Use nmutil simulator module to simplify choosing among engines

diff --git a/src/soc/simple/test/test_issuer.py b/src/soc/simple/test/test_issuer.py
index 6426d05ba8deb419ce3e2977c9564b659aeeb60a..edcfb4f7be5111aba47757fb604aa0ef94594f37 100644 (file)
--- a/src/soc/simple/test/test_issuer.py
+++ b/src/soc/simple/test/test_issuer.py
@@ -5,10 +5,7 @@ related bugs:
  * https://bugs.libre-soc.org/show_bug.cgi?id=363
 """
 from nmigen import Module, Signal, Cat
-if True:
-    from nmigen.back.pysim import Simulator, Delay, Settle
-else:
-    from nmigen.sim.cxxsim import Simulator, Delay, Settle
+from nmutil.sim_tmp_alternative import Simulator, Delay, Settle
 from nmutil.formaltest import FHDLTestCase
 from nmigen.cli import rtlil
 import unittest