Practice Eight-bit Adder-subtractor Circuit (7.7) - Arithmetic Circuits - Part B
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Eight-bit Adder-Subtractor Circuit

Practice - Eight-bit Adder-Subtractor Circuit

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does BCD stand for?

💡 Hint: Think about how we encode decimal numbers in binary.

Question 2 Easy

What is the primary purpose of the eight-bit adder-subtractor circuit?

💡 Hint: Recall the cascading connection of four-bit adders.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the maximum decimal sum that can be accurately represented without BCD correction?

7
9
10

💡 Hint: Refer back to when correction logic is needed.

Question 2

True or False: An eight-bit adder-subtractor can add multi-digit BCD numbers efficiently.

True
False

💡 Hint: Think about cascading solutions discussed in class.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a complete circuit to add two eight-bit numbers using the concepts learned, including necessary corrections for BCD sums over 9.

💡 Hint: Think about the structure and what adjustments are needed for subtraction.

Challenge 2 Hard

Given a BCD sum exceeding 9, outline how the circuitry should handle the correction logically.

💡 Hint: Use the Boolean expressions to guide your circuit design.

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Reference links

Supplementary resources to enhance your learning experience.