CSEL

Conditional Select writes, in the destination capability register, the value of the first source capability register if the condition is TRUE, and otherwise writes the value of the second source capability register.

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	0	0	0	1	0	1	1	0	Cm					cond				1	1	Cn					Cd

CSEL <Cd>, <Cn>, <Cm>, <cond>

integer d = UInt(Cd); integer n = UInt(Cn); integer m = UInt(Cm);

Assembler Symbols

<Cd>	Is the capability name of the destination register, encoded in the "Cd" field.

<Cn>	Is the capability name of the first source register, encoded in the "Cn" field.

<Cm>	Is the capability name of the second source register, encoded in the "Cm" field.

<cond>

Is one of the standard conditions, encoded in cond:

cond	<cond>
0000	EQ
0001	NE
0010	CS
0011	CC
0100	MI
0101	PL
0110	VS
0111	VC
1000	HI
1001	LS
1010	GE
1011	LT
1100	GT
1101	LE
1110	AL
1111	NV

Operation

CheckCapabilitiesEnabled(); Capability result; if ConditionHolds(cond) then result = C[n]; else result = C[m]; C[d] = result;

Internal version only: isa v32.13, AdvSIMD v29.04, pseudocode morello-2022-01_rc2, capabilities morello-2022-01_rc2 ; Build timestamp: 2022-01-11T11:23