作者ccpz (OoOoOo)
看板TransCSI
标题Re: [问题] 请问 一题计概
时间Sat May 20 18:11:59 2006
※ 引述《minikitty (不会请不要装懂)》之铭言:
: 中兴的考古题
: which statement is true?
: a.Instruction register contains the address of the next instruction to be
: executed.
: b.program counter holds the instruction which will be decoded.
a,b 相反,program counter 是下一个指令的位址,Instruction register 是要执行的
指令
: c.accumulator holds the computing results of ALU.
这正确的,这篇有说
http://en.wikipedia.org/wiki/Accumulator_%28computing%29
: d.instruction fetch cycle determines what the instruction is
fetch 是从记忆体抓过来,decode 才是
: e. The next instruction to be executed is generally determined at the fetch
: cycle.
这不确定
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1F:推 minikitty:恩恩 我也是不确定﹨(╯▽╰)∕ 05/20 18:15