pub unsafe fn __wfi()
🔬This is a nightly-only experimental API. (
stdarch_arm_hints
#117218)Available on AArch64 or
target_arch="arm64ec"
only.Expand description
Generates a WFI (wait for interrupt) hint instruction, or nothing.
The WFI instruction allows (but does not require) the processor to enter a low-power state until one of a number of asynchronous events occurs.