update comments

[ieee754fpu.git] / src / add / example_buf_pipe.py

diff --git a/src/add/example_buf_pipe.py b/src/add/example_buf_pipe.py
index 12b4be42633cbcb684f3643626773249ca18c531..4bb7cdf1e87fe6f929c7b17342df71924e467af8 100644 (file)
--- a/src/add/example_buf_pipe.py
+++ b/src/add/example_buf_pipe.py
@@ -2,6 +2,7 @@
 """
 
 from nmoperator import eq
+from iocontrol import (PrevControl, NextControl)
 from singlepipe import (PrevControl, NextControl, ControlBase,
                         StageCls, Stage, StageChain,
                         BufferedHandshake, UnbufferedPipeline)