Practice Supervisor Mode And Privileges (2.1.6) - Signed Arithmetic and Overflow

Practice: Supervisor Mode and Privileges

Lesson 2.1.6Signed Arithmetic and Overflow

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9 questions

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6 sample questions

Question 1.
What is the significance of supervisor mode?
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Think about the access level needed for certain system functions.
Question 2.
What does the zero flag indicate?
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Link it to basic arithmetic results.
3Question 3.
What is the role of the carry flag in arithmetic operations?
- Indicates zero result
- Indicates overflow
- Indicates negative result
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Think about what happens when arithmetic results exceed maximum storage.
4Question 4.
True or False: The overflow flag is used only in unsigned arithmetic.
- True
- False
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Remember the use of two's complement representation.
Question 5.
Design an algorithm that checks the equality flag and utilizes it in a typical program flow structure. Describe what happens when the flag is set versus when it is not.
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Think about scenarios like loops and conditionals in programming.
Question 6.
Consider the implications of using the carry flag in an arithmetic operation. What would happen if you fail to check the carry flag when adding two maximum values?
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Reflect on how overflow can disrupt a program's logic flow.

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