int i = index - start;
        int n = ((i + m) & ~m) - i;
        advance(n);
        return n;
    }
    public void enc_ndr_small(int s) {
        buf[index] = (byte)(s & 0xFF);
        advance(1);
    }
    public int dec_ndr_small() {
        int val = buf[index] & 0xFF;
        advance(1);
        return val;
    }
    public void enc_ndr_short(int s) {
        align(2);

        int n = ( ( i + m ) & ~m ) - i;
        advance(n);
        return n;
    }


    public void enc_ndr_small ( int s ) {
        this.buf[ this.index ] = (byte) ( s & 0xFF );
        advance(1);
    }


    public int dec_ndr_small () {
        int val = this.buf[ this.index ] & 0xFF;
        advance(1);
        return val;
    }