| $0 |
$zero |
Hard-wired to 0 |
| $1 |
$at |
Assembler temporary, reserved for pseudo-instructions |
| $2-$3 |
$v0, $v1 |
Function return values |
| $4-$7 |
$a0-$a3 |
Function parameters, not preserved by sub-programs |
| $8-$15 |
$t0-$t7 |
Temporary data, not preserved by subprograms |
| $16-$23 |
$s0-$s7 |
Saved registers, preserved by subprograms |
| $24-$25 |
$t8, $t9 |
Temporary data, not preserved by subprograms |
| $26-$27 |
$k0, $k1 |
Reserved for interrupt handler. Don't use! |
| $28 |
$gp |
Global Area Pointer (base of global data segment) |
| $29 |
$sp |
Stack Pointer |
| $30 |
$fp |
Frame Pointer |
| $31 |
$ra |
Return Address |