configs/learning_gem5/part2/hello_goodbye.py

   1 # -*- coding: utf-8 -*-
   2 # Copyright (c) 2017 Jason Lowe-Power
   3 # All rights reserved.
   4 #
   5 # Redistribution and use in source and binary forms, with or without
   6 # modification, are permitted provided that the following conditions are
   7 # met: redistributions of source code must retain the above copyright
   8 # notice, this list of conditions and the following disclaimer;
   9 # redistributions in binary form must reproduce the above copyright
  10 # notice, this list of conditions and the following disclaimer in the
  11 # documentation and/or other materials provided with the distribution;
  12 # neither the name of the copyright holders nor the names of its
  13 # contributors may be used to endorse or promote products derived from
  14 # this software without specific prior written permission.
  15 #
  16 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27 #
  28 # Authors: Jason Lowe-Power
  29
  30 """
  31 A simple run file that creates two SimObjects: HelloObject and GoodbyeObject
  32 and then runs the simulation. Using the debug "Hello" is informative.
  33
  34 IMPORTANT: If you modify this file, it's likely that the Learning gem5 book
  35            also needs to be updated. For now, email Jason <power.jg@gmail.com>
  36
  37 """
  38
  39 from __future__ import print_function
  40 from __future__ import absolute_import
  41
  42 # import the m5 (gem5) library created when gem5 is built
  43 import m5
  44 # import all of the SimObjects
  45 from m5.objects import *
  46
  47 # set up the root SimObject and start the simulation
  48 root = Root(full_system = False)
  49
  50 # Create an instantiation of the simobject you created
  51 root.hello = HelloObject(time_to_wait = '2us', number_of_fires = 5)
  52 root.hello.goodbye_object = GoodbyeObject(buffer_size='100B')
  53
  54 # instantiate all of the objects we've created above
  55 m5.instantiate()
  56
  57 print("Beginning simulation!")
  58 exit_event = m5.simulate()
  59 print('Exiting @ tick %i because %s' % (m5.curTick(), exit_event.getCause()))