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

Websites, Hanson websites are built to work for your business and are built...

Hanson websites are built to work for your business and are built on the concept of intelligent website. An intelligent website is more than just a brochure on the web. It allows y

Computer Literacy Assignment Task, Assignment Task: You are required to dev...

Assignment Task: You are required to develop working solutions in Excel that will manage the annual budget, current month’s inventory, and a list of the current month’s transaction

CAI EXPLANATION, What is CAI? Explain its pitfalls

What is CAI? Explain its pitfalls

Random reading and writing and Closing a fcb file, The 21H function and the...

The 21H function and the 22H function of the 21H interruption are the ones in charge of realizing the random readings and writings in that order. The random register number and the

Hardware, Hardware Hardware includes the cable and a Hub/Switch that...

Hardware Hardware includes the cable and a Hub/Switch that will connect the participating computers together. Printers or any other peripherals connected to one computer can

Logic instructions , They are used to act upon logic operations on the oper...

They are used to act upon logic operations on the operators. AND OR, NEG NOT TEST XOR AND INSTRUCTION Function: It acts upon the conjunction of the operators bit by bit. Syntax: A

Computer network.., what is the difference between internet and world wide ...

what is the difference between internet and world wide web?

Gov problem, "The government is auctioning off oil leases at two sites: 1 a...

"The government is auctioning off oil leases at two sites: 1 and 2. At each site, 100,000 acres of land are to be auctioned. Cliff Ewing, Blake Barnes, and Alexis Pickens are biddi

Pitfals, what is CAI

what is CAI

Python Strings and Python Lists, Python Strings: Strings in Python are rec...

Python Strings: Strings in Python are recognized as an adjacent set of characters in among quotation marks. Python permits for either pairs of single or double quotes. Subsets of s

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