Maurice Tutor

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Expertise:
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Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
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Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

Experience

  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 05 May 2018 My Price 8.00

segmented memory

9.    A segmented memory has paged segments. Each virtual address has a 2-bit segment number, a 2-bit page number, and an 11-bit offset within the page. The main memory contains 32 KB, divided into 2-KB pages. Each segment is either read-only, read/ex- ecute, read/write, or read/write/execute. The page tables and protection are as follows:

 

 

 

 

 

Segment 0

Segment 1

Segment 2

Segment 3

Read only

Read/execute

Read/write/execute

Read/write

Virtual page

Page frame

Virtual page

Page frame

 

Virtual page

Page frame

0

9

0

On disk

Page table

0

14

1

3

1

0

not in

1

1

2

On disk

2

15

main

2

6

3

12

3

8

memory

3

On disk

 

 

 

For each of the following accesses to virtual memory, tell what physical address is computed.  If a fault occurs, tell which kind.

 

 

 

Access

1. fetch data

Segment

0

Page

1

Offset within page

1

2. fetch data

1

1

10

3. fetch data

3

3

2047

4. store data

0

1

4

5. store data

3

1

2

6. store data

3

0

14

7. branch to it

1

3

100

8. fetch data

0

2

50

9. fetch data

2

0

5

10. branch to it

3

0

  

 

Answers

Maurice Tutor
(5)
Status NEW Posted 05 May 2018 06:05 PM My Price 8.00

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