Quiz 2

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

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?

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

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.