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? [8]
