3. The ALU supported set on less than (slt) using just the sign bit of the adder. Lets try a set on less than operation using the values -710 and 610. To make it simpler to follow the example, lets limit the binary representations to 1 bits: 10012 and 01102. Then we get 10012 – 01102 = 10012 + 10102 = 00112. This result would suggest that -7 > 6, which is clearly wrong. Hence, we must factor in overflow in the decision.
3. The ALU supported set on less than (slt) using just the sign bit of the adder. Lets try a set on less than operation using the values -710 and 610. To make it simpler to follow the example, lets limit the binary representations to 1 bits: 10012 and 01102. Then we get 10012 – 01102 = 10012 + 10102 = 00112. This result would suggest that -7 > 6, which is clearly wrong. Hence, we must factor in overflow in the decision.
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
Related questions
Question

Transcribed Image Text:3. The ALU supported set on less than (slt) using just the sign bit of the adder. Lets try a set on less than operation
using the values -710 and 610. To make it simpler to follow the example, lets limit the binary representations to 1
bits: 10012 and 01102. Then we get 10012 – 01102 = 10012+10102 = 00112. This result would suggest that –7 > 6,
which is clearly wrong. Hence, we must factor in overflow in the decision.
Ainvert
Operation
Binvert
Carryln
Result
b.
2
Less
3
Set
Overflow
Overflow
detection
There are 4 possible cases for the Set and Overflow detection bits generated by the ALU, shown in the truth table
below. Fill in the desired value for slt for each of these cases, and then explain how use a logical operation to combine
the Set and Overflow detection bits to get this desired outcome. Draw the changes you need to make to the ALU to
get the correct slt behavior on the diagram above.
Set Overflow SLT
1
1
1
1
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images

Knowledge Booster
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.Recommended textbooks for you

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)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON

Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON

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)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON

Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON

C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON

Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning

Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education