------------------------------------------------------------------------------
-- --
--- GNU ADA RUNTIME LIBRARY (GNARL) COMPONENTS --
+-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
-- --
-- S Y S T E M . G E N E R I C _ V E C T O R _ O P E R A T I O N S --
-- --
-- B o d y --
-- --
--- Copyright (C) 2002 Free Software Foundation, Inc. --
+-- Copyright (C) 2002-2007, 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- --
-- 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, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- 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, --
-- --
------------------------------------------------------------------------------
-with System; use System;
-with System.Storage_Elements; use System.Storage_Elements;
-with Ada.Unchecked_Conversion; use Ada;
+with System; use System;
+with System.Address_Operations; use System.Address_Operations;
+with System.Storage_Elements; use System.Storage_Elements;
+
+with Ada.Unchecked_Conversion;
package body System.Generic_Vector_Operations is
- VU : constant Address := Vectors.Vector'Size / Storage_Unit;
- EU : constant Address := Element_Array'Component_Size / Storage_Unit;
+
+ IU : constant Integer := Integer (Storage_Unit);
+ VU : constant Address := Address (Vectors.Vector'Size / IU);
+ EU : constant Address := Address (Element_Array'Component_Size / IU);
----------------------
-- Binary_Operation --
YA : Address := Y;
-- Address of next element to process in R, X and Y
- Unaligned : constant Boolean := (RA or XA or YA) mod VU /= 0;
- -- False iff one or more argument addresses is not aligned
+ VI : constant Integer_Address := To_Integer (VU);
+
+ Unaligned : constant Integer_Address :=
+ Boolean'Pos (ModA (OrA (OrA (RA, XA), YA), VU) /= 0) - 1;
+ -- Zero iff one or more argument addresses is not aligned, else all 1's
type Vector_Ptr is access all Vectors.Vector;
type Element_Ptr is access all Element;
- function VP is new Unchecked_Conversion (Address, Vector_Ptr);
- function EP is new Unchecked_Conversion (Address, Element_Ptr);
+ function VP is new Ada.Unchecked_Conversion (Address, Vector_Ptr);
+ function EP is new Ada.Unchecked_Conversion (Address, Element_Ptr);
- SA : Address := XA + ((Length + 0) / VU * VU
- and (Boolean'Pos (Unaligned) - Address'(1)));
+ SA : constant Address :=
+ AddA (XA, To_Address
+ ((Integer_Address (Length) / VI * VI) and Unaligned));
-- First address of argument X to start serial processing
begin
while XA < SA loop
VP (RA).all := Vector_Op (VP (XA).all, VP (YA).all);
- XA := XA + VU;
- YA := YA + VU;
- RA := RA + VU;
+ XA := AddA (XA, VU);
+ YA := AddA (YA, VU);
+ RA := AddA (RA, VU);
end loop;
while XA < X + Length loop
EP (RA).all := Element_Op (EP (XA).all, EP (YA).all);
- XA := XA + EU;
- YA := YA + EU;
- RA := RA + EU;
+ XA := AddA (XA, EU);
+ YA := AddA (YA, EU);
+ RA := AddA (RA, EU);
end loop;
end Binary_Operation;
XA : Address := X;
-- Address of next element to process in R and X
- Unaligned : constant Boolean := (RA or XA) mod VU /= 0;
- -- False iff one or more argument addresses is not aligned
+ VI : constant Integer_Address := To_Integer (VU);
+
+ Unaligned : constant Integer_Address :=
+ Boolean'Pos (ModA (OrA (RA, XA), VU) /= 0) - 1;
+ -- Zero iff one or more argument addresses is not aligned, else all 1's
type Vector_Ptr is access all Vectors.Vector;
type Element_Ptr is access all Element;
- function VP is new Unchecked_Conversion (Address, Vector_Ptr);
- function EP is new Unchecked_Conversion (Address, Element_Ptr);
+ function VP is new Ada.Unchecked_Conversion (Address, Vector_Ptr);
+ function EP is new Ada.Unchecked_Conversion (Address, Element_Ptr);
- SA : Address := XA + ((Length + 0) / VU * VU
- and (Boolean'Pos (Unaligned) - Address'(1)));
+ SA : constant Address :=
+ AddA (XA, To_Address
+ ((Integer_Address (Length) / VI * VI) and Unaligned));
-- First address of argument X to start serial processing
begin
while XA < SA loop
VP (RA).all := Vector_Op (VP (XA).all);
- XA := XA + VU;
- RA := RA + VU;
+ XA := AddA (XA, VU);
+ RA := AddA (RA, VU);
end loop;
while XA < X + Length loop
EP (RA).all := Element_Op (EP (XA).all);
- XA := XA + EU;
- RA := RA + EU;
+ XA := AddA (XA, EU);
+ RA := AddA (RA, EU);
end loop;
end Unary_Operation;
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