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

Cryptarithmetic problem in artificial intelligence, Solve the following cry...

Solve the following cryptarithmetic problem using Prolog: P I N G P O N G + F U N --------- I G N I P Each of the 7 different letters stands for a different digit. The

Existential elimination, Existential Elimination : Now we have a sente...

Existential Elimination : Now we have a sentence, A, is with an  existentially quantified variable, v, so then just for every constant symbol k, that it does not appear anywhe

Computer graphics, what do you mean by inter leasing.how it is display the ...

what do you mean by inter leasing.how it is display the frame having 525 scan lines

Information system and information technology, (a) Explain the following te...

(a) Explain the following terms: Information System and Information Technology. (b) Describe the main components of a computer. Illustrate your answer by a block diagram. (c)

What is winchester technology, What is Winchester technology? The disk ...

What is Winchester technology? The disk and the read/write heads are placed in a sealed air-filtered enclosure known as Winchester technology.

Determine number of final selector in 10000 line exchange, In a 10000 line ...

In a 10000 line exchange, 0000 to 2999 is allotted to x group of subscribers, out of which 40% are active during busy hour. The remaining numbers are domestic numbers out of which

How can a parent and child process communicate, How can a parent and child ...

How can a parent and child process communicate? A parent and child can communicate by any of the normal inter-process communication schemes (pipes, sockets, message queues, sha

Define program counter, Define Program Counter(PC) The Program Counter ...

Define Program Counter(PC) The Program Counter holds the address of the next instruction to be read from memory after the current instruction is implemented.

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