PAC (Security) Instructions

20 ARM instructions in this extension - click any row for encoding, pseudocode, and full documentation.

Mnemonic ⇅ Syntax Format ⇅ Summary
autda AUTDA <Xd>, <Xn> Data Processing Authenticates a data address signed with Key A.
autdb AUTDB <Xd>, <Xn> Data Processing Authenticates a data address signed with Key B.
autia AUTIA <Xd>, <Xn|SP> Data Processing Authenticates a pointer signed with Key A. Corrupts pointer if failed.
autia AUTIA <Xd>, <Xn> Data Processing Authenticates an instruction address signed with Key A.
autib AUTIB <Xd>, <Xn|SP> Data Processing Authenticates a pointer signed with Key B.
autib AUTIB <Xd>, <Xn> Data Processing Authenticates an instruction address signed with Key B.
ldraa LDRAA <Xt>, [<Xn|SP>, #<simm>] Load/Store Loads a value, authenticating the address with Key A.
ldrab LDRAB <Xt>, [<Xn|SP>, #<simm>] Load/Store Loads a value, authenticating the address with Key B.
pacda PACDA <Xd>, <Xn|SP> Data Processing Signs a data pointer using Key A.
pacda PACDA <Xd>, <Xn> Data Processing Signs a data address using Key A.
pacdb PACDB <Xd>, <Xn|SP> Data Processing Signs a data pointer using Key B.
pacdb PACDB <Xd>, <Xn> Data Processing Signs a data address using Key B.
pacga PACGA <Xd>, <Xn>, <Xm> Data Processing Computes a pointer authentication code for an address and modifier.
pacia PACIA <Xd>, <Xn|SP> Data Processing Signs a pointer in Xd using Key A and modifier Xm (or SP).
pacia PACIA <Xd>, <Xn> Data Processing Signs an instruction address using Key A.
pacib PACIB <Xd>, <Xn|SP> Data Processing Signs a pointer in Xd using Key B.
pacib PACIB <Xd>, <Xn> Data Processing Signs an instruction address using Key B.
xpacd XPACD <Xd> Data Processing Removes the PAC signature from a data pointer.
xpaci XPACI <Xd> Data Processing Removes the PAC signature from an instruction pointer.
xpaclri XPACLRI System Removes the pointer authentication code from an instruction address.