推 minikitty:恩恩 我也是不確定﹨(╯▽╰)∕ 05/20 18:15
※ 引述《minikitty (不會請不要裝懂)》之銘言：
: 中興的考古題
: 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 是下一個指令的位址,Instruction register 是要執行的
指令
: c.accumulator holds the computing results of ALU.
這正確的,這篇有說 http://en.wikipedia.org/wiki/Accumulator_%28computing%29
: d.instruction fetch cycle determines what the instruction is
fetch 是從記憶體抓過來,decode 才是
: e. The next instruction to be executed is generally determined at the fetch
: cycle.
這不確定
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