1 files changed, 2 insertions, 0 deletions
diff --git a/vdp.hpp b/vdp.hpp
index 1b86784..1b67625 100644
--- a/vdp.hpp
+++ b/vdp.hpp
@@ -7,6 +7,7 @@
 
 #include <cstddef>
 #include <cstring>
+#include <cstdio>
 
 struct SpriteAttributeEntry {
     uint16_t vpos;
@@ -102,6 +103,7 @@ private:
     uint16_t readStatusRegister() const;
     uint8_t* baseFromAddressMode(uint8_t address_mode);
     const char* addressModeToString(uint8_t address_mode);
+    void traceRegWrite(FILE* const s, const uint8_t reg, const uint8_t val) const;
 
     static void runDMAMemoryToVRAM(
             uint8_t* base,