assembly.h File Reference

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Macros
#define	CLIP_2N(y, n)
#define	CLIP_2N_SHIFT(y, n)

Macro Definition Documentation

CLIP_2N

#define CLIP_2N	(		y,
			n
	)

Value:

        { \
        int sign = (y) >> 31;  \
        if (sign != (y) >> (n))  { \
                (y) = sign ^ ((1 << (n)) - 1); \
        } \
}

CLIP_2N_SHIFT

#define CLIP_2N_SHIFT	(		y,
			n
	)

Value:

        {                   \
        int sign = (y) >> 31;                   \
        if (sign != (y) >> (30 - (n)))  {       \
            (y) = sign ^ (0x3fffffff);          \
        } else {                                \
            (y) = (y) << (n);                   \
        }                                       \
    }