Improve starting of the game and reduce persistent memory usage

include/PSX/jabyengine_defines.h

@@ -6,6 +6,7 @@
 #define __used          __attribute__((used))
 #define __no_align      __attribute__((packed))
 #define __no_inline     __attribute__((noinline))
+#define __no_return     __attribute__((noreturn))
 #define __always_inline __attribute__((always_inline))
 #define __section(name) __attribute__((section(name)))
 #define __collect(...) __VA_ARGS__