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Diffstat (limited to 'projects/01/Xor.hdl')
-rw-r--r-- | projects/01/Xor.hdl | 21 |
1 files changed, 21 insertions, 0 deletions
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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