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From: Guillaume Foliard <guifo@wanadoo.fr>
Newsgroups: comp.lang.ada
Subject: Re: Little Endian -> Big Endian (Ada95 / GNAT)
Date: Fri, 27 Feb 2004 21:38:57 +0100
Organization: Old Europe
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Hi,

On a x86 with GNAT, a slightly modified version would look like :

with Interfaces;
with System.Machine_Code; use System.Machine_Code;

function To_Big_Endian
  (N : Interfaces.Unsigned_32) return Interfaces.Unsigned_32 is
      Result : Integer;
begin
      Asm ("bswap %0",
           Inputs  => Integer'Asm_Input ("a", N),
           Outputs => Integer'Asm_Output ("=a", Result));
      return Result;
end To_Big_Endian;