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Consider the code sequence below Iw $t1, 4($to) add $2, $t1, $t2 Iw $t3, 16($t0) add $s3, $t3, $t2 Iw $t4, 28($t0) add $4, $t4, $t2 Suppose there is no forwarding allowed, and for the result of a Iw to be consumed by the following R-type of instruction requires 2 bubbles to be placed between the two instructions. Is it possible for the scheduler to juxtapose the commands in such a way that there is no need for any bubbles? If yes, give an example of how it can be done.

Consider the code sequence below Iw $t1, 4($to) add $2, $t1, $t2 Iw $t3, 16($t0) add $s3, $t3, $t2 Iw $t4, 28($t0) add $4, $t4, $t2 Suppose there is no forwarding allowed, and for the result of a Iw to be consumed by the following R-type of instruction requires 2 bubbles to be placed between the two instructions. Is it possible for the scheduler to juxtapose the commands in such a way that there is no need for any bubbles? If yes, give an example of how it can be done.

Computer Networking: A Top-Down Approach (7th Edition)
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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Consider the code sequence below Iw $t1, 4($t0) add $s2, $t1, $t2 Iw $t3, 16($t0) add $3, $t3, $t2 Iw $t4, 28($t0) add $s4, $t4, $t2 Suppose there is no forwarding allowed, and for the result of a lw to be consumed by the following R-type of instruction requires 2 bubbles to be placed between the two instructions. Is it possible for the scheduler to juxtapose the commands in such a way that there is no need for any bubbles? If yes, give an example of how it can be done.
Transcribed Image Text:Consider the code sequence below Iw $t1, 4($t0) add $s2, $t1, $t2 Iw $t3, 16($t0) add $3, $t3, $t2 Iw $t4, 28($t0) add $s4, $t4, $t2 Suppose there is no forwarding allowed, and for the result of a lw to be consumed by the following R-type of instruction requires 2 bubbles to be placed between the two instructions. Is it possible for the scheduler to juxtapose the commands in such a way that there is no need for any bubbles? If yes, give an example of how it can be done.
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