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help2002

This forum is provided to promote discussion amongst students enrolled in CITS2002 Systems Programming.
Please consider offering answers and suggestions to help other students! And if you fix a problem by following a suggestion here, it would be great if other interested students could see a short "Great, fixed it!"  followup message.
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 UWA week 43 (2nd semester, study break) ↓
SVG not supported 7:48pm Fri 25th Oct, ANONYMOUS

Thank you for your reply, I'd like to ask why there'd be 2 14 secondary page tables instead of the size of secondary page table being 2 14. As I understand, primary page table will hold the address to a single secondary page table. Perhaps I'm mistak...


SVG not supported 2:04pm Fri 25th Oct, ANONYMOUS

ANONYMOUS wrote Answered here https secure.csse.uwa.edu.au run help2002?p np opt U753 hl segmentation


SVG not supported 10:21pm Thu 24th Oct, ANONYMOUS

Hello, I am reposting my question as it seems my question has been missed. Could someone please clarify or help with my understanding please? The question is below Hi all I'm currently on Past Exam 2021 Question 5. I'm wondering if for """ A computer ...


SVG not supported 10:19pm Thu 24th Oct, ANONYMOUS

Hello, I am reposting my question as it seems my question has been missed. Could someone please clarify or help with my understanding please? The question is below Hi all I'm currently on Past Exam 2021 Question 5. I'm wondering if for """ A computer ...


SVG not supported 10:54pm Wed 23rd Oct, ANONYMOUS

Hi all I'm currently on Past Exam 2021 Question 5. I'm wondering if for """ A computer system employing 32-bit addresses implements virtual memory using a two-level page table. The right-most 10 bits of each virtual address are used to specify the requ...


SVG not supported 10:27pm Wed 23rd Oct, ANONYMOUS

ANONYMOUS wrote From my understanding, file descriptors are low-level system calls USUALLY handled by the operating system that returns a single int which represents the currently opened file. Remember that C is a program that is used to contact dir...


SVG not supported 5:11pm Tue 22nd Oct, ANONYMOUS

ANONYMOUS wrote That is correct


SVG not supported 4:54pm Tue 22nd Oct, ANONYMOUS

ANONYMOUS wrote Lecture 15, last 3 pages


SVG not supported 4:53pm Tue 22nd Oct, ANONYMOUS

ANONYMOUS wrote Email Amitava "ami a a d t a u a e u a " a e l w l v l s s e a l S A L a d e y t e o e a i g s s e h t r t r s a s n l n h c e r s n s t e c r e t y o e e i e e e b r t a s a p o r m t a s u e o c n a t d r...


SVG not supported 4:38pm Tue 22nd Oct, ANONYMOUS

It is the case only one needs to submit, please tell your partner to contact the email ASAP.


SVG not supported 3:36pm Tue 22nd Oct, ANONYMOUS

ANONYMOUS wrote I'd assume in questions like those where it can be either or. It is important to state our assumption when the question is ambiguous. Amitava doesn't want specific correct answers where it is as precise as possible but rather want us ...


SVG not supported 3:34pm Tue 22nd Oct, ANONYMOUS

As stated on StudentConenct "1 x double-sided A4 page of notes - handwritten only" No Code WRITING will be asked but coding questions are still asked where code is given where we need to debug explain. Similar to above, shouldn't require anymore than ...


SVG not supported 3:30pm Tue 22nd Oct, ANONYMOUS

ANONYMOUS wrote "Involving code" means the code will be given and we'll have to either debug explain the code given to us. NO CODE WRITING is necessary. (Look at literally any last 4 lectures and you can find Amitava stating this over and over) That i...


 UWA week 42 (2nd semester, week 12) ↓
SVG not supported 7:35pm Wed 16th Oct, ANONYMOUS

It doesn't matter. As long as the point comes across, write it in your assumptions since most of these are just formatting. As long as it is clear what is what, you'll be fine


SVG not supported 7:33pm Wed 16th Oct, ANONYMOUS

Read your emails.


SVG not supported 1:37am Wed 16th Oct, ANONYMOUS

ANONYMOUS wrote It is incorrect, the first 1 will be loaded at time 4 (for both ignore and not) while the second 1 will be loaded at time 7 if you ignore and 9 if you don't.


SVG not supported 1:34am Wed 16th Oct, ANONYMOUS

Answered here https secure.csse.uwa.edu.au run help2002?p np opt U653


SVG not supported 6:21pm Tue 15th Oct, ANONYMOUS

ANONYMOUS wrote These are correct. C Clarification for if anyone else looks at this. OP has decided to ignore calls if all has been loaded. It would look different if you chose to load it again.


SVG not supported 11:09pm Mon 14th Oct, ANONYMOUS

Adding to this to show how it'd look if you chose to ignore it instead of pushing 99, 1, 2, 3 99, 99, 4, 5 99, 99, 6, 7 99, 0, 99, 99 3,1,10; 3,1,10; 0,1,1; 0,1,1; 0,2,2; 0,2,2; 0,3,3; 0,3,3; 1,2,13; 1,2,13; 1,3,14; 1,3,14; 2,2,11; 2,2,11; 2,3,12; 2,3,12...


SVG not supported 3:11pm Mon 14th Oct, ANONYMOUS

You can write is as an assumption that it will always be named that. This is a simple project so I doubt they'd check it. But a good practice is to not hard code it but instead let it work with any names. Hope this helps


SVG not supported 3:10pm Mon 14th Oct, ANONYMOUS

ANONYMOUS wrote As Amitava said in his clarification email "(1) What happens if all the pages of a process are already in memory and the process id appears again in the input. You can handle this one of two ways, either you can ignore it, or 'bring' ...


SVG not supported 3:07pm Mon 14th Oct, ANONYMOUS

I have emailed Amitava this and he says it doesn't matter how you put it (99, 99, 0 or Empty, Empty, 0 or Empty, Empty, Empty) just put it under your assumptions as comments at the very top of your code His exact response is "Yes, you can choose your ...


 UWA week 41 (2nd semester, week 11) ↓
SVG not supported 4:00pm Sat 12th Oct, ANONYMOUS

I don't think it matters, as long as it is obvious that it is page table RAM content. Also you should clarify for your project, you chose to load the process to RAM again instead of ignoring it. Below is how it'll look like if it was ignored in.txt 0...


SVG not supported 8:24pm Thu 10th Oct, ANONYMOUS

Amitava has already mentioned multiple times during multiple lectures that there will be no code writing questions. At most he will give a code snipet and we will have to explain it. Please watch his lectures, it is actually useful


SVG not supported 9:23pm Tue 8th Oct, ANONYMOUS

I see So when we remove it from RAM we just remove the pointer to it in the RAM while the pointer in the Virtual Memory never changes? And yes, I was asking if they were separate arrays. Thanks for the help Joshua


SVG not supported 3:53pm Tue 8th Oct, ANONYMOUS

Hi there Just a few questions to clarify if I'm understanding correctly 1. From an earlier forum question it is stated that https secure.csse.uwa.edu.au run help2002?p np opt U557 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, ...


 UWA week 40 (2nd semester, week 10) ↓
SVG not supported 7:50pm Mon 30th Sep, ANONYMOUS

Hi there Just wanted to make sure what the method of submitting the project will be for the second project. If it is done in groups of 2, will only one of the members need to submit it ? Thanks


 UWA week 38 (2nd semester, week 8) ↓
SVG not supported 11:44pm Wed 18th Sep, ANONYMOUS

Hi all. I just wanted to make sure, if we're doing the project with a partner do both of us need to submit or only one of us? Thanks


 UWA week 35 (2nd semester, week 6) ↓
SVG not supported 4:25pm Wed 28th Aug, ANONYMOUS

In one of the other help questions it was stated that HI am a little confused as to why it'll be arg0, arg1, ... as in the project "The goal of this project is to implement a C11 program, named runml, which accepts a single command-line argument provi...


 UWA week 34 (2nd semester, week 5) ↓
SVG not supported 2:01pm Wed 21st Aug, ANONYMOUS

Not sure if I am correct but the reason why B (int x 2 10;;) is because it would take the second semicolon as an empty statement so it'll be read as int x 2 10; ; which would not affect the program itself but will just look weird and isn't good ...


SVG not supported 1:59pm Wed 21st Aug, ANONYMOUS

Not OP but would it be because it depends on the bits (i.e. 32-bit or 64-bit) where 32-bit is 4 bytes per integer but something like 16-bit will give 2 bits so it'll be value of 200. That's why the answer is B. Because the value byte of each object i...


 UWA week 33 (2nd semester, week 4) ↓
SVG not supported 5:11pm Mon 12th Aug, ANONYMOUS

I just watched the lecture today and heard the mention of mid-sem exam with 20MCQ. I'd just like to ask what topics it will cover. Will it only be lectures or will it include workshops and labs (I saw one of the other help questions where it was ment...


 UWA week 31 (2nd semester, week 2) ↓
SVG not supported 5:04pm Fri 2nd Aug, ANONYMOUS

Hi I was watching the workshop recording for today and about the 9minute mark, the audio cut off. I was wondering if anyone else is experiencing this and if there is any backup recording for this? Thanks

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