**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

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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

7th Edition

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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