cons_update_mode
bool cons_update_mode(bool);
cons_update_mode(gfx_state.tg_fb_type != FB_TEXT);
(void) cons_update_mode(gfx_state.tg_fb_type != FB_TEXT);
(void) cons_update_mode(gfx_state.tg_fb_type != FB_TEXT);
(void) cons_update_mode(gfx_state.tg_fb_type != FB_TEXT);
if (cons_update_mode(gfx_state.tg_fb_type != FB_TEXT))
(void) cons_update_mode(true);
(void) cons_update_mode(true);
(void) cons_update_mode(true);
(void) cons_update_mode(false);
(void) cons_update_mode(true);
cons_update_mode(false);
cons_update_mode(true);
(void) cons_update_mode(false);
cons_update_mode(true);
if (!cons_update_mode(VBE_VALID_MODE(vbe_get_mode())))