digital_simulator/Port.py

   1 #!/usr/bin/python
   2 # vim: set fileencoding=utf8
   3 # Created:20080211
   4 # By Jeff Connelly
   5
   6 IN = "in"
   7 OUT = "out"
   8 INOUT = "inout"
   9
  10
  11 class Port(object):
  12     def __init__(self, name, direction, type, length = 0):
  13         self.name = name
  14         assert direction in [IN, OUT, INOUT], \
  15                 "Port direction %s is invalid" % (direction,)
  16
  17         self.direction = direction
  18         self.type = type
  19         self.value = []
  20         self.length = length
  21
  22     def __str__(self):
  23         return "<Port: %s, %s, %s, %s>" % (self.name, self.direction, self.type, self.length)
  24
  25 if __name__ == "__main__":
  26     a = Port("a", IN, None)
  27     b = Port("b", IN, None)
  28     c = Port("c", OUT, None)
  29
  30     print a
  31     print b
  32     print c