a

src/main/scala/daisyGrid.scala

@@ -3,6 +3,10 @@ import chisel3._
 import chisel3.core.Input
 import chisel3.iotesters.PeekPokeTester
 
+/**
+  DaisyGrids hold n daisyVecs. Unlike the daisyVecs, daisyGrids have a select signal for selecting
+  which daisyVec to work on, but these daisyVecs can not be controlled from the outside.
+  */
 class daisyGrid(rows: Int, cols: Int, dataWidth: Int) extends Module{
 
   val io = IO(new Bundle {
@@ -10,7 +14,6 @@ class daisyGrid(rows: Int, cols: Int, dataWidth: Int) extends Module{
     val readEnable = Input(Bool())
     val dataIn     = Input(UInt(dataWidth.W))
     val readRow    = Input(UInt(8.W))
-    // val reset      = Input(Bool())
 
     val dataOut    = Output(UInt(dataWidth.W))
   })

src/main/scala/daisyMatMul.scala

@@ -3,7 +3,9 @@ import chisel3._
 import chisel3.core.Input
 import chisel3.iotesters.PeekPokeTester
 
-// I use val for the args so I can reference them in the test
+/**
+  The daisy multiplier creates two daisy grids, one transposed, and multiplies them.
+  */
 class daisyMultiplier(val rowsA: Int, val colsA: Int, val rowsB: Int, val colsB: Int, val dataWidth: Int) extends Module {
 
   val io = IO(new Bundle {
@@ -37,7 +39,7 @@ class daisyMultiplier(val rowsA: Int, val colsA: Int, val rowsB: Int, val colsB:
   /// We transpose matrix B. This means that if both matrices read the same input
   /// stream then they will end up transposed.
   val matrixA = Module(new daisyGrid(rowsA, colsA, dataWidth)).io
-  val matrixB = Module(new daisyGrid(colsB, rowsB, dataWidth)).io
+  valAt least four users, including myself, are having an issue with update-initramfs hanging while updating ubuntu 16.04. The bug has been documented while attempting an update to multiple kernel versions ( 4.4.0-24, 4.4.0-62, 4.4.0-63). The bug causes any apt-get update or install to fail, and may also lead to an unbootable system. matrixB = Module(new daisyGrid(colsB, rowsB, dataWidth)).io
 
   matrixA.dataIn := io.dataInA
   matrixA.readEnable := io.readEnableA

src/main/scala/daisyVec.scala

@@ -3,6 +3,9 @@ import chisel3._
 import chisel3.core.Input
 import chisel3.iotesters.PeekPokeTester
 
+/**
+  DaisyVectors are not indexed. They have no control inputs or outputs, only data.
+  */
 class daisyVector(elements: Int, dataWidth: Int) extends Module{
 
   val io = IO(new Bundle {