2 files changed, 5 insertions, 1 deletions
diff --git a/include/gba/defines.h b/include/gba/defines.h
index 7fd429d9e..26e0c873f 100644
--- a/include/gba/defines.h
+++ b/include/gba/defines.h
@@ -8,6 +8,8 @@
 
 #define IWRAM_DATA __attribute__((section("iwram_data")))
 #define EWRAM_DATA __attribute__((section("ewram_data")))
+#define UNUSED __attribute__((unused))
+#define NAKED __attribute__((naked))
 
 #define ALIGNED(n) __attribute__((aligned(n)))
 
diff --git a/include/gba/types.h b/include/gba/types.h
index 33ae7df9a..4d6c24a6c 100644
--- a/include/gba/types.h
+++ b/include/gba/types.h
@@ -32,7 +32,9 @@ struct BgCnt
 {
     u16 priority:2;
     u16 charBaseBlock:2;
-    u16 dummy:4;
+    u16 dummy:2;
+    u16 mosaic:1;
+    u16 palettes:1;
     u16 screenBaseBlock:5;
     u16 areaOverflowMode:1;
     u16 screenSize:2;