# test case for LOAD / STORE Computation Unit using MMU
-#from nmigen.compat.sim import run_simulation
-from nmigen.compat.sim import Simulator, Delay, Settle
+from nmigen.back.pysim import Simulator, Delay, Settle, Tick
from nmigen.cli import verilog, rtlil
from nmigen import Module, Signal, Mux, Cat, Elaboratable, Array, Repl
from nmigen.hdl.rec import Record, Layout