Describe the challenges associated with maintaining the correct order of instructions in an out-of-order pipeline. How does the reorder buffer (ROB) help address these challenges?

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
icon
Related questions
Topic Video
Question

Describe the challenges associated with maintaining the correct order of instructions in an out-of-order pipeline. How does the reorder buffer (ROB) help address these challenges?

Expert Solution
Step 1: Introduction

In modern microprocessor design, out-of-order execution pipelines are employed to enhance processor performance by allowing instructions to be executed in a more flexible order than they are specified in the program. However, maintaining the correct order of instructions can be challenging due to the nature of out-of-order execution. The Reorder Buffer (ROB) plays a crucial role in addressing these challenges. 

Here, we will explore the challenges associated with maintaining the correct order of instructions in an out-of-order pipeline and how the ROB helps overcome these challenges.

steps

Step by step

Solved in 4 steps

Blurred answer
Knowledge Booster
Instruction Format
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education