WFI

Wait for interrupt

This instruction is a hint instruction that indicates that the PE can enter a low-power state and remain there until a wakeup event occurs. For more information, see Wait For Interrupt.

As described in Wait For Interrupt, the execution of a WFI instruction that would otherwise cause entry to a low-power state can be trapped to a higher Exception level.

313029282726252423222120191817161514131211109876543210
11010101000000110010000001111111
CRmop2

WFI

// Empty.

Operation

constant integer localtimeout = 1 << 64; // No local timeout event is generated Hint_WFI(localtimeout, WFxType_WFI);


Internal version only: aarchmrs v2024-06_diff-tag2, pseudocode v2024-06_rel, sve v2024-06_rel ; Build timestamp: 2024-09-19T21:47

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