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计算机组成原理实验1-四位ALU算术逻辑单元设计实验

上传者: L416116256 | 上传时间:2020/3/7 11:37:31 | 文件大小:403KB | 文件类型:rar
计算机组成原理实验1-四位ALU算术逻辑单元设计实验
一. 实验目的1.了解ALU的功能和使用方法2.认识和掌握超前进位的设计方法3.认识和掌握ALU的逻辑电路组成4.认识和掌握ALU的设计方法二. 实验原理从结构原理图上可推知,本实验中的ALU运算逻辑单元由4个一位的ALU运算逻辑单元组成。
每位的ALU电路由全加器和函数发生器组成。
事实上,是在全加器的基础上,对全加器功能的扩展来实现符合要求的多种算术/逻辑运算的功能。
为了实验多种功能的运算,An、Bn数据是不能直接与全加器相连接的,它们遭到功能变量F3—F1的制约,由此,可由An、Bn数据和功能变量Xn、Yn,然后,再将Xn、Yn和下一位进位Cn-1通过全加器进行全加运算以实现所需的运算功能。
C0为最低位的进位输入端,C4为最高位ideas进位输入端,Sn为运算结果。
一位算/逻辑运算单元的逻辑表达式如下

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评论信息

  • herosmiling:
    用来做了实验报告,感谢2018-04-26
  • dooooos:
    非常好。。课程需要2018-02-27
  • tianyayahaochi:
    挺好的,是想要的2014-04-27
  • 小寇CoCo:
    有用,帮人做了个作业,呵呵,谢谢楼主2013-12-26
  • yueqiunabanbian:
    还可以挺详细的~~~2013-10-11

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