src/ieee754/cordic/sin_cos_pipeline.py

   1 from nmutil.singlepipe import ControlBase
   2 from nmutil.concurrentunit import ReservationStations, num_bits
   3
   4 from ieee754.cordic.sin_cos_pipe_stages import (
   5     CordicStage, CordicInitialStage)
   6 from ieee754.cordic.pipe_data import (CordicPipeSpec, CordicData,
   7                                       CordicInitalData)
   8
   9 class CordicBasePipe(ControlBase):
  10     def __init__(self, pspec):
  11         ControlBase.__init__(self)
  12         self.init = CordicInitialStage(pspec)
  13         self.cordicstages = []
  14         for i in range(pspec.iterations):
  15             stage = CordicStage(pspec, i)
  16             self.cordicstages.append(stage)
  17         self._eqs = self.connect([self.init] + self.cordicstages)
  18
  19     def elaborate(self, platform):
  20         m = ControlBase.elaborate(self, platform)
  21         m.submodules.init = self.init
  22         for i, stage in enumerate(self.cordicstages):
  23             setattr(m.submodules, "stage%d" % i, stage)
  24         m.d.comb += self._eqs
  25         return m