------------------------------------------------------------------------------ -- -- -- 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) 1992,1993,1994,1995,1996 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 2, 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. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNAT; see file COPYING. If not, write -- -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- -- MA 02111-1307, USA. -- -- -- -- As a special exception, if other files instantiate generics from this -- -- unit, or you link this unit with other files to produce an executable, -- -- this unit does not by itself cause the resulting executable to be -- -- covered by the GNU General Public License. This exception does not -- -- however invalidate any other reasons why the executable file might be -- -- covered by the GNU Public License. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ with 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 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;