Guarded Control Stack push exception return record
This instruction decrements the current GCS pointer register by the size of a Guarded Control Stack exception return record and stores an exception return record to the Guarded Control Stack.
For more information, see GCSPUSHX, Guarded Control Stack Push exception return record.
This is an alias of SYS. This means:
| 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 | |||||||||||||||||||||||||||
The description of SYS gives the operational pseudocode for this instruction.
2026-03_rel 2026-03-26 20:48:11
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