/*

* 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

{

    public abstract class Arm_LoadOrStoreMultiple_GP : Arm_LoadOrStoreMultiple

    {

        #region Constructors

        protected Arm_LoadOrStoreMultiple_GP()

        {

        }

        #endregion

        #region From ArmBaseInstruction

        protected override bool DoQueryInvolvementAsSource( TArmRegisterType aRegister )

        {

            TArmDataTransferType type = this.DataTransferType;

            //

            bool ret = base.DoQueryInvolvementAsSource( aRegister );

            if ( ret == false && type == TArmDataTransferType.EStore )

            {

                // STMFD R13!, {R0 - R12, LR}

                // r13 = dest, r0->r12, r14 are source registers

                List<TArmRegisterType> regs = this.RegistersAsList;

                ret = regs.Contains( aRegister );

            }

            //

            return ret;

        }

        protected override bool DoQueryInvolvementAsDestination( TArmRegisterType aRegister )

        {

            TArmDataTransferType type = this.DataTransferType;

            //

            bool ret = base.DoQueryInvolvementAsDestination( aRegister );

            if ( ret == false && type == TArmDataTransferType.ELoad )

            {

                // LDMFD R13!, {R0 - R12, PC}

                // r13 = source, r0->r12, r15 are destination registers

                List<TArmRegisterType> regs = this.RegistersAsList;

                ret = regs.Contains( aRegister );

            }

            //

            return ret;

        }

        #endregion

        #region API

        #endregion

        #region Properties

        public bool AffectsPC

        {

            get

            {

                SymBit pcBit = SymBitUtils.GetBit( base.AIRawValue, 15 );

                return ( pcBit == SymBit.ESet );

            }

        }

        public override TArmRegisterType BaseRegister

        {

            get

            {

                SymMask mask = new SymMask( 0xF << 16, SymMask.TShiftDirection.ERight, 16 );

                TArmRegisterType ret = (TArmRegisterType) mask.Apply( base.AIRawValue );

                return ret;

            }

        }

        public TArmRegisterType[] Registers

        {

            get

            {

                TArmRegisterType[] list = RegistersAsList.ToArray();

                return list;

            }

        }

        public TArmInstructionAddressingMode AddressingMode

        {

            get

            {

                SymMask mask = new SymMask( 3u << 23, SymMask.TShiftDirection.ERight, 23 );

                TArmInstructionAddressingMode mode = (TArmInstructionAddressingMode) mask.Apply( base.AIRawValue );

                return mode;

            }

        }

        #endregion

        #region Internal methods

        private List<TArmRegisterType> RegistersAsList

        {

            get

            {

                List<TArmRegisterType> list = ArmInstructionUtils.ExtractGPRegisterList( base.AIRawValue & 0x0000FFFF );

                return list;

            }

        }

        #endregion

        #region Data members

        #endregion

    }

}