Subversion Repositories openrisc_2011-10-31

-- FD72A00.A

--

--                             Grant of Unlimited Rights

--

--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,

--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained

--     unlimited rights in the software and documentation contained herein.

--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making

--     this public release, the Government intends to confer upon all

--     recipients unlimited rights  equal to those held by the Government.

--     These rights include rights to use, duplicate, release or disclose the

--     released technical data and computer software in whole or in part, in

--     any manner and for any purpose whatsoever, and to have or permit others

--     to do so.

--

--                                    DISCLAIMER

--

--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR

--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED

--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE

--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE

--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A

--     PARTICULAR PURPOSE OF SAID MATERIAL.

--*

--

-- FOUNDATION DESCRIPTION:

--      This foundation provides a basis for testing package

--      System.Address_To_Access_Conversions

--

-- TEST FILES:

--      The following files comprise this foundation:

--

--         FD72A00.A

--

-- CHANGE HISTORY:

--      08 FEB 96   SAIC    Initial version

--

--!

with Impdef;

with System.Storage_Elements;

package FD72A00 is

  use System;

  subtype Number is System.Storage_Elements.Integer_Address;

  package Num_IO renames Impdef.Address_Value_IO;

    -- the following conversions To/From Hex are to prevent optimizers from

    -- optimizing out the otherwise senseless identity conversions, and

    -- given the unknown nature of the type Number, the Identity operations

    -- provided in Report will not suffice to this cause.

    function Address_To_Hex( Adder: System.Address ) return String;

    function Hex_To_Address( Hex: access String ) return System.Address;

end FD72A00;

package body FD72A00 is

    function Address_To_Hex( Adder: System.Address ) return String is

      S : String(1..64)

       := "uninitializedDEFuninitializedDEFuninitializedDEFuninitializedDEF";

      DeBlank : Positive := S'First;

    begin

      Num_IO.Put( S, Number( System.Storage_Elements.To_Integer( Adder ) ),

                  Base => 16 );

      while S(DeBlank) = ' ' loop

        DeBlank := DeBlank +1;

      end loop;

      return S(DeBlank..S'Last);

    end Address_To_Hex;

    function Hex_To_Address( Hex: access String ) return System.Address is

      The_Number : Number;

      Tail       : Natural;

    begin

      Num_IO.Get( Hex.all, The_Number, Tail );

      return System.Storage_Elements.To_Address(

                      System.Storage_Elements.Integer_Address( The_Number ) );

    end Hex_To_Address;

end FD72A00;