* config/alpha/alpha.c, config/alpha/alpha.md,
[official-gcc.git] / gcc / ada / s-pack12.ads
blob14ee979afc92a877beded6421470c91c5c4fdc27
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME COMPONENTS --
4 -- --
5 -- S Y S T E M . P A C K _ 1 2 --
6 -- --
7 -- S p e c --
8 -- --
9 -- Copyright (C) 1992-2005, 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 2, 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. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
20 -- Boston, MA 02110-1301, USA. --
21 -- --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
28 -- --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
31 -- --
32 ------------------------------------------------------------------------------
34 -- Handling of packed arrays with Component_Size = 12
36 package System.Pack_12 is
37 pragma Preelaborate;
39 Bits : constant := 12;
41 type Bits_12 is mod 2 ** Bits;
42 for Bits_12'Size use Bits;
44 function Get_12 (Arr : System.Address; N : Natural) return Bits_12;
45 -- Arr is the address of the packed array, N is the zero-based
46 -- subscript. This element is extracted and returned.
48 procedure Set_12 (Arr : System.Address; N : Natural; E : Bits_12);
49 -- Arr is the address of the packed array, N is the zero-based
50 -- subscript. This element is set to the given value.
52 function GetU_12 (Arr : System.Address; N : Natural) return Bits_12;
53 -- Arr is the address of the packed array, N is the zero-based
54 -- subscript. This element is extracted and returned. This version
55 -- is used when Arr may represent an unaligned address.
57 procedure SetU_12 (Arr : System.Address; N : Natural; E : Bits_12);
58 -- Arr is the address of the packed array, N is the zero-based
59 -- subscript. This element is set to the given value. This version
60 -- is used when Arr may represent an unaligned address
62 end System.Pack_12;