2. Considers the basic, MIPS, 5-stage pipeline (F, D, EX, M, WB). Show how the instructions in the sequence given below will proceed through the pipeline: - We will predict that the beq instruction is not taken which is a wrong prediction - When the beq instruction is executed, the value in $1 is equal to the value in $2 beq $1, $2, X lw $10, 0($11) sub $14, $10, $10 X: add $4, $1, $2 lw $1,0($4) sub $1, $1, $1 add $1, $1, $1

2. Considers the basic, MIPS, 5-stage pipeline (F, D, EX, M, WB). Show how the instructions in the sequence given below will proceed through the pipeline: - We will predict that the beq instruction is not taken which is a wrong prediction - When the beq instruction is executed, the value in $1 is equal to the value in $2 beq $1, $2, X lw $10, 0($11) sub $14, $10, $10 X: add $4, $1, $2 lw $1,0($4) sub $1, $1, $1 add $1, $1, $1

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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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)
What is the state of the 8088’s flags after executing the instructions in parts (a)through (c) of problem 7?(in photo) Assume that the following initial state exists before executing the instructions. (AX) = 8001H (SI) = 0200H (DI)= 0300H (DS:100H) = F0H (DS:200H) = F0H (DS:201H) = 01H (DS:300H) = 34H (DS:301H) = 12H
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?
8. Assuming that (AX) = 001016 (BX) = 010016, and (DS) = 100016, what happens if the XLAT instruction is executed?
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