Editing Loop unrolling (section)

==== Unrolling the Loop in MIPS ====
The following is the same as above, but with loop unrolling implemented at a factor of 4. Note again that the size of one element of the arrays (a <code>double</code>) is 8 bytes; thus the 0, 8, 16, 24 displacements and the 32 displacement on each loop.<syntaxhighlight lang="asm" line="1">
    loop3:
            l.d     $f10, 0($5)         ; iteration with displacement 0
            l.d     $f12, 0($6)
            mul.d   $f10, $f10, $f12
            add.d   $f8, $f8, $f10

            l.d     $f10, 8($5)         ; iteration with displacement 8
            l.d     $f12, 8($6)
            mul.d   $f10, $f10, $f12
            add.d   $f8, $f8, $f10

            l.d     $f10, 16($5)        ; iteration with displacement 16
            l.d     $f12, 16($6)
            mul.d   $f10, $f10, $f12
            add.d   $f8, $f8, $f10

            l.d     $f10, 24($5)        ; iteration with displacement 24
            l.d     $f12, 24($6)
            mul.d   $f10, $f10, $f12
            add.d   $f8, $f8, $f10

            addi    $5, $5, 32
            addi    $6, $6, 32
            addi    $7, $7, -4
    test:
            bgtz    $7, loop3           ; Continue loop if $7 > 0
</syntaxhighlight>