Type attributes
[Types and attributes]

Defines
#define	IWRAM_DATA   __attribute__((section(".iwram")))
	Put variable in IWRAM (default).
#define	EWRAM_DATA   __attribute__((section(".ewram")))
	Put variable in EWRAM.
#define	EWRAM_BSS   __attribute__((section(".sbss")))
	Put non-initialized variable in EWRAM.
#define	IWRAM_CODE   __attribute__((section(".iwram"), long_call))
	Put function in IWRAM.
#define	EWRAM_CODE   __attribute__((section(".ewram"), long_call))
	Put function in EWRAM.
#define	ALIGN(n)   __attribute__((aligned(n)))
	Force a variable to an n-byte boundary.
#define	ALIGN4   __attribute__((aligned(4)))
	Force word alignment.
#define	PACKED   __attribute__((packed))
	Pack aggregate members.
#define	DEPRECATED   __attribute__((deprecated))
	Deprecated notice.
#define	INLINE   static inline
	Inline function declarator.

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Define Documentation

#define ALIGN4   __attribute__((aligned(4)))

Force word alignment.

Note:

In the old days, GCC aggregates were always word aligned. In the EABI environment (devkitPro r19 and higher), they are aligned to their widest member. While technically a good thing, it may cause problems for struct-copies. If you have aggregates that can multiples of 4 in size but don't have word members, consider using this attribute to make struct-copies possible again.

#define DEPRECATED   __attribute__((deprecated))

Deprecated notice.

Indicates that this function/type/variable should not be used anymore. Replacements are (usually) present somewhere as well.

#define INLINE   static inline

Inline function declarator.

`inline' inlines the function when -O > 0 when called, but also creates a body for the function itself `static' removes the body as well

#define PACKED   __attribute__((packed))

Pack aggregate members.

By default, members in aggregates are aligned to their native boundaries. Adding this prevents that. It will slow access though.

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