Define com programs, Computer Engineering

Assignment Help:

Q. Define COM Programs?

A COM (Command) program is binary image of a machine language program. It is loaded in memory at the lowest available segment address. Program code starts at an offset 100h, the first 1K locations being occupied by IVT.

A COM program keeps itsdata, code and stack segments within same segment. Because the offsets in a physical segment can be of 16 bits hence size of COM program is limited to 216 = 64K that involvesdata, code and stack. The subsequent program displays a COM program:

; Title add two numbers as well as store result and carry in memory variables.

; name of segment in this program is chosen to be CSEG


Related Discussions:- Define com programs

How video effects alters a video, Question : (a) What are the main aspe...

Question : (a) What are the main aspects that should be considered when dealing with green screen? (b) Explain clearly how these video effects alters a video using an illust

C program , minimum number of shelves

minimum number of shelves

Illustrate logical data processing instructions, Q. Illustrate logical Data...

Q. Illustrate logical Data Processing Instructions? AND, OR, NOT, XOR operate on binary data stored in registers. For illustration if two registers comprises data:   R1 = 10

Cohesion, Identify the type of cohesion in the following statements: 1. ...

Identify the type of cohesion in the following statements: 1. Compute average daily temperatures at various sites 2. Initialize sums and open files 3. Create new temperature rec

Explain the concepts and definitions of e-commerce, The Internet has emerge...

The Internet has emerged as a major worldwide distribution channel for goods, managerial, services, and professional jobs. It has impacted market economics and industry structure,

Show block diagram of sequential circuits, Q. Show block Diagram of sequent...

Q. Show block Diagram of sequential circuits? A sequential circuit is an interconnection of storage elements and combinational circuits. The storage elements known as flip-flop

Hard and soft real time systems, Q. Hard and Soft Real Time Systems? ...

Q. Hard and Soft Real Time Systems? Hard Real Time Systems that guarantee critical tasks are completed on time. Soft Real Time Systems that are less restrictive type o

What is socket inheritance, What is socket inheritance? Explain. Socke...

What is socket inheritance? Explain. Socket Inheritance: In a socket inheritance a reference count mechanism is utilized. Whenever a socket is first created, the system set

Why we use addressing schemes, Q Why we use addressing schemes? An ope...

Q Why we use addressing schemes? An operation code of an instruction tells the operation to be performed. This operation is executed on some data stored in memory or register.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd