[理工] 中央資工在職考題99年第四題
4.Which of the following is correct?
(1)The CPU and memory are normally connected
by three groups of connections:
protocol bus, address bus and control bus.
(2)In the isolated I/O addressing method, the
CPU treats each register in the I/O
controller as a word (or a location) in memory.
(3)The content(內容) of the instruction register
(IR) is the data that is going to be read.
(4)In the RISC architecture, complex instructions are
simulated using a subset of simple instructions.
(5)In the programmed I/O method, the I/O device informs
the CPU when it is ready to transferring(傳送) data.
覺得4是對的，但其他是為什麼錯呢？
去找書之後，我的解答如下
1.cpu and memory are normally connected by FSB(front side bus)
2.不曉得
3.IR是存現在執行的指令內容
4.正確
5.應該是相反的
有仁人智士可以解我的疑惑嗎，萬分感謝
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 111.83.41.246