Define the public and extrn directives- assembler directives, Computer Engineering

Assignment Help:

Define the PUBLIC and EXTRN directives- Assembler directives

PUBLIC and EXTRN directives are very significant to modular programming. PUBLIC used to declare that labels of data, code, or entire segments are available to other program modules. EXTRN (external) declares that labels are external to modules. Without these statements, modules couldn't be linked together to create a program by using modular programming techniques. They may link, however one module wouldn't be able to communicate to another.

PUBLIC directive is placed in opcode field of an assembly language statement to define a label as public so that label can be used by other modules.

 


Related Discussions:- Define the public and extrn directives- assembler directives

Storing a word in memory - computer architecture, Storing a word in Memory:...

Storing a word in Memory: That is similar process with fetching a word from memory. The required address is loaded into the MAR After that data to be written are lo

How semaphores implement mutual exclusion, How semaphores implement mutual ...

How semaphores implement mutual exclusion? Mutual-exclusion implementation along with semaphores: Assume that there are n-processes and they share a semaphore, mutex (stan

What is said to be side effect, What is said to be side effect? When a ...

What is said to be side effect? When a location other than one explicitly named in an instruction as a destination operand is affected, the instruction is said to have a side e

Name at least six file extensions of microsoft access, Some of the file ext...

Some of the file extensions present in MS Access are ? Access blank project template .adn ? Access database .accdb ? Access Workgroup .mdw ? Access project .adp ? A

Design issues, Design issues:  To complete the maximum processor utilizatio...

Design issues:  To complete the maximum processor utilization in a multithreaded architecture, the following design issues have to be addressed: Context Switching time: S

Address translation with dynamic partition, Address translation with dynami...

Address translation with dynamic partition : Given figure shows the address translation process with dynamic partitioning, where the processor provides hardware support for

Explain physical characteristics of magnetic disk, Q. Explain Physical Char...

Q. Explain Physical Characteristics of magnetic disk? Figure below lists main features that differentiate among different types of magnetic disks. First head may either be fixe

Which device consume minimum power, Which device consume minimum power ? ...

Which device consume minimum power ? Ans. Minimum power consume by CMOS as in its one p-MOS and one n-MOS transistors are connected in complimentary mode, so one device is ON a

What are the advantages of hierarchical networks, What are the advantages o...

What are the advantages of Hierarchical Networks? Hierarchical networks are able of handling heavy traffic where needed, and at similar time use minimal number of trunk groups

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