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Computer Organization Questions

By neon5 ·
Hi, I'm new here. I not sure exactly where to post this. So I apologize if this post is in the wrong section. I was informed by a friend that a majority of you guys are very clued about computer hardware related issues. I'm doing a Computer Science degree and I have an assignment due. Would anybody be able with some of these questions I'm having problems with :


4.If you were designing a new computer with a new instruction set, what are the tradeoffs between code size and CPU complexity that would influence your choice of whether to use 0-operand, 1-operand, 2-operand or even 3-operand instructions. Use code fragments for computing X=(A/B-C)/(A+E*F) to illustrate your points.[15]

5.A computer designer decides to design a new type of CPU using the idea of Very Long Instruction Words. Instead of the current trend towards regular, reduced instruction set sizes, the idea is to have a small number of very complex instructions that can carry out a lot of operations in one go. The proposed instruction design has up to three operands which can be memory or register, and has two opcodes, which can be any combination of the logical or arithmetic instructions and/or/add/sub/div/mul, and a further operand which is the address of the next instruction to be fetched and executed.

i.Assuming a 32bit byte addressable memory architecture, how many bits might the typical instruction take?[7]
ii.What are the problems with this approach, and why is RISC preferred nowadays? [

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by Toivo Talikka In reply to Computer Organization Que ...

Frankly, you are in the wrong place, mate. You would benefit from doing your own research. That is the way to learn something. The answers could even be found in your textbooks...

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by neon5 In reply to Computer Organization Que ...

Well the answers aren't in the textbook and we have a sucky lecturer. I don't have 1 month to research all the stuff online anyway. But you are right, researching it would be the only way to learn.

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by TheChas In reply to Computer Organization Que ...

Sure, the answers are not in your textbook. It's not high school anymore.

Are the concepts covered in the textbooks?

What about the resources listed in the course syllabus?

Reading the questions over, the goal of the assignment is to show you why a RISC architecture is more efficient than one using complex instruction sets.

Read your text, and see what is there.

If there is some specific issue that you do not comprehend, we are willing to help.

Chas

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by HAL 9000 Moderator In reply to Computer Organization Que ...

Well you are not even asking a question about current hardware but the basic design of the stuff and the internal coding of instruction sets for a CPU that are embedded into the actual CPU.

As this is not every day stuff buy more along the basic design there must be something in your text books to cover this even if the Lecturer is a complete *** and I've run across my fair share of those types. When I did Electronic Engineering it covered computers as there where no Computer Science Courses way back then and we didn't even cover this stuff not even when I did my Post Grad studies. But then again back then they used Vacuum Tubes and took up whole buildings for a computer well maybe not quite in the days of the vacuum tube or the punch cards when I entered the work force as they where by then old hat and no longer used on the current generation of hardware.

If the stuff isn't in your text books which it should be there must be required/recommended reading material along with the Text Books that covers this stuff no Uni or College just gives you an assignment to do without the ability to achieve the desired results. If you would like to read the stuff and then come back with a more specific question on something that you don't quite understand I'll do my best to help you out but as things stand now the question is way to general and I could spend the next 12 months discussing CPU design and maybe not even cover what you want to know. I would start off in the Education establishments Library and work from there as there must be something there that covers this which really is CPU design.

Col

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by mjd420nova In reply to Computer Organization Que ...

I wish I had the time and the equipment to do the
research it would take to find the answers you
seek. It would take an older development bench/trainer processor board to effectivly
research this.

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by zeidlers In reply to Computer Organization Que ...

well, i hope you learnt that you should DO YOUR OWN ASSIGNMENT! As i am in your class and it really didnt take 1 month to get the answers. So get off your lazy *** and dont blame your problems on the lecturer.Prick!

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