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What are the two types of instruction execution?
The two types of instruction execution are pipelining and not pipelining. Pipelining involves breaking down instruction execution into multiple stages that can overlap, improving efficiency. Not pipelining involves executing one instruction at a time without overlapping stages.
If a processor has begun executing an instruction before it completes the previous instruction it must be using?
pipelining
What is the term that describes the methodology by which the CPU begins running a new instruction before it finishes with the current instruction?
pipelining
What are the advantages of pipelining in microprocessor?
Pipelining in microprocessors enhances performance by allowing multiple instruction phases to be executed simultaneously, effectively increasing throughput. This concurrent processing reduces idle time for execution units, leading to faster instruction completion. Additionally, pipelining can improve overall CPU efficiency by maximizing resource utilization and minimizing latency in instruction execution. However, it may introduce complexity in handling hazards and dependencies between instructions.
The ability to work on more than one instruction during the four stages of processing is called?
pipelining
What frees processors from having to wait for one instruction to compleate the machine cycle before fetching the next?
pipelining
What is difference between super scalar pipeline and super pipeline?
Supserscaling and pipelining both increase instruction output. Superscaling also uses pipelining, however, superscaling allows for all the processes to be carried out at one time.
What is the drawback of pipelining?
The primary drawback of pipelining is the potential for hazards, which can disrupt the smooth flow of instruction execution. These hazards can be categorized into data hazards, control hazards, and structural hazards, leading to stalls or delays in the pipeline. Additionally, if the architecture lacks sufficient resources to handle simultaneous instruction processing, it can result in increased complexity and reduced efficiency. Overall, while pipelining enhances throughput, it requires careful management to mitigate these issues.
How do you implement instruction level parallelism?
Instruction Level Parallelism (ILP) can be implemented through techniques such as pipelining, superscalar architecture, and out-of-order execution. Pipelining allows multiple instruction stages to be processed simultaneously, while superscalar architectures enable multiple instruction executions per clock cycle. Out-of-order execution rearranges instruction execution to optimize resource use and minimize stalls. Compilers can also enhance ILP by reordering instructions and identifying independent operations to maximize parallel execution opportunities.
What is pipelining in pic microcontroller?
In PIC Microcontroller , During the Fatching of instruction no. 1it needs of one clock cycle, then after for the exicution of instruction no. 1 it reqires one extra clock cycle , but at the same time it fatches inst. no. 2 . Similarly, during the execution time of inst. no. 2 , it fatches inst. no. 3 and so on.In other words we can say that, PIC Microcontroller requires 2 clock cycle at starting the after it requires only one clock pulse. In this way we can say that instruction pipelining is done in PIC microcontroller.
Are processors that use pipelining slower because they have to wait for one instruction to complete the machine cycle before fetching the next?
No. Pipeline processors are faster because they do not have to wait to fetch the next instruction, because the next instruction was "pre-fetched" already.
Difference of scalar pipelining and vector pipelining?
Scalar pipelining offers an alternative to vector pipelining whereby the cycles are used in a linear fashion. Vector pipelining performs vector computations.
