This instruction works as follows R1 mem11 mem2 In a multi cycle datapath implementation, this instruction will a Use the MDR twice b Use the ALU once c Use the shift to left unit twice d None of the above 18 Consider the following hypothetical instruction MemS mem1, R1, mem2 This instruction works as follows mem1 R1 mem2 One of the following is correct about this instruction 19 By comparing the hypothetical instructions given in Questions (17) and (18), if we run these instructions on the same processor, then one of the following is correct a Both instructions have the same CPI b MemS executes faster than SubMem c SubMem executes faster than MemS d Mems does not need the MDR 20 The CPI for the instruction SubMem in Question (17) is a 10 b 11 c 12 d 13

Question

This instruction works as follows  R1 mem11  mem2  In a multi cycle datapath implementation, this instruction will  a  Use the MDR twice b  Use the ALU once c  Use the  shift to left  unit twice d  None of the above 18  Consider the following hypothetical instruction  MemS mem1, R1, mem2 This instruction works as follows   mem1 R1  mem2  One of the following is correct about this instruction  19  By comparing the hypothetical instructions given in Questions (17) and (18), if we run these instructions on the same processor, then one of the following is correct  a  Both instructions have the same CPI b  MemS executes faster than SubMem c  SubMem executes faster than MemS d  Mems does not need the MDR 20  The CPI for the instruction SubMem in Question (17) is  a  10 b  11 c  12 d  13

Accepted Answer

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Question

This instruction works as follows: R1[mem11-[mem2] In a multi-cycle datapath implementation, this instruction will: a. Use the MDR twice b. Use the ALU once c.

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