Initial Chisel core implementation

src/main/scala/issue/IssueQueue.scala

@@ -0,0 +1,24 @@
+import chisel3._
+
+class IssueQueue(p: CoreParams = CoreParams()) extends Module {
+  val io = IO(new Bundle {
+    val enqValid = Input(Bool())
+    val enq = Input(new RenamePacket(p))
+    val enqReady = Output(Bool())
+    val issueValid = Output(Bool())
+    val issue = Output(new RenamePacket(p))
+    val issueReady = Input(Bool())
+    val flush = Input(Bool())
+  })
+
+  val intRs = Module(new ReservationStation(p, p.intRsEntries))
+  intRs.io.enqValid := io.enqValid
+  intRs.io.enq := io.enq
+  intRs.io.issueReady := io.issueReady
+  intRs.io.flush := io.flush
+
+  io.enqReady := intRs.io.enqReady
+  io.issueValid := intRs.io.issueValid
+  io.issue := intRs.io.issue
+}
+