From 4e6abd161fddf6bb896a9e39e8826613709a6dc3 Mon Sep 17 00:00:00 2001
From: Raphael Roberts <raphael.roberts48@gmail.com>
Date: Wed, 6 Nov 2019 23:21:13 -0600
Subject: [PATCH] Fixed negate

---
 register.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/register.py b/register.py
index 67deaa5..c75a863 100644
--- a/register.py
+++ b/register.py
@@ -27,8 +27,12 @@ class Register:
     def get(self):
         return self.value
 
+    def complement(self):
+        self.value = self.value ^ ((1 << self.n_bits) - 1)
+
     def negate(self):
-        self.value = ~self.value + 1
+        self.complement()
+        self.value += 1
 
 
 class Acumulator(Register):