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 do we draw in a different color in gimp, At the bottom of the toolbar t...

At the bottom of the toolbar there is a box with two lesser boxes and an arrow. The uppermost box displays the present foreground color; the lowermost box shows the present backgro

Simplify following using k-map, Q. Explain XNOR gate with three input varia...

Q. Explain XNOR gate with three input variable and draw necessary circuits. Q. Simplify FOLLOWING Using K-Map 1. m0 + m1 + m6 + m7 + m12 + m13 + m8 + m9 2. m0 + m2 + m4 +

How do you split hydrogen and oxygen gases, Q. How do you split Hydrogen an...

Q. How do you split Hydrogen and Oxygen gases in industrial electrolysis of water process? Answer:- In oxygen, electrolysis and hydrogen gas are produced at different elec

Why eprom chips are mounted in packages, Why EPROM chips are mounted in pac...

Why EPROM chips are mounted in packages that have transparent window? Since the erasure needs dissipating the charges trapped in the transistors of memory cells. This can be co

Explain about octal numbers system, Q. Explain about Octal Numbers system? ...

Q. Explain about Octal Numbers system? An octal system has 8 digits signified as 0,1,2,3,4,5,6,7. For finding equal decimal number of an octal number one has to find quantity o

How do you make an append query, Append query can be used if you would like...

Append query can be used if you would like to add new rows of data to an already active table. The process of making an append query follows these steps they are. ? Basic step

Advantages and disadvantages of public key cryptography, What are the advan...

What are the advantages and disadvantages of public key cryptography? Advantages and Disadvantages: Improved security and convenience: private keys never require be trans

What do conditional assignments get inferred into, What do conditional assi...

What do conditional assignments get inferred into? Conditionals  in  a  continuous  assignment  are  specified  through  the  "?:"  operator.  Conditionals  get inferred into a

Explain the advantages of object oriented analysis design, Advantages of Ob...

Advantages of Object oriented analysis design The OO approach inherently makes every object a standalone component which can be reused within specific stat problem domains we

What is external procedures, Q. What is External Procedures? These proc...

Q. What is External Procedures? These procedures are written as well as assembled in separate assembly modules and afterwards linked together with the main program to form a bi

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