From e64c18d0e30c33fe4609c881620fa937da7b8ce3 Mon Sep 17 00:00:00 2001
From: Michael Abed <michaelabed@gmail.com>
Date: Sun, 2 Dec 2012 12:13:10 -0500
Subject: make git repo

---
 verilog/full_adder.v | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100755 verilog/full_adder.v

(limited to 'verilog/full_adder.v')

diff --git a/verilog/full_adder.v b/verilog/full_adder.v
new file mode 100755
index 0000000..c669c6a
--- /dev/null
+++ b/verilog/full_adder.v
@@ -0,0 +1,61 @@
+`timescale 1ns / 1ps
+//////////////////////////////////////////////////////////////////////////////////
+// Company: 
+// Engineer: 
+// 
+// Create Date:    12:24:15 10/04/2012 
+// Design Name: 
+// Module Name:    fa 
+// Project Name: 
+// Target Devices: 
+// Tool versions: 
+// Description: 
+//
+// Dependencies: 
+//
+// Revision: 
+// Revision 0.01 - File Created
+// Additional Comments: 
+//
+//////////////////////////////////////////////////////////////////////////////////
+module fa(
+    output sum,
+    output cout,
+    input a,
+    input b,
+    input cin
+    );
+
+
+wire s1, s2, s3, s4; // sum wires
+wire c1, c2, c3; // carry wires
+wire ia, ib, ic; // inverted wires
+
+// invert wires ad needed for the sum
+not n1(ia, a);
+not n2(ib, b);
+not n3(ic, cin);
+
+// SUM CALCULATION
+
+// compute relevant minterms
+and a1(s1, ia, ib, cin);
+and a2(s2, ia, b, ic);
+and a3(s3, a, ib, ic);
+and a4(s4, a, b, cin);
+
+// or minterm results
+or o1(sum, s1, s2, s3, s4);
+
+// CARRY CALCULATION
+
+// compute minterms
+and ca1(c1, a, b);
+and ca2(c2, a, cin);
+and ca3(c3, b, cin);
+
+// or results
+or o2(cout, c1, c2, c3); 
+
+
+endmodule
-- 
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