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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.

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
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
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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.
Transcribed Image Text: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.
Transcribed Image Text: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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