhdl/] [adder/] [fplzc_fplzc.vhd] - Blame information for rev 5

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Line No. Rev Author Line
1 3 gmarcus
--
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-- VHDL Architecture HAVOC.FPlzc.FPlzc
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--
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-- Created:
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--          by - Guillermo
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--          at - ITESM, 08:25:27 07/20/03
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--
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-- Generated by Mentor Graphics' HDL Designer(TM) 2002.1b (Build 7)
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--
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-- hds interface_start
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LIBRARY ieee;
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USE ieee.std_logic_1164.all;
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USE ieee.std_logic_arith.all;
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ENTITY FPlzc IS
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   PORT(
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      word  : IN     std_logic_vector (26 DOWNTO 0);
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      zero  : OUT    std_logic;
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      count : OUT    std_logic_vector (4 DOWNTO 0)
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   );
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-- Declarations
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END FPlzc ;
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-- hds interface_end
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ARCHITECTURE FPlzc OF FPlzc IS
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BEGIN
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PROCESS(word)
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BEGIN
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        zero <= '0';
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--      IF (word="0000000000000000000000000000") THEN 
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--              count <= "11100";
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        IF (word(26 DOWNTO 0)="000000000000000000000000000") THEN
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           count <= "11011";
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                zero <= '1';
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        ELSIF (word(26 DOWNTO 1)="00000000000000000000000000") THEN count <= "11010";
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        ELSIF (word(26 DOWNTO 2)="0000000000000000000000000") THEN count <= "11001";
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        ELSIF (word(26 DOWNTO 3)="000000000000000000000000") THEN count <= "11000";
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        ELSIF (word(26 DOWNTO 4)="00000000000000000000000") THEN count <= "10111";
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        ELSIF (word(26 DOWNTO 5)="0000000000000000000000") THEN count <= "10110";
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        ELSIF (word(26 DOWNTO 6)="000000000000000000000") THEN count <= "10101";
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        ELSIF (word(26 DOWNTO 7)="00000000000000000000") THEN count <= "10100";
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        ELSIF (word(26 DOWNTO 8)="0000000000000000000") THEN count <= "10011";
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        ELSIF (word(26 DOWNTO 9)="000000000000000000") THEN count <= "10010";
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        ELSIF (word(26 DOWNTO 10)="00000000000000000") THEN count <= "10001";
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        ELSIF (word(26 DOWNTO 11)="0000000000000000") THEN count <= "10000";
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        ELSIF (word(26 DOWNTO 12)="000000000000000") THEN count <= "01111";
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        ELSIF (word(26 DOWNTO 13)="00000000000000") THEN count <= "01110";
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        ELSIF (word(26 DOWNTO 14)="0000000000000") THEN count <= "01101";
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        ELSIF (word(26 DOWNTO 15)="000000000000") THEN count <= "01100";
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        ELSIF (word(26 DOWNTO 16)="00000000000") THEN count <= "01011";
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        ELSIF (word(26 DOWNTO 17)="0000000000") THEN count <= "01010";
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        ELSIF (word(26 DOWNTO 18)="000000000") THEN count <= "01001";
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        ELSIF (word(26 DOWNTO 19)="00000000") THEN count <= "01000";
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        ELSIF (word(26 DOWNTO 20)="0000000") THEN count <= "00111";
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        ELSIF (word(26 DOWNTO 21)="000000") THEN count <= "00110";
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        ELSIF (word(26 DOWNTO 22)="00000") THEN count <= "00101";
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        ELSIF (word(26 DOWNTO 23)="0000") THEN count <= "00100";
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        ELSIF (word(26 DOWNTO 24)="000") THEN count <= "00011";
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        ELSIF (word(26 DOWNTO 25)="00") THEN count <= "00010";
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        ELSIF (word(26)='0') THEN count <= "00001";
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        ELSE
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                count <= "00000";
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        END IF;
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END PROCESS;
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END FPlzc;
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