From 9993e43dba018c01a66f1a905df457fd8d894922 Mon Sep 17 00:00:00 2001
From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Fri, 21 Feb 2020 13:00:57 +0000
Subject: [PATCH] deal with zero-width ShiftMask

---
 src/ieee754/part_shift/part_shift_dynamic.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ieee754/part_shift/part_shift_dynamic.py b/src/ieee754/part_shift/part_shift_dynamic.py
index c051397b..daa1ec07 100644
--- a/src/ieee754/part_shift/part_shift_dynamic.py
+++ b/src/ieee754/part_shift/part_shift_dynamic.py
@@ -31,7 +31,7 @@ class ShifterMask(Elaboratable):
 
         # zero-width mustn't try to do anything
         if self.pwid == 0:
-            self.mask.eq((1<<min_bits)-1)
+            self.mask.eq((1<<self.min_bits)-1)
             return m
 
         bits = Signal(self.pwid, reset_less=True)
-- 
2.30.2