M CHANGES → CHANGES

@@ -8,6 +8,7 @@ - DS Video: Bitmap sprites use alpha bit for transparent
  - DS GX: Fix 4-color texture coordinates
 Misc:
  - DS: Set boot complete bit in RAM on boot (fixes mgba.io/i/576, mgba.io/i/580, mgba.io/i/586)
+ - DS Memory: Ensure DS9 I/O is 8-byte aligned
 
 0.6.0: (Future)
 Features:

M include/mgba-util/common.h → include/mgba-util/common.h

@@ -153,9 +153,11 @@ #define TEST_FILL_BITS(SRC, START, END, TEST) ((TEST) ? (FILL_BITS(SRC, START, END)) : (CLEAR_BITS(SRC, START, END)))
 
 #ifdef _MSC_VER
 #define ATTRIBUTE_UNUSED
+#define ATTRIBUTE_ALIGN(X)
 #define ATTRIBUTE_FORMAT(X, Y, Z)
 #else
 #define ATTRIBUTE_UNUSED __attribute__((unused))
+#define ATTRIBUTE_ALIGN(X) __attribute__((aligned(X)))
 #define ATTRIBUTE_FORMAT(X, Y, Z) __attribute__((format(X, Y, Z)))
 #endif
 

M include/mgba/internal/ds/memory.h → include/mgba/internal/ds/memory.h

@@ -90,7 +90,7 @@ uint32_t* wramBase9;
 	uint32_t* wram7;
 	uint32_t* rom;
 	uint16_t io7[DS7_REG_MAX >> 1];
-	uint16_t io9[DS9_REG_MAX >> 1];
+	uint16_t io9[DS9_REG_MAX >> 1] ATTRIBUTE_ALIGN(8);
 	struct DSSlot1 slot1;
 	struct DSSPIBus spiBus;