text: #!/usr/bin/env python2.7
  """
  Run a regresion test on a 4 bank SRAM
  """
  
  import unittest
  from testutils import header,openram_test
  import sys,os
  sys.path.append(os.path.join(sys.path[0],".."))
  import globals
  from globals import OPTS
  import debug
  
  class sram_4bank_test(openram_test):
  
      def runTest(self):
          globals.init_openram("config_20_{0}".format(OPTS.tech_name))
          global verify
          import verify
          OPTS.check_lvsdrc = False
  
          import sram
  
          debug.info(1, "Four bank, no column mux with control logic")
          a = sram.sram(word_size=16, num_words=64, num_banks=4, name="sram1")
          self.local_check(a, final_verification=True)
  
          debug.info(1, "Four bank two way column mux with control logic")
          a = sram.sram(word_size=16, num_words=128, num_banks=4, name="sram2")
          self.local_check(a, final_verification=True)
  
          debug.info(1, "Four bank, four way column mux with control logic")
          a = sram.sram(word_size=16, num_words=256, num_banks=4, name="sram3")
          self.local_check(a, final_verification=True)
  
          # debug.info(1, "Four bank, eight way column mux with control logic")
          # a = sram.sram(word_size=2, num_words=256, num_banks=4, name="sram4")
          # self.local_check(a, final_verification=True)
  
          OPTS.check_lvsdrc = True
          globals.end_openram()
          
  # instantiate a copy of the class to actually run the test
  if __name__ == "__main__":
      (OPTS, args) = globals.parse_args()
      del sys.argv[1:]
      header(__file__, OPTS.tech_name)
      unittest.main()
  