text: """ $lic$
  Copyright (C) 2016-2019 by The Board of Trustees of Stanford University
  
  This program is free software: you can redistribute it and/or modify it under
  the terms of the Modified BSD-3 License as published by the Open Source
  Initiative.
  
  This program is distributed in the hope that it will be useful, but WITHOUT ANY
  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
  PARTICULAR PURPOSE. See the BSD-3 License for more details.
  
  You should have received a copy of the Modified BSD-3 License along with this
  program. If not, see <https://opensource.org/licenses/BSD-3-Clause>.
  """
  
  '''
  Enum for memory hierarchy.
  '''
  DRAM = 0
  GBUF = 1
  ITCN = 2
  REGF = 3
  NUM = 4
  
  