Practice Summary Of Instruction Types And Operations (28.6.1)

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6 sample questions

Question 1.
What is the opcode for the Load instruction?
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Refer to the definition of opcode.
Question 2.
What does the Memory Address Register (MAR) do?
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Think about how the CPU accesses memory.
3Question 3.
What opcode corresponds to the Store instruction?
- 000
- 1000
- 0001
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Recall the binary coding for each instruction type.
4Question 4.
True or False: The Memory Buffer Register (MBR) holds data being transferred to memory only.
- True
- False
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Consider both directions of data flow.
Question 5.
Explain how you would implement a simple program using Load, Add, and Store instructions.
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Consider the binary opcodes and represent them in sequence.
Question 6.
Discuss the potential impacts of instruction pipeline delays in CPU during memory operations.
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Think about the consequences of waiting for memory access.

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