1 files changed, 4 insertions, 0 deletions

diff --git a/isa/checker.h b/isa/checker.h
index 70393b6..1ea572b 100644
--- a/isa/checker.h
+++ b/isa/checker.h
@@ -43,5 +43,9 @@ struct checker {
     instruction_context inst;
     bool halted = false;
     funcmem mem;
+    checker()
+    {
+        ctlregs.fill(0);
+    }
     void execute();
 };