                           = 0x0  BPF_RSH                              = 0x00  BPF_ST                               = 0x0  BPF_STX                              = 0x0  BPF_SUB                              = 0x00  BPF_TAX                              = 0x0  BPF_TXA                              = 0x00  BPF_W                                = 0x0  BPF_X                             