src/ieee754/fpcommon/normtopack.py

   1 # IEEE Floating Point Adder (Single Precision)
   2 # Copyright (C) Jonathan P Dawson 2013
   3 # 2013-12-12
   4
   5 #from nmigen.cli import main, verilog
   6
   7 from nmutil.singlepipe import StageChain
   8
   9 from ieee754.fpcommon.modbase import FPModBaseChain
  10 from ieee754.fpcommon.postcalc import FPAddStage1Data
  11 from ieee754.fpcommon.postnormalise import FPNorm1ModSingle
  12 from ieee754.fpcommon.roundz import FPRoundMod
  13 from ieee754.fpcommon.corrections import FPCorrectionsMod
  14 from ieee754.fpcommon.pack import FPPackData, FPPackMod
  15
  16
  17 class FPNormToPack(FPModBaseChain):
  18
  19     def __init__(self, pspec, e_extra=False):
  20         self.e_extra = e_extra
  21         super().__init__(pspec)
  22
  23     def get_chain(self):
  24         """ gets chain of modules
  25         """
  26         # Normalisation, Rounding Corrections, Pack - in a chain
  27         nmod = FPNorm1ModSingle(self.pspec, e_extra=self.e_extra)
  28         rmod = FPRoundMod(self.pspec)
  29         cmod = FPCorrectionsMod(self.pspec)
  30         pmod = FPPackMod(self.pspec)
  31
  32         return [nmod, rmod, cmod, pmod]