Quiz 2

What is the function of the Execution Unit (EU)?

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What are the two modes of operation for the 8086 microprocessor?

• Minimum mode

• Maximum mode

What is the role of the ALU in the 8086 microprocessor?

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What is the purpose of the RESET signal in the 8086 microprocessor?

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What is the function of the Code Segment (CS) register in the 8086 microprocessor?

• It contains the base address of the current code segment.

• It points to the current data segment.

• It points to the current stack.

• It points to the extra segment.

What does the Data Segment Register (DS) do?

• Points to the current data segment.

• Contains the base address of the current code segment.

• Points to the current stack.

• Points to the extra segment.

How is the 20-bit physical address calculated from the Code Segment (CS) and Instruction Pointer (IP)?

• By shifting CS 4-bits to the left and adding IP.

• By adding CS and IP directly.

• By multiplying CS by 16 and adding IP.

• By using only the contents of IP.

What is the purpose of the Stack Segment Register (SS)?

• It points to the current stack.

• It contains the base address of the current code segment.

• It points to the current data segment.

• It points to the extra segment.

What is pipelining in the context of the 8086 microprocessor?

• A mechanism to speed up execution by overlapping instruction fetch with execution.

• A method to increase the size of the instruction queue.

• A technique to manage memory segments.

• A way to handle interrupts.

What is the function of the Flag Register in the 8086 microprocessor?

• To hold the status flags that affect the operation of the processor.

• To store the base address of the current code segment.

• To point to the current data segment.

• To manage the instruction queue.