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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [ada/] [s-addima.adb] - Rev 297
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------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- S Y S T E M . A D D R E S S _ I M A G E -- -- -- -- B o d y -- -- -- -- Copyright (C) 1992-2009, Free Software Foundation, Inc. -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 3, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. -- -- -- -- As a special exception under Section 7 of GPL version 3, you are granted -- -- additional permissions described in the GCC Runtime Library Exception, -- -- version 3.1, as published by the Free Software Foundation. -- -- -- -- You should have received a copy of the GNU General Public License and -- -- a copy of the GCC Runtime Library Exception along with this program; -- -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- -- <http://www.gnu.org/licenses/>. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ with Ada.Unchecked_Conversion; function System.Address_Image (A : Address) return String is Result : String (1 .. 2 * Address'Size / Storage_Unit); type Byte is mod 2 ** 8; for Byte'Size use 8; Hexdigs : constant array (Byte range 0 .. 15) of Character := "0123456789ABCDEF"; type Bytes is array (1 .. Address'Size / Storage_Unit) of Byte; for Bytes'Size use Address'Size; function To_Bytes is new Ada.Unchecked_Conversion (Address, Bytes); Byte_Sequence : constant Bytes := To_Bytes (A); LE : constant := Standard'Default_Bit_Order; BE : constant := 1 - LE; -- Set to 1/0 for True/False for Little-Endian/Big-Endian Start : constant Natural := BE * (1) + LE * (Bytes'Length); Incr : constant Integer := BE * (1) + LE * (-1); -- Start and increment for accessing characters of address string Ptr : Natural; -- Scan address string begin Ptr := Start; for N in Bytes'Range loop Result (2 * N - 1) := Hexdigs (Byte_Sequence (Ptr) / 16); Result (2 * N) := Hexdigs (Byte_Sequence (Ptr) mod 16); Ptr := Ptr + Incr; end loop; return Result; end System.Address_Image;
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