diff --git a/Makefile b/Makefile
index 95a9007..fe077dc 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 
 CC 		:= emcc
 CXX 		:= emcc
-CXXFLAGS	:= -c -fbracket-depth=4800 -O3 -std=c++17 -D NDEBUG=1 -msimd128
+CXXFLAGS	:= -c -fbracket-depth=4800 -O3 -std=c++17 -msimd128
 INCLUDES 	:= -I src/nba/include/ -I src/nba/src
 LDFLAGS 	:= -s ENVIRONMENT=web -s ASSERTIONS=0 -s FILESYSTEM=0 -s STANDALONE_WASM=1 -s ALLOW_MEMORY_GROWTH\
 		   -s EXPORTED_FUNCTIONS=[_getOutput,_cyclePerFrame,_getRom,_getIRam,_getWRam,_go,_run,_main] --lto
diff --git a/src/nba/src/bus/bus.cpp b/src/nba/src/bus/bus.cpp
index 5213abf..e351363 100644
--- a/src/nba/src/bus/bus.cpp
+++ b/src/nba/src/bus/bus.cpp
@@ -392,6 +392,10 @@ void Bus::Write(u32 address, int access, T value) {
       }
 
       StopPrefetch();
+      if( (address & 0x080000cf) == address ){
+        // 此处可以命中RTC or gpio
+        printf("Write rom at %08x using value %08x\n", address, value);
+      }
 
       // TODO: figure out how 8-bit and 32-bit accesses actually work.
       if constexpr(std::is_same_v<T, u8>) {
@@ -416,6 +420,8 @@ void Bus::Write(u32 address, int access, T value) {
       StopPrefetch();
       Step(wait16[0][0xE]);
 
+      printf("Write backup at %08x using value %08x\n", address, value);
+
       if constexpr(std::is_same_v<T, u16>) value >>= (address & 1) << 3;
       if constexpr(std::is_same_v<T, u32>) value >>= (address & 3) << 3;
 
diff --git a/src/nba/src/hw/dma/dma.cpp b/src/nba/src/hw/dma/dma.cpp
index 2d55701..9b17e5d 100644
--- a/src/nba/src/hw/dma/dma.cpp
+++ b/src/nba/src/hw/dma/dma.cpp
@@ -389,6 +389,7 @@ void DMA::OnChannelWritten(Channel& channel, bool enable_old) {
          * since we cannot always determine the size at load time.
          */
         if(channel.dst_addr >= 0x0D000000) {
+          printf("seems using dma3 to read eeprom\n");
           int length = channel.length;
 
           if(length == 9 || length == 73) {