File : s-gcc.adb
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT COMPILER COMPONENTS --
4 -- --
5 -- S Y S T E M . G C C --
6 -- --
7 -- S p e c --
8 -- --
9 -- Copyright (C) 2013-2014, Free Software Foundation, Inc. --
10 -- --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
17 -- --
18 -- --
19 -- --
20 -- --
21 -- --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
26 -- --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
29 -- --
30 ------------------------------------------------------------------------------
31
32 package body System.GCC is
33 use Interfaces;
34
35 -----------
36 -- Merge --
37 -----------
38
39 function Merge (Hi : Unsigned_32; Lo : Unsigned_32) return Unsigned_64 is
40 begin
41 return Unsigned_64 (Hi) * 2**32 + Unsigned_64 (Lo);
42 end Merge;
43
44 -----------
45 -- Split --
46 -----------
47
48 procedure Split
49 (Val : Unsigned_64;
50 Hi : out Unsigned_32;
51 Lo : out Unsigned_32)
52 is
53 begin
54 Hi := Unsigned_32 (Val / 2**32);
55 Lo := Unsigned_32 (Val rem 2**32);
56 end Split;
57
58 end System.GCC;