fhdl/structure: add unary minus

diff --git a/migen/fhdl/structure.py b/migen/fhdl/structure.py
index 869ed1287bb0d902dc5669711add802fa3d55e26..250c57ae42db1a146bcc60bb15f284bd8ce4875d 100644 (file)
--- a/migen/fhdl/structure.py
+++ b/migen/fhdl/structure.py
@@ -37,6 +37,8 @@ class HUID:
 class Value(HUID):
        def __invert__(self):
                return _Operator("~", [self])
+       def __neg__(self):
+               return _Operator("-", [self])
 
        def __add__(self, other):
                return _Operator("+", [self, other])