1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 * 

    14 * Description:

    15 *

    16 */

    17 using System;

    18 using System.Collections.Generic;

    19 using System.Text;

    20 using SymbianUtils.BasicTypes;

    21 using SymbianStructuresLib.Arm.Registers;

    22 using SymbianStructuresLib.Arm.Instructions;

    23 using SymbianInstructionLib.Arm.Instructions.Common;

    24 

    25 namespace SymbianInstructionLib.Arm.Instructions.Thumb.DataProcessing

    26 {

    27     [ArmRef( "A7.1.4 ADD (2)",  "ADD <Rd>, #<immed_8>" )]

    28     [ArmRef( "A7.1.66 SUB (2)", "SUB <Rd>, #<immed_8>" )]

    29     public class Thumb_AddOrSubtract_Large : Thumb_AddOrSubtract

    30     {

    31         #region Constructors

    32         public Thumb_AddOrSubtract_Large()

    33         {

    34             //                     Type    Rd     immed_8

    35             base.SetMask( "0011" + "#" + "###" + "########" );

    36         }

    37         #endregion

    38 

    39         #region From ArmBaseInstruction

    40         protected override bool DoQueryInvolvementAsSource( TArmRegisterType aRegister )

    41         {

    42             // Rd acts as source and destination

    43             TArmRegisterType reg = this.Rd;

    44             return ( aRegister == reg );

    45         }

    46         #endregion

    47 

    48         #region From Thumb_AddOrSubtract

    49         public override TArmDataProcessingType OperationType

    50         {

    51             get

    52             {

    53                 TArmDataProcessingType ret = TArmDataProcessingType.ADD;

    54                 //

    55                 if ( base.AIRawValue[ 11 ] == SymBit.ESet )

    56                 {

    57                     ret = TArmDataProcessingType.SUB;

    58                 }

    59                 //

    60                 return ret;

    61             }

    62         }

    63 

    64         public override TArmRegisterType Rd

    65         {

    66             get

    67             {

    68                 TArmRegisterType ret = (TArmRegisterType) KMaskRd.Apply( base.AIRawValue );

    69                 return ret;

    70             }

    71         }

    72 

    73         public override uint Immediate

    74         {

    75             get

    76             {

    77                 uint ret = ( base.AIRawValue & 0xFF );

    78                 return ret;

    79             }

    80         }

    81 

    82         public override bool SuppliesImmediate

    83         {

    84             get { return true; }

    85         }

    86         #endregion

    87 

    88         #region Properties

    89         #endregion

    90 

    91         #region Internal methods

    92         #endregion

    93 

    94         #region Data members

    95         private static readonly SymMask KMaskRd = new SymMask( 0x700, SymMask.TShiftDirection.ERight, 8 );

    96         #endregion

    97     }

    98 }

    99