Practice Addressing Modes, Instruction Set And Instruction Execution Flow (18.1.1)

Practice: Addressing Modes, Instruction Set and Instruction Execution Flow

Lesson 18.1.1Addressing Modes, Instruction Set and Instruction Execution Flow

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9 questions

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6 sample questions

Question 1.
What is an addressing mode?
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Think about how a CPU retrieves data.
Question 2.
Define 'Opcode'.
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What tells the CPU what to do?
3Question 3.
What is the purpose of an opcode?
- To specify the operation
- To identify the data location
- To control CPU timing
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Remember the role of opcodes in instructions.
4Question 4.
True or False: In immediate addressing, the operand is specified in the instruction.
- True
- False
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Consider how you would write an instruction using an immediate value.
Question 5.
Design a hypothetical CPU instruction set that includes various addressing modes. Explain how each addressing mode would be beneficial in programming.
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Think about how programmers benefit from various ways to access data.
Question 6.
Write an assembly language program using at least three different addressing modes. Provide an explanation of how each mode is used in your program.
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Focus on the context and describe how the modes facilitate your code.

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