. ________ 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
查看答案
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
__________ has the advantage of flexibility, but the disadvantage of complexity.
A. Stack addressing
B. Displacement addressing
C. Direct addressing
D. Register addressing
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
A branch instruction in which the branch is always taken is _________.
A. conditional branch
B. unconditional branch
C. BRO
D. BRZ