MODE_CURSOR_BLINKING_SET
s->mode & MODE_CURSOR_BLINKING_SET)
screen_write_mode_clear(sctx, MODE_CURSOR_BLINKING_SET);
screen_write_mode_set(sctx, MODE_CURSOR_BLINKING_SET);
screen_write_mode_set(sctx, MODE_CURSOR_BLINKING_SET);
if (~cmode & MODE_CURSOR_BLINKING_SET) {