b) Now assume you have a 2 bit full adder/subtractor, put this together with AND/OR gatesto build a simple ALU. You may assume that the adder/subtractor can correctly outputthe carry bit.Now design and build a simple ALU that has following functions on 2-bit binary inputs A and B:ANDORAddLess ThanArithmetic Right ShiftThe following outputs are required:ResultNegative: A bit indicates whether the result is negative or notZero: A bit indicates whether the result is zero or notCarryYou are also given four 2:1 muxes and you may assume that the Add unit can correctlyoutput carry bits. Q3. Logical Operation and ALUa) Design a 2-bit bitwise subtractor given 2 XOR gates, 2 full adders and an input signalC_in.

As per bartleby guideline we solved 1st question only

Answered: Q3. Logical Operation and ALU a) Design…

Q3. Logical Operation and ALU a) Design a 2-bit bitwise subtractor given 2 XOR gates, 2 full adders and an input signal C_in.

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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Question

b) Now assume you have a 2 bit full adder/subtractor, put this together with AND/OR gates
to build a simple ALU. You may assume that the adder/subtractor can correctly output
the carry bit.
Now design and build a simple ALU that has following functions on 2-bit binary inputs A and B:
AND
OR
Add
Less Than
Arithmetic Right Shift
The following outputs are required:
Result
Negative: A bit indicates whether the result is negative or not
Zero: A bit indicates whether the result is zero or not
Carry
You are also given four 2:1 muxes and you may assume that the Add unit can correctly
output carry bits.

Q3. Logical Operation and ALU
a) Design a 2-bit bitwise subtractor given 2 XOR gates, 2 full adders and an input signal
C_in.

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