CLREX -- A64

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CLREX -- A64

CLREX

Clear exclusive

This instruction clears the local monitor of the executing PE.

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1	1	0	1	0	1	0	1	0	0	0	0	0	0	1	1	0	0	1	1	CRm				0	1	0	1	1	1	1	1
																								op2			Rt

Encoding

CLREX {#<imm>}

Decode for this encoding

// CRm field is ignored

Assembler Symbols

<imm>

Is an optional 4-bit unsigned immediate, in the range 0 to 15, defaulting to 15 and encoded in the "CRm" field.

Operation

ClearExclusiveLocal(ProcessorID());

2026-03_rel 2026-03-26 20:48:11

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
1	1	0	1	0	1	0	1	0	0	0	0	0	0	1	1	0	0	1	1	CRm				0	1	0	1	1	1	1	1
																								op2			Rt

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
1	1	0	1	0	1	0	1	0	0	0	0	0	0	1	1	0	0	1	1	CRm				0	1	0	1	1	1	1	1
																								op2			Rt

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
1	1	0	1	0	1	0	1	0	0	0	0	0	0	1	1	0	0	1	1	CRm				0	1	0	1	1	1	1	1
																								op2			Rt