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

Deadlocks, What is methods For handling Deadlocks?

What is methods For handling Deadlocks?

Prelude to programming concepts and design 5th edition, Input a list of pos...

Input a list of positive numbers, terminated by 0, into an array numbers []. Then display the array and the largest and smallest number in it.

Write the steps to use the network setup wizard, Problem Write the step...

Problem Write the steps to use the Network setup wizard. Elaborate the optional subcomponents in the windows component wizard. 1. Click Next to skip past the Welcome screen.

Introduction to microprocessor, The microprocessor is at times referred to ...

The microprocessor is at times referred to as the ''brain'' of the personal computer, and is responsible for the processing of the instructions which creates computer software. It

Explain popular way commonly used to evaluate interfaces, Question: Usi...

Question: Using a questionnaire is a popular way commonly used to evaluate interfaces. (a) Describe advantages of using questionnaires as a means to evaluate interfaces.

Computer architecture, mips program in java

mips program in java

Socket programming, Important: • No cheating will be tolerated. • No late s...

Important: • No cheating will be tolerated. • No late submissions. Total Points for this programming assignment: 100 The goal of your programming assignment is to build and experim

In-door patient department, In-door Patient Department Ideally all ...

In-door Patient Department Ideally all features of OPD.  Both OPD and IPD modules should be inter-linked.  In addition all details pertaining to the patient's medica

Experiment with computer system measurements, In this assignment, you need ...

In this assignment, you need to experiment with computer system measurements. Firstly, pick a platform to study. Any Unix-based system (such as a PC running some version of Linu

Ms word, what is ms words in parts ms words in life?

what is ms words in parts ms words in life?

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