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 direct addressing mode with example, Q. Explain Direct Addressing M...

Q. Explain Direct Addressing Mode with example? Direct Addressing Mode A direct operand signifies to contents of memory at an address referred by the name of the variable.

What is a program counter, It is a 16 bit special function register in the ...

It is a 16 bit special function register in the 8085 microprocessor. It remains track of the next memory address of the instruction that is to be implemented once the implementatio

Types of structure charts, Types of Structure Charts Transaction struc...

Types of Structure Charts Transaction structure - control module calls subordinate modules, each of which handles a certain transaction More afferent processes Le

Full adder, design a FULL adder with two half adders and an or gate

design a FULL adder with two half adders and an or gate

Describe thead, Q. Describe THEAD, TBODY and TFOOT tag? THEAD, TBODY, ...

Q. Describe THEAD, TBODY and TFOOT tag? THEAD, TBODY, TFOOT , , and form groups of rows. specifies that a group of rows are heade

Colour management, There are three primary colours in pigments - Red, Yello...

There are three primary colours in pigments - Red, Yellow and Blue. There are two ways to produce more colours:   Physical Mixing: Physically mix colours to produce a new colour

What is random access memory, Q. What is Random Access Memory? We will ...

Q. What is Random Access Memory? We will discuss RAM as an example of sequential circuit. A memory unit is a collection of storage cells or flip flops along with associated cir

Unification algorithm, Unification Algorithm: Here if notice for insta...

Unification Algorithm: Here if notice for instance that to unify two sentences as we must find a substitution that makes the two sentences the same. Furthermore remember there

Define stack segment, Q. Define Stack segment ? 8086 Microprocessor su...

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 s

Control flow diagram, creating a control flow question for atm system

creating a control flow question for atm system

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