nasmlib.h: Introduce ALIGN helpers
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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@ -254,6 +254,13 @@ void standard_extension(char *inname, char *outname, char *extension);
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for (pos = head, n = (pos ? pos->next : NULL); pos; \
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pos = n, n = (n ? n->next : NULL))
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/*
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* Power of 2 align helpers
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*/
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#define ALIGN_MASK(v, mask) (((v) + (mask)) & ~(mask))
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#define ALIGN(v, a) ALIGN_MASK(v, (a) - 1)
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#define IS_ALIGNED(v, a) (((v) & ((a) - 1)) == 0)
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/*
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* some handy macros that will probably be of use in more than one
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* output format: convert integers into little-endian byte packed
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