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Revision 1.2, Thu May 24 16:41:45 2007 UTC (10 years, 5 months ago) by tes.longdrop.melbourne.sgi.com
Branch: MAIN
Changes since 1.1: +3 -0 lines 

Merge up to 2.6.22-rc2
Merge of 2.6.x-xfs-melb:linux:28675b by kenmcd.

#ifndef _M68K_DIV64_H
#define _M68K_DIV64_H

#include <linux/types.h>

/* n = n / base; return rem; */

#define do_div(n, base) ({					\
	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;							\
})

extern uint64_t div64_64(uint64_t dividend, uint64_t divisor);
#endif /* _M68K_DIV64_H */