Quiz5:  mov     b,a
        anl     a,#85
        xch     a,b
        rrc     a
        anl     a,#85
        add     a,b
        mov     b,a
        anl     a,#51
        xch     a,b
        rr      a
        rrc     a
        anl     a,#51
        add     a,b
        mov     b,a
        anl     a,#7
        xch     a,b
        swap    a
        anl     a,#7
        add     a,b
        ret

; --------------------------

Quiz6:  mov     b,#0
        jz      Quiz8
Quiz7:  mov     r0,a
        dec     r0
        anl     a,r0
        inc     b
        jnz     Quiz7
Quiz8:  mov     a,b
        ret