1 files changed, 3 insertions, 1 deletions

diff --git a/isa/isa.h b/isa/isa.h
index 3effb5b..3b8220e 100644
--- a/isa/isa.h
+++ b/isa/isa.h
@@ -5,10 +5,12 @@
 
 #include "infra/pipetrace.h"
 
-enum class ctlreg {
+enum ctlreg {
     DATA_INSTRUCTION_FIELD_BUFFER,  // (df << 3) | if_buffer
     DATA_INSTRUCTION_FIELD_SAVED,   // (df_saved << 3) | if_saved
     INT_ENABLE,                     // (int_enable_delay << 1) | int_enable
+
+    NUM_CTLREGS,
 };
 
 struct instruction_context {