### Understanding the SHR Instruction in Assembly LanguageIn the example provided, we are asked to determine the final value of the AL register after the SHR (Shift Right) instruction is executed.#### Code Sequence:```assemblyMOV AL, 0D4hSHR AL, 1```1. **MOV AL, 0D4h:** This instruction moves the hexadecimal value `0D4h` into the AL register. 2. **SHR AL, 1:** This instruction shifts the bits in the AL register to the right by 1 position. The SHR operation is an arithmetic shift, meaning that the most significant bit is filled with a zero.#### Bit Manipulation Explanation:- **0D4h in binary** is `1101 0100`.- When shifted right by 1 position: - The binary result is `0110 1010`. #### Hexadecimal Conversion:- The binary `0110 1010` converts to `6Ah` in hexadecimal.#### Multiple Choice Answers:- a. After shift executes the hexadecimal, the result is **4Ah**.- b. After shift executes the hexadecimal, the result is **6Ah**.- c. After shift executes the hexadecimal, the result is **5Ah**.- d. After shift executes the hexadecimal, the result is **3Ah**.Based on the calculation, the correct answer is **b. After shift executes the hexadecimal, the result is 6Ah**.

According to the information given:- When MOV AL, 0D4h SHR AL, 1

After the SHR instruction is executed in the code sequence below, what is the final value for AL? MOV AL, OD4H SHR AL, 1 Oa. After shift executes the hexadecimal, the result is 4Ah. Ob. After shift executes the hexadecimal, the result is 6Ah. Oc. After shift executes the hexadecimal, the result is 5Ah. Od. After shift executes the hexadecimal, the result is 3Ah.

After the SHR instruction is executed in the code sequence below, what is the final value for AL? MOV AL, OD4H SHR AL, 1 Oa. After shift executes the hexadecimal, the result is 4Ah. Ob. After shift executes the hexadecimal, the result is 6Ah. Oc. After shift executes the hexadecimal, the result is 5Ah. Od. After shift executes the hexadecimal, the result is 3Ah.

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

### Understanding the SHR Instruction in Assembly Language

In the example provided, we are asked to determine the final value of the AL register after the SHR (Shift Right) instruction is executed.

#### Code Sequence:

```assembly
MOV AL, 0D4h
SHR AL, 1
```

1. **MOV AL, 0D4h:** This instruction moves the hexadecimal value `0D4h` into the AL register.

2. **SHR AL, 1:** This instruction shifts the bits in the AL register to the right by 1 position. The SHR operation is an arithmetic shift, meaning that the most significant bit is filled with a zero.

#### Bit Manipulation Explanation:

- **0D4h in binary** is `1101 0100`.
- When shifted right by 1 position:
- The binary result is `0110 1010`.

#### Hexadecimal Conversion:

- The binary `0110 1010` converts to `6Ah` in hexadecimal.

#### Multiple Choice Answers:

- a. After shift executes the hexadecimal, the result is **4Ah**.
- b. After shift executes the hexadecimal, the result is **6Ah**.
- c. After shift executes the hexadecimal, the result is **5Ah**.
- d. After shift executes the hexadecimal, the result is **3Ah**.

Based on the calculation, the correct answer is **b. After shift executes the hexadecimal, the result is 6Ah**.

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