src/soc/fu/compunits/test/test_cr_compunit.py

   1 import unittest
   2 from soc.decoder.power_enums import (XER_bits, Function)
   3
   4 # XXX bad practice: use of global variables
   5 from soc.fu.cr.test.test_pipe_caller import get_cu_inputs
   6 from soc.fu.cr.test.test_pipe_caller import CRTestCase
   7
   8 from soc.fu.compunits.compunits import CRFunctionUnit
   9 from soc.fu.compunits.test.test_compunit import TestRunner
  10
  11
  12 class CRTestRunner(TestRunner):
  13     def __init__(self, test_data):
  14         super().__init__(test_data, CRFunctionUnit, self,
  15                          Function.CR)
  16
  17     def get_cu_inputs(self, dec2, sim):
  18         """naming (res) must conform to CRFunctionUnit input regspec
  19         """
  20         res = yield from get_cu_inputs(dec2, sim)
  21         return res
  22
  23     def check_cu_outputs(self, res, dec2, sim, code):
  24         """naming (res) must conform to CRFunctionUnit output regspec
  25         """
  26
  27         print ("check extra output", repr(code), res)
  28
  29         # full CR
  30         whole_reg = yield dec2.e.write_cr_whole
  31         cr_en = yield dec2.e.write_cr.ok
  32         if whole_reg:
  33             full_cr = res['full_cr']
  34             expected_cr = sim.cr.get_range().value
  35             print(f"expected cr {expected_cr:x}, actual: {full_cr:x}")
  36             self.assertEqual(expected_cr, full_cr, code)
  37
  38         # part-CR
  39         if cr_en:
  40             cr_sel = yield dec2.e.write_cr.data
  41             expected_cr = sim.crl[cr_sel].get_range().value
  42             real_cr = res['cr_a']
  43             self.assertEqual(expected_cr, real_cr, code)
  44
  45         # RT
  46         out_reg_valid = yield dec2.e.write_reg.ok
  47         if out_reg_valid:
  48             alu_out = res['o']
  49             write_reg_idx = yield dec2.e.write_reg.data
  50             expected = sim.gpr(write_reg_idx).value
  51             print(f"expected {expected:x}, actual: {alu_out:x}")
  52             self.assertEqual(expected, alu_out, code)
  53
  54
  55 if __name__ == "__main__":
  56     unittest.main(exit=False)
  57     suite = unittest.TestSuite()
  58     suite.addTest(CRTestRunner(CRTestCase.test_data))
  59
  60     runner = unittest.TextTestRunner()
  61     runner.run(suite)