| Op-code | Operand | Description |
|---|---|---|
| 1 | RXY | LOAD reg. R from cell XY |
| 2 | RXY | LOAD reg. R with XY |
| 3 | RXY | STORE reg. R at XY |
| 4 | 0RS | MOVE R to S |
| 5 | RST | ADD S and T into R (2’s comp.) |
| 6 | RST | ADD S and T into R (floating pt.) |
| 7 | RST | OR S and T into R |
| 8 | RST | AND S and T into R |
| 9 | RST | XOR S and T into R |
| A | R0X | ROTATE reg. R X times |
| B | RXY | JUMP to XY if R = reg. 0 |
| C | 000 | HALT |