IS) In R-type instruction, the Opcode are all 0 and what operation to perform is

Question

IS) In R-type instruction, the Opcode are all 0 and what operation to perform is represented in the ‘Function" field in the instruction. a. True b. False 16) To interpret machine code, we first identify if opcode are all O's If it is,then the instruction is R-type and the function bits tell operation types. Otherwise, opcode tells operation. a. True b. False IPS architecture has two types of branches: conditional and unconditional. For example, Branch if equal (beq) is an unconditional branch while jump' is a conditional branch. a. True b.False 18) In the Single-cycle microarchitecture implementation, cycle time limited by longest instruction a. True b. False 19) Multi-cycle processor is faster than single-cycle processor a. True b. False 20) Virtual memory is larger and cheaper than Cache b. False a. True

Explanation / Answer

15. TRUE

16.FALSE

17.TRUE

18.TRUE

CPU timeX,P = Instructions executedP * CPI * Clock cycle time

CPI : CYCLES FOR INSTRUCTION

19.TRUE

20.TRUE

Basis for Comparison Virtual Memory Cached Memory Basic Virtual memory extends the capacity of main memory for the user. Cache memory fastens the data accessing speed of CPU. Nature Virtual memory is technique. Cache memory is a storage unit. Function Virtual memory allows execution of the program that is larger than the main memory. Cache memory stores the copies of original data that has been recently used. Memory management Virtual memory is managed by the operating system. Cache memory is fully managed by the hardware. Size Virtual memory is far larger than cached memory. Cache memory has bounded size. Mapping Virtual memory requires mapping structures to map virtual address to physical address. No mapping structures are required as such in a cache memory.

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