hi                 27 user/grind.c       long hi, lo, x;
hi                 31 user/grind.c       hi = x / 127773;
hi                 33 user/grind.c       x = 16807 * lo - 2836 * hi;
hi               2272 user/usertests.c   int hi;
hi               2275 user/usertests.c   hi = 1100*1024;
hi               2276 user/usertests.c   for(p = 0; p <= (uint)hi; p += PGSIZE){