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

What is sgml, SGML is very large, influential, and difficult. It has been i...

SGML is very large, influential, and difficult. It has been in important industrial and commercial use for nearly two decades, and there is a important body of expertise and softwa

Resource management techniques, a company has 4 machines to do 3 jobs.each ...

a company has 4 machines to do 3 jobs.each job can be assigned to one and only machine.determine the job assignments which will minimize the total cost

Version control systems, The next major set of tasks to tackle are delete a...

The next major set of tasks to tackle are delete and update. Version control systems typically version updates to a ?le and only store the differences between the ?les. Two system

In 8085 which is called as high order / low order register, Flag is known a...

Flag is known as Low order register & Accumulator is known as High order Register.

Online movie booking system using data structures, I want to know...if ther...

I want to know...if there is a program available in C code using data structure for online movie booking system

explain compiler, Compiler is used to change the high-level language progr...

Compiler is used to change the high-level language program into machine code at a time. It doesn't needs special instruction to store in a memory, it keeps automatically. The imple

Define rules for evaluating the boolean expression, Define Rules For Evalua...

Define Rules For Evaluating the Boolean Expression? Generally, the following rules must always be followed when evaluating the Boolean expression: Primary, perform all in

Boundary tag management system, what are the two memory management scehme...

what are the two memory management scehme(boundary tag system,buddy system)

Representations or languages - artificial intelligence, Representations/Lan...

Representations/Languages Used: Many people are taught "AI" with the opening line: "The three most important things in "AI" are  representation, representation and representat

Various connectivity option available to internet subscriber, What are the ...

What are the various connectivity options available to Internet Subscribers? Internet Connectivity Options: Internet access is perhaps one of the most admired services that

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