Base Instructions | SIMD&FP Instructions | SVE Instructions | SME Instructions | Index by Encoding | Shared Pseudocode | Proprietary Notice

## GCSPUSHM

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

This is an alias of SYS. This means:

- The encodings in this description are named to match the encodings of SYS.
- The description of SYS gives the operational pseudocode, any constrained unpredictable behavior, and any operational information for this instruction.

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

####

GCSPUSHM <Xt>

is equivalent to

SYS #3, C7, C7, #0, <Xt>

and is always the preferred disassembly.

### Assembler Symbols

<Xt> | Is the 64-bit name of the general-purpose source register, encoded in the "Rt" field.

### Operation

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

Base Instructions | SIMD&FP Instructions | SVE Instructions | SME Instructions | Index by Encoding | Shared Pseudocode | Proprietary Notice

Internal version only: isa v33.64, AdvSIMD v29.12, pseudocode v2023-06_rel, sve v2023-06_rel ; Build timestamp: 2023-07-04T19:42

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