--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/PerfToolsSharedLibraries/Engine/SymbianETMLib/Common/State/Implementations/ETMDecodeStateCycleCount.cs	Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,119 @@
+/*
+* 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 SymbianETMLib.Common.Types;
+using SymbianETMLib.Common.Packets;
+using SymbianETMLib.Common.Utilities;
+
+namespace SymbianETMLib.Common.State
+{
+    public class ETMDecodeStateCycleCount : ETMDecodeState
+    {
+        #region Constructors
+        public ETMDecodeStateCycleCount( ETMStateData aManager )
+            : base( aManager )
+        {
+        }
+        #endregion
+
+        #region API
+        public override ETMDecodeState HandleByte( SymByte aByte )
+        {
+            ETMDecodeState nextState = new ETMDecodeStateSynchronized( base.StateData );
+
+            ETMPcktCycleCount cycle = new ETMPcktCycleCount( aByte );
+
+            // Always save the byte
+            iPreviousBytes.Add( aByte );
+
+            // Is the top bit set? if so, then another branch packet follows.
+            // If not, we're done.
+            if ( iPreviousBytes.Count == 5 )
+            {
+                // Have obtained 5 bytes or then last byte of smaller run.
+                Flush();
+            }
+            else if ( cycle.MoreToCome )
+            {
+                nextState = this;
+            }
+            else
+            {
+                // Have obtained last byte of smaller run.
+                Flush();
+            }
+
+            // Done.
+            return nextState;
+        }
+        #endregion
+
+        #region Properties
+        protected bool IsFullBranch
+        {
+            get { return iPreviousBytes.Count == 5; }
+        }
+        #endregion
+
+        #region Internal methods
+        private void Flush()
+        {
+            // If we have a full 5 bytes, then mask off the top bits
+            // from the last byte because these are reserved.
+            int count = iPreviousBytes.Count;
+            if ( count == 5 )
+            {
+                iPreviousBytes[ 4 ].Value = (byte) ( iPreviousBytes[ 4 ].Value & 0xF );
+            }
+
+            // Build final 32 bit value
+            uint counter = 0;
+            for ( int shift = 0; shift < count; shift++ )
+            {
+                int shiftBits = shift * 8;
+                uint v = (uint) ( iPreviousBytes[ shift ] << shiftBits );
+                counter |= v;
+            }
+        }
+
+        private void Trace( uint aCounter )
+        {
+            base.DbgTrace( "CYCLE_COUNT", string.Format( " - {0}", aCounter ) );
+        }
+        #endregion
+
+        #region Internal constants
+        protected const string KFifthByteMask_NormalStateBranchAddressArm               = "00001xxx";
+        protected const string KFifthByteMask_NormalStateBranchAddressThumb             = "0001xxxx";
+        protected const string KFifthByteMask_NormalStateBranchAddressJazelle           = "001xxxxx";
+        protected const string KFifthByteMask_Reserved1                                 = "00000xxx";
+        protected const string KFifthByteMask_StateBranchWithFollowingExceptionArm      = "01001xxx";
+        protected const string KFifthByteMask_StateBranchWithFollowingExceptionThumb    = "0101xxxx";
+        protected const string KFifthByteMask_StateBranchWithFollowingExceptionJazelle  = "011xxxxx";
+        protected const string KFifthByteMask_Reserved2                                 = "01000xxx";
+        protected const string KFifthByteMask_ExceptionInArmState                       = "1xxxxxxx";
+        #endregion
+
+        #region Data members
+        private List<SymByte> iPreviousBytes = new List<SymByte>();
+        #endregion
+    }
+}