text: /******************************************************************************
   *
   * Module Name: exoparg2 - AML execution - opcodes with 2 arguments
   *
   *****************************************************************************/
  
  /******************************************************************************
   *
   * 1. Copyright Notice
   *
   * Some or all of this work - Copyright (c) 1999 - 2021, Intel Corp.
   * All rights reserved.
   *
   * 2. License
   *
   * 2.1. This is your license from Intel Corp. under its intellectual property
   * rights. You may have additional license terms from the party that provided
   * you this software, covering your right to use that party's intellectual
   * property rights.
   *
   * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
   * copy of the source code appearing in this file ("Covered Code") an
   * irrevocable, perpetual, worldwide license under Intel's copyrights in the
   * base code distributed originally by Intel ("Original Intel Code") to copy,
   * make derivatives, distribute, use and display any portion of the Covered
   * Code in any form, with the right to sublicense such rights; and
   *
   * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
   * license (with the right to sublicense), under only those claims of Intel
   * patents that are infringed by the Original Intel Code, to make, use, sell,
   * offer to sell, and import the Covered Code and derivative works thereof
   * solely to the minimum extent necessary to exercise the above copyright
   * license, and in no event shall the patent license extend to any additions
   * to or modifications of the Original Intel Code. No other license or right
   * is granted directly or by implication, estoppel or otherwise;
   *
   * The above copyright and patent license is granted only if the following
   * conditions are met:
   *
   * 3. Conditions
   *
   * 3.1. Redistribution of Source with Rights to Further Distribute Source.
   * Redistribution of source code of any substantial portion of the Covered
   * Code or modification with rights to further distribute source must include
   * the above Copyright Notice, the above License, this list of Conditions,
   * and the following Disclaimer and Export Compliance provision. In addition,
   * Licensee must cause all Covered Code to which Licensee contributes to
   * contain a file documenting the changes Licensee made to create that Covered
   * Code and the date of any change. Licensee must include in that file the
   * documentation of any changes made by any predecessor Licensee. Licensee
   * must include a prominent statement that the modification is derived,
   * directly or indirectly, from Original Intel Code.
   *
   * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
   * Redistribution of source code of any substantial portion of the Covered
   * Code or modification without rights to further distribute source must
   * include the following Disclaimer and Export Compliance provision in the
   * documentation and/or other materials provided with distribution. In
   * addition, Licensee may not authorize further sublicense of source of any
   * portion of the Covered Code, and must include terms to the effect that the
   * license from Licensee to its licensee is limited to the intellectual
   * property embodied in the software Licensee provides to its licensee, and
   * not to intellectual property embodied in modifications its licensee may
   * make.
   *
   * 3.3. Redistribution of Executable. Redistribution in executable form of any
   * substantial portion of the Covered Code or modification must reproduce the
   * above Copyright Notice, and the following Disclaimer and Export Compliance
   * provision in the documentation and/or other materials provided with the
   * distribution.
   *
   * 3.4. Intel retains all right, title, and interest in and to the Original
   * Intel Code.
   *
   * 3.5. Neither the name Intel nor any other trademark owned or controlled by
   * Intel shall be used in advertising or otherwise to promote the sale, use or
   * other dealings in products derived from or relating to the Covered Code
   * without prior written authorization from Intel.
   *
   * 4. Disclaimer and Export Compliance
   *
   * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
   * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
   * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
   * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
   * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
   * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
   * PARTICULAR PURPOSE.
   *
   * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
   * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
   * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
   * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
   * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
   * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
   * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
   * LIMITED REMEDY.
   *
   * 4.3. Licensee shall not export, either directly or indirectly, any of this
   * software or system incorporating such software without first obtaining any
   * required license or other approval from the U. S. Department of Commerce or
   * any other agency or department of the United States Government. In the
   * event Licensee exports any such software from the United States or
   * re-exports any such software from a foreign destination, Licensee shall
   * ensure that the distribution and export/re-export of the software is in
   * compliance with all laws, regulations, orders, or other restrictions of the
   * U.S. Export Administration Regulations. Licensee agrees that neither it nor
   * any of its subsidiaries will export/re-export any technical data, process,
   * software, or service, directly or indirectly, to any country for which the
   * United States government or any agency thereof requires an export license,
   * other governmental approval, or letter of assurance, without first obtaining
   * such license, approval or letter.
   *
   *****************************************************************************
   *
   * Alternatively, you may choose to be licensed under the terms of the
   * following license:
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions, and the following disclaimer,
   *    without modification.
   * 2. Redistributions in binary form must reproduce at minimum a disclaimer
   *    substantially similar to the "NO WARRANTY" disclaimer below
   *    ("Disclaimer") and any redistribution must be conditioned upon
   *    including a substantially similar Disclaimer requirement for further
   *    binary redistribution.
   * 3. Neither the names of the above-listed copyright holders nor the names
   *    of any contributors may be used to endorse or promote products derived
   *    from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * Alternatively, you may choose to be licensed under the terms of the
   * GNU General Public License ("GPL") version 2 as published by the Free
   * Software Foundation.
   *
   *****************************************************************************/
  
  #include "acpi.h"
  #include "accommon.h"
  #include "acparser.h"
  #include "acinterp.h"
  #include "acevents.h"
  #include "amlcode.h"
  
  
  #define _COMPONENT          ACPI_EXECUTER
          ACPI_MODULE_NAME    ("exoparg2")
  
  
  /*!
   * Naming convention for AML interpreter execution routines.
   *
   * The routines that begin execution of AML opcodes are named with a common
   * convention based upon the number of arguments, the number of target operands,
   * and whether or not a value is returned:
   *
   *      AcpiExOpcode_xA_yT_zR
   *
   * Where:
   *
   * xA - ARGUMENTS:    The number of arguments (input operands) that are
   *                    required for this opcode type (1 through 6 args).
   * yT - TARGETS:      The number of targets (output operands) that are required
   *                    for this opcode type (0, 1, or 2 targets).
   * zR - RETURN VALUE: Indicates whether this opcode type returns a value
   *                    as the function return (0 or 1).
   *
   * The AcpiExOpcode* functions are called via the Dispatcher component with
   * fully resolved operands.
  !*/
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiExOpcode_2A_0T_0R
   *
   * PARAMETERS:  WalkState           - Current walk state
   *
   * RETURN:      Status
   *
   * DESCRIPTION: Execute opcode with two arguments, no target, and no return
   *              value.
   *
   * ALLOCATION:  Deletes both operands
   *
   ******************************************************************************/
  
  ACPI_STATUS
  AcpiExOpcode_2A_0T_0R (
      ACPI_WALK_STATE         *WalkState)
  {
      ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
      ACPI_NAMESPACE_NODE     *Node;
      UINT32                  Value;
      ACPI_STATUS             Status = AE_OK;
  
  
      ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_0T_0R,
              AcpiPsGetOpcodeName (WalkState->Opcode));
  
  
      /* Examine the opcode */
  
      switch (WalkState->Opcode)
      {
      case AML_NOTIFY_OP:         /* Notify (NotifyObject, NotifyValue) */
  
          /* The first operand is a namespace node */
  
          Node = (ACPI_NAMESPACE_NODE *) Operand[0];
  
          /* Second value is the notify value */
  
          Value = (UINT32) Operand[1]->Integer.Value;
  
          /* Are notifies allowed on this object? */
  
          if (!AcpiEvIsNotifyObject (Node))
          {
              ACPI_ERROR ((AE_INFO,
                  "Unexpected notify object type [%s]",
                  AcpiUtGetTypeName (Node->Type)));
  
              Status = AE_AML_OPERAND_TYPE;
              break;
          }
  
          /*
           * Dispatch the notify to the appropriate handler
           * NOTE: the request is queued for execution after this method
           * completes. The notify handlers are NOT invoked synchronously
           * from this thread -- because handlers may in turn run other
           * control methods.
           */
          Status = AcpiEvQueueNotifyRequest (Node, Value);
          break;
  
      default:
  
          ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
              WalkState->Opcode));
          Status = AE_AML_BAD_OPCODE;
      }
  
      return_ACPI_STATUS (Status);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiExOpcode_2A_2T_1R
   *
   * PARAMETERS:  WalkState           - Current walk state
   *
   * RETURN:      Status
   *
   * DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets
   *              and one implicit return value.
   *
   ******************************************************************************/
  
  ACPI_STATUS
  AcpiExOpcode_2A_2T_1R (
      ACPI_WALK_STATE         *WalkState)
  {
      ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
      ACPI_OPERAND_OBJECT     *ReturnDesc1 = NULL;
      ACPI_OPERAND_OBJECT     *ReturnDesc2 = NULL;
      ACPI_STATUS             Status;
  
  
      ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_2T_1R,
          AcpiPsGetOpcodeName (WalkState->Opcode));
  
  
      /* Execute the opcode */
  
      switch (WalkState->Opcode)
      {
      case AML_DIVIDE_OP:
  
          /* Divide (Dividend, Divisor, RemainderResult QuotientResult) */
  
          ReturnDesc1 = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
          if (!ReturnDesc1)
          {
              Status = AE_NO_MEMORY;
              goto Cleanup;
          }
  
          ReturnDesc2 = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
          if (!ReturnDesc2)
          {
              Status = AE_NO_MEMORY;
              goto Cleanup;
          }
  
          /* Quotient to ReturnDesc1, remainder to ReturnDesc2 */
  
          Status = AcpiUtDivide (
              Operand[0]->Integer.Value,
              Operand[1]->Integer.Value,
              &ReturnDesc1->Integer.Value,
              &ReturnDesc2->Integer.Value);
          if (ACPI_FAILURE (Status))
          {
              goto Cleanup;
          }
          break;
  
      default:
  
          ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
              WalkState->Opcode));
  
          Status = AE_AML_BAD_OPCODE;
          goto Cleanup;
      }
  
      /* Store the results to the target reference operands */
  
      Status = AcpiExStore (ReturnDesc2, Operand[2], WalkState);
      if (ACPI_FAILURE (Status))
      {
          goto Cleanup;
      }
  
      Status = AcpiExStore (ReturnDesc1, Operand[3], WalkState);
      if (ACPI_FAILURE (Status))
      {
          goto Cleanup;
      }
  
  Cleanup:
      /*
       * Since the remainder is not returned indirectly, remove a reference to
       * it. Only the quotient is returned indirectly.
       */
      AcpiUtRemoveReference (ReturnDesc2);
  
      if (ACPI_FAILURE (Status))
      {
          /* Delete the return object */
  
          AcpiUtRemoveReference (ReturnDesc1);
      }
  
      /* Save return object (the remainder) on success */
  
      else
      {
          WalkState->ResultObj = ReturnDesc1;
      }
  
      return_ACPI_STATUS (Status);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiExOpcode_2A_1T_1R
   *
   * PARAMETERS:  WalkState           - Current walk state
   *
   * RETURN:      Status
   *
   * DESCRIPTION: Execute opcode with two arguments, one target, and a return
   *              value.
   *
   ******************************************************************************/
  
  ACPI_STATUS
  AcpiExOpcode_2A_1T_1R (
      ACPI_WALK_STATE         *WalkState)
  {
      ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
      ACPI_OPERAND_OBJECT     *ReturnDesc = NULL;
      UINT64                  Index;
      ACPI_STATUS             Status = AE_OK;
      ACPI_SIZE               Length = 0;
  
  
      ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_1T_1R,
          AcpiPsGetOpcodeName (WalkState->Opcode));
  
  
      /* Execute the opcode */
  
      if (WalkState->OpInfo->Flags & AML_MATH)
      {
          /* All simple math opcodes (add, etc.) */
  
          ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
          if (!ReturnDesc)
          {
              Status = AE_NO_MEMORY;
              goto Cleanup;
          }
  
          ReturnDesc->Integer.Value = AcpiExDoMathOp (
              WalkState->Opcode,
              Operand[0]->Integer.Value,
              Operand[1]->Integer.Value);
          goto StoreResultToTarget;
      }
  
      switch (WalkState->Opcode)
      {
      case AML_MOD_OP: /* Mod (Dividend, Divisor, RemainderResult (ACPI 2.0) */
  
          ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
          if (!ReturnDesc)
          {
              Status = AE_NO_MEMORY;
              goto Cleanup;
          }
  
          /* ReturnDesc will contain the remainder */
  
          Status = AcpiUtDivide (
              Operand[0]->Integer.Value,
              Operand[1]->Integer.Value,
              NULL,
              &ReturnDesc->Integer.Value);
          break;
  
      case AML_CONCATENATE_OP: /* Concatenate (Data1, Data2, Result) */
  
          Status = AcpiExDoConcatenate (
              Operand[0], Operand[1], &ReturnDesc, WalkState);
          break;
  
      case AML_TO_STRING_OP: /* ToString (Buffer, Length, Result) (ACPI 2.0) */
          /*
           * Input object is guaranteed to be a buffer at this point (it may have
           * been converted.)  Copy the raw buffer data to a new object of
           * type String.
           */
  
          /*
           * Get the length of the new string. It is the smallest of:
           * 1) Length of the input buffer
           * 2) Max length as specified in the ToString operator
           * 3) Length of input buffer up to a zero byte (null terminator)
           *
           * NOTE: A length of zero is ok, and will create a zero-length, null
           *       terminated string.
           */
          while ((Length < Operand[0]->Buffer.Length) &&  /* Length of input buffer */
                 (Length < Operand[1]->Integer.Value) &&  /* Length operand */
                 (Operand[0]->Buffer.Pointer[Length]))    /* Null terminator */
          {
              Length++;
          }
  
          /* Allocate a new string object */
  
          ReturnDesc = AcpiUtCreateStringObject (Length);
          if (!ReturnDesc)
          {
              Status = AE_NO_MEMORY;
              goto Cleanup;
          }
  
          /*
           * Copy the raw buffer data with no transform.
           * (NULL terminated already)
           */
          memcpy (ReturnDesc->String.Pointer,
              Operand[0]->Buffer.Pointer, Length);
          break;
  
      case AML_CONCATENATE_TEMPLATE_OP:
  
          /* ConcatenateResTemplate (Buffer, Buffer, Result) (ACPI 2.0) */
  
          Status = AcpiExConcatTemplate (
              Operand[0], Operand[1], &ReturnDesc, WalkState);
          break;
  
      case AML_INDEX_OP:              /* Index (Source Index Result) */
  
          /* Create the internal return object */
  
          ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_REFERENCE);
          if (!ReturnDesc)
          {
              Status = AE_NO_MEMORY;
              goto Cleanup;
          }
  
          /* Initialize the Index reference object */
  
          Index = Operand[1]->Integer.Value;
          ReturnDesc->Reference.Value = (UINT32) Index;
          ReturnDesc->Reference.Class = ACPI_REFCLASS_INDEX;
  
          /*
           * At this point, the Source operand is a String, Buffer, or Package.
           * Verify that the index is within range.
           */
          switch ((Operand[0])->Common.Type)
          {
          case ACPI_TYPE_STRING:
  
              if (Index >= Operand[0]->String.Length)
              {
                  Length = Operand[0]->String.Length;
                  Status = AE_AML_STRING_LIMIT;
              }
  
              ReturnDesc->Reference.TargetType = ACPI_TYPE_BUFFER_FIELD;
              ReturnDesc->Reference.IndexPointer =
                  &(Operand[0]->Buffer.Pointer [Index]);
              break;
  
          case ACPI_TYPE_BUFFER:
  
              if (Index >= Operand[0]->Buffer.Length)
              {
                  Length = Operand[0]->Buffer.Length;
                  Status = AE_AML_BUFFER_LIMIT;
              }
  
              ReturnDesc->Reference.TargetType = ACPI_TYPE_BUFFER_FIELD;
              ReturnDesc->Reference.IndexPointer =
                  &(Operand[0]->Buffer.Pointer [Index]);
              break;
  
          case ACPI_TYPE_PACKAGE:
  
              if (Index >= Operand[0]->Package.Count)
              {
                  Length = Operand[0]->Package.Count;
                  Status = AE_AML_PACKAGE_LIMIT;
              }
  
              ReturnDesc->Reference.TargetType = ACPI_TYPE_PACKAGE;
              ReturnDesc->Reference.Where =
                  &Operand[0]->Package.Elements [Index];
              break;
  
          default:
  
              ACPI_ERROR ((AE_INFO,
                  "Invalid object type: %X", (Operand[0])->Common.Type));
              Status = AE_AML_INTERNAL;
              goto Cleanup;
          }
  
          /* Failure means that the Index was beyond the end of the object */
  
          if (ACPI_FAILURE (Status))
          {
              ACPI_BIOS_EXCEPTION ((AE_INFO, Status,
                  "Index (0x%X%8.8X) is beyond end of object (length 0x%X)",
                  ACPI_FORMAT_UINT64 (Index), (UINT32) Length));
              goto Cleanup;
          }
  
          /*
           * Save the target object and add a reference to it for the life
           * of the index
           */
          ReturnDesc->Reference.Object = Operand[0];
          AcpiUtAddReference (Operand[0]);
  
          /* Store the reference to the Target */
  
          Status = AcpiExStore (ReturnDesc, Operand[2], WalkState);
  
          /* Return the reference */
  
          WalkState->ResultObj = ReturnDesc;
          goto Cleanup;
  
      default:
  
          ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
              WalkState->Opcode));
          Status = AE_AML_BAD_OPCODE;
          break;
      }
  
  
  StoreResultToTarget:
  
      if (ACPI_SUCCESS (Status))
      {
          /*
           * Store the result of the operation (which is now in ReturnDesc) into
           * the Target descriptor.
           */
          Status = AcpiExStore (ReturnDesc, Operand[2], WalkState);
          if (ACPI_FAILURE (Status))
          {
              goto Cleanup;
          }
  
          if (!WalkState->ResultObj)
          {
              WalkState->ResultObj = ReturnDesc;
          }
      }
  
  
  Cleanup:
  
      /* Delete return object on error */
  
      if (ACPI_FAILURE (Status))
      {
          AcpiUtRemoveReference (ReturnDesc);
          WalkState->ResultObj = NULL;
      }
  
      return_ACPI_STATUS (Status);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiExOpcode_2A_0T_1R
   *
   * PARAMETERS:  WalkState           - Current walk state
   *
   * RETURN:      Status
   *
   * DESCRIPTION: Execute opcode with 2 arguments, no target, and a return value
   *
   ******************************************************************************/
  
  ACPI_STATUS
  AcpiExOpcode_2A_0T_1R (
      ACPI_WALK_STATE         *WalkState)
  {
      ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
      ACPI_OPERAND_OBJECT     *ReturnDesc = NULL;
      ACPI_STATUS             Status = AE_OK;
      BOOLEAN                 LogicalResult = FALSE;
  
  
      ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_0T_1R,
          AcpiPsGetOpcodeName (WalkState->Opcode));
  
  
      /* Create the internal return object */
  
      ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
      if (!ReturnDesc)
      {
          Status = AE_NO_MEMORY;
          goto Cleanup;
      }
  
      /* Execute the Opcode */
  
      if (WalkState->OpInfo->Flags & AML_LOGICAL_NUMERIC)
      {
          /* LogicalOp  (Operand0, Operand1) */
  
          Status = AcpiExDoLogicalNumericOp (WalkState->Opcode,
              Operand[0]->Integer.Value, Operand[1]->Integer.Value,
              &LogicalResult);
          goto StoreLogicalResult;
      }
      else if (WalkState->OpInfo->Flags & AML_LOGICAL)
      {
          /* LogicalOp  (Operand0, Operand1) */
  
          Status = AcpiExDoLogicalOp (WalkState->Opcode, Operand[0],
              Operand[1], &LogicalResult);
          goto StoreLogicalResult;
      }
  
      switch (WalkState->Opcode)
      {
      case AML_ACQUIRE_OP:            /* Acquire (MutexObject, Timeout) */
  
          Status = AcpiExAcquireMutex (Operand[1], Operand[0], WalkState);
          if (Status == AE_TIME)
          {
              LogicalResult = TRUE;       /* TRUE = Acquire timed out */
              Status = AE_OK;
          }
          break;
  
  
      case AML_WAIT_OP:               /* Wait (EventObject, Timeout) */
  
          Status = AcpiExSystemWaitEvent (Operand[1], Operand[0]);
          if (Status == AE_TIME)
          {
              LogicalResult = TRUE;       /* TRUE, Wait timed out */
              Status = AE_OK;
          }
          break;
  
      default:
  
          ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
              WalkState->Opcode));
  
          Status = AE_AML_BAD_OPCODE;
          goto Cleanup;
      }
  
  
  StoreLogicalResult:
      /*
       * Set return value to according to LogicalResult. logical TRUE (all ones)
       * Default is FALSE (zero)
       */
      if (LogicalResult)
      {
          ReturnDesc->Integer.Value = ACPI_UINT64_MAX;
      }
  
  Cleanup:
  
      /* Delete return object on error */
  
      if (ACPI_FAILURE (Status))
      {
          AcpiUtRemoveReference (ReturnDesc);
      }
  
      /* Save return object on success */
  
      else
      {
          WalkState->ResultObj = ReturnDesc;
      }
  
      return_ACPI_STATUS (Status);
  }
  