+ case BUTTON_4:
+ display_font_page(23,19,(u8 *)default_font+(0x34<<3),DISPLAY_FILL_B);
+ break;
+ case BUTTON_5:
+ display_font_page(10,19,(u8 *)default_font+(0x35<<3),DISPLAY_FILL_DG);
+ break;
+ case BUTTON_6:
+ display_font_page(2,19,(u8 *)default_font+(0x36<<3),DISPLAY_FILL_LG);
+ break;
+ case BUTTON_7:
+ display_draw_rectangle(2,2,4,4,
+ DISPLAY_FILL_B,
+ 0xff);
+ break;
+ case BUTTON_8:
+ display_draw_rectangle(8,8,4,4,
+ DISPLAY_FILL_DG,
+ 0xff);
+ break;
+ case BUTTON_BETTY:
+ display_rectangle_page(80,15,16,2,DISPLAY_FILL_B,0x7f);
+ uart0_send_byte('b');
+ break;
+ case BUTTON_EXIT:
+ display_rectangle_page(90,16,16,2,DISPLAY_FILL_LG,0x7f);
+ uart0_send_byte('e');
+ break;