diff --git a/register.py b/register.py
new file mode 100644
index 0000000..ad2c71d
--- /dev/null
+++ b/register.py
@@ -0,0 +1,32 @@
+class Register:
+    def __init__(self, n_bits, name):
+        self.n_bits = n_bits
+        self.name = name
+        self.value = 0
+
+    def truncate(self, value, bits=None):
+        if bits is None:
+            bits = self.n_bits
+        return value & (1 << bits - 1)
+
+    def set(self, value):
+        if value < 0:
+            self.value = self.truncate(abs(value), self.n_bits - 1)
+            self.negate()
+        self.value = self.truncate(value)
+
+    def get(self):
+        return self.value
+
+    def negate(self):
+        self.value = ~self.value + 1
+
+
+class Acumulator(Register):
+    positive_flag = False
+    negative_flag = False
+    zero_flag = False
+    carry = False
+
+    def add(self, register):
+        pass