| Making some basic type testing. | |
| rbb: 00 00 00 00 00 00 00 00 | |
| rbb: 00 00 00 00 00 00 00 01 | |
| rbb: 00 00 00 00 00 00 00 03 | |
| rbb: 00 00 00 00 00 00 00 31 | |
| rbb: 10 00 00 00 00 00 00 01 | |
| show_rbb: IIIIIIIIIIIIIIIIIIIIIIIIIIIIIRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR |