User Account

All Pages

stack instructions, Basic Computer Science

Assignment Help:
These instructions permit the use of the stack to store or recover data.
POP
POPF
PUSH
PUSHF

POP INSTRUCTION
Purpose: It improves a portion of information from the stack
POPF INSTRUCTION
Purpose: It extracts the flags stored on the stack
POPF
This command moves bits of the word stored on the superior part of the stack to the flag register.
PUSH INSTRUCTION
Purpose: It puts a word on the stack.
Syntax:
PUSH source
The PUSH instruction reduces by two the value of SP and then transfers the data of the source operator to the new resulting address on the just modified register.
The decrement on the address is due to the fact that when adding values to the stack, this one raises from the greater to the smaller segment address, consequently by subtracting 2 from the SP register what we do is to raise the size of the stack by two bytes, which is the only amount of information the stack can handle on every input and output of information.
PUSHF INSTRUCTION
Purpose: It situates the value of the flags on the stack.
Syntax:
PUSHF
This command reduces by 2 the value of the SP register and then the content of the flag register is relocated to the stack, on the address indicated by SP.
The flags are gone stored in memory on the similar bits indicated on the POPF command.

Related Discussions:- stack instructions

Mis, #questionexplain strategic mis categories in detail with illustration....

#questionexplain strategic mis categories in detail with illustration..

What is deadlock ?Differentiate two types of resources ?, • A set of proce...

• A set of process is in a deadlock state if each process in the group is waiting for an event that can be caused by only another process in the set. In other words, each member of

Quiz for your learning activity, The development of your learning module is...

The development of your learning module is very time consuming, so it is recommended that you begin creating your learning module during this first week. Before you begin, download

Operation research, Least cost method

Least cost method

Indexing and abstracting databases, Indexing and Abstracting Databases: ...

Indexing and Abstracting Databases: A study of growth of indexing and abstracting services over the years would show that during the past two centuries, these services have be

Explain any two issues in web design, Question 1 Explain any two issues in...

Question 1 Explain any two issues in web design Question 2 Mention the factors considered for good design Question 3 What are the advantages of graphical system?

Construct a conditional profits table, Question (a) A dairy wants to de...

Question (a) A dairy wants to determine the quantity of butter it should produce to meet the demand. Past records have shown the following demand pattern:

I/O Stream and Arrays, Write a program that: 1. Ask the user for names of t...

Write a program that: 1. Ask the user for names of the two iput files and a name of an output file. The two input files contain integers in any order. Eachimput file contains no mo

Microprocessors, what is the role of microprocessors in IT? how they are us...

what is the role of microprocessors in IT? how they are used in medical field? how they are used in our real lifes? how they are used in latest technology?

Area of curve, Write a program to find the area under the curve y = f(x) be...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd