computer: get rid of i

1 files changed, 1 insertions, 1 deletions

diff --git a/nandgame/cpp/simpc_ui.h b/nandgame/cpp/simpc_ui.h
index 4a990a6..71b651f 100644
--- a/nandgame/cpp/simpc_ui.h
+++ b/nandgame/cpp/simpc_ui.h
@@ -6,7 +6,7 @@
 #include <memory>
 
 void simpc_ui_init(void);
-void simpc_ui_write(const std::unique_ptr<Vcomputer> &topp, int &i,
+void simpc_ui_write(const std::unique_ptr<Vcomputer> &topp, uint64_t &i,
                     StepPosition_t sp);
 void simpc_ui_finish_message(const std::unique_ptr<VerilatedContext> &contextp,
                              const std::unique_ptr<Vcomputer> &topp);