PACNBIBSPPC

Pointer Authentication Code for return address, using key B, not a Branch Target. This instruction computes and inserts a pointer authentication code for an instruction address, using two modifiers and key B.

The address is in X30.

The first modifier is in SP.

The second modifier is the 64-bit value of PC.

Integer
(FEAT_PAuth_LR)

313029282726252423222120191817161514131211109876543210
11011010110000011000011111111110

PACNBIBSPPC

if !IsFeatureImplemented(FEAT_PAuth_LR) then UNDEFINED;

Operation

X[30, 64] = AddPACIB2(X[30, 64], SP[], PC64);


Internal version only: isa v33.74, AdvSIMD v29.23, pseudocode v2023-09_rel, sve v2023-09_rc3 ; Build timestamp: 2023-09-27T17:06

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