src/soc/fu/shift_rot/sr_input_record.py

   1 from soc.fu.base_input_record import CompOpSubsetBase
   2 from nmigen.hdl.rec import Layout
   3
   4 from soc.decoder.power_enums import MicrOp, Function, CryIn
   5
   6
   7 class CompSROpSubset(CompOpSubsetBase):
   8     """CompSROpSubset
   9
  10     a copy of the relevant subset information from Decode2Execute1Type
  11     needed for ALU operations.  use with eq_from_execute1 (below) to
  12     grab subsets.
  13     """
  14     def __init__(self, name=None):
  15         layout = (('insn_type', MicrOp),
  16                   ('fn_unit', Function),
  17                   ('imm_data', Layout((("data", 64), ("ok", 1)))),
  18                   ('rc', Layout((("rc", 1), ("ok", 1)))),
  19                   ('oe', Layout((("oe", 1), ("ok", 1)))),
  20                   ('write_cr0', 1),
  21                   ('input_carry', CryIn),
  22                   ('output_carry', 1),
  23                   ('input_cr', 1),
  24                   ('output_cr', 1),
  25                   ('is_32bit', 1),
  26                   ('is_signed', 1),
  27                   ('insn', 32),
  28                   )
  29
  30         super().__init__(layout, name=name)
  31