def __init__(self, i, o, odomain="sys", n=2, reset=0):
     Special.__init__(self)
     self.i = wrap(i)
     self.o = wrap(o)
     self.odomain = odomain
     self.n = n
     self.reset = reset

	def __init__(self, i, idomain, o, odomain, n=2):
		Special.__init__(self)
		self.i = i
		self.idomain = idomain
		self.o = o
		self.odomain = odomain
		self.n = n

 def __init__(self, i1, i2, o, clk=ClockSignal()):
     Special.__init__(self)
     self.i1 = i1
     self.i2 = i2
     self.o = o
     self.clk = clk

	def __init__(self, reg):
		Special.__init__(self)
		self.reg = reg

	def list_clock_domains(self):
		r = Special.list_clock_domains(self)
		r.add(self.odomain)
		return r

	def rename_clock_domain(self, old, new):
		Special.rename_clock_domain(self, old, new)
		if self.odomain == old:
			self.odomain = new

 def __init__(self, i, o1, o2, clk=ClockSignal()):
     Special.__init__(self)
     self.i = wrap(i)
     self.o1 = wrap(o1)
     self.o2 = wrap(o2)
     self.clk = wrap(clk)

	def __init__(self, cd, async_reset):
		Special.__init__(self)
		self.cd = cd
		self.async_reset = async_reset