Revamp VendingMachine.scala as cookbook example

* Move to cookbook
* Change FSM implementation to use switch & is
* Add non-FSM implementation
* Add execution-driven test

1 files changed, 0 insertions, 69 deletions

diff --git a/src/test/scala/chiselTests/VendingMachine.scala b/src/test/scala/chiselTests/VendingMachine.scala
deleted file mode 100644
index 712b5b7a..00000000
--- a/src/test/scala/chiselTests/VendingMachine.scala
+++ /dev/null
@@ -1,69 +0,0 @@
-// See LICENSE for license details.
-
-package chiselTests
-
-import chisel3._
-import chisel3.util._
-
-class VendingMachine extends Module {
-  val io = IO(new Bundle {
-    val nickel = Input(Bool())
-    val dime   = Input(Bool())
-    val valid  = Output(Bool())
-  })
-  val c = 5.U(3.W)
-  val sIdle :: s5 :: s10 :: s15 :: sOk :: Nil = Enum(5)
-  val state = Reg(init = sIdle)
-  when (state === sIdle) {
-    when (io.nickel) { state := s5 }
-    when (io.dime)   { state := s10 }
-  }
-  when (state === s5) {
-    when (io.nickel) { state := s10 }
-    when (io.dime)   { state := s15 }
-  }
-  when (state === s10) {
-    when (io.nickel) { state := s15 }
-    when (io.dime)   { state := sOk }
-  }
-  when (state === s15) {
-    when (io.nickel) { state := sOk }
-    when (io.dime)   { state := sOk }
-  }
-  when (state === sOk) {
-    state := sIdle
-  }
-  io.valid := (state === sOk)
-}
-
-/*
-class VendingMachineTester(c: VendingMachine) extends Tester(c) {
-  var money = 0
-  var isValid = false
-  for (t <- 0 until 20) {
-    val coin     = rnd.nextInt(3)*5
-    val isNickel = coin == 5
-    val isDime   = coin == 10
-
-    // Advance circuit
-    poke(c.io.nickel, int(isNickel))
-    poke(c.io.dime,   int(isDime))
-    step(1)
-
-    // Advance model
-    money = if (isValid) 0 else (money + coin)
-    isValid = money >= 20
-
-    // Compare
-    expect(c.io.valid, int(isValid))
-  }
-}
-*/
-
-class VendingMachineSpec extends ChiselPropSpec {
-  property("VendingMachine should elaborate") {
-    elaborate { new VendingMachine }
-  }
-
-  ignore("VendingMachineTester should return the correct result") { }
-}