| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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) 1992-2021, 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; |
