x86_opcode
struct x86_opcode insn_opcode;
str_opcode(struct x86_opcode *opcode)
str_operand_enc(struct x86_opcode *opcode)
static const char *str_opcode(struct x86_opcode *);
static const char *str_operand_enc(struct x86_opcode *);
struct x86_opcode *opcode = &insn->insn_opcode;