cPtr需要同步复位

src/main/scala/backBoard/shin/SMUnit.scala

@@ -92,7 +92,9 @@ abstract class SMUnitBase(depth: Int = 4) extends Module with RequireAsyncReset{
 
   io.cnt := cPtr - rPtr
 
-  when( io.isComf ){
+  when( io.flush ){
+    cPtr := 0.U
+  } .elsewhen( io.isComf ){
     cPtr := wPtr
   }