Editing Loop unrolling (section)

==== Converting to MIPS assembly language ====
The following is MIPS assembly code that will compute the dot product of two 100-entry vectors, A and B, before implementing loop unrolling. The code below omits the loop initializations:
* Initialize loop count ($7) to 100.
* Initialize dot product ($f8) to 0.
* Initialize <code>A[i]</code> pointer ($5) to the base address of <code>A</code>.
* Initialize <code>B[i]</code> pointer ($6) to the base address of <code>B</code>.
Note that the size of one element of the arrays (a <code>double</code>) is 8 bytes.<syntaxhighlight lang="asm" line="1">
    loop3:
            l.d     $f10, 0($5)       ; $f10 ← A[i]
            l.d     $f12, 0($6)       ; $f12 ← B[i]
            mul.d   $f10, $f10, $f12  ; $f10 ← A[i]*B[i]
            add.d   $f8, $f8, $f10    ; $f8 ← $f8 + A[i]*B[i]
            addi    $5, $5, 8         ; increment pointer for A[i] by the size
                                      ; of a double.
            addi    $6, $6, 8         ; increment pointer for B[i] by the size
                                      ; of a double.
            addi    $7, $7, -1        ; decrement loop count
    test:
            bgtz    $7, loop3         ; Continue if loop count > 0
</syntaxhighlight>