Comment 5 for bug 391083

Ok, it seems like gdb treats (long int) as 32 bits sometimes, depending on what program has been loaded possibly... so ignore that.
The problem is this:
1800 int yint = unfix(y);
If I change that to long int, then (modulo #xffffffffffffffff #x100000000) works correctly. But the division-by-zero can still be triggered if y==0, so a check needs to be added.