Define implementation of segmentation with an example, Operating System

Assignment Help:

IMPLEMENTATION OF SEGMENTATION WITH AN EXAMPLE

Segmentation is a memory-management scheme that represents the user view of memory. A logical address space is the collection of segments. Every segment has a name and a length. The addresses specify both the offset and the segment name within the segment. The user thus specifies each address by two quantities: an offset and a segment name. For the simplicity of execution, the segments are numbered and are referred to by a segment number, relatively than by a segment name. Therefore, the logical address consists of a two tuple segment-number offset   

Execution is defined to map two-dimensional user-defined addresses into one-dimensional physical addresses. This mapping is distressed by segment table. Every entry in the segment table has a segment limit and a segment base. The segment base holds the starting address where the segment resides in memory, while the segment limit specifies the length of the segment.

A logical address consists of two parts an offset and a segment number, s, into that segment d. The segment number is utilized as an index to the table. The offset d of the logical address should be between 0 and the segment limit. The segment table is basically an array of base-limit register pairs.

 

1357_Implementation of  SEGMENTATION.png


Related Discussions:- Define implementation of segmentation with an example

Example of semaphore, For example, by initializing a semaphore to 0, thread...

For example, by initializing a semaphore to 0, threads can wait for an event to occur, and impose an ordering constraint, similar to a monitor using condition variables, but with m

What is the cache coherency problem, Question: (a) Modern processors op...

Question: (a) Modern processors operate in one of two modes: one for the operating system and one for applications. What is the purpose of having these two modes? What are

Explain the resource ownership by platform, Explain the Resource Ownership ...

Explain the Resource Ownership by Platform Ownership of data items may further be complicated by concepts defined in certain operating systems. Each operating system defines "p

Drawbacks of least-recently used algorithm, The question of fairness, regar...

The question of fairness, regarding page eviction, is a hard one. How do we decide what is fair? Many operating systems use global LRU, where pages from all processes are managed t

Explain the threadswitch function used in the netware, Explain the ThreadSw...

Explain the ThreadSwitch function used in the netware Since NetWare 3 and 4 are nonpreemptive environments, it may be necessary for the application developer to explicitly reli

Explain the reasons why an organisation fail to plan, Problem 1: (a) Wh...

Problem 1: (a) What are the likely benefits which an organisation may derive from the planning process? (b) Explain the main reasons why an organisation may fail to plan.

Define the server communications module or scm, Define the Server Communica...

Define the Server Communications Module or SCM The Server Communications Module (SCM) performs many necessary functions. The SCM responsible for establishing, maintaining, and

Can you give me assistance on my operating system assignment, Can you give ...

Can you give me assistance on my operating system assignment?

How memory utilization factor shall be computed, How Memory utilization fac...

How Memory utilization factor shall be computed  Memory utilization factor shall be defined as Memory in use/total memory connected

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