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
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Create an ALU with the order of operations specified.

You are tasked with designing the arithmetic unit of the following ALU.
The ALU operations are:
• A-1
• A+ 1
• A+B
• A-B
A) If you had access to a Full added, what is the most simplified expression for the B-logic (The block that
changes B before connecting to the full adder)? This block should have 3 inputs S1 50 B. and Y is the output
that gets connected to the Full adder.
B) What is the simplified expression for the block connecting 51 50 B to Cin of the Full Adder.
A) Y = 51' 50' +50¹ B + 51 50 B'
B) Cin = 50'
OA) Y = 51' 50¹ +50¹ B + S1 SO B'
B) Cin - 50
O A) Y = 51' 50' + 50 B + S1 SO B'
B) Cin = 50'
OA) Y = S1 50' + SO' B + S1 SO B¹'
B) Cin = 50
Transcribed Image Text:You are tasked with designing the arithmetic unit of the following ALU. The ALU operations are: • A-1 • A+ 1 • A+B • A-B A) If you had access to a Full added, what is the most simplified expression for the B-logic (The block that changes B before connecting to the full adder)? This block should have 3 inputs S1 50 B. and Y is the output that gets connected to the Full adder. B) What is the simplified expression for the block connecting 51 50 B to Cin of the Full Adder. A) Y = 51' 50' +50¹ B + 51 50 B' B) Cin = 50' OA) Y = 51' 50¹ +50¹ B + S1 SO B' B) Cin - 50 O A) Y = 51' 50' + 50 B + S1 SO B' B) Cin = 50' OA) Y = S1 50' + SO' B + S1 SO B¹' B) Cin = 50
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