| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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, 51 Franklin Street, Fifth Floor, -- |
| -- Boston, MA 02110-1301, 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; |