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

What are prefetch instructions, What are prefetch instructions? Prefetc...

What are prefetch instructions? Prefetch instructions are those instructions which can be inserted into a program either by the programmer or by the compiler.

Determine the nand gate, Find out the two inputs when the NAND gate output ...

Find out the two inputs when the NAND gate output will be low. Ans. The output of NAND gate will be low if the two inputs are 11. The Truth Table of NAND gate is shown

Detemine the major building blocks of uml, Detemine the major building bloc...

Detemine the major building blocks of UML UML could be used in visualizing, specifying, constructing and documenting object oriented systems. The major building blocks of UML a

Explain gray code, Explain Gray Code Ans. Gray Code 1.  Extreme...

Explain Gray Code Ans. Gray Code 1.  Extremely useful code. Also termed as reflected code. 2.  All gray code is different from the preceding and succeeding codes thr

Explain pass-1 algorithm of passes used in two-pass-assemble, Explain pass-...

Explain pass-1 algorithm of passes used in two-pass assembler? Pass I: (i) Separate the symbol, operand fields and mnemonic opcode (ii) Make the symbol table (iii)

Grid computing, Grid Computing means applying the resources of a lot of com...

Grid Computing means applying the resources of a lot of computers in a network simultaneously to a one problem for solving a scientific or a technical problem that needs a large nu

How to export a dreamweaver document as xml file, Q. How to export a dreamw...

Q. How to export a dreamweaver document as xml file? Step 1: Choose File -> Open, Step 2: Select document which uses a template (and has editable regions) Step 3: Click O

Handshake control of data transfer - computer architecture, Handshake contr...

Handshake control of data transfer during an input operation:   . Handshake control of data transfer during an output operation o   Interface to CPU and Memory o

What is dots per inch, Q. What is Dots per Inch? DPI (Dots per Inch) is...

Q. What is Dots per Inch? DPI (Dots per Inch) is a measure for actual sharpness of onscreen image. This relies on both the resolution and size of the image. Practical experienc

How branching takes place in instruction pipeline, How branching takes plac...

How branching takes place in Instruction pipeline. Explain with suitable examples

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