1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- S Y S T E M . P A C K _ 6 2 --
9 -- Copyright (C) 1992-2005, Free Software Foundation, Inc. --
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. --
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. --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
32 ------------------------------------------------------------------------------
34 -- Handling of packed arrays with Component_Size = 62
36 package System
.Pack_62
is
39 Bits
: constant := 62;
41 type Bits_62
is mod 2 ** Bits
;
42 for Bits_62
'Size use Bits
;
44 function Get_62
(Arr
: System
.Address
; N
: Natural) return Bits_62
;
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_62
(Arr
: System
.Address
; N
: Natural; E
: Bits_62
);
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_62
(Arr
: System
.Address
; N
: Natural) return Bits_62
;
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_62
(Arr
: System
.Address
; N
: Natural; E
: Bits_62
);
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