From 9542deeb483a00b6fabed7574720926ce97d7511 Mon Sep 17 00:00:00 2001
From: Frederick Yin <fkfd@fkfd.me>
Date: Tue, 16 Aug 2022 11:54:23 +0800
Subject: Projects, 01-06 completed

---
 projects/01/Xor.hdl | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 projects/01/Xor.hdl

(limited to 'projects/01/Xor.hdl')

diff --git a/projects/01/Xor.hdl b/projects/01/Xor.hdl
new file mode 100644
index 0000000..e13b4fb
--- /dev/null
+++ b/projects/01/Xor.hdl
@@ -0,0 +1,21 @@
+// This file is part of www.nand2tetris.org
+// and the book "The Elements of Computing Systems"
+// by Nisan and Schocken, MIT Press.
+// File name: projects/01/Xor.hdl
+
+/**
+ * Exclusive-or gate:
+ * out = not (a == b)
+ */
+
+CHIP Xor {
+    IN a, b;
+    OUT out;
+
+    PARTS:
+    Not(in=a, out=na);
+    Not(in=b, out=nb);
+    Nand(a=a, b=nb, out=c);
+    Nand(a=na, b=b, out=d);
+    Nand(a=c, b=d, out=out);
+}
-- 
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