source: svn/newcon3bcm2_21bu/nexus/platforms/97552/src/bare/libgcc/ucmpdi2.c

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/* From Linux/arch/mips/lib/ucmpdi2.c */
/* As a special exception, if you link this library with other files,
   some of which are compiled with GCC, to produce an executable,
   this library does not by itself cause the resulting executable
   to be covered by the GNU General Public License.
   This exception does not however invalidate any other reasons why
   the executable file might be covered by the GNU General Public License.
*/


typedef int word_type __attribute__ ((mode (__word__)));
struct DWstruct {
        int low, high;
};

typedef union {
        struct DWstruct s;
        long long ll;
} DWunion;


word_type __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;
}