Define stack segment, Computer Engineering

Assignment Help:

Q. Define Stack segment ?

8086 Microprocessor supports Word stack. Stack segment parameters tell the assembler to alert linker that this segment statement states the program stack area.

A program should have a stack area in that computer is continuously carrying on numerous background operations which are completely transparent, even to an assembly language programmer, for illustration a real time clock. Every 55 milliseconds real time clock interrupts.  Every 55 ms CPU is interrupted. CPU records state of its registers and then goes about updating the system clock. When it finishes servicing system clock it has to restore registers and go back to doing whatever it was doing when interruption took place.  All such information gets recorded in stack. If your program has not any stack and if real time clock were to pulse whereas the CPU is running your program there will be no way for CPU to find the way back to your program when it was through updating the clock. 0400H byte is default size of allocation of stack. Please consider if you haven't specified stack segment it is automatically created.


Related Discussions:- Define stack segment

Explain about decimal numbers, Q. Explain about Decimal Numbers? Deci...

Q. Explain about Decimal Numbers? Decimal number system has 10 digits signified by 0,1,2,3,4,5,6,7,8 and 9. Any decimal number can be signified as a string of these digits an

Explain the difference between ram and rom, RAM: Read / Write memory, High ...

RAM: Read / Write memory, High Speed, Volatile Memory. ROM: Read only memory, Low Speed, Non Voliate Memory.   RAM- Random Access memory it is a Volatile Memory.  volatil

Equivalences & rewrite rules - artificial intelligence, Equivalences & Rewr...

Equivalences & Rewrite Rules - artificial intelligence: Along with allowing us to verify trivial theorems, tautologies make us able to establish that definite sentences are say

Weight training calculations - artificial intelligence, Weight Training Cal...

Weight Training Calculations -Artificial intelligence: Because we have more weights in our network than in perceptrons, first we have to introduce the notation: wij to denote t

What is a digital multiplexer, What is a digital multiplexer?  Ans: ...

What is a digital multiplexer?  Ans: Multiplexer: Data selector or MUX is a logic circuit selects binary information from one of several input and directs this to a sing

Explain e-mail gateways, Explain E-mail gateways. Email using SMTP work...

Explain E-mail gateways. Email using SMTP works better while both the sender and the receiver are on the Internet and can support TCP connections among sender and receiver. Tho

Workday versus oracle, Workday has set the stage to revolutionize the way c...

Workday has set the stage to revolutionize the way companies manage and facilitatevarious aspects of their business operationsby utilizing cutting-edge cloud-based technologies in

Texts in the text elements of the program, Which Texts  in the text elemen...

Which Texts  in the text elements of the program helps in changing the displayed names of variables in the parameters statement. Selection text in the elements of the program

Minimization of the logic function using k-maps, Minimize the logic functio...

Minimize the logic function F(A, B, C, D) = ∑ m(1,3,5,8,9,11,15) + d(2,13) using K-maps Ans. The logic function minimization of F(A, B, C, D) = ∑ m(1,3,5,8,9,11.15) + d(2,13) by

Direct or random access of elements, Direct or random access of elements is...

Direct or random access of elements is not possible in:- In Linked list direct or random access of elements is not possible

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