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

Explain the fundamentals of c programming, Explain the Fundamentals of C Pr...

Explain the Fundamentals of C Programming? The C is a general purpose structured programming language. The C was developed and first implemented by the Dennis Ritchie at Bell L

What is the concept of lock, Q. What is the Concept of Lock? Locks are ...

Q. What is the Concept of Lock? Locks are used for protected access of data in a shared variable system.  There are numerous kinds of locks:  1)  Binary Locks: These locks a

Iot, what is ardiuno explain its working

what is ardiuno explain its working

Define constraints, Define Constraints Constraints can be defined as P...

Define Constraints Constraints can be defined as Preconditions (input values) and Post Conditions (output values). Preconditions on functions are constraints which input value

Digital logic, write a short note on the tri state ttl inverter

write a short note on the tri state ttl inverter

Which address is specially used by transport layer, The addressing speciall...

The addressing specially used by Transport Layer is? The addressing particularly used through transport layer is application port address.

Online movie booking system using data structures, I want to know...if ther...

I want to know...if there is a program available in C code using data structure for online movie booking system

Define memory allocation functions, The various memory allocation functions...

The various memory allocation functions are described below: (i) malloc( ) : It is a memory allocation function that assigns requested size of bytes and returns a pointer to t

Write an algorithm to outline the macro-expansion, Write an algorithm to ou...

Write an algorithm to outline the macro-expansion using macro-expansion counter. The flow of control throughout macro expansion can be implemented by using a MEC that is macro-

Write a linux terminal shell, Write a Linux terminal shell. Your shell shou...

Write a Linux terminal shell. Your shell should act similar to bash. At a high level, your shell should accomplish the following: 1. Print a prompt when waiting for input from t

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