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 ')' {