OVERLAY_F_ACTIVATED
if (odd->odd_flags & OVERLAY_F_ACTIVATED) {
ASSERT((odd->odd_flags & OVERLAY_F_ACTIVATED) == 0);
odd->odd_flags |= OVERLAY_F_ACTIVATED;
if (odd->odd_flags & OVERLAY_F_ACTIVATED) {
if ((odd->odd_flags & OVERLAY_F_ACTIVATED) == 0) {
if (odd->odd_flags & OVERLAY_F_ACTIVATED)