To be fair, anything that does not support BWX is really painful to deal with.

Take, for example, an 8-bit/byte store. Without BWX the sequence would be something like:

        bic     a0, #3, t1
        and     a0, #3, t4
        ldl     t2, (t1)
        insbl   a1, t4, t3
        mskbl   t2, t4, t2
        bis     t2, t3, t2
        stl     t2, (t1)
        ret     zero, (ra)

But with BWX, it becomes:

        stb     a1, 0(a0)
        ret     zero, (ra)