MOV (scalar)

Move vector element to scalar

This instruction duplicates the specified vector element in the SIMD&FP source register into a scalar, and writes the result to the SIMD&FP destination register.

Depending on the settings in the CPACR_EL1, CPTR_EL2, and CPTR_EL3 registers, and the current Security state and Exception level, an attempt to execute the instruction might be trapped.

This is an alias of DUP (element). This means:

The encodings in this description are named to match the encodings of DUP (element).
The description of DUP (element) gives the operational pseudocode, any constrained unpredictable behavior, and any operational information for this instruction.

Scalar class

(FEAT_AdvSIMD)

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
0	1	0	1	1	1	1	0	0	0	0	imm5					0	0	0	0	0	1	Rn					Rd
		op															imm4

Encoding

MOV <V><d>, <Vn>.<T>[<index>]

is equivalent to

DUP <V><d>, <Vn>.<T>[<index>]

and is always the preferred disassembly.

Assembler Symbols

<V>

Is the destination width specifier, encoded in imm5:

imm5	<V>
x0000	RESERVED
xxxx1	B
xxx10	H
xx100	S
x1000	D

<d>	Is the number of the SIMD&FP destination register, encoded in the "Rd" field.

<Vn>	Is the name of the SIMD&FP source register, encoded in the "Rn" field.

<T>

Is the element width specifier, encoded in imm5:

imm5	<T>
x0000	RESERVED
xxxx1	B
xxx10	H
xx100	S
x1000	D

<index>

Is the element index encoded in imm5:

imm5	<index>
x0000	RESERVED
xxxx1	UInt(imm5<4:1>)
xxx10	UInt(imm5<4:2>)
xx100	UInt(imm5<4:3>)
x1000	UInt(imm5<4>)

Operation

The description of DUP (element) gives the operational pseudocode for this instruction.

Operational Information

The description of DUP (element) gives the operational information for this instruction.