73 lines
3.5 KiB
Ada
73 lines
3.5 KiB
Ada
|
------------------------------------------------------------------------------
|
||
|
|
-- --
|
||
|
|
-- 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;
|