projects / thirdparty / gcc.git / blame
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| cacbc350 RK |
1 | ------------------------------------------------------------------------------ |
| 2 | -- -- | |
| 3084fecd | 3 | -- GNAT RUN-TIME COMPONENTS -- |
| cacbc350 RK |
4 | -- -- |
| 5 | -- S Y S T E M . P A C K _ 2 8 -- | |
| 6 | -- -- | |
| 7 | -- S p e c -- | |
| 8 | -- -- | |
| 4b490c1e | 9 | -- Copyright (C) 1992-2020, Free Software Foundation, Inc. -- |
| cacbc350 RK |
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- -- | |
| 748086b7 | 13 | -- ware Foundation; either version 3, or (at your option) any later ver- -- |
| cacbc350 RK |
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 -- | |
| 748086b7 JJ |
16 | -- or FITNESS FOR A PARTICULAR PURPOSE. -- |
| 17 | -- -- | |
| 18 | -- As a special exception under Section 7 of GPL version 3, you are granted -- | |
| 19 | -- additional permissions described in the GCC Runtime Library Exception, -- | |
| 20 | -- version 3.1, as published by the Free Software Foundation. -- | |
| 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/>. -- | |
| cacbc350 RK |
26 | -- -- |
| 27 | -- GNAT was originally developed by the GNAT team at New York University. -- | |
| 71ff80dc | 28 | -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| cacbc350 RK |
29 | -- -- |
| 30 | ------------------------------------------------------------------------------ | |
| 31 | ||
| 32 | -- Handling of packed arrays with Component_Size = 28 | |
| 33 | ||
| 34 | package System.Pack_28 is | |
| 009186e0 | 35 | pragma Preelaborate; |
| cacbc350 RK |
36 | |
| 37 | Bits : constant := 28; | |
| 38 | ||
| 39 | type Bits_28 is mod 2 ** Bits; | |
| 40 | for Bits_28'Size use Bits; | |
| 41 | ||
| 7b536495 AC |
42 | -- In all subprograms below, Rev_SSO is set True if the array has the |
| 43 | -- non-default scalar storage order. | |
| 44 | ||
| 45 | function Get_28 | |
| 46 | (Arr : System.Address; | |
| 47 | N : Natural; | |
| 48 | Rev_SSO : Boolean) return Bits_28 with Inline; | |
| cacbc350 RK |
49 | -- Arr is the address of the packed array, N is the zero-based |
| 50 | -- subscript. This element is extracted and returned. | |
| 51 | ||
| 7b536495 AC |
52 | procedure Set_28 |
| 53 | (Arr : System.Address; | |
| 54 | N : Natural; | |
| 55 | E : Bits_28; | |
| 56 | Rev_SSO : Boolean) with Inline; | |
| cacbc350 RK |
57 | -- Arr is the address of the packed array, N is the zero-based |
| 58 | -- subscript. This element is set to the given value. | |
| 59 | ||
| 7b536495 AC |
60 | function GetU_28 |
| 61 | (Arr : System.Address; | |
| 62 | N : Natural; | |
| 63 | Rev_SSO : Boolean) return Bits_28 with Inline; | |
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64 | -- Arr is the address of the packed array, N is the zero-based |
| 65 | -- subscript. This element is extracted and returned. This version | |
| 66 | -- is used when Arr may represent an unaligned address. | |
| 67 | ||
| 7b536495 AC |
68 | procedure SetU_28 |
| 69 | (Arr : System.Address; | |
| 70 | N : Natural; | |
| 71 | E : Bits_28; | |
| 72 | Rev_SSO : Boolean) with Inline; | |
| cacbc350 RK |
73 | -- Arr is the address of the packed array, N is the zero-based |
| 74 | -- subscript. This element is set to the given value. This version | |
| 75 | -- is used when Arr may represent an unaligned address | |
| 76 | ||
| 77 | end System.Pack_28; |