82     MD5_REVERSE_STEP(5, 0x4787c62a, 12);
 83     MD5_REVERSE_STEP(6, 0xa8304613, 17);
 84     MD5_REVERSE_STEP(7, 0xfd469501, 22);
 85     MD5_REVERSE_STEP(11, 0x895cd7be, 22);
 86     MD5_REVERSE_STEP(14, 0xa679438e, 17);
 87
 88     if (((block[14]>>24)&0xff)!='g') continue;
 89     MD5_REVERSE_STEP(15, 0x49b40821, 22);
 90
 91     int rrb = RL(block[15] + FF(Q[Qoff + 15], Q[Qoff + 15 - 1],
 92                                 Q[Qoff + 15 - 2]) + Q[Qoff + 15 - 3] + 0x49b40821, 22);
 93     Q[Qoff + 15 + 1] = rrb + Q[Qoff + 15];
 94
 95