LXR linux/arch/parisc/lib/ucmpdi2.c

   1#include <linux/module.h>
   2
   3union ull_union {
   4        unsigned long long ull;
   5        struct {
   6                unsigned int high;
   7                unsigned int low;
   8        } ui;
   9};
  10
  11int __ucmpdi2(unsigned long long a, unsigned long long b)
  12{
  13        union ull_union au = {.ull = a};
  14        union ull_union bu = {.ull = b};
  15
  16        if (au.ui.high < bu.ui.high)
  17                return 0;
  18        else if (au.ui.high > bu.ui.high)
  19                return 2;
  20        if (au.ui.low < bu.ui.low)
  21                return 0;
  22        else if (au.ui.low > bu.ui.low)
  23                return 2;
  24        return 1;
  25}
  26