src/soc/fu/base_input_record.py

   1 from nmigen.hdl.rec import Record, Layout
   2 from nmigen import Signal
   3
   4
   5 class CompOpSubsetBase(Record):
   6     """CompOpSubsetBase
   7
   8     base class of subset Operation information
   9     """
  10     def __init__(self, layout, name):
  11
  12         Record.__init__(self, Layout(layout), name=name)
  13
  14         # grrr.  Record does not have kwargs
  15         for fname, sig in self.fields.items():
  16             sig.reset_less = True
  17
  18     def eq_from_execute1(self, other):
  19         """ use this to copy in from Decode2Execute1Type
  20         """
  21         res = []
  22         for fname, sig in self.fields.items():
  23             eqfrom = other.do.fields[fname]
  24             res.append(sig.eq(eqfrom))
  25         return res
  26
  27     def ports(self):
  28         res = []
  29         for fname, sig in self.fields.items():
  30             if isinstance(sig, Signal):
  31                 res.append(sig)
  32         return res