--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/PerfToolsSharedLibraries/Engine/SymbianInstructionLib/Arm/Instructions/Arm/DataTransfer/Arm_LDM.cs	Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,152 @@
+/*
+* 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.Arm.DataTransfer
+{
+    [ArmRefAttribute( "A4.1.20 LDM(1) + A5.4.1 Encoding", "LDM{<cond>}<addressing_mode> <Rn>{!}, <registers>" )]
+    public class Arm_LDM : Arm_LoadOrStoreMultiple_GP
+    {
+        #region Enumerations
+        public enum TType
+        {
+            ETypeNotSupported = -1,
+            ETypeNonEmptyGP = 0,
+            ETypeUserModeWhenInPrivilaged,
+            ETypeGPAndPCAndUpdateCPSR
+        }
+        #endregion
+
+        #region Constructors
+        public Arm_LDM()
+        {
+            //  4    3                  4               16 bits
+            // ---------------------------------------------------
+            // cond 100 P U S W L       Rn          register list
+            // 1110 100 0 1 0 1 1     1101         1000111111110000
+            //
+            // P  = indicates that the word addressed by Rn is included in the range of memory
+            //      locations accessed, lying at the top (U==0) or bottom (U==1) of that range.
+            //
+            // U  = Indicates that the transfer is made upwards (U==1) or downwards (U==0) from 
+            //      the base register.
+            //
+            // S  = For LDMs that load the PC, the S bit indicates that the CPSR is loaded 
+            //      from the SPSR.
+            //
+            // W  = Indicates that the base register is updated after the transfer. The base 
+            //      register is incremented (U==1) or decremented (U==0) by four times the 
+            //      number of registers in the register list.
+            //
+            // L  = Distinguishes between Load (L==1) and Store (L==0) instructions.
+            //
+            // Rn = Specifies the base register used by <addressing_mode>. Using R15 as 
+            //      the base register <Rn> gives an UNPREDICTABLE result.
+            // 
+            // This mask translates to "LDM's that load PC from SP"
+            //        1110 100 01011 1101    1000111111110000
+            base.SetMask( "####" + "100" + "##" + "##1" + "####" + "######## ########" );
+        }
+        #endregion
+
+        #region From ArmInstruction
+        public override bool Matches( uint aOpCode )
+        {
+            bool match = base.Matches( aOpCode );
+            if ( match )
+            {
+                TType type = StaticInternalType( aOpCode );
+                match = ( type != TType.ETypeNotSupported );
+            }
+            return match;
+        }
+        #endregion
+
+        #region From Arm_LoadOrStore
+        public override TArmDataTransferType DataTransferType
+        {
+            get { return TArmDataTransferType.ELoad; }
+        }
+        #endregion
+
+        #region Properties
+        public TType Type
+        {
+            get { return iType; }
+        }
+        #endregion
+
+        #region From ArmBaseInstruction
+        protected override void OnRawValueAssigned()
+        {
+            base.OnRawValueAssigned();
+            iType = InternalType;
+        }
+        #endregion
+
+        #region Internal methods
+        private new SymBit SBit // Hide
+        {
+            get { return SymBit.EClear; }
+        }
+
+        private TType InternalType
+        {
+            get
+            {
+                uint raw = base.AIRawValue;
+                TType ret = StaticInternalType( raw );
+                return ret;
+            }
+        }
+
+        private static TType StaticInternalType( uint aRaw )
+        {
+            TType ret = TType.ETypeNotSupported;
+            //
+            if ( KLDM1.IsMatch( aRaw ) )
+            {
+                ret = TType.ETypeNonEmptyGP;
+            }
+            else if ( KLDM2.IsMatch( aRaw ) )
+            {
+                ret = TType.ETypeUserModeWhenInPrivilaged;
+            }
+            else if ( KLDM3.IsMatch( aRaw ) )
+            {
+                ret = TType.ETypeGPAndPCAndUpdateCPSR;
+            }
+            //
+            return ret;
+        }
+        #endregion
+
+        #region Data members
+        private TType iType = TType.ETypeNotSupported;
+        private static readonly SymMask KLDM1 = new SymMask( "####" + "100" + "##" + "0#1" + "####" + "######## ########" );
+        private static readonly SymMask KLDM2 = new SymMask( "####" + "100" + "##" + "101" + "####" + "0####### ########" );
+        private static readonly SymMask KLDM3 = new SymMask( "####" + "100" + "##" + "1#1" + "####" + "1####### ########" );
+        #endregion
+    }
+}
+