remove unneeded imports

diff --git a/src/add/fpcommon/prenormalise.py b/src/add/fpcommon/prenormalise.py
index b09591f541750b504edbb40bcb9e18ec7945f9b5..0b3a65cbaef9d833d404ac33c87c3b1b6480152c 100644 (file)
--- a/src/add/fpcommon/prenormalise.py
+++ b/src/add/fpcommon/prenormalise.py
@@ -2,21 +2,15 @@
 # Copyright (C) Jonathan P Dawson 2013
 # 2013-12-12
 
-from nmigen import Module, Signal, Cat, Mux, Array, Const
+from nmigen import Module, Signal, Cat,
 from nmigen.lib.coding import PriorityEncoder
 from nmigen.cli import main, verilog
 from math import log
 
-from fpbase import FPNumIn, FPNumOut, FPOp, Overflow, FPBase, FPNumBase
-from fpbase import MultiShiftRMerge, Trigger
-from singlepipe import (ControlBase, StageChain, UnbufferedPipeline,
-                        PassThroughStage)
-from multipipe import CombMuxOutPipe
-from multipipe import PriorityCombMuxInPipe
+from fpbase import Overflow, FPNumBase
+from fpbase import MultiShiftRMerge
 
 from fpbase import FPState
-from fpcommon.getop import (FPGetOpMod, FPGetOp, FPNumBase2Ops, FPADDBaseData,                              FPGet2OpMod, FPGet2Op)
-from fpcommon.denorm import (FPSCData, FPAddDeNormMod, FPAddDeNorm)
 
 
 class FPNormaliseModSingle: