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

Digital logic design, Find the complement of the following decimal 7

Find the complement of the following decimal 7

C, programm for fibonacci series

programm for fibonacci series

Difference between an html and an xhtml page, QUESTION (a) Define four ...

QUESTION (a) Define four special target names use with the TARGET attribute (b) Explain the main difference between an HTML and an XHTML page (c) Give two merits and two

Define server clustering, Question 1 Discuss the impacts of disaster faced...

Question 1 Discuss the impacts of disaster faced by the organization Question 2 Explains the steps involved in disaster recovery planning Question 3 What do you mean by

Write this ARM assemble language program, Programming Assignment CS252 Spri...

Programming Assignment CS252 Spring 2014 Write an ARM assembly language subroutine that performs according to the following specification (Caesar cypher). Given a mixed case al

Example of autonomous rational agents, Example of autonomous rational agent...

Example of autonomous rational agents-Artificial intelligence The procedure of waste water treatment After the level of pollutants in waste water is find out,  following 5

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.

Register array, #queA register is a memory location surrounded by the CPU i...

#queA register is a memory location surrounded by the CPU itself, designed to be rapidly accessed for purposes of fast data retrieval. Processors normally hold a register array, wh

Types of software interface, different types of software interfaces which f...

different types of software interfaces which falls in different categories

Widening web, The Widening Web The idea, the whole world is agog...

The Widening Web The idea, the whole world is agog now had accidental origins. Here is how it all began. In early 1969, the U.S. Defence department financed a network fo

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