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SEVL

Send Event Local is a hint instruction that causes an event to be signaled locally without requiring the event to be signaled to other PEs in the multiprocessor system. It can prime a wait-loop which starts with a WFE instruction.

It has encodings from the following instruction sets: A32 ( A1 ) and T32 ( T1 and T2 ) .

A1

313029282726252423222120191817161514131211109876543210
!= 1111001100100000(1)(1)(1)(1)(0)(0)(0)(0)00000101
cond

A1

SEVL{<c>}{<q>}

// No additional decoding required

T1

1514131211109876543210
1011111101010000

T1

SEVL{<c>}{<q>}

// No additional decoding required

T2

15141312111098765432101514131211109876543210
111100111010(1)(1)(1)(1)10(0)0(0)00000000101

T2

SEVL{<c>}.W

// No additional decoding required

For more information about the constrained unpredictable behavior of this instruction, see Architectural Constraints on UNPREDICTABLE behaviors.

Assembler Symbols

Operation

if ConditionPassed() then
    EncodingSpecificOperations();
    SendEventLocal();
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