--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/PerfToolsSharedLibraries/Engine/SymbianInstructionLib/Arm/Instructions/Common/ArmInstructionUtils.cs	Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,126 @@
+/*
+* 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 System.Text.RegularExpressions;
+using System.IO;
+using SymbianStructuresLib.Arm.Registers;
+
+namespace SymbianInstructionLib.Arm.Instructions.Common
+{
+    internal static class ArmInstructionUtils
+    {
+        public static int SignExtend24BitTo32Bit( uint aImmediate )
+        {
+            int offset;
+            //
+            unchecked
+            {
+                if ( ( aImmediate & 0x00800000 ) == 0x00800000 )
+                {
+                    offset = (int) ( 0xff000000 | aImmediate );
+                }
+                else
+                {
+                    offset = (int) aImmediate;
+                }
+            }
+            //
+            offset <<= 2;
+            offset += 8; // pipeline
+            return offset;
+        }
+
+        public static List<TArmRegisterType> ExtractGPRegisterList( uint aEncodedList )
+        {
+            List<TArmRegisterType> ret = new List<TArmRegisterType>();
+            //
+            for ( int i = 15; i >= 0; i-- )
+            {
+                uint mask = (uint) ( 1 << i );
+                if ( ( aEncodedList & mask ) == mask )
+                {
+                    ret.Add( (TArmRegisterType) i );
+                }
+            }
+            //
+            return ret;
+        }
+    }
+
+    internal static class ThumbInstructionUtils
+    {
+        public static int SignExtend11BitTo32Bit( uint aImmediate )
+        {
+            int offset = SignExtend11BitTo32Bit( aImmediate, 1 );
+            offset += 4; // pipeline
+            return offset;
+        }
+
+        public static int SignExtend11BitTo32Bit( uint aImmediate, int aLeftShiftCount )
+        {
+            int offset;
+            //
+            unchecked
+            {
+                //  10  9  8  7  6  5  4  3  2  1  0
+                // ----------------------------------
+                //   1  0  0  0  0  0  0  0  0  0  0
+                if ( ( aImmediate & 0x00000400 ) == 0x00000400 )
+                {
+                    // 11111111111111111111100000000000
+                    //                      10000000000
+                    offset = (int) ( 0xFFFFF800 | aImmediate );
+                }
+                else
+                {
+                    offset = (int) aImmediate;
+                }
+            }
+            //
+            offset <<= aLeftShiftCount;
+            return offset;
+        }
+
+        public static int SignExtend8BitTo32Bit( uint aImmediate )
+        {
+            int offset;
+            //
+            unchecked
+            {
+                //  7  6  5  4  3  2  1  0
+                // ------------------------
+                //  1  0  0  0  0  0  0  0
+                if ( ( aImmediate & 0x00000080 ) == 0x00000080 )
+                {
+                    // 11111111111111111111111100000000
+                    //                         10000000
+                    offset = (int) ( 0xFFFFFF00 | aImmediate );
+                }
+                else
+                {
+                    offset = (int) aImmediate;
+                }
+            }
+            //
+            offset <<= 1;
+            offset += 4; // pipeline
+            return offset;
+        }
+    }
+}