| # | Instruction | Description |
| 1 | brne | branch if equal |
| 2 | dec | decrement |
| 3 | in | read from I/O location |
| 4 | ldi | load immediate value |
| 5 | out | store to I/O location |
| 6 | pop | pop from the stack |
| 7 | rcall | relative subroutine call |
| 8 | push | push onto the stack |