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

Computer, identify application software from the list? ms excel linux inter...

identify application software from the list? ms excel linux internet explorer adobe photshop sound card driver window disk manger adobe dream weaver windows file explorer

Spreadsheet to provide a business solution, Gareth's Gardens is a small fir...

Gareth's Gardens is a small firm that specialises in planning and laying new gardens.  A particularly popular garden plan consists of a patio and lawn, together with a circular pon

Briefly explain the shutter speed, Question 1 Write a note on transition, ...

Question 1 Write a note on transition, transition types & Features Question 2 Describe the different types of lens used in film shooting Question 3 Briefly explain

Instruction pipeline, How branching takes place in Instruction pipeline. Ex...

How branching takes place in Instruction pipeline. Explain with suitable examples.

Write a note on modems, Question 1 Write a note on modems Question ...

Question 1 Write a note on modems Question 2 What are the Safe Chatting Rules Question 3 Explain three basic kinds of hypertext links Question 4 Write a no

Education and society, mention the aims of education in present scenario

mention the aims of education in present scenario

Tech ed, can you help me convert binary into decimals?

can you help me convert binary into decimals?

Write short notes on joint fiction reserve, QUESTION (i) Write short no...

QUESTION (i) Write short notes on each of the following: a) Shelf reading b) Joint Fiction Reserve c) London and South-Eastern Library Region d) Document access

Distinguish between buffering and caching, QUESTION (a) Describe what y...

QUESTION (a) Describe what you understand by (i) "openness" and (ii) "Scalability" of a distributed system (b)What is the role of middleware in a distributed system? (c)

C, board coloring

board coloring

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