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Diffstat (limited to 'tools/builtInChips/HalfAdder.hdl')
-rw-r--r-- | tools/builtInChips/HalfAdder.hdl | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tools/builtInChips/HalfAdder.hdl b/tools/builtInChips/HalfAdder.hdl new file mode 100644 index 0000000..1591b96 --- /dev/null +++ b/tools/builtInChips/HalfAdder.hdl @@ -0,0 +1,18 @@ +// This file is part of www.nand2tetris.org
+// and the book "The Elements of Computing Systems"
+// by Nisan and Schocken, MIT Press.
+// File name: tools/builtIn/HalfAdder.hdl
+
+/**
+ * Half adder. Computes sum, the least significnat bit of a + b,
+ * and carry, the most significnat bit of a + b.
+ */
+
+CHIP HalfAdder {
+
+ IN a, b;
+ OUT sum, // LSB of a + b
+ carry; // MSB of a + b
+
+ BUILTIN HalfAdder;
+}
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