| Register | Name | Save Type | Description |
|---|---|---|---|
| 0 | $zero | - | Value is always zero. |
| 1 | $t0 | caller | Temporary |
| 2 | $t1 | caller | Temporary |
| 3 | $t2 | caller | Temporary |
| 4 | $s0 | callee | Preserved across function calls |
| 5 | $s1 | callee | Preserved across function calls |
| 6 | $v | caller | Return value |
| 7 | $sp | callee | Stack pointer |