asebour.blogg.se - Wxtoimg decoding istruction

This reduces the efficiency of the system. The figure below shows you the sequential execution of the instruction processing one stage in one clock cycle.

So, once the instruction is fetched by the fetching unit of the hardware and is forwarded to other hardware section for decoding, operand fetches, execution and operand store the fetching unit of hardware has to sit idle till the operand store stage is completed. Now each stage is handled by the different sections of the hardware. Operand Store: The result of execution is stored.Instruction Execution: The processor performs the desired operation.Operand fetch: If the execution of the instruction requires operand then the processor fetches operand from the main memory or cache.Instruction decoding: The processor interprets instruction and determines the operation that has to be performed.

Instruction fetches: Fetch the instruction from the main memory or cache.

Now if we divide the instruction execution into stages then it could be divided into: In this way, the processor processes each instruction from the start till it finishes execution and then it fetches the next instruction for instruction. Finally, the processor stores the result to the specified memory location. If the operation requires operands then the processor fetches the operands from the memory and then perform the required operation. Content: Instruction Pipelining in Computer ArchitectureĬonsider that we have a set of instructions to get executed, let us see how it begins? The processor fetches an instruction from the memory, decode the instruction and determine the kind of operation that has to be performed. We will also discuss some advantages of instruction pipelining. In this context, we will discuss the instruction pipelining, how it works along with the pipelining hazards.