src/soc/fu/cr/pipe_data.py

   1 from nmigen import Signal, Const
   2 from ieee754.fpcommon.getop import FPPipeContext
   3 from soc.fu.alu.pipe_data import IntegerData
   4
   5
   6 class CRInputData(IntegerData):
   7     def __init__(self, pspec):
   8         super().__init__(pspec)
   9         self.a = Signal(64, reset_less=True) # RA
  10         self.cr = Signal(64, reset_less=True) # CR in
  11
  12     def __iter__(self):
  13         yield from super().__iter__()
  14         yield self.a
  15         yield self.cr
  16
  17     def eq(self, i):
  18         lst = super().eq(i)
  19         return lst + [self.a.eq(i.a),
  20                       self.cr.eq(i.cr)]
  21
  22 class CROutputData(IntegerData):
  23     def __init__(self, pspec):
  24         super().__init__(pspec)
  25         self.o = Signal(64, reset_less=True) # RA
  26         self.cr = Signal(64, reset_less=True) # CR in
  27
  28     def __iter__(self):
  29         yield from super().__iter__()
  30         yield self.o
  31         yield self.cr
  32
  33     def eq(self, i):
  34         lst = super().eq(i)
  35         return lst + [self.o.eq(i.o),
  36                       self.cr.eq(i.cr)]