题目内容

The advantages of register addressing are that only a small address field is needed in the instruction and ________memory references are required.

A. no
B. one
C. two
D. three

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Vector and array processors fall into the ________ category of computer systems.

A. SIMD
B. SISD
C. MISD
D. MIMD

The _________ cycle occurs at the beginning of each instruction cycle and causes an instruction to be fetched from memory.

A. execute
B. indirect
C. fetch
D. interrupt

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

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