VFHBAD
vscreen[i]->v_flag |= (VFCHG | VFHBAD);
vscreen[i]->v_flag |= (VFCHG | VFHBAD);
vscreen[n]->v_flag |= (VFCHG | VFHBAD); /* Recompute, display. */
if ((vp->v_flag & VFHBAD) != 0) { /* Hash bad. */
vp->v_flag &= ~VFHBAD; /* Flag as all done. */