display_done_imask
#define display_done_imasks (display_done_imask(0) | display_done_imask(1))
#define vid_imask(id) (display_done_imask(id))
display_done_imask(0) | vf0_imask(0) | vf1_imask(0))
display_done_imask(1) | vf0_imask(1) | vf1_imask(1))