sevl

Send Event Local (A32)

SEVL

Sends an event locally.

Pseudocode Operation

Send event signal to local processor

Encoding

Binary Layout

cond

31:28

00110

27:23

0

22

10

21:20

00

19:18

00

17:16

1

15

1

14

1

13

1

12

000000000101

11:0

 

Format System Hint

Opcode 0x0320F005

Extension A32 (Base)

Operands

Related

Other forms of sevl

• sevl Send Event Local
• sevl Send Event Local (Thumb)

More in A32 (Base)

Reference

View in Arm A64 ISA Reference ↗ Arm AArch32 ISA

Instruction Forms

Encoding	Instruction		ISA		Bit pattern
0x0320F005	SEVL{<c>}{<q>}		A32		cond | 00110 | 0 | 10 | 00 | 00 | 1 | 1 | 1 | 1 | 000000000101
0xBF50	SEVL{<c>}{<q>}		T32		10111111 | 0101 | 0000
0xF3AF8005	SEVL{<c>}.W		T32		111100111010 | 1 | 1 | 1 | 1 | 10 | 0 | 0 | 0 | 000 | 0000 | 0101

Description

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.

Operation

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