69   jint     read_int_mb(jint b0);  // UNSIGNED5 coding, 2-5 byte cases

    69   // This encoding, called UNSIGNED5, is taken from J2SE Pack200.

    70   // It assumes that most values have lots of leading zeroes.

    71   // Very small values, in the range [0..191], code in one byte.

    72   // Any 32-bit value (including negatives) can be coded, in

    73   // up to five bytes.  The grammar is:

    74   //    low_byte  = [0..191]

    75   //    high_byte = [192..255]

    76   //    any_byte  = low_byte | high_byte

    77   //    coding = low_byte

    78   //           | high_byte low_byte

    79   //           | high_byte high_byte low_byte

    80   //           | high_byte high_byte high_byte low_byte

    81   //           | high_byte high_byte high_byte high_byte any_byte

    82   // Each high_byte contributes six bits of payload.

    83   // The encoding is one-to-one (except for integer overflow)

    84   // and easy to parse and unparse.

    85 

    86   jint read_int_mb(jint b0) {

    87     int     pos = position() - 1;

    88     u_char* buf = buffer() + pos;

    89     assert(buf[0] == b0 && b0 >= L, "correctly called");

    90     jint    sum = b0;

    91     // must collect more bytes:  b[1]...b[4]

    92     int lg_H_i = lg_H;

    93     for (int i = 0; ; ) {

    94       jint b_i = buf[++i]; // b_i = read(); ++i;

    95       sum += b_i << lg_H_i;  // sum += b[i]*(64**i)

    96       if (b_i < L || i == MAX_i) {

    97         set_position(pos+i+1);

    98         return sum;

    99       }

   100       lg_H_i += lg_H;

   101     }

   102   }