rearranged the dir for github

- removed tools and pdfs
- rearranged the projects dirs
- added md files
- other minor changes

1 files changed, 19 insertions, 0 deletions

diff --git a/chips/HalfAdder.hdl b/chips/HalfAdder.hdl
new file mode 100644
index 0000000..0b40509
--- /dev/null
+++ b/chips/HalfAdder.hdl
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+// 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/02/HalfAdder.hdl

+

+/**

+ * Computes the sum of two bits.

+ */

+

+CHIP HalfAdder {

+    IN a, b;    // 1-bit inputs

+    OUT sum,    // Right bit of a + b 

+        carry;  // Left bit of a + b

+

+    PARTS:

+    // Put you code here:

+    Xor (a=a, b=b, out=sum);

+    And (a=a, b=b, out=carry);

+}