LDRAA, LDRAB, LDRAB
Load Register, with pointer authentication.
simm}] ; LDRAA
simm}]! ; LDRAA
simm}] ; LDRAB
simm}]! ; LDRAB
- Is the 64-bit name of the general-purpose register to be transferred.
- Is the 64-bit name of the general-purpose base register or stack pointer.
- Is the optional signed immediate byte offset, in the range -512 to 511, defaulting to 0.
Supported in the Arm®v8.2-A architecture and later.
Load Register, with pointer authentication. This instruction authenticates an address from a base register using a modifier of zero and the specified key, adds an immediate offset to the authenticated address, and loads a 64-bit doubleword from memory at this resulting address into a register.
Key A is used for
LDRAA, and key B is used for
If the authentication passes, the PE behaves the same as for an
LDR instruction. If the authentication fails, a Translation fault is generated.
The authenticated address is not written back to the base register, unless the pre-indexed variant of the instruction is used. In this case, the address that is written back to the base register does not include the pointer authentication code.
For information about memory accesses, see Load/Store addressing modes in the Arm® Architecture Reference Manual Arm®v8, for Arm®v8‑A architecture profile.