From 6021754aa0e3bf44c689657d8d3eff4beeb941fd Mon Sep 17 00:00:00 2001
From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Mon, 11 May 2020 11:47:26 +0100
Subject: [PATCH] add docstring, missing return module

---
 src/soc/alu/rotator.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/soc/alu/rotator.py b/src/soc/alu/rotator.py
index a763021a..05b6b19b 100644
--- a/src/soc/alu/rotator.py
+++ b/src/soc/alu/rotator.py
@@ -1,3 +1,6 @@
+# Manual translation and adaptation of rotator.vhdl from microwatt into nmigen
+#
+
 from soc.alu.rotl import ROTL
 
 #note BE bit numbering
@@ -130,3 +133,4 @@ class Rotator(Elaboratable):
         with m.If(output_mode = 0b11):
             comb += carry_out.eq(rs & ~ml)
 
+        return m
-- 
2.30.2