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PACM -- A64

PACM

Pointer authentication modifier

This instruction is used to set the value of PSTATE.PACM to 1.

If FEAT_PAuth_LR is not implemented, this instruction behaves as a NOP.

System
(FEAT_PAuth_LR)

313029282726252423222120191817161514131211109876543210
11010101000000110010010011111111
CRmop2

Encoding

PACM

Decode for this encoding

if !IsFeatureImplemented(FEAT_PAuth_LR) then EndOfDecode(Decode_NOP); end;

Operation

PSTATE.PACM = if IsPACMEnabled() then '1' else '0';


2025-09_rel_asl1 2026-03-12 12:57:38

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