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[/] [structural_vhdl/] [trunk/] [operation_mode/] [xor64.vst] - Rev 4

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-- VHDL structural description generated from `xor64`
--              date : Sat Sep  1 20:43:41 2001


-- Entity Declaration

ENTITY xor64 IS
  PORT (
  a : in BIT_VECTOR (0 TO 63);  -- a
  b : in BIT_VECTOR (0 TO 63);  -- b
  o : out BIT_VECTOR (0 TO 63); -- o
  vdd : in BIT; -- vdd
  vss : in BIT  -- vss
  );
END xor64;

-- Architecture Declaration

ARCHITECTURE VST OF xor64 IS
  COMPONENT xr2_x1
    port (
    i0 : in BIT;        -- i0
    i1 : in BIT;        -- i1
    q : out BIT;        -- q
    vdd : in BIT;       -- vdd
    vss : in BIT        -- vss
    );
  END COMPONENT;

  COMPONENT latch
    port (
    a : in BIT; -- a
    en : in BIT;        -- en
    b : inout BIT;      -- b
    vdd : in BIT;       -- vdd
    vss : in BIT        -- vss
    );
  END COMPONENT;

  SIGNAL en : BIT;      -- en
  SIGNAL i_0 : BIT;     -- i 0
  SIGNAL i_1 : BIT;     -- i 1
  SIGNAL i_2 : BIT;     -- i 2
  SIGNAL i_3 : BIT;     -- i 3
  SIGNAL i_4 : BIT;     -- i 4
  SIGNAL i_5 : BIT;     -- i 5
  SIGNAL i_6 : BIT;     -- i 6
  SIGNAL i_7 : BIT;     -- i 7
  SIGNAL i_8 : BIT;     -- i 8
  SIGNAL i_9 : BIT;     -- i 9
  SIGNAL i_10 : BIT;    -- i 10
  SIGNAL i_11 : BIT;    -- i 11
  SIGNAL i_12 : BIT;    -- i 12
  SIGNAL i_13 : BIT;    -- i 13
  SIGNAL i_14 : BIT;    -- i 14
  SIGNAL i_15 : BIT;    -- i 15
  SIGNAL i_16 : BIT;    -- i 16
  SIGNAL i_17 : BIT;    -- i 17
  SIGNAL i_18 : BIT;    -- i 18
  SIGNAL i_19 : BIT;    -- i 19
  SIGNAL i_20 : BIT;    -- i 20
  SIGNAL i_21 : BIT;    -- i 21
  SIGNAL i_22 : BIT;    -- i 22
  SIGNAL i_23 : BIT;    -- i 23
  SIGNAL i_24 : BIT;    -- i 24
  SIGNAL i_25 : BIT;    -- i 25
  SIGNAL i_26 : BIT;    -- i 26
  SIGNAL i_27 : BIT;    -- i 27
  SIGNAL i_28 : BIT;    -- i 28
  SIGNAL i_29 : BIT;    -- i 29
  SIGNAL i_30 : BIT;    -- i 30
  SIGNAL i_31 : BIT;    -- i 31
  SIGNAL i_32 : BIT;    -- i 32
  SIGNAL i_33 : BIT;    -- i 33
  SIGNAL i_34 : BIT;    -- i 34
  SIGNAL i_35 : BIT;    -- i 35
  SIGNAL i_36 : BIT;    -- i 36
  SIGNAL i_37 : BIT;    -- i 37
  SIGNAL i_38 : BIT;    -- i 38
  SIGNAL i_39 : BIT;    -- i 39
  SIGNAL i_40 : BIT;    -- i 40
  SIGNAL i_41 : BIT;    -- i 41
  SIGNAL i_42 : BIT;    -- i 42
  SIGNAL i_43 : BIT;    -- i 43
  SIGNAL i_44 : BIT;    -- i 44
  SIGNAL i_45 : BIT;    -- i 45
  SIGNAL i_46 : BIT;    -- i 46
  SIGNAL i_47 : BIT;    -- i 47
  SIGNAL i_48 : BIT;    -- i 48
  SIGNAL i_49 : BIT;    -- i 49
  SIGNAL i_50 : BIT;    -- i 50
  SIGNAL i_51 : BIT;    -- i 51
  SIGNAL i_52 : BIT;    -- i 52
  SIGNAL i_53 : BIT;    -- i 53
  SIGNAL i_54 : BIT;    -- i 54
  SIGNAL i_55 : BIT;    -- i 55
  SIGNAL i_56 : BIT;    -- i 56
  SIGNAL i_57 : BIT;    -- i 57
  SIGNAL i_58 : BIT;    -- i 58
  SIGNAL i_59 : BIT;    -- i 59
  SIGNAL i_60 : BIT;    -- i 60
  SIGNAL i_61 : BIT;    -- i 61
  SIGNAL i_62 : BIT;    -- i 62
  SIGNAL i_63 : BIT;    -- i 63
  SIGNAL i0 : BIT;      -- i0
  SIGNAL i1 : BIT;      -- i1
  SIGNAL i10 : BIT;     -- i10
  SIGNAL i11 : BIT;     -- i11
  SIGNAL i12 : BIT;     -- i12
  SIGNAL i13 : BIT;     -- i13
  SIGNAL i14 : BIT;     -- i14
  SIGNAL i15 : BIT;     -- i15
  SIGNAL i16 : BIT;     -- i16
  SIGNAL i17 : BIT;     -- i17
  SIGNAL i18 : BIT;     -- i18
  SIGNAL i19 : BIT;     -- i19
  SIGNAL i2 : BIT;      -- i2
  SIGNAL i20 : BIT;     -- i20
  SIGNAL i21 : BIT;     -- i21
  SIGNAL i22 : BIT;     -- i22
  SIGNAL i23 : BIT;     -- i23
  SIGNAL i24 : BIT;     -- i24
  SIGNAL i25 : BIT;     -- i25
  SIGNAL i26 : BIT;     -- i26
  SIGNAL i27 : BIT;     -- i27
  SIGNAL i28 : BIT;     -- i28
  SIGNAL i29 : BIT;     -- i29
  SIGNAL i3 : BIT;      -- i3
  SIGNAL i30 : BIT;     -- i30
  SIGNAL i31 : BIT;     -- i31
  SIGNAL i32 : BIT;     -- i32
  SIGNAL i33 : BIT;     -- i33
  SIGNAL i34 : BIT;     -- i34
  SIGNAL i35 : BIT;     -- i35
  SIGNAL i36 : BIT;     -- i36
  SIGNAL i37 : BIT;     -- i37
  SIGNAL i38 : BIT;     -- i38
  SIGNAL i39 : BIT;     -- i39
  SIGNAL i4 : BIT;      -- i4
  SIGNAL i40 : BIT;     -- i40
  SIGNAL i41 : BIT;     -- i41
  SIGNAL i42 : BIT;     -- i42
  SIGNAL i43 : BIT;     -- i43
  SIGNAL i44 : BIT;     -- i44
  SIGNAL i45 : BIT;     -- i45
  SIGNAL i46 : BIT;     -- i46
  SIGNAL i47 : BIT;     -- i47
  SIGNAL i48 : BIT;     -- i48
  SIGNAL i49 : BIT;     -- i49
  SIGNAL i5 : BIT;      -- i5
  SIGNAL i50 : BIT;     -- i50
  SIGNAL i51 : BIT;     -- i51
  SIGNAL i52 : BIT;     -- i52
  SIGNAL i53 : BIT;     -- i53
  SIGNAL i54 : BIT;     -- i54
  SIGNAL i55 : BIT;     -- i55
  SIGNAL i56 : BIT;     -- i56
  SIGNAL i57 : BIT;     -- i57
  SIGNAL i58 : BIT;     -- i58
  SIGNAL i59 : BIT;     -- i59
  SIGNAL i6 : BIT;      -- i6
  SIGNAL i60 : BIT;     -- i60
  SIGNAL i61 : BIT;     -- i61
  SIGNAL i62 : BIT;     -- i62
  SIGNAL i63 : BIT;     -- i63
  SIGNAL i7 : BIT;      -- i7
  SIGNAL i8 : BIT;      -- i8
  SIGNAL i9 : BIT;      -- i9
  SIGNAL o0 : BIT;      -- o0
  SIGNAL o1 : BIT;      -- o1
  SIGNAL o10 : BIT;     -- o10
  SIGNAL o11 : BIT;     -- o11
  SIGNAL o12 : BIT;     -- o12
  SIGNAL o13 : BIT;     -- o13
  SIGNAL o14 : BIT;     -- o14
  SIGNAL o15 : BIT;     -- o15
  SIGNAL o16 : BIT;     -- o16
  SIGNAL o17 : BIT;     -- o17
  SIGNAL o18 : BIT;     -- o18
  SIGNAL o19 : BIT;     -- o19
  SIGNAL o2 : BIT;      -- o2
  SIGNAL o20 : BIT;     -- o20
  SIGNAL o21 : BIT;     -- o21
  SIGNAL o22 : BIT;     -- o22
  SIGNAL o23 : BIT;     -- o23
  SIGNAL o24 : BIT;     -- o24
  SIGNAL o25 : BIT;     -- o25
  SIGNAL o26 : BIT;     -- o26
  SIGNAL o27 : BIT;     -- o27
  SIGNAL o28 : BIT;     -- o28
  SIGNAL o29 : BIT;     -- o29
  SIGNAL o3 : BIT;      -- o3
  SIGNAL o30 : BIT;     -- o30
  SIGNAL o31 : BIT;     -- o31
  SIGNAL o32 : BIT;     -- o32
  SIGNAL o33 : BIT;     -- o33
  SIGNAL o34 : BIT;     -- o34
  SIGNAL o35 : BIT;     -- o35
  SIGNAL o36 : BIT;     -- o36
  SIGNAL o37 : BIT;     -- o37
  SIGNAL o38 : BIT;     -- o38
  SIGNAL o39 : BIT;     -- o39
  SIGNAL o4 : BIT;      -- o4
  SIGNAL o40 : BIT;     -- o40
  SIGNAL o41 : BIT;     -- o41
  SIGNAL o42 : BIT;     -- o42
  SIGNAL o43 : BIT;     -- o43
  SIGNAL o44 : BIT;     -- o44
  SIGNAL o45 : BIT;     -- o45
  SIGNAL o46 : BIT;     -- o46
  SIGNAL o47 : BIT;     -- o47
  SIGNAL o48 : BIT;     -- o48
  SIGNAL o49 : BIT;     -- o49
  SIGNAL o5 : BIT;      -- o5
  SIGNAL o50 : BIT;     -- o50
  SIGNAL o51 : BIT;     -- o51
  SIGNAL o52 : BIT;     -- o52
  SIGNAL o53 : BIT;     -- o53
  SIGNAL o54 : BIT;     -- o54
  SIGNAL o55 : BIT;     -- o55
  SIGNAL o56 : BIT;     -- o56
  SIGNAL o57 : BIT;     -- o57
  SIGNAL o58 : BIT;     -- o58
  SIGNAL o59 : BIT;     -- o59
  SIGNAL o6 : BIT;      -- o6
  SIGNAL o60 : BIT;     -- o60
  SIGNAL o61 : BIT;     -- o61
  SIGNAL o62 : BIT;     -- o62
  SIGNAL o63 : BIT;     -- o63
  SIGNAL o7 : BIT;      -- o7
  SIGNAL o8 : BIT;      -- o8
  SIGNAL o9 : BIT;      -- o9

BEGIN

  xor1 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_0,
    i1 => b(0),
    i0 => a(0));
  en1 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o0,
    en => en,
    a => i0);
  xor2 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_1,
    i1 => b(1),
    i0 => a(1));
  en2 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o1,
    en => en,
    a => i1);
  xor3 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_2,
    i1 => b(2),
    i0 => a(2));
  en3 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o2,
    en => en,
    a => i2);
  xor4 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_3,
    i1 => b(3),
    i0 => a(3));
  en4 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o3,
    en => en,
    a => i3);
  xor5 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_4,
    i1 => b(4),
    i0 => a(4));
  en5 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o4,
    en => en,
    a => i4);
  xor6 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_5,
    i1 => b(5),
    i0 => a(5));
  en6 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o5,
    en => en,
    a => i5);
  xor7 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_6,
    i1 => b(6),
    i0 => a(6));
  en7 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o6,
    en => en,
    a => i6);
  xor8 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_7,
    i1 => b(7),
    i0 => a(7));
  en8 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o7,
    en => en,
    a => i7);
  xor9 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_8,
    i1 => b(8),
    i0 => a(8));
  en9 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o8,
    en => en,
    a => i8);
  xor10 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_9,
    i1 => b(9),
    i0 => a(9));
  en10 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o9,
    en => en,
    a => i9);
  xor11 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_10,
    i1 => b(10),
    i0 => a(10));
  en11 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o10,
    en => en,
    a => i10);
  xor12 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_11,
    i1 => b(11),
    i0 => a(11));
  en12 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o11,
    en => en,
    a => i11);
  xor13 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_12,
    i1 => b(12),
    i0 => a(12));
  en13 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o12,
    en => en,
    a => i12);
  xor14 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_13,
    i1 => b(13),
    i0 => a(13));
  en14 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o13,
    en => en,
    a => i13);
  xor15 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_14,
    i1 => b(14),
    i0 => a(14));
  en15 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o14,
    en => en,
    a => i14);
  xor16 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_15,
    i1 => b(15),
    i0 => a(15));
  en16 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o15,
    en => en,
    a => i15);
  xor17 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_16,
    i1 => b(16),
    i0 => a(16));
  en17 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o16,
    en => en,
    a => i16);
  xor18 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_17,
    i1 => b(17),
    i0 => a(17));
  en18 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o17,
    en => en,
    a => i17);
  xor19 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_18,
    i1 => b(18),
    i0 => a(18));
  en19 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o18,
    en => en,
    a => i18);
  xor20 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_19,
    i1 => b(19),
    i0 => a(19));
  en20 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o19,
    en => en,
    a => i19);
  xor21 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_20,
    i1 => b(20),
    i0 => a(20));
  en21 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o20,
    en => en,
    a => i20);
  xor22 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_21,
    i1 => b(21),
    i0 => a(21));
  en22 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o21,
    en => en,
    a => i21);
  xor23 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_22,
    i1 => b(22),
    i0 => a(22));
  en23 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o22,
    en => en,
    a => i22);
  xor24 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_23,
    i1 => b(23),
    i0 => a(23));
  en24 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o23,
    en => en,
    a => i23);
  xor25 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_24,
    i1 => b(24),
    i0 => a(24));
  en25 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o24,
    en => en,
    a => i24);
  xor26 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_25,
    i1 => b(25),
    i0 => a(25));
  en26 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o25,
    en => en,
    a => i25);
  xor27 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_26,
    i1 => b(26),
    i0 => a(26));
  en27 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o26,
    en => en,
    a => i26);
  xor28 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_27,
    i1 => b(27),
    i0 => a(27));
  en28 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o27,
    en => en,
    a => i27);
  xor29 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_28,
    i1 => b(28),
    i0 => a(28));
  en29 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o28,
    en => en,
    a => i28);
  xor30 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_29,
    i1 => b(29),
    i0 => a(29));
  en30 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o29,
    en => en,
    a => i29);
  xor31 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_30,
    i1 => b(30),
    i0 => a(30));
  en31 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o30,
    en => en,
    a => i30);
  xor32 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_31,
    i1 => b(31),
    i0 => a(31));
  en32 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o31,
    en => en,
    a => i31);
  xor33 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_32,
    i1 => b(32),
    i0 => a(32));
  en33 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o32,
    en => en,
    a => i32);
  xor34 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_33,
    i1 => b(33),
    i0 => a(33));
  en34 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o33,
    en => en,
    a => i33);
  xor35 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_34,
    i1 => b(34),
    i0 => a(34));
  en35 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o34,
    en => en,
    a => i34);
  xor36 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_35,
    i1 => b(35),
    i0 => a(35));
  en36 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o35,
    en => en,
    a => i35);
  xor37 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_36,
    i1 => b(36),
    i0 => a(36));
  en37 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o36,
    en => en,
    a => i36);
  xor38 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_37,
    i1 => b(37),
    i0 => a(37));
  en38 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o37,
    en => en,
    a => i37);
  xor39 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_38,
    i1 => b(38),
    i0 => a(38));
  en39 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o38,
    en => en,
    a => i38);
  xor40 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_39,
    i1 => b(39),
    i0 => a(39));
  en40 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o39,
    en => en,
    a => i39);
  xor41 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_40,
    i1 => b(40),
    i0 => a(40));
  en41 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o40,
    en => en,
    a => i40);
  xor42 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_41,
    i1 => b(41),
    i0 => a(41));
  en42 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o41,
    en => en,
    a => i41);
  xor43 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_42,
    i1 => b(42),
    i0 => a(42));
  en43 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o42,
    en => en,
    a => i42);
  xor44 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_43,
    i1 => b(43),
    i0 => a(43));
  en44 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o43,
    en => en,
    a => i43);
  xor45 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_44,
    i1 => b(44),
    i0 => a(44));
  en45 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o44,
    en => en,
    a => i44);
  xor46 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_45,
    i1 => b(45),
    i0 => a(45));
  en46 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o45,
    en => en,
    a => i45);
  xor47 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_46,
    i1 => b(46),
    i0 => a(46));
  en47 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o46,
    en => en,
    a => i46);
  xor48 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_47,
    i1 => b(47),
    i0 => a(47));
  en48 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o47,
    en => en,
    a => i47);
  xor49 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_48,
    i1 => b(48),
    i0 => a(48));
  en49 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o48,
    en => en,
    a => i48);
  xor50 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_49,
    i1 => b(49),
    i0 => a(49));
  en50 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o49,
    en => en,
    a => i49);
  xor51 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_50,
    i1 => b(50),
    i0 => a(50));
  en51 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o50,
    en => en,
    a => i50);
  xor52 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_51,
    i1 => b(51),
    i0 => a(51));
  en52 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o51,
    en => en,
    a => i51);
  xor53 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_52,
    i1 => b(52),
    i0 => a(52));
  en53 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o52,
    en => en,
    a => i52);
  xor54 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_53,
    i1 => b(53),
    i0 => a(53));
  en54 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o53,
    en => en,
    a => i53);
  xor55 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_54,
    i1 => b(54),
    i0 => a(54));
  en55 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o54,
    en => en,
    a => i54);
  xor56 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_55,
    i1 => b(55),
    i0 => a(55));
  en56 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o55,
    en => en,
    a => i55);
  xor57 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_56,
    i1 => b(56),
    i0 => a(56));
  en57 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o56,
    en => en,
    a => i56);
  xor58 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_57,
    i1 => b(57),
    i0 => a(57));
  en58 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o57,
    en => en,
    a => i57);
  xor59 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_58,
    i1 => b(58),
    i0 => a(58));
  en59 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o58,
    en => en,
    a => i58);
  xor60 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_59,
    i1 => b(59),
    i0 => a(59));
  en60 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o59,
    en => en,
    a => i59);
  xor61 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_60,
    i1 => b(60),
    i0 => a(60));
  en61 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o60,
    en => en,
    a => i60);
  xor62 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_61,
    i1 => b(61),
    i0 => a(61));
  en62 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o61,
    en => en,
    a => i61);
  xor63 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_62,
    i1 => b(62),
    i0 => a(62));
  en63 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o62,
    en => en,
    a => i62);
  xor64 : xr2_x1
    PORT MAP (
    vss => vss,
    vdd => vdd,
    q => i_63,
    i1 => b(63),
    i0 => a(63));
  en64 : latch
    PORT MAP (
    vss => vss,
    vdd => vdd,
    b => o63,
    en => en,
    a => i63);

end VST;

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