#include "libgcc.h"

int __ucmpdi2(unsigned long long a, unsigned long long b)
{
	const DWunion au = {.ll = a};
	const DWunion bu = {.ll = b};

	if ((unsigned int)au.s.high < (unsigned int)bu.s.high)
		return 0;
	else if ((unsigned int)au.s.high > (unsigned int)bu.s.high)
		return 2;
	if ((unsigned int)au.s.low < (unsigned int)bu.s.low)
		return 0;
	else if ((unsigned int)au.s.low > (unsigned int)bu.s.low)
		return 2;
	return 1;
}
