PACNBIASPPC

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

The address is in X30.

The first modifier is in SP.

The second modifier is the value of PC.

Integer
(FEAT_PAuth_LR)

313029282726252423222120191817161514131211109876543210
11011010110000011000001111111110
sfSopcode2opcodeRnRd

PACNBIASPPC

if !IsFeatureImplemented(FEAT_PAuth_LR) then UNDEFINED; constant integer d = 30;

Operation

X[d, 64] = AddPACIA2(X[d, 64], SP[], PC64);


Internal version only: aarchmrs v2024-03_relA, pseudocode v2024-03_rel, sve v2024-03_rel ; Build timestamp: 2024-03-26T09:45

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