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

What is the purpose of zero (z) flag and carry (c) flag, What is the purpos...

What is the purpose of zero (z) flag and carry (c) flag? Carry flag holds the carry after addition or the borrow after subtraction. Carry flag also indicates error conditions,

How can one decide this decimal position, Q. How can one decide this decima...

Q. How can one decide this decimal position? Decimal position can be signified by a position between flip-flops (storage cells in computer). However how can one decide this dec

Explain the storage class auto, Explain The Storage Class auto The Stor...

Explain The Storage Class auto The Storage Class auto : Variables declared within function bodies are automatic by default. Thus, automatic is the most common of the four stora

What is data hazard, What is data hazard? Any condition that causes the...

What is data hazard? Any condition that causes the pipeline to stall is known as a hazard. A data hazard is any condition in which either the source or destination operands of

What does the term entrepreneurship mean, 1) What does the term entrepreneu...

1) What does the term entrepreneurship mean to you?  What are some basic characteristics of entrepreneurs? 2) What is e-commerce?  Why are the Internet economy and e-commerce he

Intelligent systems assignment, This logbook should be used to record decis...

This logbook should be used to record decisions, ideas, work done by your group on this assignment. Each group should keep one logbook, which must be submitted along with your sour

Why wap gateways are used, Why WAP gateways are used? The Wireless Appl...

Why WAP gateways are used? The Wireless Application Protocol Gateway is a very unique product giving semi -automatic redirection of HTML documents to WAP compatible mobile phon

C++, find the minimum total number of shelves including the loading process...

find the minimum total number of shelves including the loading process

Sap system-wide security settings, You are required to review the system-wi...

You are required to review the system-wide security settings on our SAP system. The data file RSPARAM contains an extract from the client's system. You are to produce a report (

Explain Not recently used page replacement algorithm, Not Recently Used Pag...

Not Recently Used Page Replacement Algorithm The not recently used abbreviated as NRU page replacement algorithm works on the subsequent principle: while a page is referenced,

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