作者hyujr (郁)
看板Grad-ProbAsk
标题[理工] [计组] 96中山电机
时间Mon Feb 14 00:00:41 2011
2.(15%)Consider a hypothetical 32-bit microprocessor having 32-bit
instructions composed of two fields:
the first byte contains the OP code
and the remainder the immediate operand or an operand address.
Assume that the local address bus is 32 bits and
the local data bus is 16 bits.
No time multiplexing between the address and data buses.
(1)What is the maximum directly addressable memory capacity (in bytes)?
(2)What is the mimimum bit numbers required for the program counter?
(3)Assume the direct addressing mode is applied,
how many address and data bus cycles required to fetch
an instruction and its corresponding operand or data from memory?
有关於这一题有没有人可以帮我解惑一下？
手边答案有2、3种版本都不太一样= =
可能本来对这部分就不是很清楚所以整个被搞混乱了..
谢谢~
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