Assume a 5 stage MIPS pipeline (like the one in the slides) with the following stages: FETCH DECODE EXEC MEM WB. Use the following instructions to answer the question. Assume the first (ADDI) instruction is FETCHED in clock cycle 1, the second in clock cycle 2, the third in clock cycle 3, etc. ***In what pipeline stage is the LW instruction during clock cycle 6???***

Assume a 5 stage MIPS pipeline (like the one in the slides) with the following stages: FETCH DECODE EXEC MEM WB. Use the following instructions to answer the question. Assume the first (ADDI) instruction is FETCHED in clock cycle 1, the second in clock cycle 2, the third in clock cycle 3, etc. In what pipeline stage is the LW instruction during clock cycle 6???

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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12 Question 5: Basic pipeline branch determination Сycle B. Fill in the pipeline for he following instructions: A A, B, beq G, C, D, E, F, G A 1 C. Assume beq G is taken. Does this program execute correctly? Why? A 2 Hint: beq G means jump to the instruction G А D. What do you need to do (and when, i.e., which cycle) to get the correct behavior? Hint: What should happen to instructions C, D, E A 4 5 7 IF ID EX МЕМ WB IF ID EX МЕМ WB
Consider the time required for each MIPS instruction to be executed. Instruction Register write Register read ALU Memory Access fetch TDNT(2020/2021) 50 ns 50 ns 50 ns 50 ns 50 ns 1. Calculate the total time for non-pipelined execution for five (5) instructions 2. Calculate the total time for pipelined execution for five (5) Instructions 3. Calculate the speed-up ratio of the pipelined execution 4. Calculate the speed-up ratio if 100 instructions are added to the above five instructions
Refer to the screenshot;
Assume a pipelined CPU with data forwarding. In the following code, suppose the ADD instruction is in the EX stage. From which buffer register of the pipeline will the ADD instruction read the value of operand X1? LDUR X1, MEM[X2, #12] SUB X1, X2, X3 ADD X3, X4, X1 Question 6 options: EX/MEM МЕМ/WB ID/EX IF/ID
Why is a single instruction in a pipeline datapath not shorter than that in a multi-cycle datapath even though totally a pipeline mechanism performs better. Please select the correct choice. a - Because of quicker time of execution of large number of instructions b - Because pipelined CPUs generally work at a higher clock frequency than the RAM clock frequency, c - Because it is possible to execute multiple instructions sequentially d - Because in a pipeline architecture, 1 instruction abandons the pipeline in each cycle, so the CPI will be of 1. e - Because increase in the number of pipeline stages increases the number of instructions executed simultaneously.
Can you show me step by step please
clock cycle at which the first of the instructions is fetched as clock cycle 1. Assume that if one instruction reads a register during the same clock cycle as another instruction is writing it, the new value will be read. Do not reorder the instructions. Instructions are fetched and executed exactly in the order given below, with the pipeline stalling if necessary.addi $s2, $s2, 1li $s6, 5add $s1, $s2, $s3move $s5, $s6lw $t1, 0($s5)
Please look at the question properly, it is asking for the machine code for the MIPS instruction below. Please write thorougly so I am able to understand it.
2. Consider the following instruction: beq $t0, $t1, 0xA010 What are the values of Control signals generated by the MIPS architecture to execute this instruction. Show with a chart and explain it all clearly. (You may draw a simplified datapath flow)
The following sequence of instructions will execute on the 5-stage pipelined MIPS datapath: I-MEM Address Instruction OXAO L1: slt $t4, $t0, $t1 OXA4 beq $t4, $1, L2 OXA8 slt $14, $t0, $t2 OXAC beq $t4, $1, L2 OXBO slt $t4, $t0, $t3 ОхВ4 beq $t4, $1, L2 OXB8 j L3 OXBC L2: addi $t0, $t0, 5 OXCO j L1 ОХC4 L3: List data dependencies for the entire code (i.e. a->b would mean instruction b is dependent on instruction a ): Which data dependencies are hazards? How many clock cycles does it take to execute the entire code for a normal pipelined processor? (i.e. all 5 stages of the last instruction have been completed) How many clock cycles will it take for a 2-issue in-order superscalar pipelined processor to execute the entire code?
CPI stands for clock cycles per instruction. Speedup from pipelining = (Number of pipeline stages) / (Achieved CPI ). Assume a 5-stage pipeline. Assume that CPI = 1 when there are no pipeline stalls (the ideal case). Now assume that every branch instruction causes a 3 clock cycle stall in the pipeline. Assume that for the program being executed 30% of executed instructions are branch instructions. What speedup from pipelining is achieved by this program?
The following sequence of MIPS instructions is processed using a 5-stage pipeline, as discussed in class. What is the minimum number of clock cycles are required, from start to finish? Assume that, if necessary, only pipeline stalls (not data forwarding) can be used to prevent data hazards. lw $1,0($2) addi $3,$3,1 add $2,$1,$1 add $5,$4,$4