CFINV -- A64

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CFINV -- A64

CFINV

Invert carry flag

This instruction inverts the value of the PSTATE.C flag.

System
(FEAT_FlagM)

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	0	0	0	0	0	1	0	0	(0)	(0)	(0)	(0)	0	0	0	1	1	1	1	1
													op1							CRm				op2			Rt

Encoding

CFINV

Decode for this encoding

if !IsFeatureImplemented(FEAT_FlagM) then EndOfDecode(Decode_UNDEF); end;

Operation

PSTATE.C = NOT(PSTATE.C);

Operational information

This instruction is a data-independent-time instruction as described in About PSTATE.DIT.

2025-09_rel_asl1 2026-03-12 12:57:38

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	0	0	0	0	0	1	0	0	(0)	(0)	(0)	(0)	0	0	0	1	1	1	1	1
													op1							CRm				op2			Rt

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	0	0	0	0	0	1	0	0	(0)	(0)	(0)	(0)	0	0	0	1	1	1	1	1
													op1							CRm				op2			Rt

CFINV

System(FEAT_FlagM)

Encoding

Decode for this encoding

Operation

Operational information

System
(FEAT_FlagM)

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	0	0	0	0	0	1	0	0	(0)	(0)	(0)	(0)	0	0	0	1	1	1	1	1
													op1							CRm				op2			Rt