What are program-invisible registers, Computer Engineering

Assignment Help:

What are program-invisible registers?

Ans: the local and global descriptor tables are found in the memory system. To access and specify the address of these tables, program invisible registers used. Program invisible registers aren't directly addressed by software so they are given a name. GDTR (global descriptor table register) and IDTR (interrupt descriptor table register) comprises the base addresses of descriptor table and its limit. Limit of each descriptor table is 16 bits as maximum table length is 64 Kbytes. When protected mode operation is desired, address of the global descriptor table and its limit are loaded into GDTR.

 


Related Discussions:- What are program-invisible registers

Difference between search and search all, SEARCH is a sequential search fro...

SEARCH is a sequential search from the starting of the table. SEARCH ALL is a binary search, continually dividing the table in two halves until a match is found. SEARCH ALL is more

Cluster computing, The concept of clustering is definite as the use of mult...

The concept of clustering is definite as the use of multiple computers, typically PCs or multiple storage devices, UNIX workstations, and their interconnections, to form what appea

Explain about hexadecimal numbers system, Q. Explain about Hexadecimal Numb...

Q. Explain about Hexadecimal Numbers system? Hexadecimal system has 16 digits that are represented as 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F. A number (F2) H is equivalent to

Explain all the categories of common control switching, Explain all the cat...

Explain all the categories that are served by Common Control switching. Common Control Switching System: It is a functional block diagram of a common control switching system i

What search method would be most appropriate and why, (a) Describe fully in...

(a) Describe fully in your own words the following terms: (i) Turing Test (ii) Agent (iii) Utility-based agent (b) A Mars rover has to leave the lander, collect rock sample

What is known as multiphase clocking, What is known as multiphase clocking?...

What is known as multiphase clocking? When edge-triggered flip flops are not used, two or more clock signals may be required to guarantee proper transfer of data. This is calle

How do you debug a loadrunner script, VuGen have two options to help debug ...

VuGen have two options to help debug Vuser scripts-the Run Step by Step command and breakpoints. The Debug settings in the Options dialog box permit us to verify the extent of the

Explain the term instruction cycle, Instruction Cycle The instruction c...

Instruction Cycle The instruction cycle consists of a series of steps required for the execution of an Instruction in a program. A distinctive instruction in a program is compo

Explain the term- wireless technologyand broadband, Explain the term- Wirel...

Explain the term- Wireless Technologyand Broadband Wireless Technology (WiFi) and Broadband Most areas in the world now provide broadband instead of dial up for connectin

De morgan''s laws - artificial intelligence, De Morgan's Laws Continuin...

De Morgan's Laws Continuing with the relationship between  ∧  and  ∨ , we can also use De Morgan's Law to rearrange sentences involving negation in conjunction with these conne

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