diff --git a/inc/hal/hal.h b/inc/hal/hal.h
index cbc069d..cb752ea 100644
--- a/inc/hal/hal.h
+++ b/inc/hal/hal.h
@@ -3,6 +3,7 @@
 #define _HAL_H_
 
 
+void debug(int);
 void debug(const char* str);
 void hal_init_screen(int w, int h);
 void hal_poll_input(bool *ptr);
diff --git a/src/gfx/layout.cpp b/src/gfx/layout.cpp
index 7632851..3fb828a 100644
--- a/src/gfx/layout.cpp
+++ b/src/gfx/layout.cpp
@@ -63,4 +63,4 @@ int layout::allocate_(node* current, int depth) {
         slots[0].content = current;
         return 0;
     }
-}
\ No newline at end of file
+}
diff --git a/src/hal.cpp b/src/hal.cpp
index 37e98d9..5f25083 100644
--- a/src/hal.cpp
+++ b/src/hal.cpp
@@ -8,3 +8,18 @@
 #ifdef AVR
 #include "hal/avr.cpp"
 #endif
+
+
+void debug(int n){
+    const char hex[]="0123456789ABCDEF";
+    char buf[]="0x00000000\n";
+    buf[2]=hex[(n>>28)&0xF];
+    buf[3]=hex[(n>>24)&0xF];
+    buf[4]=hex[(n>>20)&0xF];
+    buf[5]=hex[(n>>16)&0xF];
+    buf[6]=hex[(n>>12)&0xF];
+    buf[7]=hex[(n>>8)&0xF];
+    buf[8]=hex[(n>>4)&0xF];
+    buf[9]=hex[(n>>0)&0xF];
+    debug(buf);
+}
\ No newline at end of file