Refactor the exception handling code

exceptions/arm9/source/handlers.h

@@ -6,8 +6,24 @@
 */
 
 #pragma once
+#include "types.h"
 
 void FIQHandler(void);
 void undefinedInstructionHandler(void);
 void dataAbortHandler(void);
-void prefetchAbortHandler(void);
+void prefetchAbortHandler(void);
+
+typedef struct __attribute__((packed))
+{
+    u32 magic[2];
+    u16 versionMinor, versionMajor;
+    
+    u16 processor, core;
+    u32 type;
+    
+    u32 totalSize;
+    u32 registerDumpSize;
+    u32 codeDumpSize;
+    u32 stackDumpSize;
+    u32 additionalDataSize;
+} ExceptionDumpHeader;