GCSSS2

Guarded Control Stack switch stack 2

This instruction 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.

Encoding: System

Variants: FEAT_GCS (ARMv9.4)

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

GCSSS2 <Xt>

Equivalent to: SYSL <Xt>, #3, C7, C7, #3

Explanations

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