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3 cards from this section. Quick, good the night before a test.
What does the overflow flag indicate?
Think about the limits of bit representation.
What is the difference between signed and unsigned arithmetic?
Recall what kinds of numbers you can represent.
What does the overflow flag signify?
Consider what it means when you exceed limits in arithmetic.
True or False: Adding a negative number to a positive number can cause an overflow.
Think about the expected outcome when one number is negative.
You have two 4-bit signed integers: 0111 (7) and 0001 (1). Add them. Explain the flags set and why.
Recall how signed addition works and what it wraps to.
Consider adding two signed integers: -5 (1011) and -6 (1010). What flags are affected and why?
Analyze negatives and their carry status.
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