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

Project of interactive powerpoint in human computer , Hi There, can you h...

Hi There, can you help me with my small project please, i have sent it yesterday and you dont replay. can you please ethir lem me know you can do it or no Regrads Meshari

Create a flowchart that displays the student''s avera, Ask questiCreate a f...

Ask questiCreate a flowchart that displays the student''s average score for three quizzes. + Assume that there are 3 sections each having 5 students + The only valid number to be

Twisted pairs, Twisted Pairs: Twisted pairs are familiar to all of us ...

Twisted Pairs: Twisted pairs are familiar to all of us as the copper wire telephone lines. These are of low frequency, and support a limited bandwidth (one voice channel) but

Computer input, COMPUTER INPUT: Figure shows input information for a ty...

COMPUTER INPUT: Figure shows input information for a typical airborne digital computer.  The sensors in Figure develop analogue electrical signals representing: -

Basic concepts in internet, INTERNET Internet: The global network of ...

INTERNET Internet: The global network of computers linked by exclusive and regular phone lines and microwave and satellite signals. Extranet: An extranet is the part of

Paper system, Paper System : When setting up a computer system you need to...

Paper System : When setting up a computer system you need to ask yourself 'Does the system you plan to operate work manually, i.e., on paper?' It is a popular misconception that t

Where data could be hidden, QUESTION (a) Being just employed as junior ...

QUESTION (a) Being just employed as junior forensic examiner at SAI computer forensic Ltd, your supervisor told you, ‘hey Moona Tambi, we have received a hard disk for examinat

Write separate programs for each of the above points, Question 1 Describe ...

Question 1 Describe the following with respect to creating Web Forms in .Net environment- Web Form Life Cycle Creating a Web Form Write programs with corresponding

Cp, I NEED FLOW CHART ANT DRAWINGS OF BASIC OPERATIONS OF COMPUTER

I NEED FLOW CHART ANT DRAWINGS OF BASIC OPERATIONS OF COMPUTER

Database management software, Database Management Software: For storage of...

Database Management Software: For storage of large amounts of varied data, and rapid retrieval and interpretations of data, the database is the ideal tool. It is most useful for 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