OP_LDXB 56 tools/bpf/bpf_exp.y %token OP_RET OP_TAX OP_TXA OP_LDXB OP_MOD OP_NEG OP_JNEQ OP_JLT OP_JLE OP_LDI OP_LDXB 185 tools/bpf/bpf_exp.y | OP_LDXB number '*' '(' '[' number ']' '&' number ')' {