TRCIT, Trace Instrumentation

The TRCIT characteristics are:

Purpose

Generates an instrumentation packet in the trace.

Configuration

This instruction is present only when FEAT_ITE is implemented and FEAT_AA64 is implemented. Otherwise, direct accesses to TRCIT are UNDEFINED.

Attributes

TRCIT is a 64-bit System instruction.

Field descriptions

63	62	61	60	59	58	57	56	55	54	53	52	51	50	49	48	47	46	45	44	43	42	41	40	39	38	37	36	35	34	33	32
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
VALUE
VALUE

VALUE, bits [63:0]

Value to be included in the Instrumentation packet.

Executing TRCIT

Accesses to this instruction use the following encodings in the System instruction encoding space:

TRCIT <Xt>

op0	op1	CRn	CRm	op2
0b01	0b011	0b0111	0b0010	0b111

if !(IsFeatureImplemented(FEAT_ITE) && IsFeatureImplemented(FEAT_AA64)) then UNDEFINED; elsif PSTATE.EL == EL0 then AArch64.TRCIT(X[t, 64]); elsif PSTATE.EL == EL1 then AArch64.TRCIT(X[t, 64]); elsif PSTATE.EL == EL2 then AArch64.TRCIT(X[t, 64]); elsif PSTATE.EL == EL3 then AArch64.TRCIT(X[t, 64]);

21/03/2025 17:53; 154105dd5041532b480d9ef0c018b8420cbe5c19