Practice Commonly Used Flags - 2.1.7 | 2. Signed Arithmetic and Overflow | Computer Organisation and Architecture - Vol 2
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Commonly Used Flags

2.1.7 - Commonly Used Flags

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does the zero flag indicate?

💡 Hint: Consider the output of basic arithmetic operations.

Question 2 Easy

What happens if an overflow occurs?

💡 Hint: Think about the limits of the binary representation.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the carry flag indicate in unsigned arithmetic?

1. Overflow
2. Underflow
3. Carry out of the most significant bit

💡 Hint: Consider what happens when adding large numbers.

Question 2

True or False: The zero flag is set if the result of an operation is non-zero.

True
False

💡 Hint: Reflect on what zero means in arithmetic operations.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

You have two signed 4-bit numbers, -3 (in 2's complement 1101) and 5 (0101). Calculate their sum, and identify the flags set.

💡 Hint: Evaluate using 2's complement rules.

Challenge 2 Hard

Write a program flow that considers carry and overflow checks for adding two 8-bit unsigned numbers. Describe the necessary conditional jumps.

💡 Hint: Check how to evaluate flags after arithmetic operations.

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