- The ISA which the three of us decided upon when we were hungry. Absolutely nothing can go wrong :)
| r2 | r1 | r22 | r12 | F | F | Op | Code | Function |
|---|---|---|---|---|---|---|---|---|
| r2 | r1 | r22 | r12 | 0 | 0 | 0 | 0 | Logic NAND |
| r2 | r1 | r22 | r12 | 1 | 0 | 0 | 0 | Logic NOR |
| r2 | r1 | I | m | m | 0 | 0 | 1 | Branch BLT |
| r1 | I | m | m | e | 0 | 1 | 0 | Load |
| r2 | r1 | r22 | r12 | 0 | 0 | 1 | 1 | Arithmetic ADD |
| r2 | r1 | r22 | r12 | 1 | 0 | 1 | 1 | Arithmetic SUB |
| r2 | r1 | r22 | r12 | 0 | 1 | 0 | 0 | Logic SRL |
| r2 | r1 | r22 | r12 | 1 | 1 | 0 | 0 | Logic SLL |
| r2 | r1 | I | m | m | 1 | 0 | 1 | Branch BEQ |
| r2 | r1 | I | m | m | 1 | 1 | 0 | Store |
| I | m | m | e | 0 | 1 | 1 | 1 | Jump |
| r2 | r1 | r22 | r11 | 1 | 1 | 1 | 1 | Move |