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

Social networking, SOCIAL NETWORKING:  A social network is a network o...

SOCIAL NETWORKING:  A social network is a network of individuals which have some sort of interdependence on each other. This interdependence may be in the form of friendship,

Computer maitainance, How do you take of your computer?

How do you take of your computer?

Unspecified bit rate, ATM Theory - Unspecified Bit Rate Is intended for no...

ATM Theory - Unspecified Bit Rate Is intended for non-real time applications, that is, those not requiring tightly constrained delay and delay variation. Examples of applications

#title.flow chart., akrenda club has just opened their jym and pools servic...

akrenda club has just opened their jym and pools services. They need a system that can keep record of total sales of each. The club has silver and gold members. The silver members

Components of a computer, COMPONENTS OF A COMPUTER: We use a computing...

COMPONENTS OF A COMPUTER: We use a computing system basically to feed in some data that is processed by the computer and some information is generated as a result.. For this w

Computer science spatialist, Sir i am want assignment computer science...

Sir i am want assignment computer science...

The microprocessor, THE MICROPROCESSOR The three fundamental units, whi...

THE MICROPROCESSOR The three fundamental units, which comprise a CPU, have now been discussed in general terms.  So too has a microprocessor, because a microprocessor can be de

Simple Algorithm, How to make an assignment entitled "Decision Making: Fore...

How to make an assignment entitled "Decision Making: Forecasting" and I am required to make a pseudocode and flowchart based on the task.

Ipv4 and ipv6, IPv6 documented in 1994 (RFC 1752) is still a collection...

IPv6 documented in 1994 (RFC 1752) is still a collection of Draft and Proposed standards Several pre-standard implementations exist IPv6 was intended to be a pragmatic up

Direct memory access., importance of direct memory access

importance of direct memory access

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