DO_SYNC
ti->flags &= ~DO_SYNC;
if ((ti->flags & DO_SYNC) != 0)
ti->flags &= ~DO_SYNC;
ti->flags |= DO_SYNC;
ti->flags &= ~(DO_SYNC | DO_WIDE);
ti->flags &= ~DO_SYNC;
ti->flags &= ~DO_SYNC;
if ((ti->flags & DO_SYNC) != 0)
ti->flags &= ~DO_SYNC;
ti->flags |= DO_SYNC;
ti->flags &= ~(DO_SYNC | DO_WIDE);
ti->flags &= ~DO_SYNC;