text: 
  /******************************************************************************
   *
   * Module Name: aslopcode - AML opcode generation
   *
   *****************************************************************************/
  
  /******************************************************************************
   *
   * 1. Copyright Notice
   *
   * Some or all of this work - Copyright (c) 1999 - 2012, 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.
   *
   *****************************************************************************/
  
  
  #include "aslcompiler.h"
  #include "aslcompiler.y.h"
  #include "amlcode.h"
  
  #define _COMPONENT          ACPI_COMPILER
          ACPI_MODULE_NAME    ("aslopcodes")
  
  
  /* Local prototypes */
  
  static void
  OpcDoAccessAs (
      ACPI_PARSE_OBJECT       *Op);
  
  static void
  OpcDoConnection (
      ACPI_PARSE_OBJECT       *Op);
  
  static void
  OpcDoUnicode (
      ACPI_PARSE_OBJECT       *Op);
  
  static void
  OpcDoEisaId (
      ACPI_PARSE_OBJECT       *Op);
  
  static void
  OpcDoUuId (
      ACPI_PARSE_OBJECT       *Op);
  
  
  /*******************************************************************************
   *
   * FUNCTION:    OpcAmlOpcodeUpdateWalk
   *
   * PARAMETERS:  ASL_WALK_CALLBACK
   *
   * RETURN:      Status
   *
   * DESCRIPTION: Opcode update walk, ascending callback
   *
   ******************************************************************************/
  
  ACPI_STATUS
  OpcAmlOpcodeUpdateWalk (
      ACPI_PARSE_OBJECT       *Op,
      UINT32                  Level,
      void                    *Context)
  {
  
      /*
       * Handle the Package() case where the actual opcode cannot be determined
       * until the PackageLength operand has been folded and minimized.
       * (PackageOp versus VarPackageOp)
       *
       * This is (as of ACPI 3.0) the only case where the AML opcode can change
       * based upon the value of a parameter.
       *
       * The parser always inserts a VarPackage opcode, which can possibly be
       * optimized to a Package opcode.
       */
      if (Op->Asl.ParseOpcode == PARSEOP_VAR_PACKAGE)
      {
          OpnDoPackage (Op);
      }
  
      return (AE_OK);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    OpcAmlOpcodeWalk
   *
   * PARAMETERS:  ASL_WALK_CALLBACK
   *
   * RETURN:      Status
   *
   * DESCRIPTION: Parse tree walk to generate both the AML opcodes and the AML
   *              operands.
   *
   ******************************************************************************/
  
  ACPI_STATUS
  OpcAmlOpcodeWalk (
      ACPI_PARSE_OBJECT       *Op,
      UINT32                  Level,
      void                    *Context)
  {
  
      TotalParseNodes++;
  
      OpcGenerateAmlOpcode (Op);
      OpnGenerateAmlOperands (Op);
      return (AE_OK);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    OpcGetIntegerWidth
   *
   * PARAMETERS:  Op          - DEFINITION BLOCK op
   *
   * RETURN:      none
   *
   * DESCRIPTION: Extract integer width from the table revision
   *
   ******************************************************************************/
  
  void
  OpcGetIntegerWidth (
      ACPI_PARSE_OBJECT       *Op)
  {
      ACPI_PARSE_OBJECT       *Child;
  
  
      if (!Op)
      {
          return;
      }
  
      if (Gbl_RevisionOverride)
      {
          AcpiUtSetIntegerWidth (Gbl_RevisionOverride);
      }
      else
      {
          Child = Op->Asl.Child;
          Child = Child->Asl.Next;
          Child = Child->Asl.Next;
  
          /* Use the revision to set the integer width */
  
          AcpiUtSetIntegerWidth ((UINT8) Child->Asl.Value.Integer);
      }
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    OpcSetOptimalIntegerSize
   *
   * PARAMETERS:  Op        - A parse tree node
   *
   * RETURN:      Integer width, in bytes.  Also sets the node AML opcode to the
   *              optimal integer AML prefix opcode.
   *
   * DESCRIPTION: Determine the optimal AML encoding of an integer.  All leading
   *              zeros can be truncated to squeeze the integer into the
   *              minimal number of AML bytes.
   *
   ******************************************************************************/
  
  UINT32
  OpcSetOptimalIntegerSize (
      ACPI_PARSE_OBJECT       *Op)
  {
  
  #if 0
      /*
       * TBD: - we don't want to optimize integers in the block header, but the
       * code below does not work correctly.
       */
      if (Op->Asl.Parent &&
          Op->Asl.Parent->Asl.Parent &&
         (Op->Asl.Parent->Asl.Parent->Asl.ParseOpcode == PARSEOP_DEFINITIONBLOCK))
      {
          return 0;
      }
  #endif
  
      /*
       * Check for the special AML integers first - Zero, One, Ones.
       * These are single-byte opcodes that are the smallest possible
       * representation of an integer.
       *
       * This optimization is optional.
       */
      if (Gbl_IntegerOptimizationFlag)
      {
          switch (Op->Asl.Value.Integer)
          {
          case 0:
  
              Op->Asl.AmlOpcode = AML_ZERO_OP;
              AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION,
                  Op, "Zero");
              return 1;
  
          case 1:
  
              Op->Asl.AmlOpcode = AML_ONE_OP;
              AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION,
                  Op, "One");
              return 1;
  
          case ACPI_UINT32_MAX:
  
              /* Check for table integer width (32 or 64) */
  
              if (AcpiGbl_IntegerByteWidth == 4)
              {
                  Op->Asl.AmlOpcode = AML_ONES_OP;
                  AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION,
                      Op, "Ones");
                  return 1;
              }
              break;
  
          case ACPI_UINT64_MAX:
  
              /* Check for table integer width (32 or 64) */
  
              if (AcpiGbl_IntegerByteWidth == 8)
              {
                  Op->Asl.AmlOpcode = AML_ONES_OP;
                  AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION,
                      Op, "Ones");
                  return 1;
              }
              break;
  
          default:
              break;
          }
      }
  
      /* Find the best fit using the various AML integer prefixes */
  
      if (Op->Asl.Value.Integer <= ACPI_UINT8_MAX)
      {
          Op->Asl.AmlOpcode = AML_BYTE_OP;
          return 1;
      }
      if (Op->Asl.Value.Integer <= ACPI_UINT16_MAX)
      {
          Op->Asl.AmlOpcode = AML_WORD_OP;
          return 2;
      }
      if (Op->Asl.Value.Integer <= ACPI_UINT32_MAX)
      {
          Op->Asl.AmlOpcode = AML_DWORD_OP;
          return 4;
      }
      else
      {
          if (AcpiGbl_IntegerByteWidth == 4)
          {
              AslError (ASL_WARNING, ASL_MSG_INTEGER_LENGTH,
                  Op, NULL);
  
              if (!Gbl_IgnoreErrors)
              {
                  /* Truncate the integer to 32-bit */
                  Op->Asl.AmlOpcode = AML_DWORD_OP;
                  return 4;
              }
          }
  
          Op->Asl.AmlOpcode = AML_QWORD_OP;
          return 8;
      }
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    OpcDoAccessAs
   *
   * PARAMETERS:  Op        - Parse node
   *
   * RETURN:      None
   *
   * DESCRIPTION: Implement the ACCESS_AS ASL keyword.
   *
   ******************************************************************************/
  
  static void
  OpcDoAccessAs (
      ACPI_PARSE_OBJECT       *Op)
  {
      ACPI_PARSE_OBJECT       *TypeOp;
      ACPI_PARSE_OBJECT       *AttribOp;
      ACPI_PARSE_OBJECT       *LengthOp;
      UINT8                   Attribute;
  
  
      Op->Asl.AmlOpcodeLength = 1;
      TypeOp = Op->Asl.Child;
  
      /* First child is the access type */
  
      TypeOp->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
      TypeOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
  
      /* Second child is the optional access attribute */
  
      AttribOp = TypeOp->Asl.Next;
      if (AttribOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
      {
          AttribOp->Asl.Value.Integer = 0;
      }
      AttribOp->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
      AttribOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
  
      /* Only a few AccessAttributes support AccessLength */
  
      Attribute = (UINT8) AttribOp->Asl.Value.Integer;
      if ((Attribute != AML_FIELD_ATTRIB_MULTIBYTE) &&
          (Attribute != AML_FIELD_ATTRIB_RAW_BYTES) &&
          (Attribute != AML_FIELD_ATTRIB_RAW_PROCESS))
      {
          return;
      }
  
      Op->Asl.AmlOpcode = AML_FIELD_EXT_ACCESS_OP;
  
      /*
       * Child of Attributes is the AccessLength (required for Multibyte,
       * RawBytes, RawProcess.)
       */
      LengthOp = AttribOp->Asl.Child;
      if (!LengthOp)
      {
          return;
      }
  
      /* TBD: probably can remove */
  
      if (LengthOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
      {
          LengthOp->Asl.Value.Integer = 16;
      }
  
      LengthOp->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
      LengthOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    OpcDoConnection
   *
   * PARAMETERS:  Op        - Parse node
   *
   * RETURN:      None
   *
   * DESCRIPTION: Implement the Connection ASL keyword.
   *
   ******************************************************************************/
  
  static void
  OpcDoConnection (
      ACPI_PARSE_OBJECT       *Op)
  {
      ASL_RESOURCE_NODE       *Rnode;
      ACPI_PARSE_OBJECT       *BufferOp;
      ACPI_PARSE_OBJECT       *BufferLengthOp;
      ACPI_PARSE_OBJECT       *BufferDataOp;
      UINT8                   State;
  
  
      Op->Asl.AmlOpcodeLength = 1;
  
      if (Op->Asl.Child->Asl.AmlOpcode == AML_INT_NAMEPATH_OP)
      {
          return;
      }
  
      BufferOp = Op->Asl.Child;
      BufferLengthOp = BufferOp->Asl.Child;
      BufferDataOp = BufferLengthOp->Asl.Next;
  
      State = ACPI_RSTATE_NORMAL;
      Rnode = RsDoOneResourceDescriptor (BufferDataOp->Asl.Next, 0, &State);
      if (!Rnode)
      {
          return; /* error */
      }
  
      /*
       * Transform the nodes into the following
       *
       * Op           -> AML_BUFFER_OP
       * First Child  -> BufferLength
       * Second Child -> Descriptor Buffer (raw byte data)
       */
      BufferOp->Asl.ParseOpcode         = PARSEOP_BUFFER;
      BufferOp->Asl.AmlOpcode           = AML_BUFFER_OP;
      BufferOp->Asl.CompileFlags        = NODE_AML_PACKAGE | NODE_IS_RESOURCE_DESC;
      UtSetParseOpName (BufferOp);
  
      BufferLengthOp->Asl.ParseOpcode   = PARSEOP_INTEGER;
      BufferLengthOp->Asl.Value.Integer = Rnode->BufferLength;
      (void) OpcSetOptimalIntegerSize (BufferLengthOp);
      UtSetParseOpName (BufferLengthOp);
  
      BufferDataOp->Asl.ParseOpcode         = PARSEOP_RAW_DATA;
      BufferDataOp->Asl.AmlOpcode           = AML_RAW_DATA_CHAIN;
      BufferDataOp->Asl.AmlOpcodeLength     = 0;
      BufferDataOp->Asl.AmlLength           = Rnode->BufferLength;
      BufferDataOp->Asl.Value.Buffer        = (UINT8 *) Rnode;
      UtSetParseOpName (BufferDataOp);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    OpcDoUnicode
   *
   * PARAMETERS:  Op        - Parse node
   *
   * RETURN:      None
   *
   * DESCRIPTION: Implement the UNICODE ASL "macro".  Convert the input string
   *              to a unicode buffer.  There is no Unicode AML opcode.
   *
   * Note:  The Unicode string is 16 bits per character, no leading signature,
   *        with a 16-bit terminating NULL.
   *
   ******************************************************************************/
  
  static void
  OpcDoUnicode (
      ACPI_PARSE_OBJECT       *Op)
  {
      ACPI_PARSE_OBJECT       *InitializerOp;
      UINT32                  Length;
      UINT32                  Count;
      UINT32                  i;
      UINT8                   *AsciiString;
      UINT16                  *UnicodeString;
      ACPI_PARSE_OBJECT       *BufferLengthOp;
  
  
      /* Change op into a buffer object */
  
      Op->Asl.CompileFlags &= ~NODE_COMPILE_TIME_CONST;
      Op->Asl.ParseOpcode = PARSEOP_BUFFER;
      UtSetParseOpName (Op);
  
      /* Buffer Length is first, followed by the string */
  
      BufferLengthOp = Op->Asl.Child;
      InitializerOp = BufferLengthOp->Asl.Next;
  
      AsciiString = (UINT8 *) InitializerOp->Asl.Value.String;
  
      /* Create a new buffer for the Unicode string */
  
      Count = strlen (InitializerOp->Asl.Value.String) + 1;
      Length = Count * sizeof (UINT16);
      UnicodeString = UtLocalCalloc (Length);
  
      /* Convert to Unicode string (including null terminator) */
  
      for (i = 0; i < Count; i++)
      {
          UnicodeString[i] = (UINT16) AsciiString[i];
      }
  
      /*
       * Just set the buffer size node to be the buffer length, regardless
       * of whether it was previously an integer or a default_arg placeholder
       */
      BufferLengthOp->Asl.ParseOpcode   = PARSEOP_INTEGER;
      BufferLengthOp->Asl.AmlOpcode     = AML_DWORD_OP;
      BufferLengthOp->Asl.Value.Integer = Length;
      UtSetParseOpName (BufferLengthOp);
  
      (void) OpcSetOptimalIntegerSize (BufferLengthOp);
  
      /* The Unicode string is a raw data buffer */
  
      InitializerOp->Asl.Value.Buffer   = (UINT8 *) UnicodeString;
      InitializerOp->Asl.AmlOpcode      = AML_RAW_DATA_BUFFER;
      InitializerOp->Asl.AmlLength      = Length;
      InitializerOp->Asl.ParseOpcode    = PARSEOP_RAW_DATA;
      InitializerOp->Asl.Child          = NULL;
      UtSetParseOpName (InitializerOp);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    OpcDoEisaId
   *
   * PARAMETERS:  Op        - Parse node
   *
   * RETURN:      None
   *
   * DESCRIPTION: Convert a string EISA ID to numeric representation.  See the
   *              Pnp BIOS Specification for details.  Here is an excerpt:
   *
   *              A seven character ASCII representation of the product
   *              identifier compressed into a 32-bit identifier.  The seven
   *              character ID consists of a three character manufacturer code,
   *              a three character hexadecimal product identifier, and a one
   *              character hexadecimal revision number.  The manufacturer code
   *              is a 3 uppercase character code that is compressed into 3 5-bit
   *              values as follows:
   *                  1) Find hex ASCII value for each letter
   *                  2) Subtract 40h from each ASCII value
   *                  3) Retain 5 least signficant bits for each letter by
   *                     discarding upper 3 bits because they are always 0.
   *                  4) Compressed code = concatenate 0 and the 3 5-bit values
   *
   *              The format of the compressed product identifier is as follows:
   *              Byte 0: Bit 7       - Reserved (0)
   *                      Bits 6-2:   - 1st character of compressed mfg code
   *                      Bits 1-0    - Upper 2 bits of 2nd character of mfg code
   *              Byte 1: Bits 7-5    - Lower 3 bits of 2nd character of mfg code
   *                      Bits 4-0    - 3rd character of mfg code
   *              Byte 2: Bits 7-4    - 1st hex digit of product number
   *                      Bits 3-0    - 2nd hex digit of product number
   *              Byte 3: Bits 7-4    - 3st hex digit of product number
   *                      Bits 3-0    - Hex digit of the revision number
   *
   ******************************************************************************/
  
  static void
  OpcDoEisaId (
      ACPI_PARSE_OBJECT       *Op)
  {
      UINT32                  EisaId = 0;
      UINT32                  BigEndianId;
      char                    *InString;
      ACPI_STATUS             Status = AE_OK;
      UINT32                  i;
  
  
      InString = (char *) Op->Asl.Value.String;
  
      /*
       * The EISAID string must be exactly 7 characters and of the form
       * "UUUXXXX" -- 3 uppercase letters and 4 hex digits (e.g., "PNP0001")
       */
      if (ACPI_STRLEN (InString) != 7)
      {
          Status = AE_BAD_PARAMETER;
      }
      else
      {
          /* Check all 7 characters for correct format */
  
          for (i = 0; i < 7; i++)
          {
              /* First 3 characters must be uppercase letters */
  
              if (i < 3)
              {
                  if (!isupper ((int) InString[i]))
                  {
                      Status = AE_BAD_PARAMETER;
                  }
              }
  
              /* Last 4 characters must be hex digits */
  
              else if (!isxdigit ((int) InString[i]))
              {
                  Status = AE_BAD_PARAMETER;
              }
          }
      }
  
      if (ACPI_FAILURE (Status))
      {
          AslError (ASL_ERROR, ASL_MSG_INVALID_EISAID, Op, Op->Asl.Value.String);
      }
      else
      {
          /* Create ID big-endian first (bits are contiguous) */
  
          BigEndianId =
              (UINT32) ((UINT8) (InString[0] - 0x40)) << 26 |
              (UINT32) ((UINT8) (InString[1] - 0x40)) << 21 |
              (UINT32) ((UINT8) (InString[2] - 0x40)) << 16 |
  
              (UtHexCharToValue (InString[3])) << 12 |
              (UtHexCharToValue (InString[4])) << 8  |
              (UtHexCharToValue (InString[5])) << 4  |
               UtHexCharToValue (InString[6]);
  
          /* Swap to little-endian to get final ID (see function header) */
  
          EisaId = AcpiUtDwordByteSwap (BigEndianId);
      }
  
      /*
       * Morph the Op into an integer, regardless of whether there
       * was an error in the EISAID string
       */
      Op->Asl.Value.Integer = EisaId;
  
      Op->Asl.CompileFlags &= ~NODE_COMPILE_TIME_CONST;
      Op->Asl.ParseOpcode = PARSEOP_INTEGER;
      (void) OpcSetOptimalIntegerSize (Op);
  
      /* Op is now an integer */
  
      UtSetParseOpName (Op);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    OpcDoUuId
   *
   * PARAMETERS:  Op        - Parse node
   *
   * RETURN:      None
   *
   * DESCRIPTION: Convert UUID string to 16-byte buffer
   *
   ******************************************************************************/
  
  static void
  OpcDoUuId (
      ACPI_PARSE_OBJECT       *Op)
  {
      char                    *InString;
      char                    *Buffer;
      ACPI_STATUS             Status = AE_OK;
      ACPI_PARSE_OBJECT       *NewOp;
  
  
      InString = (char *) Op->Asl.Value.String;
      Buffer = UtLocalCalloc (16);
  
      Status = AuValidateUuid (InString);
      if (ACPI_FAILURE (Status))
      {
          AslError (ASL_ERROR, ASL_MSG_INVALID_UUID, Op, Op->Asl.Value.String);
      }
      else
      {
          (void) AuConvertStringToUuid (InString, Buffer);
      }
  
      /* Change Op to a Buffer */
  
      Op->Asl.ParseOpcode = PARSEOP_BUFFER;
      Op->Common.AmlOpcode = AML_BUFFER_OP;
  
      /* Disable further optimization */
  
      Op->Asl.CompileFlags &= ~NODE_COMPILE_TIME_CONST;
      UtSetParseOpName (Op);
  
      /* Child node is the buffer length */
  
      NewOp = TrAllocateNode (PARSEOP_INTEGER);
  
      NewOp->Asl.AmlOpcode     = AML_BYTE_OP;
      NewOp->Asl.Value.Integer = 16;
      NewOp->Asl.Parent        = Op;
  
      Op->Asl.Child = NewOp;
      Op = NewOp;
  
      /* Peer to the child is the raw buffer data */
  
      NewOp = TrAllocateNode (PARSEOP_RAW_DATA);
      NewOp->Asl.AmlOpcode     = AML_RAW_DATA_BUFFER;
      NewOp->Asl.AmlLength     = 16;
      NewOp->Asl.Value.String  = (char *) Buffer;
      NewOp->Asl.Parent        = Op->Asl.Parent;
  
      Op->Asl.Next = NewOp;
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    OpcGenerateAmlOpcode
   *
   * PARAMETERS:  Op        - Parse node
   *
   * RETURN:      None
   *
   * DESCRIPTION: Generate the AML opcode associated with the node and its
   *              parse (lex/flex) keyword opcode.  Essentially implements
   *              a mapping between the parse opcodes and the actual AML opcodes.
   *
   ******************************************************************************/
  
  void
  OpcGenerateAmlOpcode (
      ACPI_PARSE_OBJECT       *Op)
  {
  
      UINT16                  Index;
  
  
      Index = (UINT16) (Op->Asl.ParseOpcode - ASL_PARSE_OPCODE_BASE);
  
      Op->Asl.AmlOpcode     = AslKeywordMapping[Index].AmlOpcode;
      Op->Asl.AcpiBtype     = AslKeywordMapping[Index].AcpiBtype;
      Op->Asl.CompileFlags |= AslKeywordMapping[Index].Flags;
  
      if (!Op->Asl.Value.Integer)
      {
          Op->Asl.Value.Integer = AslKeywordMapping[Index].Value;
      }
  
      /* Special handling for some opcodes */
  
      switch (Op->Asl.ParseOpcode)
      {
      case PARSEOP_INTEGER:
          /*
           * Set the opcode based on the size of the integer
           */
          (void) OpcSetOptimalIntegerSize (Op);
          break;
  
      case PARSEOP_OFFSET:
  
          Op->Asl.AmlOpcodeLength = 1;
          break;
  
      case PARSEOP_ACCESSAS:
  
          OpcDoAccessAs (Op);
          break;
  
      case PARSEOP_CONNECTION:
  
          OpcDoConnection (Op);
          break;
  
      case PARSEOP_EISAID:
  
          OpcDoEisaId (Op);
          break;
  
      case PARSEOP_TOUUID:
  
          OpcDoUuId (Op);
          break;
  
      case PARSEOP_UNICODE:
  
          OpcDoUnicode (Op);
          break;
  
      case PARSEOP_INCLUDE:
  
          Op->Asl.Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
          Gbl_HasIncludeFiles = TRUE;
          break;
  
      case PARSEOP_EXTERNAL:
  
          Op->Asl.Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
          Op->Asl.Child->Asl.Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
          break;
  
      default:
          /* Nothing to do for other opcodes */
          break;
      }
  
      return;
  }
  
  
  