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Revision 1.2, Fri Mar 4 14:41:21 2005 UTC (12 years, 7 months ago) by nathans.longdrop.melbourne.sgi.com
Branch: MAIN
Changes since 1.1: +0 -0 lines 

Merge up to 2.6.11
Merge of 2.6.x-xfs-melb:linux:21721a by kenmcd.

#ifndef _ASM_M32R_DIV64
#define _ASM_M32R_DIV64

/* $Id: div64.h,v 1.2 2005/03/04 14:41:21 nathans.longdrop.melbourne.sgi.com Exp $ */

/* unsigned long long division.
 * Input:
 *  unsigned long long  n
 *  unsigned long  base
 * Output:
 *  n = n / base;
 *  return value = n % base;
 */
#define do_div(n, base)						\
({								\
	unsigned long _res, _high, _mid, _low;			\
								\
	_low = (n) & 0xffffffffUL;				\
	_high = (n) >> 32;					\
	if (_high) {						\
		_mid = (_high % (unsigned long)(base)) << 16;	\
		_high = _high / (unsigned long)(base);		\
		_mid += _low >> 16;				\
		_low &= 0x0000ffffUL;				\
		_low += (_mid % (unsigned long)(base)) << 16;	\
		_mid = _mid / (unsigned long)(base);		\
		_res = _low % (unsigned long)(base);		\
		_low = _low / (unsigned long)(base);		\
		n = _low + ((long long)_mid << 16) +		\
			((long long)_high << 32);		\
	} else {						\
		_res = _low % (unsigned long)(base);		\
		n = (_low / (unsigned long)(base));		\
	}							\
	_res;							\
})

#endif  /* _ASM_M32R_DIV64 */