What is segment directive, Computer Engineering

Assignment Help:

Q. What is SEGMENT Directive?

Segment directive defines logical segment to which following instructions or data allocations statement belong.  It also provides a segment name to base of that segment.  

Address of each element in a 8086 assembly program should be represented in segment - relative format.  Which means that each address should be expressed in terms of a segment register and an offset from base of segmented addressed by that register. By defining the base of a logical segment, a segment directive makes it potential to set a segment register to address that base and also makes it likely to compute the offset of every element in that segment from a common base.

An 8086 assembly language program comprises logical segments which can be a code segment, stack segment, data segment and an additional segment.

A segment directive denotes to assemble all statements following it in a single source file till an ENDS directive.


Related Discussions:- What is segment directive

Modified digital clock, can you deign the schematic of a modified digital c...

can you deign the schematic of a modified digital clock at the gate as well as the IC level and then construct the circuit, lab spec and industral spec?

Explain about the links and association, Links and Association Links a...

Links and Association Links and associations are the basic means used for establishing relationships among objects and classes of the system. In the next subsection we will di

Name the widely used language processor development tool, Name the widely u...

Name the widely used Language Processor Development Tools ( LPDTs). Widely used Language processor development tools are: Lex - A Lexical Analyzer Generator Lex assi

How to execute an instruction, Execution: Now instruction is ready for exec...

Execution: Now instruction is ready for execution. A different opcode will need different sequence of steps for execution. Hence let's discuss a few illustrations of execution of s

Advantages of mpi, Advantages of MPI: Every process has its own loc...

Advantages of MPI: Every process has its own local variables It can be used on a broader range of problems than OpenMP It runs on either distributed or shared memor

Network for digital methods in the arts and humanities, Network for Digital...

Network for Digital Methods in the Arts and Humanities: Europe has seen a signifi cant investment in the digitisation of its cultural heritage as part of the worldwide establi

Paging, Hardware Support for paging

Hardware Support for paging

Solution of multi-layer ann with sigmoid units, Solution of multi-layer ann...

Solution of multi-layer ann with sigmoid units: Assume here that we input the values 10, 30, 20 with the three input units and from top to bottom. So after then the weighted s

Find the maximum and minimum number-binary, What is the maximum and minimum...

What is the maximum and minimum number in the range of a 7-digit number for each of the following cases? Express all numerical answers in both the original base and its decimal (ba

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