text: # ------------------------------------------------------------------------------
  # CodeHawk Binary Analyzer
  # Author: Henny Sipma
  # ------------------------------------------------------------------------------
  # The MIT License (MIT)
  #
  # Copyright (c) 2021 Aarno Labs LLC
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in all
  # copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  # SOFTWARE.
  # ------------------------------------------------------------------------------
  
  from typing import List, TYPE_CHECKING
  
  from chb.app.AbstractSyntaxTree import AbstractSyntaxTree
  from chb.app.ASTNode import ASTInstruction
  
  from chb.app.InstrXData import InstrXData
  
  from chb.arm.ARMDictionaryRecord import armregistry
  from chb.arm.ARMOpcode import ARMOpcode, simplify_result
  from chb.arm.ARMOperand import ARMOperand
  
  import chb.util.fileutil as UF
  
  from chb.util.IndexedTable import IndexedTableValue
  
  if TYPE_CHECKING:
      import chb.arm.ARMDictionary
  
  
  @armregistry.register_tag("NOP", ARMOpcode)
  class ARMNoOperation(ARMOpcode):
      """No operation; does nothing.
  
      NOP<c>
  
      tags[1]: <c>
      """
  
      def __init__(
              self,
              d: "chb.arm.ARMDictionary.ARMDictionary",
              ixval: IndexedTableValue) -> None:
          ARMOpcode.__init__(self, d, ixval)
          self.check_key(2, 0, "NoOperation")
  
      @property
      def operands(self) -> List[ARMOperand]:
          return []
  
      def annotation(self, xdata: InstrXData) -> str:
          return "--"
  
      def assembly_ast(
              self,
              astree: AbstractSyntaxTree,
              iaddr: str,
              bytestring: str,
              xdata: InstrXData) -> List[ASTInstruction]:
          return []
  