OpenCores
URL https://opencores.org/ocsvn/fpuvhdl/fpuvhdl/trunk

Subversion Repositories fpuvhdl

[/] [fpuvhdl/] [trunk/] [fpuvhdl/] [adder/] [fplzc_fplzc.vhd] - Blame information for rev 8

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 3 gmarcus
--
2
-- VHDL Architecture HAVOC.FPlzc.FPlzc
3
--
4
-- Created:
5
--          by - Guillermo
6
--          at - ITESM, 08:25:27 07/20/03
7
--
8
-- Generated by Mentor Graphics' HDL Designer(TM) 2002.1b (Build 7)
9
--
10
-- hds interface_start
11
LIBRARY ieee;
12
USE ieee.std_logic_1164.all;
13
USE ieee.std_logic_arith.all;
14
 
15
 
16
ENTITY FPlzc IS
17
   PORT(
18
      word  : IN     std_logic_vector (26 DOWNTO 0);
19
      zero  : OUT    std_logic;
20
      count : OUT    std_logic_vector (4 DOWNTO 0)
21
   );
22
 
23
-- Declarations
24
 
25
END FPlzc ;
26
 
27
 
28
-- hds interface_end
29
ARCHITECTURE FPlzc OF FPlzc IS
30
BEGIN
31
 
32
PROCESS(word)
33
BEGIN
34
        zero <= '0';
35
--      IF (word="0000000000000000000000000000") THEN 
36
--              count <= "11100";
37
        IF (word(26 DOWNTO 0)="000000000000000000000000000") THEN
38
           count <= "11011";
39
                zero <= '1';
40
        ELSIF (word(26 DOWNTO 1)="00000000000000000000000000") THEN count <= "11010";
41
        ELSIF (word(26 DOWNTO 2)="0000000000000000000000000") THEN count <= "11001";
42
        ELSIF (word(26 DOWNTO 3)="000000000000000000000000") THEN count <= "11000";
43
        ELSIF (word(26 DOWNTO 4)="00000000000000000000000") THEN count <= "10111";
44
        ELSIF (word(26 DOWNTO 5)="0000000000000000000000") THEN count <= "10110";
45
        ELSIF (word(26 DOWNTO 6)="000000000000000000000") THEN count <= "10101";
46
        ELSIF (word(26 DOWNTO 7)="00000000000000000000") THEN count <= "10100";
47
        ELSIF (word(26 DOWNTO 8)="0000000000000000000") THEN count <= "10011";
48
        ELSIF (word(26 DOWNTO 9)="000000000000000000") THEN count <= "10010";
49
        ELSIF (word(26 DOWNTO 10)="00000000000000000") THEN count <= "10001";
50
        ELSIF (word(26 DOWNTO 11)="0000000000000000") THEN count <= "10000";
51
        ELSIF (word(26 DOWNTO 12)="000000000000000") THEN count <= "01111";
52
        ELSIF (word(26 DOWNTO 13)="00000000000000") THEN count <= "01110";
53
        ELSIF (word(26 DOWNTO 14)="0000000000000") THEN count <= "01101";
54
        ELSIF (word(26 DOWNTO 15)="000000000000") THEN count <= "01100";
55
        ELSIF (word(26 DOWNTO 16)="00000000000") THEN count <= "01011";
56
        ELSIF (word(26 DOWNTO 17)="0000000000") THEN count <= "01010";
57
        ELSIF (word(26 DOWNTO 18)="000000000") THEN count <= "01001";
58
        ELSIF (word(26 DOWNTO 19)="00000000") THEN count <= "01000";
59
        ELSIF (word(26 DOWNTO 20)="0000000") THEN count <= "00111";
60
        ELSIF (word(26 DOWNTO 21)="000000") THEN count <= "00110";
61
        ELSIF (word(26 DOWNTO 22)="00000") THEN count <= "00101";
62
        ELSIF (word(26 DOWNTO 23)="0000") THEN count <= "00100";
63
        ELSIF (word(26 DOWNTO 24)="000") THEN count <= "00011";
64
        ELSIF (word(26 DOWNTO 25)="00") THEN count <= "00010";
65
        ELSIF (word(26)='0') THEN count <= "00001";
66
        ELSE
67
                count <= "00000";
68
        END IF;
69
END PROCESS;
70
 
71
END FPlzc;
72
 

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.