Practice Handling Different Symbol Sizes (3.2.1) - Understanding Overflow in Signed and Unsigned Arithmetic

Practice: Handling Different Symbol Sizes

Lesson 3.2.1Understanding Overflow in Signed and Unsigned Arithmetic

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9 questions

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6 sample questions

Question 1.
What does the Overflow Flag indicate?
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Think about when operations generate results outside of the number range.
Question 2.
In unsigned arithmetic, do we consider the Overflow Flag?
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Reflect on the definitions of the two types of arithmetic.
3Question 3.
What is the purpose of the Overflow Flag?
- To indicate a carry-out
- To signal invalid results
- To confirm correct results
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Think about when results exceed the capability of your number system.
4Question 4.
(True or False) The Carry Flag is used in unsigned arithmetic only.
- True
- False
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Remember the distinction between signed and unsigned arithmetic.
Question 5.
Using 4-bit signed binary, add the values -1 and -1. What will be the result, and explain if there is an overflow?
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Consider how -1 is expressed in two's complement.
Question 6.
Create two signed 4-bit numbers that, when added together, yield a carry but not an overflow. Identify the numbers and the resulting flags.
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Base your answer on small positive integers that can sum up without exceeding the range.

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