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Different CPU designs use many different pipelining models with varying numbers of stages. The more stages, the more powerful your CPU is likely to be, but it is also much more complicated to design. Typical stages go like this:
1. Calculate next execution address (often just incrementing the address pointer, and not needing a separate pipeline stage)
2. Fetch instruction
3. Decode instruction
4. Calculate operand address(es)
5. Fetch operands
6. Perform operation.
Some of these stages may be absorbed into a single step.
If an instruction in the pipeline is conditional (such as branch if zero), the condition may not be known for a while, because the calculation that produces it can be still in the pipeline when the result is needed. Then the pipe has to be "stalled" until the test can be completed (inefficient!) or a guess is made as to the outcome and if it later turns out wrong then the pipe has to be cleared and some of the instructions re-executed. This is very messy!
In a modern CPU this is further complicated by such things as cache memory where recently used instructions and data are kept to save having to fetch them from main memory, also pre-fetch which gets several extra instructions from memory ready to be executed when needed. Hyper-threading can also be provided; broadly, this looks for execution cycles that can't be used because the pipeline is stalled, and runs a different program to take advantage of the spare time. It looks a bit like a second CPU with 30% or so of additional performance.
So the answer to your question is: it depends on the CPU, but typically the first stage is to fetch the next opcode from memory
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∙ 12y ago
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∙ 13y agoFetch
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What nonlinear pipelining?
Nonlinear Pipeline  Dynamic  Multifunction  Allows feed back and feed forward connections,in addition to the streamline connections.  More than one output; the output of the pipelineis not necessarily from the last stage.
Difference between static pipeline and dynamic pipeline?
static pipelining - it is composition of stages one after another means that the output of one stage is become input to the next stage we also called it linear pipelining. it is further divided in two types synchronous and asynchronous. dynamic pipeling- in it stages are connected in a liner fashion but this kind of pipeling used feedforward and feed backword connections as a input to the stages.it perform variable function but static perform fixed functions. in dynamic pipelining we can take intermediate outputs.
What is the typical use of a microphone?
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A rocket is designed to drop its first stage mid flight due to malfunction. If this does not occur what is a possible result of this malfunction?
Since there is likely to be a small amount of unburnt fuel remaining in the first stage, when the second stage ignites, it will destroy the first stage completely. This is as a direct result of the unburnt fuel being heated past its flashpoint. The resulting explosion would obliterate the second stage (since it's still full of fuel) and the rest of the rocket, too. The whole "chain reaction" would happen in seconds! The rocket would also be too heavy to reach its destination.
What is the meaning of stage clips in microsope?
The stage of a microscope is the small flat platform upon which you mount your specimen slides. Stage clips - usually a pair, are designed to hold the specimen slide securely in place.
Countries involved in first stage of west African gas pipeline projects?
The Countries involved in the First stage of West African Gas Pipeline project are Nigeria, Benin, Togo and Ghana.
The countries that will be in the first stage of the west African gas pipeline project are?
The countries involved in the first stage of the West African Gas Pipeline project are Nigeria, Benin, Togo, and Ghana. These countries are connected by a pipeline that allows for the transportation of natural gas across West Africa to support energy needs and promote regional cooperation.
What is pipeline register?
"pipeline registers" are inserted in-between pipeline stages, and are clocked synchronously. The time between each clock signal is set to be greater than the longest delay between pipeline stages, so that when the registers are clocked, the data that is written to them is the final result of the previous stage. abhishek jaiswal
Hallucinations are typical occurrences in what stage of sleep?
Stage 1 Sleep
What is the difference between instruction pipelining and arithmetic pipelining?
Arithmetic pipelines differ from instruction pipelines in some important ways. They are generally synchronous. This means that each stage executes in a fixed number of clock cycles. In a synchronous pipeline, moreover, no buffering between stages is provided. Each stage must be ready to accept the data passed from a previous stage when that data is produced.Another important difference is that an arithmetic pipeline may be nonlinear. The "stages" in this type of pipeline are associated with key processing components such as adders, shifters, etc. Instead of a steady progression through a fixed sequence of stages, a task in a nonlinear pipeline may use more than one stage at a time, or may return to the same stage at several points in processing.
Hallucinations are typical occurrences in?
Stage 1 sleep
What is the first stage in typical four stage cpu pipeline?
Different CPU designs use many different pipelining models with varying numbers of stages. The more stages, the more powerful your CPU is likely to be, but it is also much more complicated to design. Typical stages go like this: 1. Calculate next execution address (often just incrementing the address pointer, and not needing a separate pipeline stage) 2. Fetch instruction 3. Decode instruction 4. Calculate operand address(es) 5. Fetch operands 6. Perform operation. Some of these stages may be absorbed into a single step. If an instruction in the pipeline is conditional (such as branch if zero), the condition may not be known for a while, because the calculation that produces it can be still in the pipeline when the result is needed. Then the pipe has to be "stalled" until the test can be completed (inefficient!) or a guess is made as to the outcome and if it later turns out wrong then the pipe has to be cleared and some of the instructions re-executed. This is very messy! In a modern CPU this is further complicated by such things as cache memory where recently used instructions and data are kept to save having to fetch them from main memory, also pre-fetch which gets several extra instructions from memory ready to be executed when needed. Hyper-threading can also be provided; broadly, this looks for execution cycles that can't be used because the pipeline is stalled, and runs a different program to take advantage of the spare time. It looks a bit like a second CPU with 30% or so of additional performance. So the answer to your question is: it depends on the CPU, but typically the first stage is to fetch the next opcode from memory
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In a typical business cycle what stage immediately follows a peak?
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The first stage of a diamond is carbon.
