题目内容

下面关于ARM处理器的体系结构描述哪一个是错误的。【】

A. 三地址指令格式
B. 所有的指令都是多周期执行
C. 指令长度固定
D. Load-Store结构

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用汇编指令对R15赋值，可以实现（）

A. 程序的跳转
B. 实现B指令功能
C. 子程序的返回
D. A B C都可以

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