diff --git a/src/main/scala/riscv/Core.scala b/src/main/scala/riscv/Core.scala
index 6b6dd0e..f234a69 100644
--- a/src/main/scala/riscv/Core.scala
+++ b/src/main/scala/riscv/Core.scala
@@ -214,6 +214,7 @@ object createDynamicPipeline {
       val decode = new Stage("ID").setName("decode")
 
       override val issuePipeline = new StaticPipeline {
+        override val parentPipeline = dynamicPipeline
         override val stages = Seq(fetch, decode)
         override val config = dynamicPipeline.config
         override val data = dynamicPipeline.data
diff --git a/src/main/scala/riscv/DynamicPipeline.scala b/src/main/scala/riscv/DynamicPipeline.scala
index f411fb1..618e3e6 100644
--- a/src/main/scala/riscv/DynamicPipeline.scala
+++ b/src/main/scala/riscv/DynamicPipeline.scala
@@ -131,12 +131,20 @@ trait DynamicPipeline extends Pipeline {
 
   override def serviceOption[T](implicit tag: ClassTag[T]): Option[T] = {
     super.serviceOption[T] match {
-      case None => issuePipeline.serviceOption[T]
+      case None => issuePipeline.serviceOptionLocal[T]
       case someService => someService
     }
   }
 
   override def hasService[T](implicit tag: ClassTag[T]): Boolean = {
-    super.hasService[T] || issuePipeline.hasService[T]
+    super.hasService[T] || issuePipeline.hasServiceLocal[T]
+  }
+
+  def serviceOptionLocal[T](implicit tag: ClassTag[T]): Option[T] = {
+    super.serviceOption[T]
+  }
+
+  def hasServiceLocal[T](implicit tag: ClassTag[T]): Boolean = {
+    super.hasService[T]
   }
 }
diff --git a/src/main/scala/riscv/StaticPipeline.scala b/src/main/scala/riscv/StaticPipeline.scala
index e51aabf..80c41e2 100644
--- a/src/main/scala/riscv/StaticPipeline.scala
+++ b/src/main/scala/riscv/StaticPipeline.scala
@@ -4,6 +4,8 @@ import spinal.core._
 
 import collection.mutable
 
+import scala.reflect.ClassTag
+
 private class PipelineDataInfo {
   var firstOutputStageId = Int.MaxValue
   var lastOutputStageId = -1
@@ -25,6 +27,7 @@ private class PipelineDataInfo {
 
 trait StaticPipeline extends Pipeline {
   private var pipelineRegsMap: Map[Stage, PipelineRegs] = null
+  val parentPipeline: DynamicPipeline = null
 
   def pipelineRegs: Map[Stage, PipelineRegs] = {
     assert(pipelineRegsMap != null)
@@ -110,4 +113,31 @@ trait StaticPipeline extends Pipeline {
       stage.connectLastValues()
     }
   }
+
+  override def serviceOption[T](implicit tag: ClassTag[T]): Option[T] = {
+    if (parentPipeline == null) {
+      super.serviceOption[T]
+    } else {
+      super.serviceOption[T] match {
+        case None => parentPipeline.serviceOptionLocal[T]
+        case someService => someService
+      }
+    }
+  }
+
+  override def hasService[T](implicit tag: ClassTag[T]): Boolean = {
+    if (parentPipeline == null) {
+      super.hasService[T]
+    } else {
+      super.hasService[T] || parentPipeline.hasServiceLocal[T]
+    }
+  }
+
+  def serviceOptionLocal[T](implicit tag: ClassTag[T]): Option[T] = {
+    super.serviceOption[T]
+  }
+
+  def hasServiceLocal[T](implicit tag: ClassTag[T]): Boolean = {
+    super.hasService[T]
+  }
 }