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/** Align to the nearest higher address.
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/** Align to the nearest higher address.
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 *
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 *
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 * @param s Address or size to be aligned.
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 * @param s Address or size to be aligned.
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 * @param a Size of alignment, must be power of 2.
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 * @param a Size of alignment, must be power of 2.
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 */
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 */
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#ifdef ppc32    /* Nasty ppc32 hack. FIX ME. */
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#   define ALIGN_UP(s, a)       ((s) % (a) ? (((s) / (a)) + 1) * (a) : (s))
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#else
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#define ALIGN_UP(s, a)      (((s) + ((a) - 1)) & ~((a) - 1))
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#   define ALIGN_UP(s, a)       (((s) + ((a) - 1)) & ~((a) - 1))
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#endif
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#endif
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#endif