This table visualises the space of eBPF opcodes. It was generated by this hack
*s represent opcodes that are exposed but not actually used, or used internally but not exposed
Note that there are gaps, but no empty columns.
There's also a prettier version here
| 0x00 | 0x01 | 0x02 | 0x03 | 0x04 | 0x05 | 0x06 | 0x07 |