Determine the purpose of GDTR, Computer Engineering

Assignment Help:

Elucidate the purpose of GDTR. If the microprocessor sends linear address 00200000H to paging mechanism, which paging directory entry and which page table entry is accessed?

GDTR (global descriptor table register) and IDTR (interrupt descriptor table register) comprise 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 the protected mode operation is desired, address of the global descriptor table and its limit are loaded into the GDTR.

For linear address 00000000H - 003FFFFFH, first entry of the page directory is accessed. Every page directory entry signifies or repages a 4-Mbyte section of the memory system. Contents of the page directory select a page table which is indexed by the next 10 bits of the linear address. This means that address 00000000H - 00000FFFH selects page directory entry 0 and page table entry 0.

 


Related Discussions:- Determine the purpose of GDTR

Define congestion and grade of service, Define congestion and grade of serv...

Define congestion and grade of service. Congestion : This is uneconomic to give sufficient equipment to carry all the traffic which could possibly be offered to a telec

Explain briefly the function of layers, Explain briefly the function of dif...

Explain briefly the function of different layers which are covered under end to end layer connectivity. Different layer are as follows: 1. Transport Layer:  This is res

Explain characteristics of program translation model, Explain characteristi...

Explain characteristics of program translation model. The program translation model characteristics are: A program should be translated before this can be executed.

Convert the decimal number 82.67 into hexadecimal , Conversion of the decim...

Conversion of the decimal number 82.67 into Hexadecimal ? Ans. (1010010.10101011) 2 is the binary equivalent of decimal number 82.67. Now convert each 4-bit binary into an equ

Write C++ for following question., We are planning an orienteering game. Th...

We are planning an orienteering game. The aim of this game is to arrive at the goal (G) from the start (S) with the shortest distance. However, the players have to pass all the che

Why is xml such an important development, It takes away two constraints whi...

It takes away two constraints which were holding back Web developments: 1. Dependence on a one, inflexible document type (HTML) which was being much abused for tasks it was neve

Define smtp, SMTP Simple Mail Transfer Protocol, a protocol for sending...

SMTP Simple Mail Transfer Protocol, a protocol for sending e-mail messages among servers. Most e-mail systems that send mail over the Internet use SMTP to send messages from si

Define apple mobileme calendar, Define Apple MobileMe Calendar The Mobi...

Define Apple MobileMe Calendar The MobileMe Calendar is a web-based calendar that can be accessed from any computer linked to the Internet, Mac or Windows. What makes it more u

Write short note on quantization, Write short note on Quantization. Qua...

Write short note on Quantization. Quantization: This is the first step in PCM. The whole amplitude range of the modulating signal is divided in a number of standard levels term

What will occur when contents of register are shifter left, What will occur...

What will occur when contents of register are shifter left, right? This is well known that into left shift all bits will be shifted left and LSB will be appended along with 0 a

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