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

Interpreters, Use and overview? Pure and impure interpreter?

Use and overview? Pure and impure interpreter?

Basic server model, Suppose we want to program a Web server; we could easil...

Suppose we want to program a Web server; we could easily do so without using concurrency, as follows: while(true) wait connection read from socket and parse url look up url cont

Define busy waiting and spinlock, Define busy waiting and spinlock. Whe...

Define busy waiting and spinlock. When a process is in its significant section, any other process that tries to enter its critical section must loop continuously in the entry c

What is critical section?, What is critical section? Every process has ...

What is critical section? Every process has a segment code called the critical section, in which the process may be updating tables, changing variables, writing file and etc. W

Explain tree structured directories structure, Tree structured directories:...

Tree structured directories: This is the main common directory structure. The tree has a root directory as well as every file in the system has a unique path name. A directory

Define instance, Define Instance. An instance is an administrative unit...

Define Instance. An instance is an administrative unit in which components of R/3 systems giving one or more services are grouped together.  The services offered by a case are

Starvation, what do you mean by starvation?explain in detail

what do you mean by starvation?explain in detail

Is disk scheduling useful in a single-user environment, Is disk scheduling,...

Is disk scheduling, other than FCFS scheduling, useful in a single-user environment? Explain your answer. In a single-user environment, the I/O queue usually is blank. Requests

Differences between symmetric and asymmetric multiprocessing, Describe the ...

Describe the differences between symmetric and asymmetric multiprocessing. What are three advantages and one disadvantage of multiprocessor systems? Symmetric multiprocessing t

Determine a parser which is a variant of top-down parsing, Determine a pars...

Determine a parser which is a variant of top-down parsing without backtracking Recursive Descend parser is a variant of top-down parsing without backtracking.

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