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

Find simplified function f and implement, Q. Find simplified function F and...

Q. Find simplified function F and implement that function using only NAND gates. 1. F(A,B,C) = (A+B) (A'+B+C') (A'+B'+C') 2. F (A,B,C) = A'B'C'+B'CD'+A'BCD'+AB'C' 3. F(X,Y

What is control store, What is control store? The microroutines for all...

What is control store? The microroutines for all the instructions in the instruction set of a computer are kept in a special memory known as the control store.

Symbolic reasoning, An expert system also represents knowledge symbolica...

An expert system also represents knowledge symbolically as sets of symbols that stand for problem concepts. In AI jargon symbol is a string of characters that stands for

Performance instrumentation in parallel computer, Performance instrumentati...

Performance instrumentation focuses on how to resourcefully collect information about computation of parallel computer. Method of instrumentation mostly tries to capture informatio

What are the languages evolved in the html open standard, What are the lang...

What are the languages evolved in the html open standard Even the companies or developers themselves have been affected with such modifications to the open standards since they

Give brief explanation about the keyboards, Give brief explanation about th...

Give brief explanation about the keyboards Keyboards are generally not offered as the number of options is limited and owners of the system do not want customers keying in info

State the process of development of object oriented analysis, The Process o...

The Process of Development The approach to development can be an iterative one. It involves repeated refinement of the object model. The process needs to be controlled by an a

Explain host function, Explain Host function Host function: accepts nam...

Explain Host function Host function: accepts name of floating-point guest function with single floating-point argument as its first argument, evaluates this function at x (the

Explain about quine mckluskey method, Q. Explain about Quine McKluskey Meth...

Q. Explain about Quine McKluskey Method? A tabular method was proposed to deal with increasing number of variables called Quine McKluskey Method. This method is appropriate for

What are the properties of electronic cash, What are the properties of elec...

What are the properties of electronic cash? Properties: 1. Monetary Value: Monetary value should be backed by bank certified cashier’s cheque or cash, bank authorized cred

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