help2002

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help2002

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UWA week 41 (2nd semester, week 11) ↓

2nd project Project 2 - Input and Initialization questions (all 4)

4:21pm Tue 8th Oct, Joshua N.

ANONYMOUS wrote:

> Hi there! Just a few questions to clarify if I'm understanding correctly > > 1. > >From an earlier forum question it is stated that > [help2002]⬈ > in.txt > 0 1 2 3 0 1 2 3 0 1 2 3 > > out.txt > 99, 4, 0, 99 > 99, 5, 1, 99 > 99, 6, 2, 99 > 99, 7, 3, 99 > RAM Contents: > 0,2,8; 0,2,8; 1,2,9; 1,2,9; 2,2,10; 2,2,10; 3,2,11; 3,2,11; 0,1,4; 0,1,4; 1,1,5; 1,1,5; 2,1,6; 2,1,6; 3,1,7; 3,1,7; > > is the correct answer, the question is if we add another 0 after like (0 1 2 3 0 1 2 3 0 1 2 3 0) > will it then load the first page of process 0 (4, 99, 0, 99) or last page of process 0 (99, 99, 0, 4)?

Answered here: [help2002]⬈

> 2. > For initialization, it is stated RAM has 16 pointers, Virtual Memory (DISK) has 32 pointers, are they disjoint or are they union together with RAM being with the Virtual Memory

Their contents are not disjoint (e.g. for the example you gave, after the first-time step the pointer for page 0, process 0 will be in both RAM and Virtual Memory), but they are two separate data structures if that is what you're asking (two separate arrays).

> Thanks so much for your help and good luck on project 2 everyone!

Thanks.