Q3: For the following program, explain what happened as they are executed. Find the final value for all registers and offset memory locations. MOV BX,ABOFH MOV AX, FFFAH XCHG AX, BX Label: SUB AL, 04 JNC Label CLC MOV (BX+5], AX HLT

Q3: For the following program, explain what happened as they are executed. Find the final value for all registers and offset memory locations. MOV BX,ABOFH MOV AX, FFFAH XCHG AX, BX Label: SUB AL, 04 JNC Label CLC MOV (BX+5], AX HLT

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter10: Pointers

Section10.1: Addresses And Pointers

Problem 12E

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Concept explainers

Storage Devices

Storage devices can store digital information/data and applications (in the form of audio, video, image, etc.) to process the result of any computational work. They are a kind of computer hardware that stores information and instruction to be processed. A storage unit is a part of a computer system. Every computer has a storage device. The storage devices work as a memory. They are also known as a storage medium, digital storage, or storage media, which temporarily or permanently store information. They are used either internally or externally in the computer system, server, or any computation device to hold the information. Examples include a pen drive, CD, DVD, floppy disk, memory card and so forth.

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Microprocessor

Q3: For the following program, explain what happened as they are executed. Find
the final value for all registers and offset memory locations.
MOV BX,ABOFH
MOV AX, FFFAH
XCHG AX, BX
Label: SUB AL, 04
JNC Label
CLC
MOV (BX+5], AX
HLT

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