-from openpower.decoder.isa.caller import ISACaller
-from openpower.decoder.power_decoder import (create_pdecode)
-from openpower.decoder.power_decoder2 import (PowerDecode2)
-from openpower.simulator.program import Program
-from openpower.decoder.isa.caller import ISACaller, SVP64State, CRFields
+from copy import deepcopy
+
+from nmutil.formaltest import FHDLTestCase
+from openpower.decoder.isa.caller import SVP64State
+from openpower.decoder.isa.test_caller import run_tst