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

Cache memory, Cache memory: To reduce the idle time of the CPU and inc...

Cache memory: To reduce the idle time of the CPU and increase the speed of processing, a fast memory can be used. This can be done by using a large size of main memory. But th

CAI, EXPLAIN CAI? AND ITS PITFALLS

EXPLAIN CAI? AND ITS PITFALLS

Soft computing, Defination of Propositionl logic Predicate logic genertic a...

Defination of Propositionl logic Predicate logic genertic algorithm Hybrid system Optimization Fuzzy system rules Fuzzy system application

Explain how cpu responses to an interrupts, Problem 1. Explain the diff...

Problem 1. Explain the different categories of instructions. Explanation of 4 categories 2. Explain the steps to be followed for the addition of floating point numb

Explain the concept of knowledge discovery in database, Question 1 Explain...

Question 1 Explain the concept of knowledge discovery in database Question 2 Discuss the following types of Multidimensional Data Models                    Stars, Snowflakes and

Discuss the usage and benefits of storyboarding, Question 1 Discuss the us...

Question 1 Discuss the usage and benefits of storyboarding Question 2 Explain the different stages of scriptwriting Question 3 Explain the 12 fundamental principle

Types of operating systems, Operating Systems:  An operating system is a se...

Operating Systems:  An operating system is a set of programs that manage computer hardware resources and provide common services for application software.  There are following kind

Optical disk storage and cd - rom, Optical disk storage and cd - ROM: ...

Optical disk storage and cd - ROM: Optical disk storage is relatively new alternative to magnetic storage. Digital data is burnt into the surface of a plastic disk coated with

Port in a computer, what is the need of a port in a computer?

what is the need of a port in a computer?

Java, what is meant by deliverable in strus base applications

what is meant by deliverable in strus base applications

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