**Question 15: Conditional Bit Manipulation and Jump in Assembly**Write instructions that first clear bits 0 and 1 in the AL register. Then, if the destination operand is equal to zero, the code should jump to label L3. Otherwise, it should jump to label L4.---**Explanation:**1. **Clearing Bits 0 and 1 in AL:** - This can be achieved using the bitwise AND operation with a mask where bits 0 and 1 are 0.2. **Conditional Jump:** - After clearing the bits, check if the resulting value in AL is zero. - If AL is zero, jump to label L3. - Otherwise, jump to label L4.**Example Code (Assembly Language):**```asm; Clear bits 0 and 1 in ALAND AL, 11111100b ; Mask where bits 0 and 1 are 0, others are 1; Compare AL with zeroCMP AL, 0; Conditional jumpsJE L3 ; Jump to label L3 if AL is zero (equal)JMP L4 ; Otherwise, jump to label L4 (since JE not taken)```**Explanation of the Code:**1. `AND AL, 11111100b`: - The `AND` operation uses the mask `11111100b` (binary notation) to clear the last two bits of the AL register while keeping the other bits unchanged. 2. `CMP AL, 0`: - This instruction compares the value in the AL register with zero.3. `JE L3`: - The `JE` (Jump if Equal) instruction will jump to label `L3` if the comparison result is zero.4. `JMP L4`: - The `JMP` instruction will unconditionally jump to label `L4`. It is executed if the previous comparison (`CMP AL, 0`) is not zero.This sequence ensures that bits 0 and 1 in AL are cleared first, and then it conditionally jumps to the appropriate label based on the value in AL.

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Description: **Question 15: Conditional Bit Manipulation and Jump in Assembly**Write instructions that first clear bits 0 and 1 in the AL register. Then, if the destination operand is equal to zero, the code should jump to label L3. Otherwise, it should jump to

We need to write an assembly code for the given scenario.

Answered: 15) Write instructions that first clear…

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15) Write instructions that first clear bits 0 and 1 in AL. Then, if the destination operand is equal to zero, the code should jump to label L3. Otherwise, it should jump to label L4.

Database System Concepts

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ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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