src/soc/fu/trap/trap_input_record.py

   1 from soc.fu.base_input_record import CompOpSubsetBase
   2 from openpower.decoder.power_enums import (MicrOp, Function)
   3 from openpower.consts import TT
   4 from soc.experiment.mem_types import LDSTException
   5
   6 class CompTrapOpSubset(CompOpSubsetBase):
   7     """CompTrapOpSubset
   8
   9     a copy of the relevant subset information from Decode2Execute1Type
  10     needed for TRAP operations.  use with eq_from_execute1 (below) to
  11     grab subsets.
  12     """
  13     def __init__(self, name=None):
  14         layout = [('insn_type', MicrOp),
  15                   ('fn_unit', Function),
  16                   ('insn', 32),
  17                   ('msr', 64),     # from core.state
  18                   ('cia', 64),     # likewise
  19                   ('svstate', 64), # likewise
  20                   ('is_32bit', 1),
  21                   ('traptype', TT.size), # see trap main_stage.py, PowerDecoder2
  22                   ('trapaddr', 13),
  23                   ('ldst_exc', len(LDSTException._exc_types)),
  24                   ]
  25
  26         super().__init__(layout, name=name)
  27