3.3.2 - Designing Conditional Statements with Flags
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Practice Questions
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Define the overflow flag.
💡 Hint: Think about what happens when adding large negative numbers.
What does the carry flag signify?
💡 Hint: Consider unsigned addition.
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Interactive Quizzes
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What indicates an overflow condition in signed arithmetic?
💡 Hint: Remember what happens when the result exceeds the positive range.
True or False: The carry flag is always relevant in signed arithmetic.
💡 Hint: Consider the situations when two signed numbers of different signs are summed.
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Challenge Problems
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Write a program that adds two 8-bit signed integers and checks for overflow. Display an appropriate message for overflow conditions.
💡 Hint: Remember the rules of two's complement addition.
A computer uses 4-bit arithmetic. What happens if it tries to add 8 and 1? Analyze the flags that would be set and their implications.
💡 Hint: Convert the numbers into binary and simulate the addition.
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