diff --git a/.gitignore b/.gitignore
index 7f7eb01..8e4ec4a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 
-.dir-locals.el
\ No newline at end of file
+.dir-locals.el
+__pycache__
diff --git a/register.py b/register.py
index 81e3164..a6da108 100644
--- a/register.py
+++ b/register.py
@@ -22,7 +22,9 @@ class Register:
         if value < 0:
             self.value = self.truncate_val(abs(value), self.n_bits - 1)
             self.negate()
-        self.truncate()
+        else:
+            self.value = value
+            self.truncate()
 
     def get(self):
         return self.value