src/ieee754/add/fpcommon/postcalc.py

   1 # IEEE Floating Point Adder (Single Precision)
   2 # Copyright (C) Jonathan P Dawson 2013
   3 # 2013-12-12
   4
   5 from nmigen import Signal
   6 from fpbase import Overflow, FPNumBase
   7
   8 class FPAddStage1Data:
   9
  10     def __init__(self, width, id_wid):
  11         self.z = FPNumBase(width, False)
  12         self.out_do_z = Signal(reset_less=True)
  13         self.oz = Signal(width, reset_less=True)
  14         self.of = Overflow()
  15         self.mid = Signal(id_wid, reset_less=True)
  16
  17     def __iter__(self):
  18         yield from self.z
  19         yield self.out_do_z
  20         yield self.oz
  21         yield from self.of
  22         yield self.mid
  23
  24     def eq(self, i):
  25         return [self.z.eq(i.z), self.out_do_z.eq(i.out_do_z), self.oz.eq(i.oz),
  26                 self.of.eq(i.of), self.mid.eq(i.mid)]