GCSSS2

Guarded Control Stack Switch Stack 2 validates that the most recent entry of the Guarded control stack being switched to contains an In-progress cap entry, stores a Valid cap entry to the Guarded control stack that is being switched from, and sets Xt to the Guarded control stack pointer that is being switched from.

This is an alias of SYSL. This means:

System
(FEAT_GCS)

313029282726252423222120191817161514131211109876543210
110101010010101101110111011Rt
Lop1CRnCRmop2

GCSSS2 <Xt>

is equivalent to

SYSL <Xt>, #3, C7, C7, #3

and is always the preferred disassembly.

Assembler Symbols

<Xt>

Is the 64-bit name of the general-purpose destination register, encoded in the "Rt" field.

Operation

The description of SYSL gives the operational pseudocode for this instruction.


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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