Adapting HiLoMultiplier

src/main/scala/examples/HiLoMultiplier.scala

 // See LICENSE.txt for license details.
+// January 22nd, 2018	- adapted to Learning Journey
+
 package examples
 
-import chisel3._
+import Chisel._
 
 //A 4-bit adder with carry in and carry out
 class HiLoMultiplier() extends Module { 
-  val io = IO(new Bundle {
-    val A  = Input(UInt(16.W))
-    val B  = Input(UInt(16.W))
-    val Hi = Output(UInt(16.W))
-    val Lo = Output(UInt(16.W))
-  })
+  val io = new Bundle { 
+    val A  = UInt(INPUT, 16) 
+    val B  = UInt(INPUT, 16) 
+    val Hi = UInt(OUTPUT, 16) 
+    val Lo = UInt(OUTPUT, 16) 
+  } 
   val mult = io.A * io.B 
   io.Lo := mult(15, 0) 
   io.Hi := mult(31, 16)