bit = bit32 or
{
    band = function (a, b)
        return a & b
    end,

    bnot = function (a)
        return ~a
    end,
    
    bor = function (a, b)
        return a | b
    end,
    
    bxor = function (a, b)
        return a ~ b
    end,
    
    lshift = function (a, n)
        return a << n
    end,
    
    rshift = function (a, n)
        return a >> n
    end,
}