remove unneeded imports

diff --git a/src/add/fpcommon/roundz.py b/src/add/fpcommon/roundz.py
index 85272011c389594b8e9781ec857ebd6630c4f731..24c49b87d9c67059bd634932cf61306310a0eab4 100644 (file)
--- a/src/add/fpcommon/roundz.py
+++ b/src/add/fpcommon/roundz.py
@@ -2,19 +2,11 @@
 # Copyright (C) Jonathan P Dawson 2013
 # 2013-12-12
 
-from nmigen import Module, Signal, Cat, Mux, Array, Const
-from nmigen.lib.coding import PriorityEncoder
+from nmigen import Module, Signal
 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 FPState, FPID
+from fpbase import FPNumBase
+from fpbase import FPState
 from fpcommon.postnormalise import FPNorm1Data