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

Probability, 2. Mike sells on the average 15 newspapers per week (Monday – ...

2. Mike sells on the average 15 newspapers per week (Monday – Friday). Find the probability that 2.1 In a given week he will sell all the newspapers [7] 2.2 In a given day he w

Deadlocks, What is methods For handling Deadlocks?

What is methods For handling Deadlocks?

Function, function of arithmetic logic unit

function of arithmetic logic unit

Discuss the objectives of query processing, Question 1 Differentiate betwe...

Question 1 Differentiate between PL/SQL functions and procedures Question 2 Draw the diagram of logical structure of oracle database and explain it in brief Question 3 D

Cryptography, Question 1 Consider the one-time pad encryption scheme to e...

Question 1 Consider the one-time pad encryption scheme to encrypt a 1-bit message m, and assume m is chosen with uniform distribution from message space M={0,1}. Let E1 be the ev

Briefly explain main parts of the camera, Question 1 Briefly explain main ...

Question 1 Briefly explain main parts of the Camera Question 2 Write a note on: Ripple Edit Tool, Rate Stretch Tool & Track Selection Tool Question 3 What is Pixel

Number system, convert the following in to binary 108

convert the following in to binary 108

Visual Basic 2012, Can someone help me write a code for force = mass * acce...

Can someone help me write a code for force = mass * acceleration.

Explain Process States and Process Control Block (PCB), Process States Thr...

Process States Throughout the lifespan of a process, its execution position may be in one of four states: (linked with each state is generally a queue on which the process resides)

Scope of operation research , scope of operation research in science?

scope of operation research in science?

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