Practice Implementation Of Increment/decrement Without Alu (16.2.3)

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8 questions

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6 sample questions

Question 1.
What does the INR operation do?
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Think about what happens when you add one.
Question 2.
What is the purpose of a register?
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Consider where the processor keeps numbers it's currently calculating.
3Question 3.
What is the purpose of the INC instruction?
- To add one to a value
- To subtract one from a value
- To multiply a value by two
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Think about how you increase a number.
4Question 4.
True or False: The zero flag indicates a positive result from an ALU operation.
- True
- False
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Consider what zero means in programming.
Question 5.
Design a hypothetical instruction set using 8 commands, including increments and decrements for values stored in memory and registers.
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Visualize how each command would dictate a single action.
Question 6.
Given a register R3 has the value 5, write a set of instructions that increments R3 three times and decrements it twice.
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Count how each instruction changes the value.

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