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

Creating Navigational Buttons in Oracle, Need some help in creating custom ...

Need some help in creating custom forms navigational buttons in oracle 10g

C in, which one of the following is a valid identifier

which one of the following is a valid identifier

Greedy and intelligence search, greedy and intelligence search

greedy and intelligence search

Data mining test, Use the methods of C4.5 to design a decision tree

Use the methods of C4.5 to design a decision tree

Execute a command in operating system, Execute a command in operating syste...

Execute a command in operating system: In order to execute a command OS does the following steps:   It accepts a command from a user through mouse clicks or from t

Web browser, Web Browser:   A Web browser is software application that ...

Web Browser:   A Web browser is software application that enables you to find, retrieve, and display information available on the World Wide Web (WWW). Browser also allows you

Embedded system, what question can be asked for embedded system

what question can be asked for embedded system

File processing, what is random access file

what is random access file

Programming, write a program to display the first ten terms of the series 2...

write a program to display the first ten terms of the series 2,5,10,17,...........

Compiled language, Compiled Language:   An additional program called a...

Compiled Language:   An additional program called a compiler translates a program written in a programming language; into a new file that does not require any other program to

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