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 the drawback of top down parsing of backtracking, Write down the dr...

Write down the drawback of top down parsing of backtracking. Following are disadvantages of top down parsing of backtracking: (i) Semantic actions can't be performed whereas

What is the function of an ip packet screening router, What is the function...

What is the function of an IP packet screening Router? Explain with the help of a diagram. Function of an IP Packet Screening Router: A screening router is the most fund

Address - operand data types, Q. Address - operand data types? A...

Q. Address - operand data types? Addresses : Operands residing in memory are specified by their memory address while operands residing in registers are specified by a re

Learn synchronization principles, Q. Learn synchronization principles? ...

Q. Learn synchronization principles? To learn synchronization subsequent dependencies are recognized:  i)  Data Dependency: These are RAW, WAW and WAR dependency.  ii) Co

Which objects are independent transport objects, Which objects are independ...

Which objects are independent transport objects? Domains, Data elements, Tables, Technical settings for tables, Secondary indexes for transparent tables, Structures, Views, Ma

Illustrate domain name system, Q. Illustrate Domain Name System? Domain...

Q. Illustrate Domain Name System? Domain name is a name which is given to a network for ease of reference. Domain refers to a group of computers which are known by a single com

Microprocessor, overlapping segmentation process in 8086

overlapping segmentation process in 8086

Implication connective - modus ponens rule, Implication connective - Modus ...

Implication connective - Modus ponens rule: We notice that this is a trivial example, so it highlights how we use truth tables: as the first line is the only one when both abo

Software engineering, assignment on transaction flow, transform flow, trans...

assignment on transaction flow, transform flow, transform mapping: refining the architectural design

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