src/soc/fu/ldst/test/test_pipe_caller.py

   1 from openpower.decoder.power_enums import XER_bits
   2 from openpower.test.ldst.ldst_cases import LDSTTestCase
   3
   4 def get_cu_inputs(dec2, sim):
   5     """naming (res) must conform to LDSTFunctionUnit input regspec
   6     """
   7     res = {}
   8
   9     # RA
  10     reg1_ok = yield dec2.e.read_reg1.ok
  11     if reg1_ok:
  12         data1 = yield dec2.e.read_reg1.data
  13         res['ra'] = sim.gpr(data1).value
  14
  15     # RB (or immediate)
  16     reg2_ok = yield dec2.e.read_reg2.ok
  17     if reg2_ok:
  18         data2 = yield dec2.e.read_reg2.data
  19         res['rb'] = sim.gpr(data2).value
  20
  21     # RC
  22     reg3_ok = yield dec2.e.read_reg3.ok
  23     if reg3_ok:
  24         data3 = yield dec2.e.read_reg3.data
  25         res['rc'] = sim.gpr(data3).value
  26
  27     # XER.so
  28     oe = yield dec2.e.do.oe.data[0] & dec2.e.do.oe.ok
  29     if oe:
  30         so = 1 if sim.spr['XER'][XER_bits['SO']] else 0
  31         res['xer_so'] = so
  32
  33     return res
  34
  35