1 files changed, 20 insertions, 0 deletions
diff --git a/src/test/scala/ChiselTests/Decoder.scala b/src/test/scala/ChiselTests/Decoder.scala
new file mode 100644
index 00000000..c9b9f418
--- /dev/null
+++ b/src/test/scala/ChiselTests/Decoder.scala
@@ -0,0 +1,20 @@
+package ChiselTests
+import Chisel._
+
+object Insts {
+  def ADD = MInt("b0000000??????????000?????0110011")
+}
+
+class Decoder extends Module {
+  val io = new Bundle {
+    val inst  = UInt(INPUT, 32)
+    val isAdd = Bool(OUTPUT)
+  }
+  io.isAdd := (Insts.ADD === io.inst)
+}
+
+class DecoderTester(c: Decoder) extends Tester(c) {
+  poke(c.io.inst, 0x1348533)
+  step(1)
+  expect(c.io.isAdd, int(true))
+}