--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/PerfToolsSharedLibraries/Engine/SymbianInstructionLib/Arm/Instructions/Thumb/DataProcessing/Bases/Thumb_AddOrSubtract_2Regs.cs	Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,106 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+* 
+* Description:
+*
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+using SymbianUtils.BasicTypes;
+using SymbianStructuresLib.Arm.Registers;
+using SymbianStructuresLib.Arm.Instructions;
+using SymbianInstructionLib.Arm.Instructions.Common;
+
+namespace SymbianInstructionLib.Arm.Instructions.Thumb.DataProcessing
+{
+    public abstract class Thumb_AddOrSubtract_2Regs : Thumb_AddOrSubtract
+    {
+        #region Constructors
+        protected Thumb_AddOrSubtract_2Regs()
+        {
+        }
+        #endregion
+
+        #region From Thumb_AddOrSubtract
+        public override TArmDataProcessingType OperationType
+        {
+            get
+            {
+                TArmDataProcessingType ret = TArmDataProcessingType.ADD;
+                //
+                if ( base.AIRawValue[ 9 ] == SymBit.ESet )
+                {
+                    ret = TArmDataProcessingType.SUB;
+                }
+                //
+                return ret;
+            }
+        }
+        #endregion
+
+        #region From ArmBaseInstruction
+        protected override bool DoQueryInvolvementAsSource( TArmRegisterType aRegister )
+        {
+            TArmRegisterType reg = this.Rn;
+            return ( aRegister == reg );
+        }
+        #endregion
+
+        #region Properties
+        public TArmRegisterType Rn
+        {
+            get
+            {
+                TArmRegisterType ret = (TArmRegisterType) RnByte;
+                return ret;
+            }
+        }
+
+        public override TArmRegisterType Rd
+        {
+            get
+            {
+                TArmRegisterType ret = (TArmRegisterType) RdByte;
+                return ret;
+            }
+        }
+        #endregion
+
+        #region Internal methods
+        protected byte RnByte
+        {
+            get
+            {
+                byte ret = (byte) KMaskRn.Apply( base.AIRawValue );
+                return ret;
+            }
+        }
+
+        protected byte RdByte
+        {
+            get
+            {
+                byte ret = (byte) KMaskRd.Apply( base.AIRawValue );
+                return ret;
+            }
+        }
+        #endregion
+
+        #region Data members
+        private static readonly SymMask KMaskRn = new SymMask( 0x38, SymMask.TShiftDirection.ERight, 3 );
+        private static readonly SymMask KMaskRd = new SymMask( 0x7 );
+        #endregion
+    }
+}
+