src/soc/fu/mul/mul_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 CompMULOpSubset(CompOpSubsetBase):
   8     """CompMULOpSubset
   9
  10     a copy of the relevant subset information from Decode2Execute1Type
  11     needed for MUL 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((("imm", 64), ("imm_ok", 1)))),
  18                   ('rc', Layout((("rc", 1), ("rc_ok", 1)))), # Data
  19                   ('oe', Layout((("oe", 1), ("oe_ok", 1)))), # Data
  20                   ('invert_a', 1),
  21                   ('zero_a', 1),
  22                   ('invert_out', 1),
  23                   ('write_cr0', 1),
  24                   ('is_32bit', 1),
  25                   ('is_signed', 1),
  26                   ('insn', 32),
  27                   )
  28
  29         super().__init__(layout, name=name)
  30