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Assembly.Language.note.Ⅰ

 
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1.汇编语言的组成:

  • 汇编指令: 机器码的助记符, 有对应的机器码.
  • 伪指令   : 没有对应的机器码, 由编译器执行, 计算机并不执行.
  • 其它符号: 如:+, -, *, /, 等, 由编译器识别, 无对应的机器码.

2.三类信息的交互:

  • 存储单元的地址(地址信息).
  • 器件的选择,读或写的命令(控制信息).
  • 读或写的数据(数据信息).
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