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

Client server using c, client server or multithreaded client-server, where ...

client server or multithreaded client-server, where server will create pool of worker threads (say 5) to provide services to pool of clients (say 5 ).Server should be behaving as a

Counter, mod12 counter connection diagram

mod12 counter connection diagram

What does a lock object involve, What does a lock object involve? The t...

What does a lock object involve? The tables. The lock argument.

Explain the uses of keyboards, Explain the uses of Keyboards An alphanu...

Explain the uses of Keyboards An alphanumeric keyboard for a graphics system is used primarily as a device for entering text strings. Keyboards can also be provided with featur

Is the address bus unidirectional, The address bus is unidirectional due to...

The address bus is unidirectional due to the address information is always given by the Micro Processor to address a memory location of an input or output devices.

Compatibility of sound cards, Q. Compatibility of Sound cards? Compati...

Q. Compatibility of Sound cards? Compatibility: Sound cards should be compatible at both software and hardware levels with industry standards.  Most software particularly gam

Explain tree, Tree (recursive definition) A tree is a finite set of one...

Tree (recursive definition) A tree is a finite set of one or more than one nodes such that. (1) There is a specially designated node known as the root. (2) The left over

What is the principle of locality, What is "the principle of locality"? ...

What is "the principle of locality"? It's the nature of the processes that they refer only to the small subset of the total data space of the process. I.e. the process frequ

Explain about butterfly permutation, Q. Explain about Butterfly permutation...

Q. Explain about Butterfly permutation? Butterfly permutation:  This kind of permutation is attained by interchanging the most significant bit in address with least significant

How to write good assembly programs, Preparation of writing the program ...

Preparation of writing the program 1.  Write an algorithm for your program closer to assembly language. For instance the algorithm for preceding program will be: get NUM1

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