Practice Control Operations (22.6.3) - Addressing Modes, Instruction Set and Instruction Execution Flow

Practice: Control Operations

Lesson 22.6.3Addressing Modes, Instruction Set and Instruction Execution Flow

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9 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does the Program Counter (PC) do?
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Think about what the CPU needs to reference next.
Question 2.
Define what an opcode is.
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What part of the instruction tells the CPU what to do?
3Question 3.
What is the purpose of the Program Counter (PC)?
- To store the current instruction being executed
- To point to the next instruction to be executed
- To decode the instructions
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Remember its role in instruction flow.
4Question 4.
True or False: An opcode is responsible for specifying what data will be processed.
- True
- False
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Think about the roles of opcodes versus operands.
Question 5.
Describe a situation where an interrupt might be necessary and discuss how it would be processed by the CPU.
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Consider real-time events that require immediate CPU attention.
Question 6.
Construct an example involving both immediate and direct addressing modes in a single instruction.
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Think about how data can be directly linked or embedded within instructions.

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