Comparison instructions , Basic Computer Science

Assignment Help:
They are used to evaluate operators, and they have an effect on the content of the flags.
CMP
CMPS (CMPSB) (CMPSW)
CMP INSTRUCTION
Idea: To measure up to the operators.
Syntax:
CMP destiny, source
This instruction subtracts the source operator from the destiny operator but with no this one storing the outcome of the operation, and it only concerns the state of the flags.

CMPS (CMPSB) (CMPSW) INSTRUCTION
Idea: To compare sequences of a byte or a word.
Syntax:
CMP destiny, source
With this instruction the series of source characters is subtracted from the destiny chain.
DI is used as an index for the additional segment of the source chain, and SI as an index of the destiny series.
It only affects the content of the flags and DI as well as SI is incremented.

Related Discussions:- Comparison instructions

Indexing and abstracting databases, Indexing and Abstracting Databases: ...

Indexing and Abstracting Databases: A study of growth of indexing and abstracting services over the years would show that during the past two centuries, these services have be

Examples of online databases, Examples of Online Databases: The adopti...

Examples of Online Databases: The adoption of modern technology has resulted in the proliferation of machine readable databases. The National Library of Medicine (USA) designe

Exploitation of parallelism, Exploitation of Parallelism Similar calcul...

Exploitation of Parallelism Similar calculations have of course been a subject of dynamic research in computer technology for the past several years. Whereas parallelism within

Application packages, APPLICATION PACKAGES : There are two options. You ca...

APPLICATION PACKAGES : There are two options. You can either write your own program or buy an applications package, i.e. a proprietary program, 'off-the-shelf. The former option i

Explanation of characteristics of computers, Problem 1. Briefly explain...

Problem 1. Briefly explain on the characteristics of computers Explanation of characteristics of computers 2. Write a note on Cache Memory Note on Cache Memor

Explain the important features of creational patterns, Question 1 Explain ...

Question 1 Explain the role of object oriented designers in developing a software system Question 2 What are the four essential elements of design patterns? Explain Question 3

Data output, DATA OUTPUT : Whatever, data or information that you feed int...

DATA OUTPUT : Whatever, data or information that you feed into a computer will be the data output from a computer system and will be a data file sent from the computer to a periph

History , when was the first computer made

when was the first computer made

Write Your Message!

Captcha
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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd