Index

RET

Return from subroutine branches unconditionally to an address in a register, with a hint that this is a subroutine return.

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
1 1 0 1 0 1 1 0 0 1 0 1 1 1 1 1 0 0 0 0 0 0 Rn 0 0 0 0 0
Z op A M Rm

RET {<Xn>}

integer n = UInt(Rn);

Assembler Symbols

<Xn>

Is the 64-bit name of the general-purpose register holding the address to be branched to, encoded in the "Rn" field. Defaults to X30 if absent.

Operation

bits(64) target = X[n, 64];

if (IsFeatureImplemented(FEAT_GCS) && GCSPCREnabled(PSTATE.EL)) then
    target = LoadCheckGCSRecord(target, GCSInstType_PRET);
    SetCurrentGCSPointer(GetCurrentGCSPointer() + 8);

// Value in BTypeNext will be used to set PSTATE.BTYPE
BTypeNext = '00';

BranchTo(target, BranchType_RET, FALSE);