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PACDB, PACDZB

Pointer Authentication Code for data address, using key B

This instruction calculates and inserts a Pointer Authentication Code for a data address, using a modifier and key B.

The address is in the general-purpose register that is specified by <Xd>.

The modifier is:

• In the general-purpose register or stack pointer that is specified by <Xn|SP> for PACDB.
• The value zero, for PACDZB.

Integer
(FEAT_PAuth)

Decode for all variants of this encoding

if !IsFeatureImplemented(FEAT_PAuth) then EndOfDecode(Decode_UNDEF); end; var source_is_sp : boolean = FALSE; let d : integer = UInt(Rd); let n : integer = UInt(Rn); if Z == '0' then // PACDB if n == 31 then source_is_sp = TRUE; end; else // PACDZB if n != 31 then EndOfDecode(Decode_UNDEF); end; end;