Description: WFE, which stands for ‘Wait For Event’, is an instruction used in various processor architectures that allows the processor to enter a low-power state until a specific event occurs. This instruction is fundamental for efficient energy management in mobile devices and embedded systems, where battery life is critical. By executing WFE, the processor suspends its activity, thereby reducing its energy consumption. This wait state is maintained until an external event, such as an interrupt or a change in the state of a device, wakes it up. The implementation of WFE is part of energy-saving strategies that enable systems to optimize their performance and extend battery life. Additionally, this instruction is compatible with other features of processor architectures, such as interrupt handling and synchronization between multiple processing cores, making it a versatile tool in the design of efficient and responsive systems.
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