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prime faith Guest
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Posted: Sat Dec 24, 2005 1:01 am Post subject: May somebody answer my questions in the CPU? |
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Hi all
I would like to know the answer of three questions if that possible. It is verey important for me to know the answers, so please help me as you can. The questions are :
1- Describe the basic steps carried out by a CPU for each basic type of instruction.
2- A basic CPU executes one instruction every few machine cycles. Describe one method which modern CPUs have been designed to reach the goal of at least one instruction completed in every cycle.
3- To execute a LOAD operation data must be brought from memory int a register on the chip. Describe these steps and include in your answer how a cache memory would also be accessed.
THANK YOU VERY MUCH IN ADVANCE
BEST WISHES
PRIME FAITH |
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CPUShack

Joined: 16 Jun 2003 Posts: 34259 Location: State of Jefferson, USA
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Posted: Sat Dec 24, 2005 1:37 am Post subject: Re: May somebody answer my questions in the CPU? |
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| prime faith wrote: | Hi all
I would like to know the answer of three questions if that possible. It is verey important for me to know the answers, so please help me as you can. The questions are :
1- Describe the basic steps carried out by a CPU for each basic type of instruction.
Fetch->Decode->Execute
2- A basic CPU executes one instruction every few machine cycles. Describe one method which modern CPUs have been designed to reach the goal of at least one instruction completed in every cycle.
Pipelining and out of order execution
3- To execute a LOAD operation data must be brought from memory int a register on the chip. Describe these steps and include in your answer how a cache memory would also be accessed.
Depends on the CPU, but in a simple CPU where the entire address is given. The address must be put on the bus, the CPU must wait for the data valid signal, and then switch the databus to a that register.
THANK YOU VERY MUCH IN ADVANCE
BEST WISHES
PRIME FAITH |
Why do i get the felling this is someones homework? tis all good though _________________ New for 2025! The CPU Shack has a co-processor!
Visit The CPU Shack of microprocessor history and information. |
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Prime Faith Guest
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Posted: Sat Dec 24, 2005 7:00 pm Post subject: |
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it is not homework, these are questions which i can not find the answer for . and i think they must come in the exam, so plez if anybody knows the answer ,plez reply me.
thanks |
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CPUShack

Joined: 16 Jun 2003 Posts: 34259 Location: State of Jefferson, USA
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PRIME FAITH Guest
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Posted: Sun Dec 25, 2005 1:06 pm Post subject: |
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[/list]
THANK YOU VEERY MUCH , I GOT THE IDEA SO NOW I CAN START MY ANSWER WITH MORE EXPLAINATION
THANKS AGAIN  |
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