numeric_bit-body.vhdl

vhdl集成电路设计软件.需要用gcc-4.0.2版本编译.

    end if;
    if SIGNED_NUM_BITS(L) > R'LENGTH then return L > 0;
    end if;
    return not SIGNED_LESS_OR_EQUAL(TO_SIGNED(L, R'LENGTH), R);
  end ">";

  -- Id: C.5
  function ">" (L: UNSIGNED; R: NATURAL) return BOOLEAN is
  begin
    if (L'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT."">"": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if UNSIGNED_NUM_BITS(R) > L'LENGTH then return FALSE;
    end if;
    return not UNSIGNED_LESS_OR_EQUAL(L, TO_UNSIGNED(R, L'LENGTH));
  end ">";

  -- Id: C.6
  function ">" (L: SIGNED; R: INTEGER) return BOOLEAN is
  begin
    if (L'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT."">"": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if SIGNED_NUM_BITS(R) > L'LENGTH then return 0 > R;
    end if;
    return not SIGNED_LESS_OR_EQUAL(L, TO_SIGNED(R, L'LENGTH));
  end ">";

  --============================================================================

  -- Id: C.7
  function "<" (L, R: UNSIGNED) return BOOLEAN is
    variable SIZE: NATURAL := MAX(L'LENGTH, R'LENGTH);
  begin
    if ((L'LENGTH < 1) or (R'LENGTH < 1)) then
      assert NO_WARNING
          report "NUMERIC_BIT.""<"": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    return UNSIGNED_LESS(RESIZE(L, SIZE), RESIZE(R, SIZE));
  end "<";

  -- Id: C.8
  function "<" (L, R: SIGNED) return BOOLEAN is
    variable SIZE: NATURAL := MAX(L'LENGTH, R'LENGTH);
  begin
    if ((L'LENGTH < 1) or (R'LENGTH < 1)) then
      assert NO_WARNING
          report "NUMERIC_BIT.""<"": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    return SIGNED_LESS(RESIZE(L, SIZE), RESIZE(R, SIZE));
  end "<";

  -- Id: C.9
  function "<" (L: NATURAL; R: UNSIGNED) return BOOLEAN is
  begin
    if (R'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""<"": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if UNSIGNED_NUM_BITS(L) > R'LENGTH then return L < 0;
    end if;
    return UNSIGNED_LESS(TO_UNSIGNED(L, R'LENGTH), R);
  end "<";

  -- Id: C.10
  function "<" (L: INTEGER; R: SIGNED) return BOOLEAN is
  begin
    if (R'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""<"": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if SIGNED_NUM_BITS(L) > R'LENGTH then return L < 0;
    end if;
    return SIGNED_LESS(TO_SIGNED(L, R'LENGTH), R);
  end "<";

  -- Id: C.11
  function "<" (L: UNSIGNED; R: NATURAL) return BOOLEAN is
  begin
    if (L'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""<"": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if UNSIGNED_NUM_BITS(R) > L'LENGTH then return 0 < R;
    end if;
    return UNSIGNED_LESS(L, TO_UNSIGNED(R, L'LENGTH));
  end "<";

  -- Id: C.12
  function "<" (L: SIGNED; R: INTEGER) return BOOLEAN is
  begin
    if (L'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""<"": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if SIGNED_NUM_BITS(R) > L'LENGTH then return 0 < R;
    end if;
    return SIGNED_LESS(L, TO_SIGNED(R, L'LENGTH));
  end "<";

  --============================================================================

  -- Id: C.13
  function "<=" (L, R: UNSIGNED) return BOOLEAN is
    variable SIZE: NATURAL := MAX(L'LENGTH, R'LENGTH);
  begin
    if ((L'LENGTH < 1) or (R'LENGTH < 1)) then
      assert NO_WARNING
          report "NUMERIC_BIT.""<="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    return UNSIGNED_LESS_OR_EQUAL(RESIZE(L, SIZE), RESIZE(R, SIZE));
  end "<=";

  -- Id: C.14
  function "<=" (L, R: SIGNED) return BOOLEAN is
    variable SIZE: NATURAL := MAX(L'LENGTH, R'LENGTH);
  begin
    if ((L'LENGTH < 1) or (R'LENGTH < 1)) then
      assert NO_WARNING
          report "NUMERIC_BIT.""<="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    return SIGNED_LESS_OR_EQUAL(RESIZE(L, SIZE), RESIZE(R, SIZE));
  end "<=";

  -- Id: C.15
  function "<=" (L: NATURAL; R: UNSIGNED) return BOOLEAN is
  begin
    if (R'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""<="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if UNSIGNED_NUM_BITS(L) > R'LENGTH then return L < 0;
    end if;
    return UNSIGNED_LESS_OR_EQUAL(TO_UNSIGNED(L, R'LENGTH), R);
  end "<=";

  -- Id: C.16
  function "<=" (L: INTEGER; R: SIGNED) return BOOLEAN is
  begin
    if (R'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""<="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if SIGNED_NUM_BITS(L) > R'LENGTH then return L < 0;
    end if;
    return SIGNED_LESS_OR_EQUAL(TO_SIGNED(L, R'LENGTH), R);
  end "<=";

  -- Id: C.17
  function "<=" (L: UNSIGNED; R: NATURAL) return BOOLEAN is
  begin
    if (L'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""<="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if UNSIGNED_NUM_BITS(R) > L'LENGTH then return 0 < R;
    end if;
    return UNSIGNED_LESS_OR_EQUAL(L, TO_UNSIGNED(R, L'LENGTH));
  end "<=";

  -- Id: C.18
  function "<=" (L: SIGNED; R: INTEGER) return BOOLEAN is
  begin
    if (L'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""<="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if SIGNED_NUM_BITS(R) > L'LENGTH then return 0 < R;
    end if;
    return SIGNED_LESS_OR_EQUAL(L, TO_SIGNED(R, L'LENGTH));
  end "<=";

  --============================================================================

  -- Id: C.19
  function ">=" (L, R: UNSIGNED) return BOOLEAN is
    variable SIZE: NATURAL := MAX(L'LENGTH, R'LENGTH);
  begin
    if ((L'LENGTH < 1) or (R'LENGTH < 1)) then
      assert NO_WARNING
          report "NUMERIC_BIT."">="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    return not UNSIGNED_LESS(RESIZE(L, SIZE), RESIZE(R, SIZE));
  end ">=";

  -- Id: C.20
  function ">=" (L, R: SIGNED) return BOOLEAN is
    variable SIZE: NATURAL := MAX(L'LENGTH, R'LENGTH);
  begin
    if ((L'LENGTH < 1) or (R'LENGTH < 1)) then
      assert NO_WARNING
          report "NUMERIC_BIT."">="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    return not SIGNED_LESS(RESIZE(L, SIZE), RESIZE(R, SIZE));
  end ">=";

  -- Id: C.21
  function ">=" (L: NATURAL; R: UNSIGNED) return BOOLEAN is
  begin
    if (R'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT."">="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if UNSIGNED_NUM_BITS(L) > R'LENGTH then return L > 0;
    end if;
    return not UNSIGNED_LESS(TO_UNSIGNED(L, R'LENGTH), R);
  end ">=";

  -- Id: C.22
  function ">=" (L: INTEGER; R: SIGNED) return BOOLEAN is
  begin
    if (R'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT."">="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if SIGNED_NUM_BITS(L) > R'LENGTH then return L > 0;
    end if;
    return not SIGNED_LESS(TO_SIGNED(L, R'LENGTH), R);
  end ">=";

  -- Id: C.23
  function ">=" (L: UNSIGNED; R: NATURAL) return BOOLEAN is
  begin
    if (L'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT."">="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if UNSIGNED_NUM_BITS(R) > L'LENGTH then return 0 > R;
    end if;
    return not UNSIGNED_LESS(L, TO_UNSIGNED(R, L'LENGTH));
  end ">=";

  -- Id: C.24
  function ">=" (L: SIGNED; R: INTEGER) return BOOLEAN is
  begin
    if (L'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT."">="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if SIGNED_NUM_BITS(R) > L'LENGTH then return 0 > R;
    end if;
    return not SIGNED_LESS(L, TO_SIGNED(R, L'LENGTH));
  end ">=";

  --============================================================================

  -- Id: C.25
  function "=" (L, R: UNSIGNED) return BOOLEAN is
    variable SIZE: NATURAL := MAX(L'LENGTH, R'LENGTH);
  begin
    if ((L'LENGTH < 1) or (R'LENGTH < 1)) then
      assert NO_WARNING
          report "NUMERIC_BIT.""="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    return UNSIGNED_EQUAL(RESIZE(L, SIZE), RESIZE(R, SIZE));
  end "=";

  -- Id: C.26
  function "=" (L, R: SIGNED) return BOOLEAN is
    variable SIZE: NATURAL := MAX(L'LENGTH, R'LENGTH);
  begin
    if ((L'LENGTH < 1) or (R'LENGTH < 1)) then
      assert NO_WARNING
          report "NUMERIC_BIT.""="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    return SIGNED_EQUAL(RESIZE(L, SIZE), RESIZE(R, SIZE));
  end "=";

  -- Id: C.27
  function "=" (L: NATURAL; R: UNSIGNED) return BOOLEAN is
  begin
    if (R'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if UNSIGNED_NUM_BITS(L) > R'LENGTH then return FALSE;
    end if;
    return UNSIGNED_EQUAL(TO_UNSIGNED(L, R'LENGTH), R);
  end "=";

  -- Id: C.28
  function "=" (L: INTEGER; R: SIGNED) return BOOLEAN is
  begin
    if (R'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if SIGNED_NUM_BITS(L) > R'LENGTH then return FALSE;
    end if;
    return SIGNED_EQUAL(TO_SIGNED(L, R'LENGTH), R);
  end "=";

  -- Id: C.29
  function "=" (L: UNSIGNED; R: NATURAL) return BOOLEAN is
  begin
    if (L'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if UNSIGNED_NUM_BITS(R) > L'LENGTH then return FALSE;
    end if;
    return UNSIGNED_EQUAL(L, TO_UNSIGNED(R, L'LENGTH));
  end "=";

  -- Id: C.30
  function "=" (L: SIGNED; R: INTEGER) return BOOLEAN is
  begin
    if (L'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""="": null argument detected, returning FALSE"
          severity WARNING;
      return FALSE;
    end if;
    if SIGNED_NUM_BITS(R) > L'LENGTH then return FALSE;
    end if;
    return SIGNED_EQUAL(L, TO_SIGNED(R, L'LENGTH));
  end "=";

  --============================================================================

  -- Id: C.31
  function "/=" (L, R: UNSIGNED) return BOOLEAN is
    variable SIZE: NATURAL := MAX(L'LENGTH, R'LENGTH);
  begin
    if ((L'LENGTH < 1) or (R'LENGTH < 1)) then
      assert NO_WARNING
          report "NUMERIC_BIT.""/="": null argument detected, returning TRUE"
          severity WARNING;
      return TRUE;
    end if;
    return not(UNSIGNED_EQUAL(RESIZE(L, SIZE), RESIZE(R, SIZE)));
  end "/=";

  -- Id: C.32
  function "/=" (L, R: SIGNED) return BOOLEAN is
    variable SIZE: NATURAL := MAX(L'LENGTH, R'LENGTH);
  begin
    if ((L'LENGTH < 1) or (R'LENGTH < 1)) then
      assert NO_WARNING
          report "NUMERIC_BIT.""/="": null argument detected, returning TRUE"
          severity WARNING;
      return TRUE;
    end if;
    return not(SIGNED_EQUAL(RESIZE(L, SIZE), RESIZE(R, SIZE)));
  end "/=";

  -- Id: C.33
  function "/=" (L: NATURAL; R: UNSIGNED) return BOOLEAN is
  begin
    if (R'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""/="": null argument detected, returning TRUE"
          severity WARNING;
      return TRUE;
    end if;
    if UNSIGNED_NUM_BITS(L) > R'LENGTH then return TRUE;
    end if;
    return not(UNSIGNED_EQUAL(TO_UNSIGNED(L, R'LENGTH), R));
  end "/=";

  -- Id: C.34
  function "/=" (L: INTEGER; R: SIGNED) return BOOLEAN is
  begin
    if (R'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""/="": null argument detected, returning TRUE"
          severity WARNING;
      return TRUE;
    end if;
    if SIGNED_NUM_BITS(L) > R'LENGTH then return TRUE;
    end if;
    return not(SIGNED_EQUAL(TO_SIGNED(L, R'LENGTH), R));
  end "/=";

  -- Id: C.35
  function "/=" (L: UNSIGNED; R: NATURAL) return BOOLEAN is
  begin
    if (L'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""/="": null argument detected, returning TRUE"
          severity WARNING;
      return TRUE;
    end if;
    if UNSIGNED_NUM_BITS(R) > L'LENGTH then return TRUE;
    end if;
    return not(UNSIGNED_EQUAL(L, TO_UNSIGNED(R, L'LENGTH)));
  end "/=";

  -- Id: C.36
  function "/=" (L: SIGNED; R: INTEGER) return BOOLEAN is
  begin
    if (L'LENGTH < 1) then
      assert NO_WARNING
          report "NUMERIC_BIT.""/="": null argument detected, returning TRUE"
          severity WARNING;
      return TRUE;
    end if;
    if SIGNED_NUM_BITS(R) > L'LENGTH then return TRUE;
    end if;
    return not(SIGNED_EQUAL(L, TO_SIGNED(R, L'LENGTH)));
  end "/=";

  --============================================================================