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Diffstat (limited to 'gcc-4.3.1/gcc/ada/s-addope.adb')
-rw-r--r-- | gcc-4.3.1/gcc/ada/s-addope.adb | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/gcc-4.3.1/gcc/ada/s-addope.adb b/gcc-4.3.1/gcc/ada/s-addope.adb new file mode 100644 index 000000000..b9350c6f8 --- /dev/null +++ b/gcc-4.3.1/gcc/ada/s-addope.adb @@ -0,0 +1,114 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- S Y S T E M . A D D R E S S _ O P E R A T I O N S -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 2004-2007, Free Software Foundation, Inc. -- +-- -- +-- GNAT is free software; you can redistribute it and/or modify it under -- +-- terms of the GNU General Public License as published by the Free Soft- -- +-- ware Foundation; either version 2, or (at your option) any later ver- -- +-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- +-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- +-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- +-- for more details. You should have received a copy of the GNU General -- +-- Public License distributed with GNAT; see file COPYING. If not, write -- +-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- +-- Boston, MA 02110-1301, USA. -- +-- -- +-- As a special exception, if other files instantiate generics from this -- +-- unit, or you link this unit with other files to produce an executable, -- +-- this unit does not by itself cause the resulting executable to be -- +-- covered by the GNU General Public License. This exception does not -- +-- however invalidate any other reasons why the executable file might be -- +-- covered by the GNU Public License. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +pragma Warnings (Off); +pragma Compiler_Unit; +pragma Warnings (On); + +with Ada.Unchecked_Conversion; + +package body System.Address_Operations is + + type IA is mod 2 ** Address'Size; + -- The type used to provide the actual desired operations + + function I is new Ada.Unchecked_Conversion (Address, IA); + function A is new Ada.Unchecked_Conversion (IA, Address); + -- The operations are implemented by unchecked conversion to type IA, + -- followed by doing the intrinsic operation on the IA values, followed + -- by converting the result back to type Address. + + ---------- + -- AddA -- + ---------- + + function AddA (Left, Right : Address) return Address is + begin + return A (I (Left) + I (Right)); + end AddA; + + ---------- + -- AndA -- + ---------- + + function AndA (Left, Right : Address) return Address is + begin + return A (I (Left) and I (Right)); + end AndA; + + ---------- + -- DivA -- + ---------- + + function DivA (Left, Right : Address) return Address is + begin + return A (I (Left) / I (Right)); + end DivA; + + ---------- + -- ModA -- + ---------- + + function ModA (Left, Right : Address) return Address is + begin + return A (I (Left) mod I (Right)); + end ModA; + + --------- + -- MulA -- + --------- + + function MulA (Left, Right : Address) return Address is + begin + return A (I (Left) * I (Right)); + end MulA; + + --------- + -- OrA -- + --------- + + function OrA (Left, Right : Address) return Address is + begin + return A (I (Left) or I (Right)); + end OrA; + + ---------- + -- SubA -- + ---------- + + function SubA (Left, Right : Address) return Address is + begin + return A (I (Left) - I (Right)); + end SubA; + +end System.Address_Operations; |