题目内容

A single micro-operation generally involves which of the following?

A. a transfer between registers
B. a transfer between a register and an external bus
C. a simple ALU operation
D. all of the above

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. ________ is when the result may be larger than can be held in the word size being used.

A. Overflow
B. Arithmetic shift
C. Underflow
D. Partial product

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A branch instruction performed by CPU is to update ____.

A. MBR to contain the instruction
B. Program counter to contain the
C. MAR to contain the address of current instruction
D. IR to contain the instruction that just fetched from memory

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__________ has the advantage of flexibility, but the disadvantage of complexity.

A. Stack addressing
B. Displacement addressing
C. Direct addressing
D. Register addressing

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Cache’s _______polity means write operation to main memory as well as to cache.

A. write back
B. LRU
C. write through
D. unified cache

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A single micro-operation generally involves which of the following?

A. a transfer between registers B. a transfer between a register and an external bus C. a simple ALU operation D. all of the above

. ________ is when the result may be larger than can be held in the word size being used.

A branch instruction performed by CPU is to update ____.

__________ has the advantage of flexibility, but the disadvantage of complexity.

Cache’s _______polity means write operation to main memory as well as to cache.

A. a transfer between registers
B. a transfer between a register and an external bus
C. a simple ALU operation
D. all of the above