insn 是什么意思？

Question

我需要想出一个 x86(-64) 反汇编器，所以我开始阅读 objdump 的源代码。在搜索了一下之后，我在一个文件中，'ia64-asmtab.h'。里面是一个结构体'ia64_main_table'：

struct ia64_main_table
{
  /* The entry in the string table that corresponds to the name of this
     opcode. */
  unsigned short name_index;

  /* The type of opcode; corresponds to the TYPE field in 
     struct ia64_opcode. */
  unsigned char opcode_type;

  /* The number of outputs for this opcode. */
  unsigned char num_outputs;

  /* The base insn value for this opcode.  It may be modified by completers. */
  ia64_insn opcode;

  /* The mask of valid bits in OPCODE. Zeros indicate operand fields. */
  ia64_insn mask;

  /* The operands of this instruction.  Corresponds to the OPERANDS field
     in struct ia64_opcode. */
  unsigned char operands[5];

  /* The flags for this instruction.  Corresponds to the FLAGS field in
     struct ia64_opcode. */
  short flags;

  /* The tree of completers for this instruction; this is an offset into
     completer_table. */
  short completers;
};

一些谷歌搜索没有显示任何有用的结果，我很难过。有谁知道'insn'代表什么？我觉得它应该代表指令，但它似乎也意味着别的东西。

Answer 1

在这里回答我自己的问题。insn 唯一可行的意思似乎是指令。谢谢你的链接，杰夫。