div64.h File Reference

#include <linux/types.h>

Go to the source code of this file.

Macros
#define	do_div(n, base)

Macro Definition Documentation

#define do_div	(		n,
			base
	)

Value:

({                  \
    union {                         \
        unsigned long n32[2];               \
        unsigned long long n64;             \
    } __n;                          \
    unsigned long __rem, __upper;               \
                                \
    __n.n64 = (n);                      \
    if ((__upper = __n.n32[0])) {               \
        asm ("divul.l %2,%1:%0"             \
            : "=d" (__n.n32[0]), "=d" (__upper) \
            : "d" (base), "0" (__n.n32[0]));    \
    }                           \
    asm ("divu.l %2,%1:%0"                  \
        : "=d" (__n.n32[1]), "=d" (__rem)       \
        : "d" (base), "1" (__upper), "0" (__n.n32[1])); \
    (n) = __n.n64;                      \
    __rem;                          \
})

Definition at line 12 of file div64.h.