Question 1: Problems in this exercise refer to the following sequence of instructions : LW $5,...
Question 1: Problems in this exercise refer to the following sequence of instructions
: LW $5, -16($5)
SW $5, -16($5)
ADD $5, $5, $5
A) Indicate dependences and their type. (40 Points)
B) Assume there is not forwarding in this pipeline processor, indicate hazards and add NOP instructions to eliminate them.
C) Assume there is full forwarding, indicate hazards and add NOP instructions to eliminate unresolved cases. The remaining problem in this exercise assumes the following clock cycle times: Without forwarding With full forwarding With ALU-ALU forwarding only 200 ps 250 ps 220 ps
D) What is the total execution time of this instruction sequence without forwarding and with full forwarding? What is the speed-up achieved by adding full forwarding to a pipeline that had no forwarding?
E) What is the total execution time of this instruction sequence with only ALU-ALU forwarding? What is the speed-up over a no-forwarding pipeline?
Homework Answers
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Question 1: Problems in this exercise refer to the following
sequence of instructions
: LW $5,...
In this exercise, we examine how data dependences affect execution in the basic 5-stage pipeline described...
In this exercise, we examine how data dependences affect execution in the basic 5-stage pipeline described in Section 4.5. Problems in this exercise refer to th following sequence of instructions: addi $2,$2,22 SW $3,20($2) OR $4,$2,$3 Also, assume the following cycle times for each of the options related to forwarding: Without Forwarding With Full Forwarding 300ps With ALU-ALU Forwarding Only 250ps 290ps 4.9.1 [10] <4.5> Indicate dependences and their type. 4.9.2 [10] <S4.5> Assume there is no forwarding in this...
Problems in this question refer to the following sequence of instructions: I1 w $%16, -100 ($6) I2: 1w $4, 8 ($16) I3: add $5, $4, $4 Also, assume the following cycle times for each of the optio...
Problems in this question refer to the following sequence of instructions: I1 w $%16, -100 ($6) I2: 1w $4, 8 ($16) I3: add $5, $4, $4 Also, assume the following cycle times for each of the options related to forwarding: With ALU-ALU Forwarding Only 220ps With Full Forwarding 240ps Without Forwarding 180ps 4. (1096) What is the total execution time of this instruction sequence without forwarding and with full forwarding? What is the speedup achieved by adding full forwarding to...
1. Given the following instruction sequence for the MIPS processor with the standard 5 stage pipeline $10, S0. 4 addi lw S2.0(S10) add sw S2,4(510) $2, $2, $2 Show the data dependences between th...
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(60 points) The following instructions are executed on the 5-stage MIPS pipelined datapath. add r...
Computer architecture help:
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We have the following sequence of instructions in MIPS lw $t4, 4($s1) or $t1, $t2, $t3...
We have the following sequence of instructions in MIPS lw $t4, 4($s1) or $t1, $t2, $t3 or $t2, $t1, $t4 or $t1, $t1, $t2 1) Indicate any hazards and what the hazard types are. 2) Assume there is no forwarding in this pipelined processor and each stage takes 1 cycle. Draw the pipeline chart and calculate how many cycles are consumed 3) Assume there is forwarding in this pipelined processor and each stage takes 1 cycle. Draw the pipeline chart...
Q4. (20 points) Consider the following sequence of instructions being processed on the 5-stage RISC-V pipelined...
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In this exercise, we examine how data dependences affect execution in the basic 5-stage pipeline described in Section 4.5. Problems in this exercise refer to th following sequence of instructions: addi $2,$2,22 SW $3,20($2) OR $4,$2,$3 Also, assume the following cycle times for each of the options related to forwarding: Without Forwarding With Full Forwarding 300ps With ALU-ALU Forwarding Only 250ps 290ps 4.9.1 [10] <4.5> Indicate dependences and their type. 4.9.2 [10] <S4.5> Assume there is no forwarding in this...
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Computer architecture help:
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