xref: /gem5/util/systemc/systemc_within_gem5/systemc_simple_object/SystemC_Example.py

# Copyright 2018 Google, Inc.
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# Authors: Gabe Black

from m5.params import *
from m5.SimObject import SimObject

from SystemC import SystemC_ScModule

# This class is a subclass of sc_module, and all the special magic which makes
# that work is handled in the base classes.
class SystemC_Printer(SystemC_ScModule):
    type = 'SystemC_Printer'
    cxx_class = 'Printer'
    cxx_header = 'systemc_simple_object/printer.hh'
    # This parameter will be available in the SystemC_PrinterParams::create
    # function and can be passed to the c++ object's constructor, used to set
    # one of its member variables, as a parameter to one of its methods, etc.
    prefix = Param.String('', 'Prefix for each word')

# This is a standard gem5 SimObject class with no special accomodation for the
# fact that one of its parameters is a systemc object.
class Gem5_Feeder(SimObject):
    type = 'Gem5_Feeder'
    cxx_class = 'Feeder'
    cxx_header = 'systemc_simple_object/feeder.hh'
    # This parameter will be a pointer to an instance of the class above.
    printer = Param.SystemC_Printer('Printer for our words.')
    delay = Param.Latency('1ns', 'Time to wait between each word.')
    strings = VectorParam.String([], 'Words to print.')