Index

GCSPUSHX

Guarded Control Stack Push exception return record decrements the current Guarded control stack pointer register by the size of a Guarded control stack exception return record and stores an exception return record to the Guarded control stack.

This is an alias of SYS. This means:

System
(FEAT_GCS)

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 0 1 0 0 0 0 1 0 0 0 0 1 1 1 0 1 1 1 1 0 0 Rt
L op1 CRn CRm op2

GCSPUSHX {<Xt>}

is equivalent to

SYS #0, C7, C7, #4{, <Xt>}

and is always the preferred disassembly.

Assembler Symbols

<Xt>

Is the 64-bit name of the optional general-purpose source register, defaulting to '11111', encoded in the "Rt" field.

Operation

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