diff --git a/src/notGate.cpp b/src/notGate.cpp
index b323b15..7215e46 100644
--- a/src/notGate.cpp
+++ b/src/notGate.cpp
@@ -1,3 +1,14 @@
 #include "notGate.h"
 
 using namespace std;
+
+notGate::notGate(int gateDelay, wire* wire1 = nullptr, wire* wire2 = nullptr)
+	: delay(gateDelay), in1(wire1), out(wire2) {}
+
+notGate::evaluate() {
+	int val = in1->getValue();
+
+	if(val != -1) {
+		return !val;
+	}
+}