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

Functions for mpi environment, Q. Functions for MPI Environment? Int M...

Q. Functions for MPI Environment? Int MPI_Finalize (void) It ends the MPI environment. Any MPI function cannot be called after MPI_Finalize. Each MPI process belongs to on

Ifstream on the input file, Write a main function that opens an ifstream on...

Write a main function that opens an ifstream on the input file, "person.dat".  If the stream cannot be  opened, output an error message and exit.       The file format is as foll

Coupling and cohesion, Coupling and cohesion can be shown using a:- Dep...

Coupling and cohesion can be shown using a:- Dependence matrix

What do conditional assignments get inferred into, What do conditional assi...

What do conditional assignments get inferred into? Conditionals  in  a  continuous  assignment  are  specified  through  the  "?:"  operator.  Conditionals  get inferred into a

What is line option explicit, What is line option explicit Line explici...

What is line option explicit Line explicit function makes the compiler to recognize all the variables which are not particular by the dim statement. This command significantly

Name at least six file extensions of microsoft access, Some of the file ext...

Some of the file extensions present in MS Access are ? Access blank project template .adn ? Access database .accdb ? Access Workgroup .mdw ? Access project .adp ? A

Rules for minimisation using k maps, 1) All squares containing a 1 must be ...

1) All squares containing a 1 must be grouped. 2) The largest possible groups must be formed. 3) Groups can overlap if this allows larger groups to be formed. 4) Groups mu

Where engaged tone is generated, E ngaged tone is generated in the: (...

E ngaged tone is generated in the: (A)  Telephone instrument of calling subscriber (B)  Telephone instrument of called subscriber (C)  Exchange (D)  Repeater

When a network uses a star topology, A Network uses a star topology if? ...

A Network uses a star topology if? A Network utilizes a star topology if all computers attach to a single central point.

Identifying stakeholders, I have chosen an imaginary example to illustrate...

I have chosen an imaginary example to illustrate the different stakeholder categories. At Home sells a selection of consumer products, currently listed in a paper catalogue, whi

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