diff --git a/src/runtime2/component/component.rs b/src/runtime2/component/component.rs
index 0937682ed8884505429fe1e2ac2ef4671afe234f..f1d24bd7abf6821c74823e93f5f4e59401463f83 100644
--- a/src/runtime2/component/component.rs
+++ b/src/runtime2/component/component.rs
@@ -2,6 +2,7 @@ use crate::protocol::eval::*;
 use crate::protocol::*;
 use crate::runtime2::*;
 use super::{CompCtx, CompPDL};
+use super::component_ip::*;
 
 pub enum CompScheduling {
     Immediate,
@@ -39,7 +40,12 @@ pub(crate) fn create_component(
 
     if definition.source.is_builtin() {
         // Builtin component
-        todo!("implement")
+        let component = match definition.source {
+            ProcedureSource::CompRandomU32 => Box::new(ComponentRandomU32::new(arguments)),
+            _ => unreachable!(),
+        };
+
+        return component;
     } else {
         // User-defined component
         let prompt = Prompt::new(
@@ -49,4 +55,15 @@ pub(crate) fn create_component(
         let component = CompPDL::new(prompt, num_ports);
         return Box::new(component);
     }
-}
\ No newline at end of file
+}
+
+
+#[inline]
+pub(crate) fn port_id_from_eval(port_id: EvalPortId) -> PortId {
+    return PortId(port_id.id);
+}
+
+#[inline]
+pub(crate) fn port_id_to_eval(port_id: PortId) -> EvalPortId {
+    return EvalPortId{ id: port_id.0 };
+}