Adapted example FullAdder

src/main/scala/examples/FullAdder.scala

 // See LICENSE.txt for license details.
-package examples
+// January 20th, 2018	-adapted to Learning Journey
 
-import chisel3._
+package examples
 
-class FullAdder extends Module {
-  val io = IO(new Bundle {
-    val a    = Input(UInt(1.W))
-    val b    = Input(UInt(1.W))
-    val cin  = Input(UInt(1.W))
-    val sum  = Output(UInt(1.W))
-    val cout = Output(UInt(1.W))
-  })
+import Chisel._
 
-  // Generate the sum
-  val a_xor_b = io.a ^ io.b
-  io.sum := a_xor_b ^ io.cin
-  // Generate the carry
-  val a_and_b = io.a & io.b
-  val b_and_cin = io.b & io.cin
-  val a_and_cin = io.a & io.cin
-  io.cout := a_and_b | b_and_cin | a_and_cin
+class FullAdder extends Module { 
+  val io = new Bundle { 
+    val a    = UInt(INPUT, 1) 
+    val b    = UInt(INPUT, 1) 
+    val cin  = UInt(INPUT, 1) 
+    val sum  = UInt(OUTPUT, 1) 
+    val cout = UInt(OUTPUT, 1) 
+  } 
+  // Generate the sum 
+  val a_xor_b = io.a ^ io.b 
+  io.sum := a_xor_b ^ io.cin 
+  // Generate the carry 
+  val a_and_b = io.a & io.b 
+  val b_and_cin = io.b & io.cin 
+  val a_and_cin = io.a & io.cin 
+  io.cout := a_and_b | b_and_cin | a_and_cin 
 }