Working adder.

src/main/scala/EXBarrier.scala

@@ -0,0 +1,29 @@
+package FiveStage
+
+import chisel3._
+import chisel3.experimental.MultiIOModule
+
+class EXBarrier extends MultiIOModule {
+  val io = IO(
+    new Bundle {
+      val writeDataIn = Input(UInt(32.W))
+      val writeDataOut = Output(UInt(32.W))
+      val writeAddrIn = Input(UInt(5.W))
+      val writeAddrOut = Output(UInt(5.W))
+      val writeEnableIn = Input(Bool())
+      val writeEnableOut = Output(Bool())
+    })
+
+  val writeData = RegInit(UInt(32.W), 0.U)
+  writeData := io.writeDataIn
+  io.writeDataOut := writeData
+
+  val writeAddr = RegInit(UInt(5.W), 0.U)
+  writeAddr := io.writeAddrIn
+  io.writeAddrOut := writeAddr
+
+  val writeEnable = RegInit(Bool(), false.B)
+  writeEnable := io.writeEnableIn
+  io.writeEnableOut := writeEnable
+}
+